Metal Detector

METARIDDER MHD Series
User’s Manual
MHD-E (04) E/ 201809

Saika Technological Institute Foundation

Introduction
Thank you for purchasing METARIDDER MHD Series (hereinafter referred to as the machine).
Read this manual before and during the operation to use the machine properly.






Symbols used in this manual ··········
Safety Precautions ························
Notes on the Operation ··················
Warning Labels ····························

1

1
1
2
3

4

4.1 Routine Inspection ························
4.2 Routine Cleaning ··························

4.3 Replacing Parts ····························

1.2 Names and Functions of Parts ········ 1-4

2

2-2

2.1.1 Running ·····························
2.1.2 Stopping·····························

2-2
2-3

2.2 Count Reset ································
2.2.1 Count Reset ························

2-4
2-4

2.3 Saving Records (.CSV Files) andHandling SD Memory Cards ··········· 2-5
2.3.1 Types of Records andDestination Folders in the SD
Memory Card ······················ 2-5
2.3.2 Storage Methods for Records · 2-5
2.3.3 Manual Saving of Records ····· 2-6
2.3.4 Automatic (Forced) Saving ofRecords ·····························
2-7
2.3.5 SD Memory Card
Specifications and Handling ··· 2-8

3

5

Various Settings and Other
Operations

3.1 Various Settings ···························

3-2

3.1.1 Threshold Setting ················· 3-2
3.1.2 Standard Setting ·················· 3-6
3.1.3 Function Setting ··················· 3-8
3.1.4 Detection & State Records ····· 3-12
3.1.5 Error History························ 3-15
3.1.6 State & Wave Form Plot ········ 3-17

Errors and Troubleshooting

5.1 Errors ········································· 5-2

5.1.1 Errors and Notification ··········· 5-2
5.1.2 “Warning Display” screen ······· 5-2
5.1.3 List of Error items ················· 5-3

5.2 Troubleshooting····························
5.2.1 Troubleshooting ···················
5.2.2 Troubleshooting Other
Problems ····························

Basic Operations

2.1 Running & Stopping ······················

4-6

4.3.1 Replacing Batteries for theControl Devices ··················· 4-6
4.3.2 Replacing the Cooling Fan ····· 4-8

1.1.1 Detection Principle ··············· 1-2
1.1.2 Features·····························
1-3
1.2.1 Names and Functions of
Various Sections of theMachine ·····························
1-4
1.2.2 Screen Display ···················· 1-8
1.2.3 Detection Sensitivity ············· 1-12
1.2.4 External Output 《Standard》 ·· 1-12
1.2.5 External Output 《Option》······ 1-14

4-2
4-4

4.2.1 Routine Cleaning ················· 4-4
4.2.2 Points of Cleaning ················ 4-5

Before Using the Machine

1.1 Detection Principle and Features ····· 1-2

Maintenance

6

5-4
5-7

Specifications

6.1 Specifications ······························
6.2 Dimensions ································

7

5-4

6-2
· 6-3

Warranty and Customer
Support

7.1 Warranty Information ····················· 7-2
7.2 Inquiries & Consultations on the
Product ······································· 7-2

Metal Detector

METARIDDER

Symbols used in this manual
Following symbols are used in this manual. Please understand the meaning of each symbol inusing the machine.
Indication

Significance

WARNING Neglect of warnings may result in the death or serious injury of the operator.
CAUTION Neglect of cautions may result in a minor injury of the operator or a property damage.
ImportantThings to be observed and precautions in handling the machine.
Supplementary information and hints.
Part number and other memos.

Safety Precautions<Warnings>
WARNING ⚫
⚫

⚫

⚫

⚫

⚫
⚫

Do not disassemble or modify the machine.
May result in an injury or a machine failure.
Stop the use if a smoke, abnormal smell or noise is detected.
Continued use may cause a fire. Turn OFF the main circuit breaker immediately
and then turn OFF the primary power supply as well. If a power plug is provided,
pull out the plug from the outlet.
Contact SAIKA or the place of purchase for assistance.
Always use the machine at the rated voltage.
Using the machine at an improper voltage may cause a fire or the operator to suffer
an electrical shock.
Be careful in handling the power cable.
Do not pull the cable, put heavy objects on the cable or place heat source near thecable. Doing so may damage the cable, causing a fire or electric shock to theoperator.
In servicing and/or inspecting the machine, always turn OFF the Operation
Switch and the main circuit breaker.
If a plug is provided, pull out the plug from the power outlet.
Unexpected operation of the machine may cause an injury or electric shock.
Do not touch the power plug with a wet hand. (For a machine with a plug)
The operator is susceptible to an electric shock due to the moisture on the hand.
Do not open the damper door and reach inside with the power ON.
Unexpected operation of the machine may lead to an injury.

1Metal Detector

METARIDDER<Cautions>
CAUTION⚫
⚫
⚫

⚫

The machine is assembled with precision. Do not expose it to excessive
vibrations and/or mechanical impacts.
Install the machine on a level floor without a vibration.
Avoid using the machine under a high temperature and humidity.
The operating temperature for the machine is 5C to 45C. * Dew formation must
be avoided.
If the machine is not going to be used for a prolonged period, always turnOFF the main circuit breaker and the power supply.
If a plug is provided, pull out the plug from the power outlet.

Notes on the Operation[1] The machine has been adjusted to detect and remove metal pieces contained in virgin plasticpellets and pulverized plastic pellets. Consult SAIKA if the machine is to be used for materials
other than pellets or other purposes.
[2] Install the machine on a level so that the materials subject to inspection will fall freely through themetal detector unit.
[3] Although sufficient care is taken to make the machine resists vibrations and environmental
conditions, the user may be requested to adjust the sensitivity to a weaker level depending on
the environment to avoid malfunctions due to vibrations and/or noise. If such an adjustment isrequired, note that metal detection as described in the specifications may not be possible.
[4] Always clean the machine before changing the materials to be loaded. Materials remaining in themachine may contaminate the material to be loaded next. (Flushing the machine with water isstrictly prohibited.)[5] The ceramic materials used for the section coming in contact with pellets within the sensor may
break due to an impact. In cleaning the machine, be extra careful not to apply impacts to theceramic material by poking or rubbing it with a metal rod.
[6] Do not disassemble the metal detector since it is enclosed in a metallic housing and assembled
with precision to eliminate effects of noises. Disassembling the metal detector will void the
product warranty and SAIKA may refuse to perform maintenance services thereafter.
[7] Use the machine at the rated voltage. Using it at a voltage other than the rated voltage may
result in a machine failure, damage on the machine or electric shock to the operator.
[8] Supply the power to the machine from a dedicated power supply. Supplying the power from otherdevices (such as a molding machine) may cause a malfunction due to the introduction of noises.
[9] The operating temperature of the machine is 5C to 45C and the material temperature is 5C to
70C. (*Dew formation must be avoided.)[10] In installing the machine, ensure to provide a grounding (Class D grounding). Otherwise,
malfunctions may occur.
Note that SAIKA will not be held responsible for secondary accidents and/or troubles other thanthose caused directly by the machine.

2

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METARIDDER
Warning Labels<1ch model>
Maintenance door, support plate

Rear side of the frame, transformer housing

3

4

2

1

<2ch model>
Maintenance door, support plate

Rear side of the frame, transformer housing

1

4

1

3

3

Metal Detector

METARIDDER<4ch model>
Maintenance door

1

Rear side of the frame, transformer housing

1

1

Inside the control panel

Fan guard

3<Common for all models>5

7 (also on the opposite side)6<example of a 2ch model>

4

Metal Detector

METARIDDERNo.

WARNING

1.2

Pinching fingers

Pay attention to open and close thecontrol panel door and the maintenancedoors.

3.5

Electric shock

Be extra careful not to suffer an electric
shock.

4

Support plate

A plate to prevent the machine to rollover.
(Not provided for the 4ch model.)6

Electric shock

Be extra careful not to suffer an electric
shock.

7

Pinching electric cables

Pay attention not to pinch cables ininstalling the fan guard.

[Table 1: List of warning labels]

5

Metal Detector

METARIDDER

1
Before Using the Machine
1.1 Detection Principle and Features ····················
1.1.1
1.1.2

Detection Principle ······························
1-2
Features············································ 1-3

1.2 Names and Functions of Parts························
1.2.1
1.2.2
1.2.3
1.2.4
1.2.5

1-2

1-4

Names and Functions of Various Sections of
the Machine ······································· 1-4
Screen Display ··································· 1-8
Detection Sensitivity ···························
1-12
External Output 《standard Output》 ······· 1-12
External Output 《Option Output》 ·········· 1-14

1-1

Metal Detector

METARIDDER
1.1

Detection Principle and Features

1.1.1

Detection Principle

The machine is designed to make a highly accurate metal detection by the adoption of Dielectric
Loss Isolated High Frequency Oscillation method, which was developed by SAIKA.
If a metal piece approaches the magnetic field A generated by the sensor, an eddy current runson the metal surface and the magnetic field B will be generated to cancel the magnetic field A.
The machine detects the disturbance caused by the generation of magnetic field B anddetermines if it is caused by a metal from the level of response.

Material

Metal piece

Magnetic field A
generated by the sensor

Magnetic field B generated
by the approaching metal
piece(opposite to A)

Sensor coilInternal tube of the sensor(ceramic)

Sensing area

1-2

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METARIDDER
1.1.2

Features

The machine is capable of detecting and removing metal pieces mixed in the material using ahighly sensitive metal detector.
⚫

The calibers offered for the user can select one depending on the sensitivity or the volume
to be treated.
* For the detection capability according to the caliber, refer to: Machine Specifications in
Section 6-1.

⚫

Three different models with a single channel, two channels and four channels are offered toaccommodate different levels of treatment.

⚫

The machine comes with a standard feature to save a history data file (.CSV) to an SD
memory card.
By retrieving various history information, such as those on the detections made, machine
status and errors, the data can be utilized for the management of the machine operation.

⚫

The display is made of a 5.7 inch TFT color LCD touch panel to provide an enhanced display
and operability.
If the user has selected an optional handy type touch panel, the panel can be separated fromthe door, enabling operations at locations where it is difficult to operate the machine undernormal circumstances.

⚫

An anti-static-electricity sensor (standard) reduces malfunctions due to the static electricity
on the material.

⚫

All types of metals, including stainless steel, aluminum, brass and copper that cannot be
eliminated by the magnetic detection, can be detected and removed.
* However, iron oxide, of which the property has changed, is excluded.

1-3

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METARIDDER
1.2

Names and Functions of Parts

1.2.1

Names and Functions of Various Sections of the Machine<1ch model>

4
9
5
1

6

2

7

8

3

10

14

11
15
12
16
13

17

1-4

Metal Detector

METARIDDER<2ch model>
4
9

5
6

1
2
3

10

8

14

11
15
12

13

16

17

1-5

Metal Detector

METARIDDER<4ch model>
4
9
5
6

3

1

2
8
7

14
10

15
11

12

16

13

1-6

Metal Detector

METARIDDER
Internal view
16
11

Shown on the photos is a 4ch model.
No.

Name

Function
Allows various settings, status display and saving logging data.

1

Touch panel

2

Control panel door

The touch panel is installed.

3

Circuit protector

Provides a protection against an overcurrent on the solenoid
for operating the discharge damper.
* Provided individually for each channels.

* For user operation* For user operation

4

Upper hopper

The hopper to load the material.

5

Buzzer

The buzzer sounds if there is an error.

6

Louver / cooling fan

A louver for ventilation.

7

Transformer (optional)

Converts the voltage of primary power supply. (For the use of primary power supplies
other than 100 VAC.)

8

Discharge chuteDischarge port for metal pieces.

9Light tower (optional)

Indicates the status of the machine.
Green: normal operation, Yellow: metal detected, Red: error

10Cooling fan / louver

For cooling inside the sensor housing.

11

Main circuit breaker

12

Power switch* Exchangeable with No. 10* Exchangeable with No. 6

Turns ON/OFF the power supply to the machine.
* For user operation
Turns ON/OFF the power supply to the controller(for operation).
* For user operation

13

Discharge damper

Transfers detected metal pieces and the material (pellets) to the discharge chute.

14

PLC unit

Performs the control other than the metal detection.

15

Control board

Control the metal detector.

16

Adjustment volume andcoaxial connector

A volume for adjusting the sensor output and a connector for an oscilloscope.
* Provided individually for each channels.
* For user operation17

Support plate

A plate for preventing the machine to roll over

* Not provided for the 4ch model.

[Table 2: Names of parts]

1-7

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METARIDDER
1.2.2

Screen Display

This section explains the Metal Detection (main) and Menu screens.
Upon turning ON the Power Switch with the main circuit breaker turned ON, the main screen will
be displayed after the startup screen.
( For the operational procedures, see Section 2.1.1 Operation.) Screen configuration

Power Switch ON

Metal Detection screen

Startup screen (displayed for about one minute)

5

12
1

13
1
14

2

10

3

9
8

4

6

11

7
<4ch model>[Metal Detection (main) screen]

1

4

2

5

3

6

<4ch model>[Menu screen]

1-8

Metal Detector

METARIDDER Names and functions of display fields[Main screen]No.

DisplayName

1

Status display* Fault screen
indication y

2Count reset
button345Function· Displays the status of the device.
* Switch to abnormal screen possible· Reset detection number. The screen will shift to "Reset number ofemissions" screen.
* See Section 2.2 " Count Reset".

• All channels for the relevant model are displayed.
Display of CH1 for the 1ch model.
Channel display Display of CH1 and CH2 for the 2ch model.
Display of CH1 to CH4 for the 4ch model.

Detection count

Menu button• The number of times a metal piece has been detected anddischarged.
* The display is made for each channel.
• Brings up the Menu screen.
* For further information on the Menu screen, see Section 3.1 Various
Settings.
· Open the option related information screen.
Detection mode indication* Carbon gain mode ”option”
Material information display* Management System ”option”

6

Information
display button

Auto threshold adjustment* Auto adjustment ”option”

Threshold value to use

Automatic calculation
value is valid

Automatic calculation in progress

7

Thresholddisplay8

Sensor voltage
display9

Sensortemperature
display• Displays the threshold for the metal detection.
* See Section 3.1.1 Threshold Setting to set the threshold.
• Displays the sensor output voltage during the operation.
* The display is made for each channel.
• Displays the temperature near the sensor board during theoperation.
* The display is made for each channel.

1-9Metal Detector

METARIDDER
10

11

Detection
voltage display• Displays the peak value when a metal piece has been detected.
* The display is made for each channel.

· Door safety switch"ON" detects "door closed" and "OFF" detects "toilet bowl"
Damper door
When the safety switch is "OFF (door open)", turn off the drive
status indication
power of the damper.
* Option※ Optional function
・Display communication status with PC for management system.

12・Not connected to management PC

Communication
status withmanagement
system・Management PC and connection (normal)
・Accepting count reset
・Accepting material information* Option・Accepting date and time information※ Optional function

13

Automatic
thresholdadjustment
Screen button· Display the "Automatic threshold adjustment" screen.
How to set
See Section 3.1.1 "Threshold auto adjustment".
※ Optional function* OptionPush to drive

14

Vibration Feeder
operation screen Operation screen
button* Option

Amplitude (speed)
Configuration[Table 3: Main screen display fields]

1-10Metal Detector

METARIDDER[Menu screen]No.

Display

Name

Function

1

Thresholdsetting• Brings up the Threshold Setting screen.
• Allows the setting of sensor sensitivity (threshold).
* See Section 3.1.1 Threshold Setting to set the threshold.

2Standard
setting• Brings up the Standard Setting screen.
• Allows the settings for the standard menus.
* See Section 3.1.2 Standard Setting to make settings.

3

Functionsetting• Brings up the Function Setting screen.
• Allows the settings for the functional menus.
* See Section 3.1.3 Function Setting to make settings.

4

Detection
record• Brings up the Detection Record screen.
* See Section 3.1.4 Detection & State Records for more information.

5

Error history• Brings up the Error History screen.
* See Section 3.1.5 Error History for more information.

6

State & wave
plot

• Brings up the State & Wave Plot screen.
* See Section 3.1.6 State & Wave Plot for more information.

[Table 4: Menu screen, menu items]

1-11

Metal Detector

METARIDDER
1.2.3

Detection Sensitivity

In using the machine, note that there is a difference in the sensor signal depending on the path ofthe detected metal inside the sensor even if the same metal piece is used.
Center of the sensor
Sensor unit

SensorSensor coil

Near the sensor wall

Center of the sensor(the distance to the sensor coil is big)

The detection response is the smallest.
(= lowest detection sensitivity)

Near the sensor wall(the distance to the sensor coil is small)

The detection response is the largest.
(= highest detection sensitivity)

Important

1.2.4

The detection sensitivity of the machine is set by assuming the metal pieces
to pass the center of the sensor.

External Output 《standard Output》

This section describes the external outputs of the machine. Use an external output connector to
output signals.
 Output signals

3

2
5

Rear view of the machine [shown is the 1ch model]

1-12

1
4

External output connector

Metal Detector

METARIDDER
Terminal

SignalDescription

1-2

Metal Detection Signal

Output period: 250 msec
* The output of the signal starts as soon as the discharge damper starts its
discharge operation.
Note) If multiple number of discharge dampers operate simultaneously, multiple
signals will be output in order with a one second interval.

1-3

Detector Ready Signal

Output period: during the normal operation* The signal will be turned OFF if an error occurs.

1-4

Discharge Frequency
Warning (*1) Signal

Output period: 250msec * Only for 2 and 4ch models(*1) See <<Discharge frequency setting>> on page 3-7.

1-5

Error integration signal

Output until error returns[Table 5: Output signal descriptions][Circuit diagram]
I/F Relay

External output connector

Relay output
Pin No,COM

IF-01
Metal Detection Signal

IF-02
Detector Ready Signal

IF-03
Discharge Frequency
Warning Signal
IF-04
Error integration signal[Output terminal specifications (1a relay)]
Type of output

Relay contact

Max. load current

6 A per contact

Min. switching load

10mA, 6 VDC (for reference only)

Initial contact resistanceLoad voltage

100 mΩ or less
240 VAC 1.5A or less, 30 VDC 0.11A or less

Output circuit insulation

Mechanical insulation
OFF → ON
ON → OFF

Response time

Approx. 15 msec
Approx. 20 msec

[Table 6: Contact specification]

Use a dedicated connector (male) for the connection with the external output connector.
Supplier: ＤＤＫ LTD.
Model: JMSP1305M-D (straight plug)
JMLP1305M-D (L-shaped plug)* 1ch model, 4ch model* 2ch model

1-13

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METARIDDER
JMPC13 (plug cap)

1.2.5

* common for all models

External Output 《Option Output》

As an optional function (* 1), metal detection signals of each CH can be outputted separatelyfrom the external interface.
* 1: This function is effective when the Carbon Gain function《Option》 (refer to 3.1.1 Thresholdsetting) is disabled.

Terminal

Signal nameOutput specification

CH1

1CH Detection signal

CH2

2CH Detection signal

Output time ：Min 300msec

CH4* It varies with the size of the metal.
*Please apply the control voltage from the receiving side.
3CH Detection signal
4CH Detection signal (See Table 8)

GND

commonCH3

Common to 4 points of CH 1-4※ Connect to 0V（GND）[Table 7: External output signal Description]【circuit diagram】

PLC-1 Body
Transistor (sink) output
Y10

Y11

Y010/CH1

Y011/CH2
Metal detection signal output by CH

Y12

Y13

COM2

Y012/CH3

Y013/CH4

Max. load current

DC load ：0.5A / 1Point

Response timeCH2

2CH 2Metal Detection

CH3

3CH3 Metal Detection

CH4

4CH Metal Detection

GND

GND(0V)
Terminal blockTransistor / sink output (4 Point common)

Output circuit insulation

1CH Metal Detection

0V/GND

Type of output

Load voltage

CH1（Common：0.8A or less ）DC5-30V
Photo coupler insulation
OFF→ON 0.2msec or less / 200ｍA Above[Table 8: External output specification]

1-14

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METARIDDER

2
Basic Operations
2.1 Running & Stopping ································
2.1.1
2.1.2

Running ································
Stopping································

2.2 Count Reset································
2.2.1

Count Reset ····································· 2-2············ 2-2············ 2-3················ 2-4······· 2-4

2.3 Saving Records (.CSV) and Handling SD Memory
Cards ························································ 2-5
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5

Types of Records and Destination Folders in
the SD Memory Card ···························
2-5
Storage Methods for Records ················ 2-5
Manual Saving of Records ···················· 2-7
Automatic (Forced) Saving of Records ···· 2-8
SD Memory Card Specifications andHandling············································ 2-9

2-1

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METARIDDER
2.1

Running & Stopping

2.1.1

Running

1. Turn ON the Main circuit breaker.
(See Table 2, No. 11 in Section 1.2.1 Names and Functions of Various Sections of theMachine.)2. Press the Power Switch on the left side of the door.
(See Table 2, No. 12 in Section 1.2.1 Names and Functions of Various Sections of theMachine.)3. The Power Switch lights up in green.
4. The Startup screen appears.
* If the light tower is included in the option, the green indicator blinks.

Important

The machine performs an initialization process for approximately 60 seconds
after the startup. Wait for the machine to complete this process and display
the main screen before loading the material.

5. When the startup process completes, the main screen will be displayed.
If the mode display under the model number is Normal Mode, the machine is ready to start
an inspection.
* If the light tower is included in the option, the green light stops blinking and becomes ON.

<4ch model>[Main screen]

2-2

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METARIDDER
Touch panel screen

Touch panel screen(Initializing)(driving)

Turn ON the circuit breaker
Press thePower
SwitchLight tower (optional)

Machine stateOFF

Green light blinks

Green light ON

STOP

Startup process(approx. 60 sec)
* Metal detection notpossible

Running

When the sensor detects a metal piece in the material and performs normal discharge operation,
it behaves as follows.
⚫ The discharge damper of relevant channel starts its discharge operation.
⚫ When a detection is made, the yellow light on the light tower turns ON. (Only for themachine with this option.)⚫ The detection count for relevant channel will be incremented.
Metal piece detection0

Detection countGreen light ON Yellow light ON

1

Green light ON

Light tower(Optional)

Home

Discharge position

Home

Discharge damper operation

2.1.2

Stopping

1. Press the Power Switch while the machine is in operation.
(See Table 2, No. 12 in Section 1.2.1 Names and Functions of Various Sections of theMachine.)2. The Power Switch illumination and the touch panel screen go OFF and the machine stops.

2-3

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METARIDDER
2.2

Count Reset

2.2.1

Count Reset

1. Press the

button on the main screen.

2. The Count Reset screen appears.
213<4ch model>[Count Reset screen]
The counts will not be reset by turning OFF the power supply.

No.

Display

Name

Function

1

Cumulative
numbers ofdischarge
operations• The count is displayed for each channel.

2

All Reset button• Resets the counts for all channels by a single operation.
* Keep the button pressed for about one second.

3

Reset button foreach channel• Resets the count for each channel.
* Keep the button pressed for about one second.

[Table 6: Count Reset screen description]

2-4

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METARIDDER
2.3

Saving Records (.CSV) and Handling SD Memory Cards

2.3.1

Types of Records and Destination Folders in the SD Memory Card
Record Name

1

2

3

Description

Destination Folder in SD Memory Card

Detection record

Records of detections made (.CSV data)• Date & time, mode (*1), code (*2), threshold,
CH No., temperature, sensor voltage (peakdetection value)[File name]
DETECTION__yyyymmddhhmmss.CSV(*3)

Destination folder: DETECTION(See Section 3.1.4 Detection & State Records)

State history

History of state monitoring (.CSV data)• Date & time, mode (*1), code (*2), threshold,
CH No., temperature, sensor voltage (averageof peak values in the white noise)[File name]
STATE__yyyymmddhhmmss.CSV (*3)

Destination folder: STATE(See Section 3.1.4 Detection & State Records)

Error history

History of errors encountered (.CSV data)• Time of error, error description, restoration time Destination folder: ARARM[File name](See Section 3.1.5 Error History.)
ARARM__yyyymmddhhmmss.CSV (*3)

[Table 7: Description and destination folders of records]* (*1): Mode: Normal mode (0) or carbon gain mode (1)* (*2): Code: Sensor output voltage (white noise), metal detection (1) or state monitoring (2)* (*3): ““ in the file name is the machine number (three characters), which has been set in the machine number setting operation on thetouch panel (see Section 3.1.2 Standard Setting).

2.3.2

Storage Methods for Records
Storage Method

1

2

3

Description

Setting

Manual saving

Save all records in Table 7 as CSV files byThis operation is allowed regardless of themanual operation of a button on the Save screen. selection of storage method made in Standard
Setting.
(See Section 3.1.2 Standard Setting.)

Automatic saving

Save all records in Table 7 as CSV files at the end This operation is enabled by selecting “Autoof the day (23:59:00).
Save” option for the storage method in theStandard Setting.
(See Section 3.1.2 Standard Setting.)

Forced saving* When the max.
number of records
was reached

Forced saving will be made only for a particular
record file shown in Table 7 when the number ofrecords in that file reaches the preset numbers
shown below.
• Detection record/State history: 6,000
records/file• Error history: 1,000 records/file

Forced saving will be made regardless of theselection of storage method made in Standard
Setting.
(See Section 3.1.2 Standard Setting.)[Table 8: Storage methods]

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2.3.3

Manual Saving of Records

1. Press the

button on the Detection Record, State History or Error History screen to

open the Save screen.
2. Description of the Save screen (manual saving operation)• After moving to the Save screen, the characters to be
used for the CSV file name will be extracted
automatically.
While the file name is being extracted, the Yes button
will be disabled. (Extraction time: approx. 5 seconds)* It is OK to move to other screens during the extraction process.

• Upon completion of character extraction, the file namewill be displayed in thefields and the Yes
button will be enabled.

[Save screen: in transition]• Pressing the

button in this condition will savethe three history files in respective destination folders in the
SD memory card as CSV files.
* Refer to Table 7: Description and destination folders of records.
* History files without any record will not be saved.

• While the save button is displayed as, dataare being written to the SD memory card. Do not perform
following operations since doing so may damage the SD
memory card or lead to a loss of data.

[Save screen: ready to save]* Turning OFF the Power Switch of the machine* Turning OFF the access switch of the SD memory card
* Removing the SD memory card

• Upon completion of the saving operation, the Menu
screen will reappear.
<<Caution>>
When the empty space on the SD memory card
becomes 1Mbyte or less, the capacity display on the top.
right corner changes to
Ensure that there is sufficient space available on the SD
memory card before saving data.
Use this display for determining the time for erasing dataor replacing the SD memory card.
Use the[Save screen: saving]

button to open the Data Save

Function Description screen and refer to instructions.

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2.3.4

Automatic (Forced) Saving of Records

1. Auto Save
When the Auto Save option was selected from the Save menu on the Standard Setting
screen, records are saved automatically at the following time (*1) during the machine
operation (*2). (See Table 10_2 in Section 3.1.2 Standard Setting.)* (*1): Automatic saving will be done daily at 23:59, the time displayed on the touch panel.
* (*2): If the time for automatic saving comes while the machine is stopped, the records will be accumulated in an internal data area of thetouch panel since the saving operation cannot be performed.

2. Forced saving
Forced saving will be performed when the number of records in a file reaches the maximum
number of records (*1) set for each file.
* (*1): See Table 8_3 in Section 2.3.2 Storage Methods for Records.

3. Saving process
When an automatic or forced saving starts, the following processes will take place
automatically.
[1] The Save screen appears.

[2] The character extraction process for the file name is performed upon moving to the Save
screen.

[3] Upon completion of the character extraction process, CSV files are saved.

[4] When all files are saved, the Menu screen reappears.

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2.3.5

SD Memory Card Specifications and Handling

1. SD memory card specifications
Specifications of the SD memory card that comes with the machine are listed below.
SanDisk: SDSDB-004G-J01
Item

Specification

Card type

SDHC

Capacity

4GB (*1)

Speed

Class4* (*1): Recommended maximum capacity of an SDHC_SD memory card: 32GB
* Format: FAT32

2. Mounting and removing the SD memory card
To mount or remove the SD memory card while the machine is turned OFF or during theoperation, turn OFF the SD memory card access switch (*1) on the back of the touch panel
and ensure that the access indicator on the left side of the switch has gone OFF before theoperation.
* (*1): Positions of the SD memory card access switch and SD memory card slot

[Rear of the touch panel][SD memory card interface (slot)]◼ Mounting the SD memory card
[1] Hold the SD memory card with its front face (labeled) facing outward, insert it into the
SD memory card interface and close the slot cover.
[2] Turn ON the machine. If the SD memory card access switch is turned OFF, turn it ON.
The SD memory card becomes available for data storage when the SD memory card
access switch is turned ON.
◼ Removing the SD memory cards[1] Turn OFF the Power Switch of the machine. If the SD memory card access switch
needs to be turned OFF during the machine operation, ensure that the SD memory
card access indicator has gone OFF before removing the data card.
[2] Open the slot cover for the SD memory card interface, push in the memory card
temporarily and pull out the SD memory card after releasing the finger.

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ER

3
Various Settings and Other Operations
3.1 Various Settings································
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.1.6

··········· 3-2

Threshold Setting ········································ 3-2
Standard Setting ········································· 3-6
Function Setting ·········································· 3-8
Detection & State Records ···························
3-12
Error History·············································· 3-15
State & Wave Form Plot ······························
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3.1

Various Settings

3.1.1 Threshold SettingThis section describes registration and selection of the Threshold, as well as switching the
Sensor Sensitivity Mode.
 Press thePress thebutton on the main screen. The Menu screen opens.
button. (*1)(*1) : Customers who wish to user function limit, you will need a password in order to move to the screen of the "threshold setting".

This brings up the Threshold Value Setting screen.

1

4

6

5

2

3

Threshold Value Setting screen

3-2Metal Detector
1
METARIDDER【Explanation of each part】
No.

DisplayName• Switches the sensitivity between the Standard andCarbon Gain modes.

Standard mode
1

Carbon gain mode

Function

Sensitivity mode
select*Option* For applications with a high level of
response to the material

The carbon gain mode is optional.
The selection is not available
unless this option has been
selected for the machine.
For others, the Standard mode issimply displayed.

Threshold select• Selects the threshold value.
Settings No.1 through No.4 are available for the user.
* The setting of Basis shall be made to therecommended value before the shipment.
(The Basis setting cannot be modified.)
The selected setting will be displayed as.
* E.g. The setting No.2 is selected.
* "PC" is applied when management system is active

3

Display of registeredthresholds• Displays threshold values registered.
* The setting value from the host PC is displayed inthe "PC" frame.

4• Registers various setting values. Pressing this button
brings up a screen to register values to be assigned
for the settings No.1 through No.4.
Threshold registration * Note that the value for the Basis cannot be modified.
• The Threshold registration screen corresponding to
the sensitivity mode selected in 1 will be brought up.
* The Carbon Gain Mode is optional.

2

5* "PC"
enabled by management system option

Management system
Information display*Option· Displayed only when "Management system" option is
active.
From the management system PC, the following
values set for transmission are displayed.

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When the "Auto Threshold Adjustment Function" option
is enabled, the "Automatic Threshold Adjustment
Setting" screen opens.
《Explanation of display / setting》
a. "Base Threshold"
The value selected on the "Threshold setting" screenb. "Base"
W / N adjustment value of each sensor unitc. "Tolerance"
Adjustment increase / decrease width (ratio to basethreshold)d. "W / N (white noise) Voltage"
Display current value of W / N of each sensor《Calculation method of "automatic threshold"》① Calculate the W / N "average value (mV)" of theeffective channel per control board (4 ch)② Calculate "ratio (%)" of "Ave. (mV)" for "base (mV)"③ Calculate the value obtained by multiplying "basethreshold (mV)" by "ratio (%)"
※ ③ The displayed value of "T Value" frame is thevalue used for detection.

Operation

6◕
Automatic thresholdadjustmenta.
c.

Start operation of "automatic threshold" ~ operation
until effective value*Option

b.
d.
①
②
③

When "Start" button is pushed, calculation of "average"and "ratio" is started.
At the same time "Auto" valid "" (computed value isvalid) and the valid threshold is changed from "basevalue"
It is changed to "calculation value".

When "Auto" valid "", if you push the "Stop" button,
the automatic threshold value calculation stops andthe calculated value immediately before stopping
becomes effective.
◕

How to invalidate "automatic calculation value"

Push the "Auto" valid "button and set it to" Auto"invalid".
The setting is changed from "calculation value" to"base value"[Table 9: Threshold Value Setting screen description]

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The threshold value registration is explained below. * Note that the screen shots used arethose for the Standard Mode.
On the Threshold Value Setting screen, ensure that the field marked byis displayed
as “Mode: Standard”.
1. Press the

button.

1

2. Press the display field for the threshold to be set (modified). (Setting No.1 - No.4)

2

3. When a software keyboard pops up, enter the desired value (*1) to be set.
(*1): The range of values allowed is displayed under the field for entering the value.

3

4
Software keyboard

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4. Press the Enter key. (The entered value will be registered.)*

Registration of Carbon Gain mode threshold will be possible when the sensitivity mode isswitched to.

*

The Carbon Gain mode is optional. The display

does not appear on thesensitivity mode select button unless the option was selected for the machine.
Carbon gain mode (*optional)
Conductive materials containing carbon may trigger the sensor without the presence of a metal piece. This isreferred to as “response to the material”.
It is possible to reduce false detections due to response to the material by reducing the sensitivity.
*

Note that the detection performance will drop.

3.1.2 Standard SettingThis section describes the Standard Setting.
 Press thePress thebutton on the main screen. This brings up the Menu screen.
button.

The Standard Setting screen will be displayed.

1
2
Pressing

3
4Standard Setting screen

top-right corner.

3-6

will open the Machine

Information window on the Standard Setting
screen.
[Displayed information]• Product number of the machine * Default
setting• Machine number * The number set by theuser.
• Model * Default setting.
• Status of optional settings• Options setting status
Close this window by clicking
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METARIDDER
No.

Display

Name

Function• Brings up the Language Setting screen. Select either Japanese or English.

1

Languageselect• Brings up the Save screen. Select how the data are saved on the SD memory card.
2

Data storage
method select* For more information on the storage method, see Section 2.3
Saving Records (.CSV) and Handling SD Memory Cards.

• Brings up the Calendar screen. Set (modify) the date and time here.
3

4

Date & time
setting

Machinenumberregistration* For more information on settings, see <<Date & time setting(modification)>> in this section.

• Brings up the Unit Number screen. Set the machine number (*1) here.
• Registered machine number will be displayed at the top-right corner (*2) of the Menu
screen.

[Table 10: Standard Setting screen description](*1): The machine number will be used as a part of file name to be used for saving data on the SD memory card. See Section 2.3.1 Types ofRecords and Destination Folders in the SD Memory Card.
(*2): See Section 1.2.2 Screen Display.

<<Date & time setting (modification)>>
1. The current time on the machine is displayed.
2. Touch the frame for date and time to be modified and enter a number. (A software keyboard
pops up.)
3. Press the
button.
4. When a prompt “Do you want to update the calendar?” appears, keep the
buttonpressed for about one second.
* Pressing the
button will cancel the operation.
5. Upon completion of the modification operation, the value entered for the date and time in 2.
will appear on the window shown in 1.

1
2
3
4

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3.1.3 Function SettingThis section describes functional setting for the machine.
 Press the
button on the main screen. The Menu screen appears.
Press thebutton. (*1)(*1) : Customers who wish to user function limit, you will need a password in order to move to the screen of the "Function setting".

1
2
3
4
Function Setting screen
No.

Display

Name

Function

1

Record setting• Brings up the Record screen for performing following settings.
1) Set the interval (minutes) for saving the State History. (*1)
See Section 3.1.4 Detection & State Records.
2) Set the interval (seconds) for updating the W/N Wave
Monitor Plot. (*2)
See Section 3.1.6 State & Wave Plot.

2Discharge frequency warning
setting• Brings up the Discharge Frequency Warning screen formaking settings.
* Further explanations are provided in page 3.7 <<Dischargefrequency setting>> and onward in this section.

3

Test piece (TP) measurement
setting* Management system optional
function

It can be used only when the management system is selected.
We accumulate the detected value at the test piece in the
management system PC.
* For details, see page 3.9 of this section

4

Operation mode select• Brings up the Operation Mode Change screen (*3) for
switching the Standard and Maintenance modes.
* A password is required for selecting the Maintenance mode.

[Table 11: Function Setting screen description](*1): Setting range 1 to 99 (minutes)(*2): Setting range 5 to 3600 (seconds)(*3): The button will be enabled by pressing it for two seconds.

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Metal Detector

METARIDDERER<<Discharge frequency setting>>* If “I/F (interface) Effective” is selected, the Discharge Frequency Warning screen (*2) will be
displayed and an external I/F signal will be sent whenever there are preset number (*1) ofdischarge operations within a preset time frame.
* The external I/F signal (*3) is available only on 2ch and 4ch models.
(*1): For a machine with multiple channels, the sum of discharge operations on different channels is the number of discharge operations.
(*2): See <<Discharge frequency warning screen>> on page 3-8.
(*3): See Section 1.2.4 External Output.

<<How to set the discharge frequency>>
1. Pressing the
button will bring up the Discharge Frequency Warning screen. * E.g. If “I/F
Effective” is selected.

2. Select the I/F setting. Pressing

3. Press thewill bring up a prompt “Warning to Effective?”button to complete the setting.

4. The discharge frequency setting can be done by pressing the

button.

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5. Press the display fields for “Times” and “minute” will bring up a software keyboard, on which a
new number can be entered.

[Software keyboard]

6. After entering a value to be set, press the
To cancel the setting, press the
button.

button to complete the registration.

<<Discharge frequency warning screen>>* If discharge operations exceeding the number set for the discharge frequency were detected,
the Discharge Frequency Warning screen will be displayed showing a warning message andthe time of detection.
* An external I/F signal (*1) will be sent.
(*1): See Section 1.2.4 External Output.

Pressing the

button will revert the screen to the previous one.

Discharge frequency warning screen<<When a discharge frequency warning was happend >>* The Discharge Frequency Warning is not an error. The metal detection operation continues
normally even if the warning is issued and the above message is displayed on the screen.

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METARIDDER《About TP measurement mode》
It can be used if the management system function is enabled.
In this mode, the detection value of the test piece is recorded on the management system side and managed.
1.

Press to display the sub screen for selecting the material of the test piece.
Please select the material of the test piece to be measured. After that, measurement becomes possible.
※ Please use the test piece specified by us.

1

2. Select the material and measure with the test piece dropped on each CH of the sensor.
After measuring with all CH press．

2

Four latest detection data and their average value are displayed
respectively

3. You will return to "Function setting screen".
The measured detection value is sent to the management system PC.
※ The detected value is also recorded in the "detection history" of the touch panel with the following code.
Code 3: TP mode Fe detection
Code 4: TP mode SUS detection
Code 5: TP mode W / N detection (* 1)* 1: For "TP mode", "W / N value" is recorded in "detection history".

* For details on using accumulated data, please refer to "Management System 10. Chart".

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3.1.4 Detection & State Records
This section explains the records of detection and state for the machine.
 Press the

button on the main screen. This brings up the Menu screen.

Press thebutton.

The Detection History screen will appear.

5

7
1

3

2
8

4

6

Detection history screen
No.

Display

Name

Function• Displays the past seven detection (state) records.
Newer records are shown on top.

1

Detection history* Detection history screen* The history forms (items) for the detection and state are thesame.
* The “Code” in the table changes to “1” for the detection historyand “2” for the state history.

Data save• Brings up the Data Save screen.
* For more information on the data save function, see Section 2.3
Saving Records (.CSV) and Handling SD Memory Cards.
* Data to be saved are explained in <<CSV output data>> onpage 3-10 and onward.

3

Code explanation• Brings up a screen explaining the codes used in the Detectionand State History screens.
* For more information on the codes, see Table 7 “Description
and destination folders of records”.

4

Page scroll• Scrolls the pages (with seven records) of accumulated history
data.

Search method• Press the T_Set button to load the current date and time.
• Pressing respective fields in the Date & Time Display Setting
will bring up a software keyboard. Modify the year, month, day,hour or minute as desired.
• Press the Search button to jump to a detection record nearest to
the set date and time.

2[Date & Time Display Setting]5

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6

Renewal button• After scrolling pages and/or performing a search, use this button
to update the screen with the latest history data.

7

SD memory cardstate

• Displays the state of SD memory card.
If the SD memory card is not working properly (*1), “SD_Error” will
be displayed.
• Detection history: Records of the detection voltage on therelevant CH and other data at the time of detecting metal pieces• State history: White noise voltage and other data recorded
every ten minutes* Switch oneach screen

8

Switch to the Stata History
screen.

Switch history[On the Detection History screen]

Switch to the Detection History
screen.

[On the State History screen][Table 12: Detection & State History screen description](*1): When the SD memory card is full or the card slot is empty.

<<CSV output data>>
The Detection (State) History and Error History are saved in the csv format. The csv format data can be loaded on a
spreadsheet or database software. The explanation given in this section uses an example of loading the data onto a
spreadsheet of Microsoft Excel.
*

Microsoft Excel is a registered trademark of Microsoft Corporation.

<<Destination folders in the SD memory card and file names>><<File name construction>>[Type of history][Unit No.][Timestamp for the file]

Detection: DETECTION
State: STATE
Error: ARARM

3 characters* Registered on the touch panel* For identification of the machine

Year/month/day/hour/minute/second

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METARIDDER<Detection & state history data on the CSV file>

1

2

3

No.

4

5

6

7

8

Data Item

9

10

11

12

13

14

Description

1RECORD_NUM

Total number of history data in the file2

DEV_COMENT (date & time)

The date and time (year ... minute) of occurrence * Actual date andtime record contains the “second” field as well.

3-8

Year, Month, Day, Hour,
Minute, Second (date & time)

The date and time (year ... second) of occurrence.

9

Mode

0: Standard mode
1: Carbon Gain mode * Optional

10

Code

1: Measured peak voltage at the time of metal detection
2: Normal white noise measured with a set interval
3: Detected value of test piece ”Fe” (TP mode)
4: Detection value of test piece “SUS” (TP mode)
5: Detection value of ”W / N“ (TP mode)

11

T_Val (mv)

Threshold voltage

12

CH_No

1 - 4: Relevant channel number

13

S_Temp (C)

Sensor temperature of the relevant channel

W/N_Val (mV)

• Detection history: Peak voltage at the time of detection• State history: The value obtained by averaging (* 3) the
maximum value (* 2) of the white noise voltage
within a fixed period (* 1)14[Table 13: Detection & State History CSV output data](* 1): Depends on PLC scan time 1000 scan period / 4ch sampling time is 250 scans / ch (PLC scan: average 2 msec)(* 2): Peak hold value of PLC analog input section is adopted(* 3): Average number of times 20 ※ Default factory setting value

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METARIDDER

3.1.5 Error History
This section explains the Error History of the machine.
 Press the

button on the main screen. This brings up the Menu screen.

Press thebutton. The Error History screen will be displayed.

8

7

1

6
3

2
4
5
Error History screen

No.

Display

Name

Function

1Error history
display• Displays the past three errors.
Newer records appears on top.
* Errors are displayed in red. Once restored, the display color
changes to blue.

2

Data save• Brings up the Data Save screen.
* For more information on the data save function, see Section 2.3.
* Output data are explained on the page 3-10 and onward.

3

Scroll buttons• Scrolls the accumulated error data by one record at a time.

4

Buzzer stop

• Stops beeping of the buzzer notifying an error.

• When an error was detected, the icon
5

Error outbreak(reset)will bedisplayed and the error state display is maintained.
• After restoring the error, press the
button to resetthe error. The button changes to

.

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6[Date & Time Display Setting]7

Error description• Displays a description of the relevant error.
* For the types of errors, see Section 5.1 Errors.

Search• Press the T_Set button to load the current date and time.
• Pressing respective fields in the Date & Time Display Setting willbring up a software keyboard. Modify the year, month, day, houror minute as desired.
• Press the Search button to jump to a detection record nearest to
the set date and time.

• Displays the state of SD memory card.
SD memory card
If the SD memory card is not working properly (*1), “SD_Error” will
state
be displayed.

8[Table 14: Error history screen description](*1): When the SD memory card is full or the card slot is empty.

<Error history data in the CSV file>

1

2
No.

Data Item3

4
Description

1

NUMBER_OF_ALARM_HISTORY Total number of records in the file2

COMMENTType of the error encountered

3

OCCURRED (date & time)

Date & time of the error (year ... minute) * Actual date and time
record contains the “second” field as well.

4

RESTORED (date & time)

Date & time of restoration (year ... minute) * Actual date and time
record contains the “second” field as well.

[Table 15: Error History CSV output data]

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3.1.6 State & Wave Form PlotThis section explains settings for various features of the machine.
 Press the

button on the main screen. This brings up the Menu screen.

Press thebutton.

The State & Wave Plot screen will be displayed.

2

1<4ch model>
State & Wave Plot screen

No.

Display

Name

Function1• Pressing a button for desired channel will bring up the W/N Wave Form
W/N (white noise)
Monitoring screen for monitoring the W/N (white noise) on the relevant
wave formchannel.
monitoring* See <<W/N wave form monitoring screen>> on the page 3-15 in thissection.

2

High speed plot

• When you press the button, the display shifts to the screen that draws thesensor detection voltage waveform of the corresponding channel.
* See <<High Speed Plot screen>> on the page 3-17 in this section.

[Table 16: State & Wave Plot screen description].

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Metal Detector

METARIDDER<<W/N wave form monitoring screen>>
3
5

6

4

2

1

<The screenshot is for a CH4 model>
W/N (white noise) wave form monitoring screen
No.

Display1

Name

Function

Wave form
display area

• Plots average values of peak white noise with the monitoring frequency(*1)• The number of plots displayed is 199.

Waveform
display• Waveform display "valid" - "invalid" button
Press the CH button, it becomes valid when it is lit, and it becomes
invalid when it is off.
valid
invalid2
W/N
indication

Channelselect3

W / N voltage: a value obtained by averaging (* 4) the maximum value (*3) of white noise for a fixed time (* 2)• For a machine with multiple channels, use the(next) and(previous) buttons to switch the screen.

4

Waveform
continuous
drawing5

Drawingrange
switching

6

Drawing· Whenbutton is pressed, keyboard (sub) screen opens andcycle
drawing cycle (sec) is arbitrary You can set to.
Configuration· Press the

button to display the W / N voltage value incontinuous (* 5).

• Press any display maximum voltage button to switch the range.

[Table 17: W/N wave form monitoring screen description](* 1): Monitoring period: Time (seconds) set in "History setting" of Section 3.1.3 "Function setting"(* 2): Depends on PLC scan time 1000 scan period / 4ch sampling time 250 scans / ch (PLC scan: average 2 msec)(* 3): Peak hold value of PLC analog input section is adopted(* 4): Average number of times 20 ※ Standard factory setting value(* 5): Drawing update scan: average 50 msec

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METARIDDER<<About "Detected Waveform Drawing" Screen>>
1. Press the

button on the "State / Waveform Drawing" screen to switch to the"Detected Waveform Drawing" screen.
5
3
2

4

1
<The screenshot is for a CH4 model>"Waveform drawing" screen

No.

Display

Name

1

Wave form plotarea

2

Change chart
range
Range value
display(Selected range)

Function· Plot threshold voltage with purple line.
· Plot voltage waveform at metal detection with each CH color (* 1).
· The number of plotting points is 150• Whenbutton is pressed, the following "Graph scale setting" subscreen opens.
You can select and press the voltage range
button on the setting frame on the left.

3

Thresholddisplay• The set threshold voltage value (mV) is displayed.

4

Metal detection
value display· Metal detection value (mV) is displayed.
(A value exceeding the threshold value)

5

Channel select• For a machine with multiple channels, use the(next) and(previous) buttons to switch the screen.

[Table 18: High Speed Plot screen description](* 1): From small CH to red → yellow → green → blue for each screen (see Table 18-4)

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4Maintenance
4.1 Routine Inspection ······································· 4-2

4.2 Routine Cleaning ········································· 4-4

4.2.1
4.2.2

Routine Cleaning ································
Points of Cleaning ································

4.3 Replacing Parts ································
4.3.1
4.3.2

········ 4-4······· 4-5··········· 4-6

Replacing Batteries for the Control Devices ······ 4-6
Replacing the Cooling Fan ····························
4-8

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4.1

Routine Inspection

In order to use the machine in the optimum condition, it is recommended to perform routine
inspections before loading and changing the material.
Read this section for determining the points and types of inspection.
⚫

Checking the operation of discharge damper
Move the discharge damper and ensure that it works properly.
* The illustrations shown below are those of a 1ch model. Check two dampers for the 2ch
model and four dampers for the 4ch model.
If the damper does not work properly, contact SAIKA.

⚫

Checking operation with a test piece (*1)
To check the detection sensitivity, confirm that a test piece will be discharged to the discharge
chute properly.
If the test piece cannot be discharged properly, contact SAIKA.
(*1): Test pieces are optional.

Important

In order to prevent the test piece being lost in the line or mixed with thematerial, provide a protection to the discharge port.

<<Notes in opening the Maintenance Door and checking the damper operation>>With the Maintenance Door open (*1), it is possible to check the damper operation at the time ofdetecting a metal piece.
(*1): If an optional Maintenance Door safety switch is enabled, follow the procedure described in the page 4-3 in thissection.

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If an optional Maintenance Door safety switch is enabled
1. By opening the Maintenance Door during the operation, the Maintenance Door OPEN
screen pops up and the buzzer beeps. In this condition, the power supply to the damper isshut down.
Press thebutton to stop the buzzer.

1

2. Pressing the

button will bring up a message to confirm the release of thedamper lock.
3. Pressing the
button will restore the power supply to the damper and the damper
function will be unlocked.
4. While the display “Damper Unlocked” is present, the damper functions even if theMaintenance Door is open.

2

4

3
*

The locking function will start working again once the Maintenance Door is closed.

*

If the display is switched to other screens using the

button before unlocking, press

theon the main screen to return to the Maintenance Door OPEN
confirmation screen.
⚫

Checking the cooling fan operation
Ensure that air flows out from the cooling fan.
If the cooling fan needs to be replaced, see Section 4.3.2 Replacing the Cooling Fan.
The cooling fan turns ON if the ambient temperature rises above 30C and turns OFF if
the temperature drops to 15C.
It may not be running depending on the ambient temperature.

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4.2

Routine Cleaning

4.2.1

Routine Cleaning

Pay attention to the followings in cleaning the machine.
WARNING

Before cleaning, ensure that the Power Switch and the Main Circuit Breaker
are turned OFF.

CAUTION Do not wash with water.

CAUTION

The machine is assembled with precision. Do not remove parts that need not
be removed.

Items to be prepared:
Prepare following items before cleaning.
⚫ Vacuum cleaner⚫ Dry rag
⚫ Air blowing device
In order to prevent foreign matter and dusts on the machine fromCAUTION contaminating the production line at the time of cleaning, take necessary
measures such as providing a protection.

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4.2.2

Points of Cleaning

Clean the area on which the material may be adhered (the area in the yellow dotted line) with avacuum cleaner or an air blowing device.
For other cleaning methods, see Table 19: Points and methods of cleaning on the page 4-6.
* The illustrations shown below are those of the 1ch model.
Important

Be careful not to let materials infiltrate the machine while cleaning.

Cooling fan (2)Sensor unit
Touch panel (1)Lead pipe

Maintenance door (3)Inside the frame (5)Discharge damper (4)Around the discharge chute (6)Air filter (8)Discharge chute (outside) (8)※ The numbers in parentheses refer to Table 19

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No.

Name

Cleaning Method

1

Touch panel

Wipe it with a rag to remove finger prints and stains.

2

Cooling fan

Clean it with a vacuum cleaner and an air blowing device.

3

Maintenance door

Clean the door and areas around it with a vacuum cleaner and a rag. * Check the
packing as well.

4

Discharge damper

Clean the inside and outside of the damper with a vacuum cleaner and a rag.

5

Inside the frame

Clean the inside of the frame (ceiling and walls) with a vacuum cleaner and a rag.

6

Around the discharge chute(inside)Clean the discharge chute and areas around it with a vacuum cleaner and a rag.

7

Air filter

Clean the air filter inside the louver with a vacuum cleaner.

8

Discharge chute (outside)

Clean it with a vacuum cleaner and a rag.

[Table 19: Points and methods of cleaning]

4.3

Replacing Parts

4.3.1

Replacing Batteries for the Control Devices

If the power of batteries inside the touch panel and/or PLC drops, a warning (*1) will be issued.
Replace them accordingly.
(*1): See the list of errors in Section 5.1.1 Errors and Notification.

[Replacing the touch panel battery]
1. Save the detection, state and error histories on the SD memory card. (There is a possibility
that unsaved data will be lost.)
2. Turn OFF the Power Switch.
3. Open the control panel door and turn OFF the main circuit breaker.
4. Open the battery cover on the back of the touch panel.
5. Disconnect the battery at the connector and connect a new battery (*1).
6. Replace the battery cover and turn ON the main circuit breaker.
7. Close the control panel door and turn ON the Power Switch.
8. Check the date and time displayed and, if necessary, set the correct date and time (*2).
(*1): See <<Table 25: Troubleshooting low battery errors>> in Section 5.2.1 Troubleshooting.
(*2): See <<Date & time setting (modification)>> in Section 3.1.2 Standard Setting.

*

The touch panel battery is used to hold history data on the machine before saving them to the SD memory card.
Continued use of the battery with low power for about a month may cause the history data on the machine
becoming inconsistent. It is recommended to replace the battery as soon as possible.

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METARIDDER<<Touch panel battery replacement procedure>>
Rear of the touch panel

Replace the battery.
Open the battery cover.
Open the control panel door.
[Replacing the PLC battery]
1. Turn OFF the Power Switch.
2. Open the control panel door and turn OFF the main circuit breaker.
3. Open the battery cover on the face of the PLC unit.
4. Disconnect the battery at the connector and connect a new battery (*1).
5. Replace the battery cover and turn ON the main circuit breaker.
6. Close the control panel door.
7. Turn ON the Power Switch.
8. Check the date and time displayed and, if necessary, set the correct date and time (*2).
(*1): See <<Table 25: Troubleshooting low battery errors>> in Section 5.2.1 Troubleshooting.
(*2): See <<Date & time setting (modification)>> in Section 3.1.2 Standard Setting.

*

The PLC battery is used to hold the clock data (shared with the touch panel).
Continued use of the battery with low power for about a month may cause the clock data becoming inconsistent. It
is recommended to replace the battery as soon as possible.

<<PLC battery replacement procedure>>
Face of the PLC unit

Remove the battery cover.
(Pull it out.)
Replace the battery.
Open the control panel.

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4.3.2

Replacing the Cooling Fan

Replace the cooling fan whenever an abnormal noise is heard, it stops working or its service life
has expired.
WARNING

Before the replacement, always ensure that the Power Switch and the main
circuit breaker are turned OFF.

The service life of the cooling fan is about four years and six months (approx. 40,000
hours) assuming a 24 hour operation (*1).
(*1): The service life in the ambient temperature of 25C. * The life will be reduced to half (approx. 20,000
hours) at 35C.

1.
2.
3.
4.
5.
6.
7.
8.
9.

Remove the fan guard. (Loosen the four thumb screws.) * Be careful not to drop the guard.
Remove the power cable for the fan.
Remove the cooling fan mounting screws (at four locations).
Remove the connector on the cooling fan side and the grounding wire (one screw).
Put a new fan and secure it with four screws. (Pay attention to the air flow direction.)
Plug in the connector and secure the grounding wire with a screw.
Secure the fan guard. (Fasten the four thumb screws.)
Turn ON the main circuit breaker and Power Switch.
Ensure that the fan turns and the air is discharged.
The cooling fan turns ON if the ambient temperature rises above 30C and turns OFF if
the temperature drops to 15C.
It may not be running depending on the ambient temperature.

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METARIDDER<<Cooling fan replacement procedure>>

Important

Fan guard

Fan mounting screws

Connector

Grounding wire fastening screw

Install the cooling fan so that the air flows out of the machine.
OutsideThe stamp on the cooling fan. Pay attention to the AIR FLOW direction.

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5Errors and Troubleshooting
5.1 Errors ································
5.1.1
5.1.2
5.1.3

························

Errors and Notification ·································· 5-2“Warning Display” screen ······························
5-2
List of Error items ········································ 5-3

5.2 Troubleshooting ································
5.2.1
5.2.2

5-2

··········· 5-4

Troubleshooting ·········································· 5-4
Troubleshooting Other Problems ···················· 5-7

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5.1

Errors

5.1.1 Errors and Notification
This section explains types of errors and error notification on the screen.
If the machine in normal condition detects an error, the buzzer beeps and the Error History screen(*1) appears. At the same time, the light tower lights up in red.
(*1): See Section 3.1.5 Error History.
(*2): The light tower is optional.

Important

The error screen will be displayed automatically only if an error is detected on
the machine working normally (without any error). To display the error screen
in other instances, press the Error History button on the Menu screen.

For further information on the external I/F signal for errors, see Section 1.2.4 External
Output.

5.1.2 “Warning Display” screen
Item on which warning screen is displayed.
Item

Contents
When the number of discharges exceeding the setting condition of the discharge frequency

Discharge Frequency
Warning Screen

is detected Display the announcement screen※* Refer to Section 3.1.3 <<Discharge frequency setting>>・<<How to set the dischargefrequency>>・<<Discharge frequency warning screen>>.

An announcement screen is displayed when any sensor temperature reaches 65 ° C or
more
The time when the warning occurrence was
detected is displayed.
Sensor Temperature
Warning Screen
Press "A" to move to the screen
before occurrence.

※ Sensor temperature abnormality occurs at 70 ℃ or higher.

[Table 20: Warning item list]

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5.1.3 List of Error items
Following information will be displayed in the error display fields on the Error History screen. By
selecting a particular error, more detailed information will appear under the history data item.
No.

Error Name

Description (in the description display area)

1

CH1-4 Metal detection error

2Each CH metal detection error

3

CH1-4 DP_Overload

4(Each CH) temperature error

5(Each CH) discharge error

6(Each CH) return error

7

CH1-4 PLC battery low

8

TP battery low

9

SD card full10

SD card access error

11

CH1-4 Metal detection T_value error[Table 21: List of Errors]

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 Procedures for stopping the buzzer and resetting errors
Once an error is reported, the error condition is maintained until it is reset. Upon restoring theerror, reset the error condition as follows.
1. Press the Buzzer Stop button to stop the buzzer.
2. Address the error in accordance with instructions in Section 5.2 Troubleshooting.
3. Once the error is restored, the display changes from red to blue. Then press the Error Resetbutton to reset the error condition.

Important

The error condition cannot be reset unless the machine has been restored.
Address the error and press the Error Reset button after the machine isrestored.

On the Error History screen, the Error History can be viewed and saved on the SD
memory card in the CSV format.

5.2

Troubleshooting
Important

This section explains how to address errors. If the troubleshooting method
described in this section does not work, contact SAIKA.

5.2.1 TroubleshootingThis section explains how to address errors listed in Table 21.
For troubleshooting other types of problems, see Section 5.2.2 Troubleshooting Other Problems.
1. Errors relevant to the metal detection board (sensor unit)* Error item No.1 to No.2
Assumed Cause

See Table 21: List of Errors in Section 5.1.3 Errors and Notification.

Troubleshooting

Too many metal pieces are being fed
continuously.

Stop loading the material temporarily and press the Error Reset button.
If the error item is cleared, the sensor is working properly.

The sensor signal is erroneous.

Stop loading the material temporarily.
Check the sensor voltage on the Main screen.
If the sensor signal level is unusually high, contact SAIKA.

The sensor is in an abnormal state.

The sensor needs to be replaced. Contact SAIKA.

[Table 22: Troubleshooting errors relevant to the metal detection board (sensor unit)]

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2. DP Overload* Error item No.3

See Table 21: List of Errors in Section 5.1.3 Errors and Notification.

Assumed Cause

Troubleshooting

The path of the material is clogged with thematerial.

Check the path of the material to see if it is clogged with the material.

Abnormal power supply voltage

Check the voltage if it satisfies the specification.

Faulty solenoid

Contact SAIKA.

* If no particular cause is foundThe circuit protector has tripped.
Push the switch (*1) on the circuit protector to reset it.
Upon resetting the CP, perform a discharge operation test using a test piece andensure that it is discharged properly.

[Table 23: Troubleshooting the DP (damper) overload error](*1): See No.3 in Table 2: Names of parts, Section 1-2 Names and Function of Parts.

3. Sensor Temperature Error* Error item No.4

See Table 21: List of Errors in Section 5.1.3 Errors and Notification.

Assumed Cause

Troubleshooting

Improper ambient temperature

Take actions to make the ambient temperature to fall within the specified range (5 to45C).

The cooling fan has stopped.

Check the cooling fan to see if it is running.

The temperature of the loaded material
is out of range.

Take actions to make the material temperature to fall within the specified range (5 to70C, *standard model).

The temperature sensor is not working
properly.

If the ambient temperature and the material temperature are both normal, thetemperature sensor may be faulty. Contact SAIKA.

The sensor unit is defective.

Contact SAIKA.

[Table 24: Troubleshooting the sensor temperature error]
4. Damper Movement Error* Error item No.5 and No.6

See Table 21: List of Errors in Section 5.1.3 Errors and Notification.

Assumed Cause

Troubleshooting

Clogging of the material inside thedischarge mechanism

Remove the sensor unit and check the discharge damper and the area around it in the
discharge mechanism. If the material has clogged, remove it.

Improper power supply voltage

Check the voltage to see if it satisfies the specification.

• Failure of the solenoid
Contact SAIKA.
• Failure of the damper position sensor* If no particular cause is foundPerform a discharge operation test using a test piece and ensure that the test piece isdischarged properly.

[Table 25: Troubleshooting the damper movement error]

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5. PLC Battery Low/TP Battery Low Errors* Error item No.7 and No.8

See Table 21: List of Errors in Section 5.1.3 Errors and Notification.

Assumed Cause

Troubleshooting
The battery needs to be replaced. Replace the battery with a new one.
[Battery models and recommended replacement period]
PLC: FX3U-32BL (lithium battery) 5 years (ambient temperature 25C) (*1)
TP: GT11-50BAT (manganese dioxide lithium primary battery) 5 years (ambient
temperature 25C) (*1)

The battery life has expired.

[Table 26: Troubleshooting low battery errors](*1): The service life depends on the ambient temperature. With the temperature of 50C, the life is about 2.5 years.

6. SD Card Access Error/SD Card Full Error* Error item No.9 and No.10

See Table 21: List of Errors in Section 5.1.3 Errors and Notification.

Assumed Cause

Troubleshooting

The SD memory card is not inserted.
The SD memory card has little freespace.

Check the presence of the SD memory card in the slot.
If the SD card is present, check the memory space from the Save screen on the touch
panel. (*1)
If the lack of free space (*2) was confirmed, replace the SD memory card (*3) or freesome memory space.

[Table 27: Troubleshooting the SD memory card errors](*1): See Paragraph 2 Description of the Save screen in Section 2.3.3 Manual Saving of Records.
(*2): The SD Card Full error is issued when the free space drops to about 1 Mb.
(*3): See Section 2.3.5 SD Memory Card Specifications and Handling.

7. T_Value Error* Error item No.11

See Table 21: List of Errors in Section 5.1.3 Errors and Notification.

Assumed Cause

Troubleshooting• The threshold voltage is not supplied Ensure that the PLC unit is working properly with the LED indicator (*1) on the unit.
properly to the control board from the POWER: Green light ON
PLC.
RUN: Green light ON• The feedback of threshold voltage on → If the light is OFF, switch the PLC RUN-STOP switch to RUN (*2).
the control board is not input properly BATT,ERROR: Both OFF
to the PLC.
If normal operation cannot be made after confirming these conditions, reset the power of* Defective PLC
the machine.
* Broken signal line or bad contact
If this still does not work, contact SAIKA.

[Table 28: Troubleshooting the threshold error](*1),(*2): For the indicators and switch on the PLC unit, refer to followings.

[PLC unit front view]

5-6[(*1) PLC LED indicators][(*2) PLC RUN-STOP switch]

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5.2.2 Troubleshooting Other Problems
This section explains other types of problems and how to address them.
 List of other problems
A) The power cannot be turned ON.
B) The discharge damper does not operate even if a metal piece has been detected.
C) Metal pieces cannot be detected.
D) The discharge damper is activated frequently or there is too much material discharged
improperly.
 TroubleshootingA) The power cannot be turned ON even if the main circuit breaker and the Power Switch
are both switched ON
Assumed Cause

Troubleshooting

The power cable is unplugged.

Plug in the power cable.

The machine is used with apower supply outside thespecification.

Check the power supply specifications for the machine.
Use the machine with the power supply corresponding to the voltage (AC***V) inscribed on
the label.

[Table 29: Troubleshooting the problem of turning ON the power]B) The discharge damper does not operate even if a metal piece has been detected
Assumed Cause
The solenoid is defective.

Troubleshooting
Contact SAIKA.

[Table 30: Troubleshooting the problem of failure to perform the discharge operation]C) Metal pieces cannot be detected
Assumed Cause

Troubleshooting

The sensor sensitivity has
dropped.

If the sensor sensitivity drops due to a drop in the ambient temperature (*1), the detectionlevel becomes low necessitating an adjustment of the sensor signal sensitivity. Contact
SAIKA.

The size of metal pieces issmaller than the detection
capability of the machine.

Let a test piece drop through and check if it can be discharged. (Repeat the test a few
times.)
If the type of metal piece desired to be detected (the target) cannot be detected, it ispossible the target is smaller than the detection capability of the machine. Ensure that thetarget matches the detection capability of the machine.
* If larger metal pieces cannot be detected, contact SAIKA.

The sensor has failed.

If above actions do not solve the problem, the sensor may have failed.
Contact SAIKA.

[Table 31: Troubleshooting the problem of failure to detect metal pieces](*1): For more information on the operating conditions, see Section 6.1 Specifications.

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METARIDDERD) The discharge damper is activated frequently or there is too much material discharged
improperly
Assumed Cause

Troubleshooting

Metal pieces have attachedinside the sensor unit.

Clean the inside (the path of the material) of the sensor unit. (*1)

Too many metal pieces are
mixed in the material.

If there are too many metal pieces mixed in the material, it is possible that most of the material
are discharged as NG material because the discharge damper always turns to the discharge
chute due to frequent detection response of the sensor. If that was the case, take following
actions.
If there are too many metal pieces mixed in the material, performing a
pre-processing of reducing metal pieces with a magnet will help increasing theeffectiveness of the machine.
• Reduce the amount of material fed to the machine
In using the machine with the specified sensitivity, reduce the amount of material fed to themachine to reduce the number of detection responses. The optimum amount to be loaded
depends on the level of metal pieces in the material. Try reducing the amount of the material
little by little to find the optimum amount.

Material
Metal piece

Reduce the amount of material being fed to reduce the number of metal pieces passing
through the sensor.
• Set a higher threshold (the sensitivity will drop)
Make the threshold higher than the current setting. (*2)

CAUTION

The threshold is not set
properly.

5-8

Setting a threshold higher than the recommended value may lead to a
detection performance lower than those described in the specifications.

The machine allows the customer to set four arbitrary thresholds. (*2)
Before the shipment, the recommended threshold for the machine is set as BASIS.
Although a selection among five different thresholds, BASIS plus four user settings, can bemade for daily operation, note that using user settings (No.1 - No.4) significantly lower than
the recommended value (*3) may lead to frequent operations of the discharge damper,
resulting in improper discharge of the material.

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The metal detection response If frequent detection responses are observed without the presence of metal pieces, it is possible
is caused by a constituent of that the machine is responding to some component contained in the material. If this was the case,the material.
take following actions.
• Reduce the amount of material fed to the machine
In using the machine with the specified sensitivity, reduce the amount of material fed to themachine to reduce the number of detection responses to the component contained in the material.
The optimum amount to be fed depends on the component of the material. Try reducing theamount of the material little by little to find the optimum amount.

Material

Adjust the amount of material so that the material passes closer to the center of the sensor.
* Because the sensitivity is the lowest at the center of the sensor.
• Set a higher threshold (the sensitivity will drop)
Make the threshold higher than the current setting. (*2)

CAUTION

The sensor has failed.

Setting a threshold higher than the recommended value may lead to a
detection performance lower than those described in the specifications.

If above actions do not solve the problem, contact SAIKA.

[Table 32: Troubleshooting the problem of frequent discharge damper operation](*1): See Section 4.2.2 Points of Cleaning.
(*2): See Section 3.1.1 Threshold Setting.
(*3): Values close to the sensor voltage (white noise).

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6Specifications
This chapter describes the specifications for the machine.

6.1 Specifications ································
6.2 Dimensions ·············································· 6-2·················

6-3

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6.1

Specifications
MHD1-15

MHD1-20

MHD1-24

MHD1-30

MHD1-40

MHD2-15

MHD2-20

MHD2-24

MHD2-30

MHD2-40

MHD4-15

MHD4-20

MHD4-24

MHD4-30

MHD4-40Fes0.16equivalent
(*1)

s0.2

s0.3

s0.4

s0.5

SUS

s0.24equivalent
(*2)

s0.3

s0.3

s0.5

s0.6

Sensor caliber

15 mm

20 mm

24 mm

30mm

42mm

Model

Detection
capacity

Discharge port
diameterOuter diameter: 50 mm

Metal pieceelimination
mechanism

Solenoid-driven damper

Operatingconditions

5C to 45C * Without dew formation

Power supply

100 VAC (50/60 Hz)

Material
temperature

5C to 70C * Without dew formation

60.5mm* The voltage may be modified by request[Table 33: Machine specifications](*1): Detection capacity is valid for the ambient temperature of 15C to 45C.
(*2): The detection sensitivity is determined by using a test piece of the size t0.15  0.25 (mm) and converting the result to a sphere having thesame volume.

* The design and specifications of the machine may be modified without notice for the purpose of
improving the product.

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6.2

Dimensions
 1chLight tower(option)Power SW

Touch panel

Control panel
door

Control panel

Maintenance
door

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 2ch

Fan guard
Light tower (option)

Touch panel

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Light tower (option)

Touch panel

Fan guard

Transformer
cover(option)

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7
Warranty and Customer Support
7.1 Warranty Information ··································· 7-2

7.2 Inquiries & Consultations on the Product ········· 7-2

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7.1

Warranty Information

SAIKA warrants that the product will be repaired with no cost to the customer is it fails due tomanufacturing defects within the period of one year from the date of acceptance (or, if there is no
explicit acceptance date, the delivery date).
For repairs after the expiration of the warranty period, consult the place of purchase or SAIKA.
Repairs shall be made on the customer’s request for a fee provided that the product can be
repaired and the proper function is deemed to be restored by the repair.
The warranty will be void and the product will not be repaired free of charge if any of the followings
apply.
• Failures caused by erroneous wiring and/or erroneous operation.
•

A repair and/or a modification has been done by a third party.

•

The product used under improper conditions.

•

Failures caused by an accident or act of God.

•

Damage caused by the customer’s willful negligence such as dropping the product.

•

When a detection accuracy, specifications, etc. exceeding those agreed upon by the parties
prior to placing the order is requested.

•

If any of the repair parts is unavailable due to discontinuation of production.

•

Excessive damages beyond repair.

Note that the warranty is valid only for the original purchaser and does not apply to the producttransferred after the delivery.
SAIKA shall not be held liable for any damage caused by a defect in the product resulting from
special circumstances, which cannot be foreseen at the time of manufacture, as well as any loss
in the customer’s business.

7.2

Inquiries & Consultations on the Product

Saika Technological Institute Foundation
2-1-20 Kuroda, Wakayama 640-8341
TEL 073-474-0860
FAX 073-474-0862
URL: http://www.saika.or.jp

7-2

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A
Addendum：special
specifications Such as

A-1

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External output（A001）
This text is equivalent to <<External output> on page 1-11.
This section describes ‘Special specification(A001)’.
Use ‘an Output-I/F terminal’ to output signals.
■Output signals

Output-I/F BOX

1 2 3 4 5 6 7 8 9 10

Special specification(A001)(Side View of PLN-Frame)

Terminal

Signal

1-2

CH1 Metal Detection

1-3

CH2 Metal Detection

1-4

CH3 Metal Detection

1-5

CH4 Metal Detection

6

Description
Output period: 250 msec
* The output of the signal of each CH,starts as soon as the discharge
damper starts its discharge operation.

Not used

7-8

Metal Detection (TOTAL)

7-9

Sensor Error Detection

7-10

Discharge Frequency
Warning (*1)

Output period: 250 msec
* The output of the signal starts as soon as the discharge damper starts its
discharge operation.
Note) If multiple number of discharge dampers operate simultaneously,
multiple signals will be output in order with a one second interval.
Output period: during the normal operation* The signal will be turned OFF if an error occurs.
Output period: 250msec * Only for 2 and 4ch models(*1) See <<Discharge frequency setting>> on page 3-7.

A001-1

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METARIDDER[Circuit diagram][Output terminal specifications (1a relay)]
Type of output

Relay contact

Max. load current

2 A per contact

Min. switching load

2 mA, 5 VDC (for reference only)

Initial contact resistanceLoad voltage
Output circuit insulation
Response timeA001-2

100 mΩ or less
250 VAC or less, 30 VDC or less
Mechanical insulation
OFF → ON
ON → OFFApprox. 10 msec
Approx. 10 msec

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Safety Switch Option（A003）◼ It describes the Safety Switch Option.
1．Function
As a safety measure function,
While the maintenance door is open, automatically stops the operation of discharge dampers.

2 ．Names and Functions
On the lower side of each maintenance door safety switch is equipped with.
Discharge Damper
Frame
Maintenance Door
(open)

Safety Switch(4ch Model)【Fig. A003-1 ：Safety switch installation position 】

3 ．Basic action
While the maintenance door is open, stops the operation of discharge dampers.
At the same time, "Warning" screen is displayed, the buzzer sounds,
and the light tower will turn on yellow light .
When a door is closed, warning is released, and all operation about this warning is cleared.
Maintenance door is open
To lock the damper operation

Maintenance door is close
OPEN"Warning" screen

All cleared

BuzzerYellow light on(Option）(previous state)
CLOSE

A003-1

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4 .Method of operation
When the ' the maintenance door Opened' warning has occurred, It is possible
the following operations.

◼

Buzzer stops◼

Back from ‘ warning ‘screen to the control screen.

◼

To unlock discharge damper operation (in lock)

Please see at the Section 4.1 Routine Inspection／■If an optional Maintenance Door safety switch is enabled
the details of how to operate.

A003-2

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Bridge Prevention Unit （Option）
S001e

Description for Bridge Prevention Unit

1. Overview
A Option-Unit for MC/MHD that prevents and eliminates clogging due to material
bridges in the Upper Hopper

2. Specifications
The Motor is driven to swing the Stirring Plate through the Link.
（The swing width changes with the sensor aperture.）

3. Equipment Outline
3.1 Name and Function

Motor

Stirring Plate
Speed Controller
Link〈Rocking Motion〉

3.2 Unit set up
For use, Set up the Unit between the Protector andthe Upper Hopper.

Protector

Bridge Prevent Unit

Upper Hopper

Fig: Unit Formation (MC-1ch type)S001-1

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4. Basic action
The rocking of the stirring plate starts at the same time with the power ON.
It is always moving while driving.
■Recommended set value
Motor rotation speed ： 300rpm (As Shipped)※Refer to Operation Manuals of Motor (7.Appendix) ,for how to change the set value.

5. MaintenanceCheck and clean it regularly.
・For basic method, check the following.
User’s Manual / MC series ： ３．Maintenance
User’s Manual / MHD series ： ４．Maintenance

DO NOT TOUCH.

・About this Unit,
Check …Check visually whether the stirring plate is moving.
Clean …（When the Power is off）
With a vacuum cleaner or an air blow,
remove materials adhering to the stirring plate andother parts (in the vicinity of the plate).

Do not insert your finger or a stick

Cautionon the moving part while driving.
It may cause injury.

6. Dimensions*See the Page3-5.

7. Appendix
・Speed Control Motor and Controller Package
Operation Manuals /S001-2

Quick start guide

US2Series (Oriental Motor)

Metal Detector

METARIDDER▼1ch*1:Holes for setting protector unit
*2: Dimensions in () are for Sensor ID=φ30,42 type of MHD.

When it use Anti-Wear Processing,the Stirring plate is subjected to the treatment.

S001-3

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METARIDDER▼2ch<Unit type for φ15,20 of Sensor >Note1*1:Holes for setting protector unit

<Unit type for φ30,40 of Sensor >Note1

When it use Anti-Wear Processings,
the Stirring plate is subjected to the treatment.

Note1: The Unit type to be attached differs depending on the sensor
diameter.

S001-4

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METARIDDER▼4ch*1:Holes for setting protector unit

When it use Anti-Wear Processing,the Stirring plate is subjected to the treatment.

*2: Dimensions in () are for Sensor ID=φ40 type.

S001-5

Metal Detector

METARIDDERSManagement system
This document explains the management system.

1
2
3
4
5
6
7
8
9

Overview of management system ........................ 1
Starting/exiting the system ................................... 2
State display screen............................................. 3
Material master maintenance ............................... 4
Changing materials .............................................. 6
Detection record .................................................. 7
Error record .......................................................... 9
Clearing detection count .................................... 10
Machine unit information .................................... 11

10 Chart (graph) ..................................................... 12
11 System specifications ........................................ 19
12 Folder structure .................................................. 20

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Notice:The screens used in this document are under development, and therefore they may be partially different fromones used in the actual products.
Note that the contents herein are subject to change without notice for some purposes such as upgrading.

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1
1.1

Overview of management system
Overview

The management system is used for managing and operating METARIDDERMHD/MEDseriesof
products via network.
The management system allows you to check the operating status of METARIDDER,
manage/configure materials (detection threshold), view the detection records, cleardetection
count (set to zero), and display various charts (graphs).

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2
2.1

Starting/exiting the system
Starting the system

1. Double click the [管理システム][Management system] icon on the desktop.

2. The system launches.

2.2

Exiting the system

1. Click the [終了] [Exit] button on the state display screen of the management system.

2. The dialog box appears prompting you to confirm the operation. Click the [OK] button.

<<Note>>Clicking X mark at the upper-right corner of the window does notexit the system.

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3
3.1

State display screen
State display

In this screen the state of connected METARIDDER is displayed. The displayed information is
updated periodically.

『Remarks』
The displays for sensor voltage and sensor temperature arerenewed each time the information is
updated on theMETARIDDERunit.
検出能力-Detection capacity
The “detection capacity” is an estimated value for the size of detectable metal particles which is
calculated from the sensor caliber and detection threshold.
This value may be different from one actually detected because it is only an estimated value.This
value should therefore be considered as a rough indicator for setting the threshold.

3

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4

Material master maintenance

4.1

Material master maintenanceTo maintainthe material master:
1. Click the [材料マスター][Material master] button on the state display screen.

2. The material master screen appears.

① ②

⚫

③

④

⑤

⑥

Material number ① The management number for materials. Any number from 1 to 32767
can be specified.
Indicates whether this material can be selected or not in the material change⚫

Enabled ②⚫
⚫
⚫

screen. (Only “Enabled” material can be selected.)
Material name ③ The name of material
Mode ④
Sensor mode (The carbon gain mode function can be selected, if available.)
Display order⑤ The display order for showing the material list⚫

In the list the materials are displayed in ascending order of the numeric values.
Threshold x ⑥ The detectionthreshold for the material
Set this value for each machine.

4.2

Addinga material

To add a material, enter the number and name for the material to be added and then enter thethreshold for each machine.
1. Click the [追加] [Add] button.
2. Enter the material number, material name, and sensor mode, and then click the [OK] button.

3. The material is added to the list. At this point the threshold value for each machine is set to
1000.

4

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4. Double click the cell at theintersection point of the threshold column and the material row to make it
editable andenter a threshold value.After that, press the [Enter] key to exit edit mode.

5. Click the [編集確定] [Confirm edit] button to confirm the edited value.Return to the state
display screen.

4.3

Changing material information

To change the material information:
1. Click the [材料マスター] [Material master] on the state display screen to go to the material
master maintenance screen.
2. Edit the item(s) you want to change in the list.The material number cannot be changed.

⚫
⚫

Toggle between “Enabled” and “Disabled” by clicking the checkbox.
To enter data in the material name column, first double-click the cell to make it available fordata entry.
⚫ To select a mode, first click the cell to display the combo box.
⚫ To enter data in the display order or threshold columns, first double-click the corresponding
cell to make it available for data entry.
3. To confirm an entry in the cell, press the [Enter] key.
4. After you have entered all the necessary information, click the [編集確定] [Confirm edit] button.
The editsare confirmed andyou return to the state display screen.
5. To cancel the change, click the [編集破棄] [Cancel edit] button to return to the state display
screen.
Note
When a cell is in entry mode, you cannot click the [編集確定] [Confirm edit] button. First exit entry
mode of the cell.
Clicking the [編集確定] [Confirm edit] button confirms edits for all the materials.

5

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5

Changing materials

5.1

Changing materials

To change materials for the METARIDDER:
1. In the state display screen, click the [材料切り替え] [Change material] button to display thematerial change screen.

2. Enter the information to be used “after the change.”

⚫
⚫
⚫
⚫

Select the checkbox for the machine whose material will be changed, and enter the
information to be used “after the change.”Enter the material number or select the material name.
Enter the lot number (numeric value)to be applied “after the change.”The current lot number isused by default.
When using the automatic threshold adjustmentfunction, select the 「自動」
「Auto」checkbox(depending on the machine options).
⚫ Enter a threshold value.When the material number or name was changed, thecorrespondingthreshold value is retrieved from the material master.This value can be retainedor changed.
3. After entering the target machine and “after-the-change” value(s), click the [切り替え][Change] button.
A material change request is sent to the METARIDDER and the material is changed. After awhile the information on the state display screen will be updated.

6

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6

Detection record

6.1

Detection record

To view the detection recordthat meets the conditions you set:
1. Click the [検出記録] [Detection record] button on the state display screen to display thedetection record screen.

2. Enter the display conditions.

①
②
③
④

⚫

Specify the display date/time① range. You can viewdata for up to 400 days. These fieldsare⚫

required (must not be blank).
You can specify a machine range②.The default value is either the lowest machine number (1)or the highest machine number.
⚫ You can specify the material③.Enter the material number or select the material name.
⚫ You can enter a lot number range④.
⚫ Clicking the [リセット] [Reset] button resets the conditions to the initial values.
3. Click the [表示] [Display] button,to display the list of the detection records that meet theconditions you have just set.

<<Note>>It may take some time before the data is displayed depending on the total amount of data and/or
conditions you set.

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6.2

File output

To save the displayed result as a tab-delimited text file:
1. Display a detection result list as described in the previous section.
2. Click the [ファイル出力] [File output] button.

3. The 「名前を付けて保存」「Save as」dialogue box appears. Specify the file/folder name towhich you save the result, and click the 「保存」「Save」button.

8

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7

Error record

7.1

Error record

To view the error record(s) that meets the conditions you set:
1. Click the [エラー記録] [Error record] button on the state display screen to display the error
record screen.

2. Enter the display conditions.

①
②
③

⚫

Specify the display date/time① range.

⚫

required (must not be blank).
You can specify a machine range②.The default value is either the lowest machine number (1)You can view data for up to 400 days.These fieldsare

or the highest machine number.
⚫ You can specify an error number range③.
⚫ Clicking the [リセット] [Reset] button resets the conditions to the initial values.
3. Click the [表示] [Display] button,to display the list of the detection records that meet theconditions you have just set.

<<Note>>It may take some time before the data is displayed depending on the total amount of data and/or
conditions you set.
『Remarks』
Error cannot be cleared in the management system.To clear the error, use the METARIDDERunit.

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8Clearing detection count

8.1

Clearing detection countTo clear(set to 0 (zero)) the detection count:
1. Click the [検出数] [Detection count] button in the state display screen to display the detection
countclear screen.

2. Select the machine unit and CH whose detection count you want to clear.

⚫

In the machine body field, select a machine unit whose detection count you want to clear.If
you select 「すべて」「All」, the detection count for all the machine units will be cleared.

⚫

When selecting a machine unit, you can select a CH (or all the CHs).If you select the all CHs,
the detection count for all the CHs will be cleared.
If you specify no machine unit, you cannot select CH.
Clicking the [リセット] [Reset] button resets the conditions to the initial value.

⚫

3. Click the [クリア] [Clear] button.The detection count clear request is sent to the
METARIDDER unit and the detection count is cleared. After a while the detection countbecomes zero (0) on the state display screen.

10Metal Detector

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9

Machine unit information

9.1

Machine unit information

To view the information for the METARIDDER unit:
1. Click the [機体情報] [Machine information] button on the state display screen to display themachine information screen.

2. In this screen you can view the machine information.

9.2

Clock setting

To set the clock on the METARIDDER unit:
1. Click the [機体情報] [Machine information] button on the state display screen to display themachine information screen.
2. Select a machine unit whose clock you want to set.
3. Click the [時計設定] [Clock setting] button.The time setting information is sent to the
METARRINDER unit and the clock will be updated.

11

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10
10.1

Chart (graph)
Chart menu

To display various chart screens, use the chart menu.
1. Click the [チャート] [Chart] button on the state display screen.

2. The chart menu appears.

12Metal Detector

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10.2

Detection state chart

This chart shows the metal particle detection state per a unit time.
1. Click the [検出状況チャート] [Detection state chart] button from the chart menu to display thedetection state chart screen.
2. Enter the display conditions.
①
②
③
④

⚫

Start date/time① The detection count is displayed for each interval after this date/time.

⚫

Interval②⚫
⚫

interval.
Machine body③ Select a machine unit (or all machine units) whose data you want to view.
CH④
Select a CH (or CHs) whose data you want to view.If you select all theSpecify the time interval. The number of detections will be counted in thismachine units, CH is not selectable.
⚫ Clicking the [リセット] [Reset] button resets the display conditions to the default values.
3. Click the [表示] [Display] button to display the chart.

<<Note>>It may take a long time before the chart is displayed depending on the total amount of data and/or
conditions you set.

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10.3

Sensor state chart

This chart presents a time-series sensor state data.
1. Click the [検出状況チャート] [Detection state chart] button from the chart menu to display thedetection state chart screen.
2. Enter the display conditions.
①②⚫

Date/time ①⚫

for up to 70 days.
Machine body ② Specify the machine unit whose data you want to view.This field isSpecify the date/time range for which data is displayed.You can display datarequired (must not be blank).
⚫ CH
Specify the CH whose data you want to view.This field is required (must not
be blank).
⚫ Clicking the [リセット] [Reset] button resets the display conditions to the default values.
3. Click the [表示] [Display] button, to display the chart.

⚫

14

Hovering the mouse cursor over a detection voltage marker (green filled circle) displays thedetailed information.

Metal Detector

METARIDDER<<Note>>It may take some time before the chart is displayed depending on the total amount of data and/or
conditions you set.
When a large amount of data should be displayed, the scroll bars for X and Y axes are notdisplayed.

15

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10.4

Test record chart

To display the test result completed on the METARIDDERunit:(For details on the tests, refer to the operating manual for the METARIDDERunit)
1. Click the [テスト記録チャート] [Test record chart] button from the chart menu to display thetest record chart screen.
2. Enter the display conditions.
①②⚫

Time period ① Specify a time period for which the record is displayed.

⚫

Machine body② Specify the machine unit whose data you want to view.This field isrequired(must not be blank).
⚫ CH
Specify the CH whose data you want to view.This field isrequired (must not
be blank).
⚫ Clicking the [リセット] [Reset] button resets the display conditions to the default values.
3. Click the [表示] [Display] button, to display the chart.

⚫

Hovering the mouse cursor over each bar in the chart displays the detailed information.

<<Note>>It may take some time before the chart is displayed depending on the total amount of data and/or
conditions you set.

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10.5

Detection voltage chart

This chart shows the frequency for each detection voltage within the specified period.
To display the test result completed on the METARIDDERunit:(For details on the test operation, refer to the operating manual for the METARIDDERunit.)
1. Click the [検出電圧チャート] [Detection voltage chart] button from the chart menu to display
the detection voltage chart screen.
2. Enter the display conditions.
①
②
③
④

⚫

Date/time ①⚫
⚫

display data for up to 400 days.
Start voltage ② Specify the start value (lower limit) for the voltage to be displayed.
Interval ③
Specify a voltage interval.The detected frequencies are displayed in this⚫

interval, with the Start voltage set as the lower limit.
Machine body④ Specify the machine unit whose data you want to view.This field is required

Specify the date/time range for which the data will be displayed.You can(must not be blank).
Specify the CH whose data you want to view.This field is required (must not
be blank).

⚫

CH

⚫

Hovering the mouse cursor over each bar in the chart displays the detailed information.

17

Metal Detector

METARIDDER<<Note>>It may take some time before the chart is displayed depending on the total amount of data and/or
conditions you set.

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11

System specifications

11.1

System specifications

The following table shows the system specifications.
Operating system (OS)Microsoft Windows 10 Pro 64-bit

Database system

Microsoft SQL Server 2017 Express

Database max. size

10GB (due to the limitation of Express edition)

Display resolution

1366×768

11.2
⚫

⚫

Cautions/limitations

Once the database size exceeds 10 GB, the system stops.
(Significantly depending on the total number of CHs and data storage frequency, we assume
that data for more than 10 years can be recorded when normally operating a 4CH machine.)
If you save a large volume of data, it may take some time to complete an operation such as
displaying a new screen.
Even if this is the case, the process continues, although the system seems to be hung up(frozen up). Wait for a while.
The start time of the processing appears in the status display area at the bottom-left corner ofthe screen.
Also the current date/time display at the bottom-right corner of the screen is not updated
during the processing.
Note that once the display processing starts it cannot be stopped.

⚫

⚫

When continuously operating for a long time, such as more than one week, the entire system
may become unstable.
Restart your PC periodically.
The management system directly or indirectly depends on Windows OS, database system
and its related software, and various component package software.
The specifications, malfunction, or others of these software items may cause the malfunctionof the management system functions.
Please understand these scenarios beforehand.

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12

Folder structureThis section provides the folder structure related to the management system.
C:¥Meta2018¥Database
¥Log
¥2018

Meta.mdf,Meta_log.ldf database file is placed here.

¥03¥04¥MetaManage¥MataTools

20

The log for March in 2018 is stored here.
The log for April in 2018is stored here (and so on).

The program and related files for the management system are placed
here.
Variousmaintenance tools are placed here.