PT5E-0521

High Sensitivity Toxic Gas Monitor

FP-300AGZS
Operating ManualPreface
Thank you for choosing our high sensitivity toxic gas monitor FP-300AGZS.
Please read and understand this operating manual thoroughly before use to operate the gas monitor
properly.
Note that the contents of this manual are subject to change without notice for product improvement. Also, any
copying or reproduction of this manual, in whole or in part, without permission is prohibited.
This manual uses following symbols to describe the degree of danger or damage caused by improper
handlings without adherence to instructions.

Definition of DANGER, WARNING, CAUTION, and NOTEDANGER

This message indicates that improper handling may cause serious damage on
life, health or assets.

WARNING

This message indicates that improper handling may cause serious damage on
health or assets.

CAUTION

This message indicates that improper handling may cause minor damage on
health or assets.

NOTE

This message indicates advice on handling.

-1-

FP-300AGZS

<Contents>
1
1-1.
1-2.

Outline of the Product .............................................................................................. 4
Overview ................................................................................................................. 4
Precautions ............................................................................................................. 5

2
Product Functions ................................................................................................... 8
2-1.
List of accessories ................................................................................................... 8
2-2.
Block diagram .......................................................................................................... 9
2-3.
Outline drawing ....................................................................................................... 102-4.
Part names .............................................................................................................. 11
2-4-1. Front panel .............................................................................................................. 11
2-4-2. Rear panel ............................................................................................................... 12
2-4-3. Operation panel ....................................................................................................... 13
3
How to Use .............................................................................................................. 14
3-1.
Handling precautions for installation ........................................................................ 14
3-2.
Tubing ..................................................................................................................... 15
3-3.
Wiring ...................................................................................................................... 16
3-3-1. Precautions ............................................................................................................. 16
3-3-2. Terminal diagram ..................................................................................................... 16
3-4.
Gas detection tape cassette .................................................................................... 17
3-4-1. Handling gas detection tape cassette ...................................................................... 17
3-4-2. Managing gas detection tape cassette .................................................................... 19
3-4-3. Returning gas detection tape cassette .................................................................... 19
4
How to Operate ....................................................................................................... 20
4-1.
Preparation .............................................................................................................. 20
4-1-1. Check items ............................................................................................................. 20
4-1-2. Power input ............................................................................................................. 20
4-1-3. Power-on ................................................................................................................. 21
4-1-4. Attaching gas detection tape cassette ..................................................................... 21
4-1-5. Flow rate.................................................................................................................. 21
4-2.
Operation................................................................................................................. 22
4-3.
Simple check of alarm setpoint ................................................................................ 23
5
Functions ................................................................................................................. 24
5-1.
LCD display ............................................................................................................. 24
5-1-1. Display format ......................................................................................................... 24
5-1-2. Gas concentration display ....................................................................................... 25
5-2.
Alarm function ......................................................................................................... 26
5-2-1. Gas alarm ................................................................................................................ 26
5-2-2. Alarm activation timing chart ................................................................................... 27
5-3.
External output ........................................................................................................ 28
5-3-1. External output contact ............................................................................................ 28
5-3-2. External signal output (4 - 20 mA) ........................................................................... 30
5-3-3. External output operation ........................................................................................ 30
6
Maintenance ............................................................................................................ 31
6-1.
Daily maintenance ................................................................................................... 31
6-2.
Regular maintenance .............................................................................................. 31
6-3.
How to replace gas detection tape cassette ............................................................ 31
6-4.
Maintenance mode .................................................................................................. 32
6-4-1. Alarm test ................................................................................................................ 34
6-4-2. LCD contrast adjustment ......................................................................................... 35
6-5.
List of recommended regular replacement parts ..................................................... 36

FP-300AGZS

-2-

7
7-1.
7-2.

Measures for Abnormalities ..................................................................................... 37
Self-diagnostic function ........................................................................................... 37
Causes and remedies for failure .............................................................................. 38

8

How to Stop Operation ............................................................................................ 39

9

Disposal of Products................................................................................................ 40

10

Product Specifications ............................................................................................. 41

11

Detection Principle .................................................................................................. 43-3-

FP-300AGZS

1 Outline of the Product1-1. Overview

1

Outline of the Product1-1. Overview
Special material gases which are used in large quantities in semiconductor manufacturing process, arehighly toxic. Because leakage of these gases poses a danger to human body, Security Regulation for
General High-Pressure Gas requires facilities using these gases to install a gas detection and alarmsystem.
A gas detector used for continuous monitoring of slight gas leakage from a gas cylinder room or production
line must be highly reliable and stable for a long time.
This gas monitor features highly reliable gas detection of low concentration gases and also long-term
stability by resetting (zero level) after a gas detection.
Main functions and features of the gas monitor are as follows: The gas monitor adopts a two-step alarm system consisting of precautionary alarm and main alarm.
 A cassette type gas detection tape can provide easier replacement.
 The specified performance of the gas monitor can be maintained by just replacing a cassette type gas
detection tape every other month.
 If the gas to be detected drawn by a pump makes contact with a gas detection tape, the tape will give acolor reaction according to the gas concentration. The rate of change in produced color (opticalreflectance change) before and after a gas contact is detected and converted into gas concentration.
 The gas monitor is little affected by interference gases like alcohol and hydrogen gas under its detection
principle.

FP-300AGZS-4-

1 Outline of the Product1-2. Precautions

1-2. Precautions
WARNING
Abnormal heat, smoke, sound or odor
In case any abnormality occurs during use, stop using the gas monitor immediately and turn the
power off. Continuing to use the gas monitor in such situations may cause electric shock or fire.

CAUTION
Contact with edges of metal, etc.
Be very careful when you need to touch the edges of steel sheets, plastic parts, etc. for relocation orother reasons.

WARNING
Shocks by dropping, etc.
Do not drop or give a shock by hitting, etc. to the gas monitor.
It may disturb the proper operation and gas detection of the gas monitor as it consists of precisionelectronic parts.

WARNING
Use in locations with high temperature/humidity or dusty places Do not store or use the gas monitor in locations with high temperature/humidity or dusty places.
It may cause the gas monitor to malfunction, or electric shock or fire. Use the gas monitor within
the operating temperatures and humidities.
 When the gas monitor is exposed to large temperature difference, such as when moved from awarm place to a cold place, condensation may be formed on the surface or inside the gas
monitor. Using the gas monitor in such condition cannot provide correct detection. It may also
result in failure. When the gas monitor is relocated, leave it in a new installation site for a few
hours to adjust it to the ambient temperature.

CAUTION
Use in unstable location
Do not install the gas monitor under unstable conditions, such as on an inclined surface, in a narrowor vibrating area. It may cause the gas monitor to fall or topple during use, posing a risk of injury or
damage to the gas monitor.

WARNING
Connection of grounding wire
Connect the grounding wire to the grounding terminal to avoid a risk of electric shock.
Ignoring this may cause electric shock.

-5-

FP-300AGZS

1 Outline of the Product1-2. Precautions

WARNING
Power supply to be used
Make sure to use the gas monitor on the specified power voltage. Ignoring this may damage the gas
monitor or cause electric shock or fire.

WARNING
Overloaded electrical outlet
Avoid connecting many power plugs to the same electrical outlet which can cause overloading. Not
only does it pose a risk of fire, but it also affect other devices when the circuit breaker trips due tooverloading. Also, it makes the gas monitor vulnerable to noise from power source, thus causing
malfunction.

WARNING
Intrusion of foreign substances
Prevent metallic or flammable materials from entering inside of the gas monitor when replacing thecassette, etc. Using the gas monitor with such material entered inside may cause malfunction,
electric shock or fire.

WARNING
Leaving object on gas monitor
For the tabletop type, do not place containers filled with water, such as vases and flower pots, or
small metallic objects like pins and clips on the gas monitor. Using the gas monitor with such object
entered inside may cause failure, electric shock or fire.

CAUTIONUse of gas detection tape cassette Store a gas detection tape cassette in the refrigerator without taking it out of the package. If it istaken out of the package to store or left attached to the main unit of the gas monitor, the tape
may become discolored and unable to maintain the specified performance. After opening the
package, use the gas detection tape cassette as soon as possible.
 Indication accuracy cannot be guaranteed for those with expired storage period. Also, for safety
reasons, do not use such tape cassette.
 Since the special reagent is applied on the tape, do not touch it with bare hands. It does notaffect human body, but may cause deterioration of the detection performance or cut of the tape.
 The tape replacement cycle is 62 days under no-gas conditions. The replacement cycle isshortened by detection of gas.
 The gas detection tape cassette is designed specifically for our gas monitors. Do not attempt toinstall it to other devices. It may result in failure.
 When opening the package, slight discoloration may be seen depending on the tape type,storage condition, etc., however, it does not affect the gas sensitivity.

FP-300AGZS-6-

1 Outline of the Product1-2. Precautions

CAUTIONUse after verifying that the reading on the flow rate indicator corresponds to the specified flow rate
(flow rate lamp lights in green)
If it does not correspond to the specified flow rate, gas detection cannot be performed properly.
Check if the flow rate is unstable or dropped.

WARNING
Condensation within tube
Condensation formed inside the tube causes clogging or gas adsorption, which may disturb
accurate gas detection. Thus, condensation must be avoided. In addition to the installation
environment, carefully monitor the temperature/humidity of the sampling point to prevent
condensation inside the tube. In particular, when detecting a gas which is dissolved into water andcorrodes contacted materials, such as a strong acid gas, the gas is undetectable and furthermore
may corrode internal parts. Please observe the operating restrictions.

-7-

FP-300AGZS

2 Product Functions

2-1. List of accessories

2

Product Functions
2-1. List of accessories
The gas monitor is accompanied by the following accessories. Check these items when the gas monitor isdelivered.
 Gas detection tape cassette:
 Dust filter: Operating manual:

FP-300AGZS

1
1
1

-8-

2 Product Functions

2-2. Block diagram

2-2. Block diagram
Tubing diagram

Flow
sensorPyrolyzer
heaterFilter(Balston)

Sensor head

Electric block diagram

Sensor headLight emitter
Light receiverPreamplifier

Status signal inputs
Flow sensor
Deck sensor
Fan
OthersAmplifierA/D conversion

I/O

CPU

LCD display

D/A conversion

4 - 20 mA output

Control signal outputs

Motor, heater, etc.

Alarm contact output

WARNING, ALARM,
Trouble-9-FP-300AGZS

2 Product Functions

2-3. Outline drawing

Tape cassette housing

Requireddimension for taperemoval2-3. Outline drawing
Tape cassette

Requireddimensionfor tape
removalRequired dimension
for maintenanceDisplay

FP-300AGZS

Rubber foot (four)

Operation area

- 10 -

2 Product Functions

2-4. Part names

2-4. Part names
2-4-1. Front panel
(2)

(1)

(1) Operation panel:(2) Cassette tray:

Provide various operations and display. See "2-4-3. Operation panel".
Hold a gas detection tape cassette.

- 11 -

FP-300AGZS

2 Product Functions

2-4. Part names

2-4-2. Rear panel
(6)

(5)

(8)

(7)

(3)

(4)
(3)
(4)
(5)
(6)
(7)
(8)

POWER switch:
Terminal plate for external connection:GAS IN half-union:
GAS OUT half-union:
Fuse:
Fan

FP-300AGZS

Turn ON/OFF the power.
See “3-3-2. Terminal diagram”.
Connect an O.D Φ 6 mm Teflon tube.
Connect an O.D Φ 6 mm Teflon tube.
3A x 2 pcs- 12 -

2 Product Functions

2-4. Part names

2-4-3. Operation panel
(10)

(11)

(15)

(14)

(17)

(18)

(12)

(9)

(13)

(20)
(9) POWER/TROUBLE lamp:(10) WARNING lamp:(Precautionary alarm)(11) ALARM lamp:(Main alarm)(12) FLOW lamp:(13) Buzzer:(14) MODE switch:(15)  (UP) switch:(16)  (DOWN) switch:(17) BZ STOP switch:(18) LAMP RESET switch:(19) EJECT switch:(20) LCD:

(16)

(19)

Green lamp
Lights up continuously in normal condition (gas detection state) andblink when a trouble occurs.
Yellow lamp
Goes out in normal condition.
Blinks or lights up when alarm is triggered.
Red lamp
Goes out in normal condition.
Blinks or lights up when alarm is triggered.
Green/orange/red lamp
Normal flow rate: Lights in green continuously
Unstable flow rate: Lights in orange continuously.
Flow rate dropped: Lights in red continuously.
Main alarm: Continuous sound (continuous beep)
Precautionary alarm: Intermittent sound (beep, beep)
Switch operation: Single short sound (blip)
When pressed and held over three seconds in gas detection state, themaintenance mode which provides alarm test, etc. is entered.
 Increases the flow rate when pressed in gas detection state.
(When the flow rate auto-adjustment is OFF)
 When pressed in maintenance state, the mode selection becomes
available.
 Decreases the flow rate when pressed in gas detection state.
(When the flow rate auto-adjustment is OFF)
 When pressed in maintenance state, the mode selection becomes
available.
When pressed after alarm is triggered, buzzer sound stops and thealarm lamps ((10), (11)) change from blinking to lighting up
continuously.
 When pressed after pressing the buzzer stop switch ((17)) during
an alarm activation, the alarm lamps ((10), (11)) go out with the gas
concentration settles below the alarm setpoint and the external
output contact is deactivated.
 When pressed while more than one trouble occurs on the gas
monitor, details of the troubles can be checked in turn. (See“7-1. self-diagnostic function”.)
 When pressed in gas detection state, an alarm setpoint will be
displayed on LCD ((20)).
Pressing and holding this switch for about two seconds opens thecassette tray on the front side of the main unit for removing/attaching agas detection tape cassette.
Displays various comments including detection gas concentration.

- 13 -

FP-300AGZS

3 How to Use

3-1. Handling precautions for installation

3

How to Use
3-1. Handling precautions for installation(1) Hold the handle on the top to lift or carry the gas monitor.

CAUTION
Do not hold the cassette tray to lift or carry the gas monitor. It may damage the cassette tray andcause the gas monitor to fall, resulting in breakage or injury.

(2) For the gas monitor, select an installation site easily accessible and viewable during an alarm activationand comfortable for gas detection tape cassette replacement, flow adjustment and maintenance work.

WARNING
Do not place containers filled with water, such as vases and flower pots, or small metallic objects
like pins and clips on the gas monitor. Using the gas monitor with such object entered inside may
cause failure, electric shock or fire.

(3) Do not install the gas monitor in the following locations. Ignoring this may result in failure or accident.
 Places exposed to direct sunlight Dusty or dump places Places exposed to direct wind Places with frequent vibrations
 On unstable or inclined surfaces Outdoors or places exposed to water

WARNING Do not store or use the gas monitor in locations with high temperature/humidity or dusty places.
It may cause the gas monitor to malfunction, or electric shock or fire.
 When the gas monitor is exposed to large temperature difference, such as when moved from acold place to a warm place, condensation may be formed on the surface or inside of the gas
monitor. Using the gas monitor in such condition cannot provide correct detection. It may also
result in failure.
When the gas monitor is relocated, leave it in a new installation site for a few hours to adjust it to
the ambient temperature.

FP-300AGZS- 14 -

3 How to Use

3-2. Tubing

CAUTION
Do not install the gas monitor under unstable conditions, such as on an inclined surface, in a narrowor vibrating area. It may cause the gas monitor to fall or topple during use, posing a risk of injury or
damage to the gas monitor.

(4) The gas monitor consists of precision electronic parts. Install it on a level surface in a safe place, withcare not to drop or hit it against something.

WARNING
Do not drop or give a shock by hitting, etc. to the gas monitor. It may disturb the proper operationand gas detection of the gas monitor as it consists of precision electronic parts.

(5) Avoid noise from a large-capacity transformer, motor or driving power source, or devices generatinghigh voltage.
(6) To prevent malfunction caused by radio disturbance, a transceiver or mobile phone should be used atleast 1 m away from the gas monitor.

3-2. Tubing
(1)
(2)
(3)
(4)

For both In and OUT, the tube must be no longer than 20 m.
Use an O.D Φ 6 mm Teflon tube.
The tube from GAS OUT must be connected to the specified exhaust duct.
Attach the provided filter to GAS IN before connecting a tube.

CAUTION For adsorptive gases, the appropriate tube length varies depending on the degree of adsorption.
 For more information about adsorptive property of gases and tube length, please contact RIKEN
KEIKI.

- 15 -

FP-300AGZS

3 How to Use

3-3. Wiring3-3. Wiring
3-3-1. Precautions(1) Use a shielded cable (CVVS cable, etc.) for signal cables like current output to minimize the influenceof noise.
(2) Turn the power switch OFF ( side) before wiring. If wiring is performed with the power switch turned
on, the gas monitor may be damaged by short circuit, etc.

3-3-2. Terminal diagram
Layout of external connection terminal plate

Current output(4-20 mA)
[4]

Main alarm(ALARM)[2](Not used)

Precautionary alarm(WARNING)[1]

Fault alarm(TROUBLE)[3]Power input(100 - 240 VAC)
[5]

[1]
[2]
[3]
[4]

Precautionary alarm (WARNING) output ............ No-voltage contact ("c" contact)
Main alarm (ALARM) output ............................... No-voltage contact ("c" contact)
Fault alarm (TROUBLE) ..................................... No-voltage contact ("c" contact)
Current output (4 - 20 mA) .................................. Pay attention to the polarity.
Concentrations between 0 and F.S. are output to the linear.
0:
4 mA
F.S.：
20 mA
Trouble:0.5 mA
Initial clear:
2.5 mA
Maintenance: 2.5 mA
Gas concentrations over F.S. can be output up to 22 mA.
[5] Power input ......................................................... 100 - 240 VAC
Each alarm contact is rated at 125 VAC 0.5 A. Depending on the load to be connected, a protective part likespark killer may be required to maintain the performance.

FP-300AGZS- 16 -

3 How to Use

3-4. Gas detection tape cassette

3-4. Gas detection tape cassette
The gas detection tape cassette (FC type) is designed specifically for the gas monitor.
Understand the following information thoroughly before use.

3-4-1. Handling gas detection tape cassette
CAUTION
Do not touch the detection tape.

Since the special reagent is applied on the detection tape, do not touch it with bare hands. It does not harm
human body, but may cause deterioration of the detection performance or cut of the tape.

WARNING
Do not use a gas detection tape cassette that has passed its expiration date.

The gas detection tape cassette should be used within two months. Indication accuracy of the detection
tape after two months from opening the package cannot be guaranteed. For safety reasons, do not use
such detection tape.

NOTE
Specify the start date of using a gas detection tape cassette.
Make sure to record the start date of use since it helps to remember the timing of detection tapereplacement.
Record here
Record the start date of use.

CAUTION
Use the gas detection tape cassette of the specified model.
The detection tape varies depending on the detectable gas. Check for the specified model of the detection
tape before use.
Gas detection cannot be performed with a detection tape of inappropriate model.
The appropriate model of detection tape is displayed on LCD while the cassette tray is opened.

CAUTION
Check the display on the gas monitor every day to replace the gas detection tape cassette without
fail.

- 17 -

FP-300AGZS

3 How to Use

3-4. Gas detection tape cassette The replacement cycle of gas detection tape cassette is 62 days under no-gas conditions. The
replacement cycle is shortened by detection of gas because tape feed is executed.
Also, removing/attaching the gas detection tape cassette unnecessarily or turning ON/OFF the power
consumes the tape, resulting in shortened replacement cycle. If possible, use a new gas detection tapecassette and use it up.
 Note that if the gas detection tape cassette is repeatedly removed and attached unnecessarily, theindication of remaining amount becomes inaccurate.
 When the indication of remaining days for the detection tape becomes two days, the message"CHANGE TAPE" is displayed on LCD, and the POWER/TROUBLE lamp blinks to prompt the operator
to replace the detection tape. When the detection tape is used up completely, "TAPE END" is displayed.
Since gas detection cannot be performed, replace the detection tape promptly.
 See "6-3 How to replace gas detection tape cassette" when attaching the gas detection tape cassette to
the main unit.

CAUTION
Do not insert the gas detection tape cassette into devices other than the specified gas monitor.

The gas detection tape cassette (FC type) is designed specifically for the gas monitor.
Do not attach it to other devices. Also, do not rewind and use the gas detection tape cassette.

CAUTION
Do not apply excessive force to the detection tape.

When you turn the tape winding part with your hand to make the tape tight or for other reasons, be careful
not to apply excessive force or stretch the tape too much. The detection tape may be cut. In principle, thetape winding part should not be turned.

CAUTION
When opening the package, slight discoloration may be seen depending on the detection tape type,storage condition, etc., however, it does not affect the gas sensitivity.

FP-300AGZS- 18 -

3 How to Use

3-4. Gas detection tape cassette

3-4-2. Managing gas detection tape cassette
CAUTIONStore a gas detection tape cassette in the refrigerator without taking it out of the package. Be careful
not to put it in the freezer.

The detection tape is extremely delicate. Inappropriate management impairs the detection tapeperformance and disturbs accurate gas detection. Understand the following instructions for management
thoroughly before storing the detection tape.

CAUTION
Once a gas detection tape cassette is taken out of the package, do not store it.

Even though a gas detection tape cassette, which has been taken out of the package, is returned in the
package and stored in the refrigerator, do not use it after two months. The detection tape may be
deteriorated and unable to maintain the specified performance.

CAUTION
Use the gas detection tape cassette within the specified storage period.

 Attach and use up the gas detection tape cassette within the storage period specified on the package.
The detection tape with expired storage period may be deteriorated and unable to maintain the specified
performance.
 If it is taken out of the package to store or left attached to the main unit of the gas monitor inadvertently
or for storage purpose, the detection tape may become discolored and unable to maintain the specified
performance. Therefore, after opening the package, use it as soon as possible.

3-4-3. Returning gas detection tape cassette
Please return the used tape with case to us. We dispose it properly at our end.

- 19 -

FP-300AGZS

4 How to Operate

4-1. Preparation

4

How to Operate
4-1. Preparation
4-1-1. Check items
 Tubing:
 Wiring:

Check that the specified requirements (tube material, length, etc.) are observed.
See "3-2 Tubing".
Check that the connection of external output, etc. is done correctly.
See "3-3 Wiring".

4-1-2. Power input
Understand the following information thoroughly before turning on the power.
 Make sure that the power switch of the gas monitor is OFF ( side).
 Make sure that the power voltage matches the power voltage specified on the gas monitor.

WARNING
Make sure to use the gas monitor on the specified power voltage. Ignoring this may damage the gas
monitor or cause electric shock or fire.

WARNINGTo prevent a risk of electric shock, ground the gas monitor using a grounding wire. Ignoring this may
cause electric shock. Use the E bolt on the rear side of the main unit.

 Use the power supply away from devices consuming large amount of power such as large-scale motor.
 Avoid overloading electrical outlet.
 Avoid damage on the power cable. Also, do not bend, stretch or apply excessive force on the power
cable.

FP-300AGZS- 20 -

4 How to Operate

4-1. Preparation

4-1-3. Power-on
Turn the power switch of the gas monitor from OFF ( side) to ON (l side).
The gas monitor is powered on and brought into detection state.

NOTE
After power-on, tape feed is always executed. Turning ON/OFF the power unnecessarily with the tapeattached can shorten the tape life.

NOTE
If a high concentration gas is present after turning on the power with the detection tape attached, alarm
will be triggered even before the gas monitor is brought into detection state. However, because the gas
monitor is not in detection state yet, the concentration display cannot provide accurate information.

4-1-4. Attaching gas detection tape cassette
Attach the gas detection tape cassette suitable for the detectable gas.
Check that the tape model is appropriate for the detectable gas.
For details, see "6-3 How to replace gas detection tape cassette". After a gas detection tape cassette is
attached (cassette tray is closed), the gas monitor enters detection state in approximately one minute.

NOTE
After the tape cassette is attached, tape feed is always executed once. Removing/attaching the tapeunnecessarily can shorten the tape life.

NOTE
If a high concentration gas is present immediately after attaching the tape cassette, alarm will be triggered
even before the gas monitor is brought into detection state. However, because the gas monitor is not in
detection state yet, the concentration display cannot provide accurate information.

4-1-5. Flow rate
Because the suction flow rate of the gas monitor is automatically adjusted by the flow rate control function,
the flow rate, in principle, does not need to be controlled. If the flow rate goes out of the specified flow rate
for some reasons, the flow lamp turns from green to orange, but the flow rate will be adjusted automatically.

CAUTION
If the auto-adjustment cannot be performed (due to tube clogging, leak, etc.), the message
indicating dropped flow rate "FAIL=FLOW" will be displayed. In this case, identify the cause andtake appropriate actions.

- 21 -

FP-300AGZS

4 How to Operate

4-2. Operation

4-2. Operation
When the power switch on the front panel is turned ON (l side), the gas monitor performs function check anddisplays necessary information, and then enters detection state.
Power switch: ON
POWER/TROUBLE lamp: Lights up
continuously

For FP-300
Displays program version

Displays gas name to bemeasured and full scale value
Alarm setpoint
Warm-up state (for 20 minutes)

 If a detection tape is not
attached, the message
indicating a tape set error "TAPE
SET MISS" will be displayed.
Attach the detection tapeaccording to "6-3 How to replacegas detection tape cassette".
Paper feeding for detection

Measurement standby state
Checking detection tape(1) Gas name(2) Gas concentration display(3) Tape remaining amountFP-300AGZS

Measurement state- 22 -

4 How to Operate

4-3. Simple check of alarm setpoint

4-3. Simple check of alarm setpoint
Under normal measurement state, an alarm setpoint is displayed for about two seconds as shown below bypressing the LAMP RESET switch on the front panel.
Note that the normal measurement state means the state where no gas alarm or fault alarm is triggered.

 L: Precautionary alarm (WARNING)
 H: Main alarm (ALARM)- 23 -

FP-300AGZS

5 Functions

5-1. LCD display

5

Functions5-1. LCD display
5-1-1. Display format
The LCD display uses the following format.

(1)

(2)

(3)
(1) Displays a gas name in chemical formula, etc. ........................ Example) C5F8(2) Displays a gas concentration. ................................................... Displayed in ppm.
(3) Displays remaining days for detection tape.

FP-300AGZS- 24 -

5 Functions

5-1. LCD display

5-1-2. Gas concentration display
The gas monitor provides the following features of gas concentration display.
 The gas concentration display is updated at the end of each detection cycle.
 The gas concentration display indicates an average gas concentration within a detection cycle.
 The detection result (average value) from the previous detection cycle is output for the gas concentration
display.
See the following chart that indicates the timing of concentration display for gas concentration varying withtime.

Measurement cycle

Gas concentration variation

Concentration
conversion

Gas concentration display- 25 -

Elapsed time

FP-300AGZS

5 Functions

5-2. Alarm function

5-2. Alarm function
5-2-1. Gas alarm
The gas monitor detects a gas from a change of color which occurs on the detection tape with special
reagent applied on it when the detection tape contacts a specific amount of gas within a unit time. Thismeans, the gas concentration display cannot provide accurate information unless a unit time (detection
cycle) passes. However, in the event of a presence of high concentration gas, alarm must be triggered
immediately.
The alarm activation of the gas monitor uses the theory shown in the following figure to enable quick
response.

NOTE
For 4 - 20 mA output, concentration indication is performed at the end of a measurement cycle. Therefore,
the alarm level output lags behind the alarm triggered from alarm contact output.

Measurement
time

Trigger

FP-300AGZS

Change  Concentration conversion
Measurement
time

Measurement
time

Concentration
indication

Trigger

Change of tape color

Detection cycle
Change  Concentration conversion

Change of tape color

Detection cycle- 26 -

Measurement
time
Concentration
indication
Trigger5 Functions

5-2. Alarm function

5-2-2. Alarm activation timing chart
NormalAlarm setpoint

Alarm

Recovered

ALARM

Alarm setpoint WARNING

Buzzer stop

Lamp reset

Gas concentration
Self-latching operation (standard)
Alarm lamp (1st)
Alarm contact (1st)
Alarm lamp (2nd)
Alarm contact (2nd)BuzzerAlarm lamp (1st)
Alarm contact (1st)
Alarm lamp (2nd)
Alarm contact (2nd)BuzzerAlarm lamp (1st)
Alarm contact (1st)
Alarm lamp (2nd)
Alarm contact (2nd)BuzzerAlarm lamp (1st)
Alarm contact (1st)
Alarm lamp (2nd)
Alarm contact (2nd)BuzzerNon latching (Auto-reset) operation (option)
Alarm lamp (1st)
Alarm contact (1st)
Alarm lamp (2nd)
Alarm contact (2nd)Buzzer- 27 -

FP-300AGZS

5 Functions

5-3. External output

5-3. External output
5-3-1. External output contact
The external output contact of the gas monitor is reset automatically after performing a reset operation with
self-latching function.
Precautionary alarm (WARNING) contact output: No-voltage "c" contact, rating: 125 VAC, 0.5 A(resistant load)
Main alarm (ALARM) contact output:
No-voltage "c" contact, rating: 125 VAC, 0.5 A(resistant load)
Fault alarm (TROUBLE) contact output:
No-voltage "c" contact, rating: 125 VAC, 0.5 A(resistant load)
Connect to the terminal plate as shown below.
For "a" contact (NO)For "b" contact (NC)The alarm contact of the gas monitor is used to transmit signals to activate an external buzzer, alarm lamp,
etc. Do not use the alarm contact for controlling purpose (e.g., controlling the shutdown valve).

CAUTION
The "b" contact (break contact) under de-energized state may be opened momentarily by a physicalshock, such as external force.
When the "b" contact is selected for the alarm contact, take appropriate actions to prepare for a
momentary activation, for example, add signal delay operation (approximately one second) to thereceiving side of the "b" contact.

When controlling external load, some load characteristics may adversely affect the gas monitor.
In such case, take the following measures to stabilize the operation and protect the contact.
 Add a low voltage relay to which the CR circuit (spark killer: SK) suitable for the relay coil (diode, etc. forDC) is directly connected.
 Add a CR circuit also to the loaded side of the relay as necessary.
Reference: It may be better to attach the CR circuit to the contact side for certain load conditions, however,it must be attached after checking the load operation.

FP-300AGZS- 28 -

5 Functions

5-3. External output

Coil

Load

SK: Surge absorbing filter

Alarm contact

Power supply

Relay(Low voltage relay)

Power supply- Understanding of alarm contact on inductive load If inductive load is used at the alarm contact, the following errors may occur easily because very highcounter electromotive voltage is generated.
The relay contact melts and disables the contact activation.
High voltage entered inside of the indicator damages any number of electric parts.
Resulted large noise makes CPU out of control and behave abnormally.
Unexpected noise may enter the contact regardless of inductive load, thus posing a risk of above errors.

To avoid above errors, the following preventive measures should be taken.
 In principle, inductive load should not be used. (Never use a fluorescent lamp, motor, etc.)
 External contact amplification is required to use inductive load. However, because an external relay coilis also regarded as inductive load, use a relay operated at low voltage (up to 100 VAC) and protect with
an appropriate surge killer.
 Make sure to protect the contact with an appropriate surge killer to directly control a small inductive load.
The rated specification of the contact in this case is 50% of resistance load or less.
100 VAC0.25 A or less
Followings are examples of inductive load.
 Revolving light, external relay, buzzer, siren, fan, fluorescent lamp, motor, etc.

- 29 -

FP-300AGZS

5 Functions

5-3. External output

5-3-2. External signal output (4 - 20 mA)
The gas monitor provides 4 - 20 mA output that corresponds to the gas concentration display on LCD.
The 4 - 20 mA output on FP-300AGZS has the following features.
 The value is updated at the end of each detection cycle.
 The value indicates an average gas concentration within a detection cycle.
 The detection result (average value) from the previous detection cycle is output.
See the following chart that indicates the timing of 4 - 20 mA output for gas concentration varying with time.
Measurement cycle

Gas concentration variation

Elapsed time

4 - 20 mA output

5-3-3. External output operation
Output:4 - 20 mA output
Load resistance: Below 300 Ω
4 mA ............Gas concentration indication 0
20 mA ............F.S.
22 mA ............Gas concentration over F.S.
0.5 mA ............During a time of trouble
2.5 mA ............After initial power-on (until the gas monitor enters detection state)
During maintenance

FP-300AGZS- 30 -

6 Maintenance

6-1. Daily maintenance

6

Maintenance
6-1. Daily maintenance
Perform the following daily maintenance to maintain the gas monitor performance.
(1) Check for the remaining amount of detection tape.
 Check it with the remaining days display "TAPE VALID ...D" in the lower section of LCD on thefront panel.
 If the detection tape has reached the replacement time, replace it according to "6-3 How to
replace gas detection tape cassette".
(2) Make sure that the sample gas flow rate is within the specified flow rate (flow lamp lights in green).
(3) Make sure that no fault alarm is triggered.
 If a fault alarm is triggered, recover the condition according to "7-2 Causes and remedies for failure".

6-2. Regular maintenanceWe recommend a six-month regular maintenance to use the gas monitor for a long time.

6-3. How to replace gas detection tape cassette
Replace the gas detection tape cassette according to the following procedure.
(1) Check that the gas monitor is in detection state.
(2) Press and hold the EJECT key on the front panel for two or three seconds to open the cassette tray. At
this time, buzzer sounds four times.

NOTE The EJECT key cannot be used during "TAPE CHECK".
(3) Take out the used gas detection tape cassette.
(4) Check that the tape model is appropriate and then insert a new tape in the correct direction. If the tapeis directed wrongly, it cannot be inserted. Do not squeeze it.
The appropriate model of detection tape is displayed on LCD while the cassette tray is opened.

CAUTION
The model of detection tape varies depending on the gas to be measured. Use of an unspecified
model of detection tape may disable gas detection. Also, using the detection tape that has passed
its expiration date may disable gas detection.
Improper attachment of detection tape may cause troubles like a cut of the tape. Insert the gas
detection tape cassette all the way properly.

- 31 -

FP-300AGZS

6 Maintenance

6-4. Maintenance mode

(5) Push the SET PUSH part on the cassette tray to close it.
 When the cassette tray is closed, the gas monitor returns to detection state.
 Due to self-diagnosis, it takes approximately one minute to start detection.

CAUTION
Push the cassette tray into the gas monitor until it is locked securely. If the cassette tray opens
halfway, the tape may be cut.

CAUTION
Always attach a new detection tape cassette. If a used detection tape cassette is attached, the tapeends (FAIL = TAPE) suddenly before the remaining days display reaches 0.
The same thing happens when the cassette tray is set immediately after ejecting it. Turning ON/OFF
the power with the detection tape attached does not affect counting of the remaining days, however,if the gas monitor is stopped for a long time or 68 days have passed from the time of attachment, theexpiration date of the detection tape passes and measurement becomes unavailable. In this case,replace the gas detection tape cassette with new one.

6-4. Maintenance mode
WARNING
After the adjustment, etc. is completed, never fail to press the MODE key to return to the detectionmode.
(If the gas monitor remains in the maintenance mode, it automatically returns to the detection modein ten hours.)

The maintenance mode provides the following items.
No.

Item

LCD display

Details

1

Alarm test

ALARM TEST ?

Perform the alarm test.

2

LCD contrast adjustment

LCD CONTRAST ?

Adjust the LCD contrast.

3

Pyrolyzer heatertemperature setting

PL TEMP SET ?

Display the set temperature of the pyrolyzer heater.

4

Pyrolyzer heatertemperature displayNOW

PL TEMP ?

Display the current temperature of the pyrolyzer
heater.

5

Flow rate/pump ratio display

NOW

FLOW ?

Display the current flow rate and pump output.

6

Flow rate auto-adjustment
setting

AUTO

FLOW ?

Set the flow rate auto-adjustment to ON/OFF.

7

Flow rate adjustment

ADJ FLOW ?

Set the flow sensor with the flow rate at 0.5 L/min.

8

Pump ratio check setting

PUMP CHECK ?

Set the pump output to ON/OFF.

9

Light volume check

NOW

Display the current light level.

POT ?

WARNING
Do not change the settings of pyrolyzer heater temperature, flow rate, etc. in the maintenancemode.
Ignoring this prevents the gas monitor from performing measurement properly.

FP-300AGZS- 32 -

6 Maintenance

6-4. Maintenance mode<<Maintenance Mode>>
Detection Mode
Press the MODE key for three seconds.

Alarm Test
Perform the alarm test.

Alarm test P. 35

LCD Contrast Adjustment
Adjust the contrast.

LCD contrast
 P. 36

Pyrolyzer Heater Temperature Setting
Set the pyrolyzer heater temperature.
Do not change the setting when thegas monitor is used in a normal way.
Pyrolyzer Heater Temperature Display
Display the current temperature of thepyrolyzer heater.

Flow Rate/Pump Ratio Display
Display the current flow rate and pump
output.

Flow Rate Auto-adjustment Setting
Set the flow rate auto-adjustment to
ON/OFF. Do not change the setting
when the gas monitor is used in anormal way.
Flow Rate Adjustment
Set the flow sensor. Do not change thesetting when the gas monitor is used ina normal way.
Pump Ratio Check Setting
Set the pump output to ON/OFF. Do
not change the setting when the gas
monitor is used in a normal way.
Light Volume Check
Display the current light level.

- 33 -

FP-300AGZS

6 Maintenance

6-4. Maintenance mode

6-4-1. Alarm test
WARNING
Before starting the alarm test, provide a notification to the related sections so that they can prepare
for false abnormalities (external output signals and alarm contact). After the test is completed, neverfail to press the MODE key to return to detection state.
(If the gas monitor remains in the alarm test mode, it automatically returns to detection state in ten
hours.)

Alarm Test Mode
Press the BZ STOP key.
(To activate the contact during an
alarm test, press the BZ STOP and
LAMP RESET keys simultaneously.)
Increase the reading by pressing the key.

Precautionary Alarm
When the reading reaches the
precautionary alarm point, the
WARNING lamp starts blinking.
(When Contact ON is selected, the
WARNING contact is activated.)

Main Alarm
When the reading reaches the main
alarm point, the ALARM lamp starts
blinking.
(When Contact ON is selected, the
ALARM contact is activated.)
Decrease the reading by pressing the key.
When the reading reaches 0 ppm, thegas monitor returns to the menu
screen.

NOTE
Releasing the  key or pressing another key in the middle of the process stops the reading halfway ordecreases it to 0.

FP-300AGZS- 34 -

6 Maintenance

6-4. Maintenance mode

6-4-2. LCD contrast adjustment
LCD Contrast Adjustment Mode
Press the BZ STOP key.

Adjustment
Pressing the  key makes the display
darker and pressing the  key makes
the display lighter.
When the BZ STOP key is pressed,
the contrast level is determined andthe gas monitor returns to the menu
screen.

- 35 -

FP-300AGZS

6 Maintenance

6-5. List of recommended regular replacement parts

6-5. List of recommended regular replacement parts
No.

Item

Maintenanceintervals

Replacement
intervals (year)

Quantity(pieces/unit)

1

Pump (diaphragm excluded)

6 months

1-3

1

2

Diaphragm

6 months

1-2

1

3

Pump holder

1 year3-6

1

4

Sensor head

---

2-4

1 set

5

Internal tube (rubber)

6 months

1-3

1 set

6

Internal tube (Teflon)

6 months

3-8

1 set

7

Filter holder(with O-ring)

1 year3-6

1

8

Geared motor(for deck driving)

---

7-9

1

9

Geared motor(for tape winding)

---

7-9

1

10

Switching regulator(for main unit)

---

4-6

1

11

Switching regulator(for pyrolyzer heater)

---

2-4

1

12

Main PCB

---

7-8

1

13

Terminal plate PCB

---

7-8

1

14

Switch PCB (LCD)

1 year

7-8

1

15

Fuse (3A)

---

8

2

16

Flow sensor

1 year

5

1

17

Fan

1 year

2-4

1

18

SSR

---

7-8

1

19

Catalyst tube

6 months

1

1

20

O-ring for catalyst tube

---

3-6

2

21

Internal filter (Balston)

---

2-4

1

22

External dust filter

6 months

6 months - 1 year

1

NOTE

 The above replacement intervals are recommendation only. The intervals may change depending on
the operating conditions. These intervals do not mean the warranty periods either. The result of theregular maintenance may determine when to replace the parts.
 PCB replacement is required due to deterioration of capacitor.

FP-300AGZS- 36 -

7 Measures for Abnormalities

7-1. Self-diagnostic function

7

Measures for Abnormalities
7-1. Self-diagnostic function
The gas monitor is equipped with various self-diagnostic functions.
When an abnormal condition is detected, the gas monitor displays the following message and takes
corresponding action. Perform a recovery operation.
Self-diagnosis

LCD message

POWER/TROUBLE lamp

Alarm contact

Sensor failure

FAIL = SENSOR

Blinking

Alarm state

Flow rate drop

FAIL = FLOW

Blinking

Alarm state

Flow sensor failure

FAIL = FLOW SENS

Blinking

Alarm state

Tape breakage

FAIL = TAPE

Blinking

Alarm state

Tape cassette replacement notice

CHANGE TAPE

Blinking

Normal state

Tape end

TAPE END

Blinking

Alarm state

Tape error

FAIL = TAPE LEVEL

Blinking

Alarm state

Tape setting error

TAPE SET MISS

Blinking

Alarm state

System abnormality

FAIL = SYSTEM

Blinking

Alarm state

Motor abnormality

FAIL = MOTOR

Blinking

Alarm state

Heater abnormality (lowtemperature)

FAIL = HEATER(L)

Blinking

Alarm state

Heater abnormality (hightemperature)

FAIL = HEATER(H)

Blinking

Alarm state

Fan abnormality

FAIL = FAN

Blinking

Alarm state

NOTE
When more than one trouble occurs on the gas monitor, "" is displayed on the right side of LCD.
Press the "LAMP RESET" switch on the front panel to display the contents of another trouble.

- 37 -

FP-300AGZS

7 Measures for Abnormalities

7-2. Causes and remedies for failure

7-2. Causes and remedies for failure
Type of failure

Major cause

Remedial action

Open circuit on the sensor (detectionpart), disconnected connector,
decreased output, etc.

Ask the manufacturer for repair.

The measurement light path
(LED/sensor) is soiled significantly.

Same as above

Flow rate drop
FAIL=FLOW

Aging deterioration of the pump or dust
clogging the flow path.

Replace the filter. If it does not improve
the situation, ask the manufacturer for
repair.

Flow sensor failure
FAIL=FLOW SENS

Abnormal flow sensor

Same as above

The detection tape cassette is not
attached properly.

Attach a new detection tape cassetteproperly.

The detection tape is damaged whileattaching the detection tape cassette.

Same as above

Tape cassette replacement
noticeCHANGE TAPE

The detection tape nears its end.

Replace the detection tape cassettewith new one.

Tape end
TAPE END

The detection tape has ended.

Replace the detection tape cassettewith new one.

Detection is attempted with a tapewhose color has been changed morethan the specified level.
A tape that has passed the expiration
date or that has been left outside of therefrigerator is used.

Replace the detection tape cassettewith new one.

The volume of light source (LED) is
dropped.

Ask the manufacturer for repair.

Tape setting error
TAPE SET MISSThe detection tape cassette is not
attached. Or some kind of attachment
error occurs.

Attach the detection tape cassette. Takeout the tape cassette, check the tapecondition and then attach it again if
there is no problem.

System abnormality
FAIL=SYSTEM

Gas monitor system abnormality

Cycle the power. If it does not recover
the system, ask the manufacturer for
repair.

Motor abnormality
FAIL=MOTOR

Geared motor failure, etc.

Ask the manufacturer for repair.

The heater is not warmed.
Internal power failure

Ask the manufacturer for repair.

Abnormal low temperature around theheaterMove the gas monitor to a place withhigher ambient temperature.

Insufficient warm-up time

If the heater does not recover after
energizing it for one hour or more, ask
the manufacturer for repair.

Heater abnormality(high temperature)
FAIL=HEATER(H)

Abnormal overheating around the heater
The gas monitor is installed in a placewith abnormally high ambient
temperature or subjected to radiant heatfrom an electric furnace, etc.

Move the gas monitor to a place withlower ambient temperature or place notsubjected to direct radiant heat.

Fan abnormality
FAIL=FAN

Fan failure
Internal power failure

Ask the manufacturer for repair.

The power terminal is disconnected.

Make sure to connect to the terminal
plate.

The fuse is blown or not installed.

Install a fuse with the specified rating.

Voltage is not supplied from the power
supply.

Check the power supply voltage.

Sensor failure
FAIL=SENSOR

Tape breakage
FAIL=TAPE

Tape error
FAIL=TAPE LEVEL

Heater abnormality(low temperature)
FAIL=HEATER(L)The power cannot be turnedon.

FP-300AGZS- 38 -

8 How to Stop Operation

8

How to Stop Operation
Turn the power switch of the gas monitor from ON (l side) to OFF ( side).

CAUTION
Avoid the following locations to store the gas monitor. Ignoring this may result in failure or accident.
 Places exposed to direct sunlight Dusty or dump places Places exposed to direct wind Places with frequent vibrations
 On unstable or inclined surfaces Outdoors or places exposed to water

CAUTION
Do not store the gas monitor with the gas detection tape cassette inserted. The detection tape may
be deteriorated and the gas monitor may become unable to perform accurate gas detection whenused again.

FP-300AGZS- 39 -

9 Disposal of Products

9

Disposal of Products
When the gas monitor is disposed of, it must be treated properly as an industrial waste in accordance withthe local regulations.

FP-300AGZS- 40 -

10 Product Specifications

10

Product Specifications
Standard specifications
Detection principle
Gas to be detected
Concentration display
Detection range
Measurement cycle
Measurement method
Detection method
Suction flow rate
Alarm setpoint
Power display
Displays
External output
Alarm accuracy(under the same conditions)
Response time
(under the same conditions)
Gas alarm typeGas alarm display
Gas alarm pattern
Gas alarm contact
Fault alarm/self diagnosis

Fault alarm display
Fault alarm patternFault alarm contact
Contact capacity
Transmission system
Transmission specifications
Power supply
Power consumption
Continuous operating time
Tube connecting holeWarm-up time
Operating temperatures
Operating humidities
Structure

Detection tape photoelectric photometry
C5F8/C4F6LCD digital display
C5F8: 0 - 5 ppm
C4F6: 0 - 5 ppm
C5F8: 20 seconds
C4F6: 20 seconds
Integration value measurement within a time frame
Pump suction type/pyrolysis type
Approx. 0.5 L/min
C5F8: 2 ppm (1st)/4 ppm (2nd)C4F6: 2 ppm (1st)/4 ppm (2nd)PW/TR lamp on (green)
Gas name/tape remaining amount display
Gas concentration signal/gas alarm contact/fault alarm contact
Within ±30% to the alarm setpoint value
Within 60 seconds after providing a gas 1.6 times the alarm setpoint (Within a single
measurement cycle. Delay in the tube excluded.)Two-step alarm (H-HH)
1st: WARNING lamp blinks or lights up(orange)/buzzer
2nd: ALARM lamp blinks or lights up (red)/buzzer
Self-latching or non latching (Auto-reset)
No-voltage contact 1C
System abnormality/sensor failure/flow rate drop/motor abnormality/tapebreakage/tape cassette replacement notice/tape end/tape error/tape setting
error/heater abnormality/fan abnormality
PW/TR lamp blinks (green)/contents display (LCD message)
Non latching (Auto-reset)
No-voltage contact 1C
125 VAC, 0.5 A (resistance load)
Analog transmission
4 - 20 mA DC (load resistance under 300 Ω)
100 - 240 VAC ±10%, 50/60 Hz
Max. 150 VA
Detection tape life: Max. two months (under no-gas condition)
Rc1/4 (O.DΦ6-1t, half-union for Teflon tube <PP> supplied)
Approx. 20 minutes
5 to 35 C (at a constant condition)
30 to 90%RH (Non-condensing)Tabletop type

- 41 -

FP-300AGZS

10 Product Specifications
External dimensions
WeightOuter color

Approx. 250 (W) x 198 (H) x 300 (D) mm (projection portions excluded)
Approx. 9.5 kg
Munsell 5Y8.4/0.5* Specifications subject to changes without notice.

Standard accessories
 Gas detection tape cassette ............... 1
 Dust filter ............................................. 1
 Operating manual ............................... 1
Optional parts
 Gas detection tape cassette Dust filter
 FuseFP-300AGZS- 42 -

11 Detection Principle

11

Detection Principle
A gas to be measured is passed through a pyrolyzer heater to have pyrolytic decomposition and generate agas that reacts with color-producing reagent. Then this pyrolytically generated gas is passed through acellulose tape impregnated with color-producing reagent. The reflection light from the color formed on thetape by reaction is measured electrically to detect very low concentration toxic gases quantitatively.
The gas chamber that introduces a gas to the tape is a light-resistant container containing light-emitting andlight-receiving elements.
The degree of color forming is recognized as a change in the amount of reflection light from the tape. Thechange ratio of this reflection light intensity is called response value to gas concentration. With a standard
curve obtained in advance, concentration can be determined from a response value of detection gas.

Structure diagram
Quartz pipe

Alumina case

Heater coil

Gas IN

AluminaLight source (LED)
Tape

Gas chamberLight receiver(photo diode)
Color-forming trace

Reel

Reel

Gas OUT- 43 -

FP-300AGZS