PT0E-1677

GX-3R/GX-3R Pro
Docking Station

SDM-3R
Operating ManualContents
1 Product Overview ............................................................................................................................................ 3
1-1. Introduction .............................................................................................................................................. 3
1-2. Intended use ............................................................................................................................................ 3
1-3. DANGER, WARNING, CAUTION, and NOTE ........................................................................................ 4
1-4. Method of confirmation for CE/UKCA marking type ................................................................................ 4
2 Product Configuration ...................................................................................................................................... 5
2-1. Main unit and accessories ....................................................................................................................... 5
Main unit ...................................................................................................................................................... 5
Accessories ................................................................................................................................................. 5
2-2. Part names and functions ........................................................................................................................ 6
3 Usage Instructions ........................................................................................................................................... 8
3-1. Usage note .............................................................................................................................................. 8
3-2. Startup preparations ................................................................................................................................ 8
3-2-1. Required equipment/materials ......................................................................................................... 8
3-2-2. Interconnection (optional) ............................................................................................................... 11
3-2-3. Connecting the AC adapter ............................................................................................................ 13
3-2-4. Mounting the gas monitor (sold separately) ................................................................................... 14
3-2-5. Charging the gas monitor (sold separately) ................................................................................... 15
3-2-6. Connecting the gas ......................................................................................................................... 16
3-2-7. Installing the PC Controller Program (optional) ............................................................................. 21
3-3. Startup ................................................................................................................................................... 26
3-3-1. Turning on the power ...................................................................................................................... 26
3-3-2. LED display list ............................................................................................................................... 28
3-4. Settings .................................................................................................................................................. 30
3-4-1. Setting list ....................................................................................................................................... 32
3-4-2. Cylinder settings ............................................................................................................................. 34
3-5. Operations using the product operation buttons ................................................................................... 36
3-5-1. Bump test and calibration procedure ............................................................................................. 36
3-5-2. Copying test/calibration results to a USB flash drive (optional) ..................................................... 40
3-5-3. Downloading gas monitor (sold separately) logger data ................................................................ 44
3-6. Operating using the PC Controller Program (optional) ......................................................................... 45
3-6-1. Bump test and calibration procedure ............................................................................................. 45
3-6-2. Creating a calibration certificate ..................................................................................................... 54
3-7. Turning off the power ............................................................................................................................. 56
4 Storage and Disposal .................................................................................................................................... 57
4-1. Procedures for storage or when not in use for extended periods ......................................................... 57
4-2. Product disposal .................................................................................................................................... 57
5 Troubleshooting ............................................................................................................................................. 58
6 Product Specifications ................................................................................................................................... 60
6-1. Specifications list ................................................................................................................................... 60
6-2. Accessory list ......................................................................................................................................... 60
Revision history............................................................................................................................................. 61

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1
1

Product Overview

1-1. Introduction
Thank you for your purchase of the SDM-3R Docking Station (“the product” hereinafter) for use with
the GX-3R and GX-3R Pro Portable Gas Monitor. Please confirm that the model number of the
product you purchased matches the model number of the product covered by this manual.
The product should be used only by fully-trained personnel.
The maintenance procedures described in this manual also should be performed only byappropriately-trained personnel. Any maintenance procedure not described in this manual must be
performed by Riken Keiki or our certified service engineers. Please contact Riken Keiki.
This manual describes how to use the product and provides product specifications. Make sure you
have read and fully understood the contents of this manual before using the product. This applies
both to first-time users and those who have previously used the product.
Keep this manual in a safe place for future reference.
The contents of this manual are subject to change without notice to allow product improvements. Any
duplication or reproduction of this manual without permission is prohibited, whether in whole or inpart.
In addition to this manual, manuals are provided for optional products. Refer to the following manuals
along with this manual when using optional products:
1) GX-3R Portable Gas Monitor Operating Manual (PT0E-176)
2) GX-3R Pro Portable Gas Monitor Operating Manual (PT0E-177)
Regardless of the warranty period, Riken Keiki does not accept any liability for accidents or damage
resulting from use of the product. Be sure to read the warranty policy set forth on the warranty.

1-2. Intended use
The product is a dedicated docking station designed for use with the GX-3R or GX-3R Pro Portable
Gas Monitor (sold separately). It allows charging, bump testing, calibration, and alarm checking for
the GX-3R or GX-3R Pro.
The product can be operated either using the buttons on the unit, or by connecting to a computer(PC) using the dedicated SW-SDM-3R(EX) PC Controller Program (optional).
The number of solenoid valves (one to three, specified at the time of purchase) and the number ofgas types that can be connected simultaneously depend on the product specifications. Check the
specifications before use to ensure correct use for the intended purpose.
Note that this document refers to the GX-3R and GX-3R Pro Portable Gas Monitor (sold separately)
simply as “gas monitor (sold separately)”.

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1-3. DANGER, WARNING, CAUTION, and NOTEThis manual uses the following headings to ensure safe and effective work:

DANGER

This indicates situations in which improper handling may resultin fatal or serious injury to persons or serious damage toproperty.

WARNING

This indicates situations in which improper handling may result
in serious injury to persons or serious damage to property.

CAUTION

This indicates situations in which improper handling may resultin minor injury to persons or minor damage to property.

NOTE

This indicates handling tips.

1-4. Method of confirmation for CE/UKCA marking type
The CE/UKCA marking is labeled on the detector in case of comply with CE/UKCA mark. Pleaseconfirm the instrument specification before using. Please refer Declaration of Conformity that is at theend of this manual if you have CE/UKCA marking type.

CE/UKCA mark

CE/UKCA mark label

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2
2

Product Configuration

2-1. Main unit and accessories
Open the box and packaging and inspect the product and accessories.
If anything is missing, contact Riken Keiki.

Main unit
For detailed information on the names and functions of product parts and the LED display, see ‘2-2.
Part names and functions’ on page 6.

SDM-3R main unit

Accessories
・ Cylindrical filter (×1)
・ Tube (approx. 40 mm long, 5 mm - 7 mm diameter) (×1)
・ AC adapter (×1)
・ Cross recessed head screw (×1)

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2-2. Part names and functions
This section describes the names and functions of the various parts of the main unit.

⑥

⑦
⑧

⑤

④

③

②

①

⑩

⑬

No.

Name

①

POWER button②

COPY button③

EDIT/ENTER button④

CAL/▲ button⑤

BUMP/▼ button⑥⑦

Gas monitor dockGas monitor cover

⑫
⑪

⑨

⑭

Function・ Turns the product power on and off.
(Simultaneously pressing the EDIT/ENTER button turns off the gas
monitor (sold separately).)・ Copies bump test, calibration, and alarm check records to a USB flash
drive (optional).
(Simultaneously pressing the CAL/▲ button clears the memory in themain unit.)
・ Displays various setting menus.
(Simultaneously pressing the BUMP/▼ button starts the alarm check.)(Simultaneously pressing the POWER button turns off the gas monitor(sold separately).)
・ Starts/cancels calibration.
・ Moves the cursor up on the screen.
(Simultaneously pressing the COPY button clears the memory in themain unit.)
・ Starts/cancels bump testing.
・ Moves the cursor down on the screen.
(Simultaneously pressing the EDIT/ENTER button starts/cancels thealarm check.)
Position for mounting the gas monitor (sold separately) on the main unit
Cover for securing the gas monitor (sold separately) in place on the main unit
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No.

Name

⑧

Lever

⑨
⑩
⑪

Air inlet
Gas inlets
Power jackPC connection cableconnector⑫⑬

LAN cable connector⑭

Gas outlet

Function
Used when switching between the GX-3R (sold separately) and GX-3R
Pro (sold separately), as they are shaped differently. Raise to mount the
GX-3R; push down to set the GX-3R Pro.
The inlet draws in air.
The inlets draw in gas. Marked GAS 3/GAS 2/GAS 1 from left to right
Insert the power supply AC adapter plug.
Use a USB cable (Type-A male - Type-B male) (optional) to connect the
product to a PC.
Use a LAN cable (optional) to connect the product to a network within thebuilding.
Expels aspirated gas.

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3
3

Usage Instructions

3-1. Usage note
The operating precautions apply to both first-time users and those who have previously used the
product.
Ignoring these precautions may damage the product and result in inaccurate gas detection.

3-2. Startup preparations
NOTE
 The product is compatible with both the GX-3R and GX-3R Pro gas monitors (sold separately).

3-2-1. Required equipment/materials
The following equipment and materials are required in addition to the product.
Gas monitor (GX-3R or GX-3R Pro)
Gas for bump testing and calibration
Gas sampling bag for exhaust gas (where necessary)
Exhaust tube (where necessary)<When using a gas cylinder> Demand flow valve
 Tube (no longer than 30 cm)<When collecting gas in a gas sampling bag> Gas sampling bag

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<Recommended bump test and calibration gas concentrations>
Detection target gas

Sensor model

Gas

Gas concentration

Combustible gas (HC)NCR-6309

Isobutane (i-C4H10)

50 %LEL (0.9 vol%)Combustible gas (CH4)

NCR-6309

Methane (CH4)

50 %LEL (2.5 vol%)Hydrogen sulfide (H2S）

ESR-A1DP or
ESR-A13i

Hydrogen sulfide (H2S）

25.0 ppm

Oxygen (O2)ESR-X13P

Oxygen (O2)
N2 diluted

12.0 vol%Carbon monoxide (CO)ESR-A1DP,ESR-A1CP, or
ESR-A13P

Carbon monoxide (CO)50 ppmCarbon monoxide (CO)ESR-A1CP

Hydrogen (H2)
air diluted

500 ppm

Sulfur dioxide (SO2)ESR-A13D

Sulfur dioxide (SO2)
N2 diluted

8.00 ppm

Nitrogen dioxide (NO2)ESR-A13D

Nitrogen dioxide (NO2)
air diluted

4.80 ppm

Hydrogen cyanide(HCN)

8.0 ppm

Phosphine (PH3)(replacement gas)

0.5 ppm(PH3 concentration ×
conversion factor= HCN concentration)

Phosphine (PH3)0.50 ppm

Carbon dioxide (CO2)

2.5 vol%

Nitrogen (N2)

99.999 %Carbon dioxide (CO2)5,000 ppm

Nitrogen (N2)

99.999 %Hydrogen cyanide(HCN)

ESR-A13D

Phosphine (PH3)

ESR-A13D2

Carbon dioxide (CO2)

IRR-0409

Carbon dioxide (CO2)

IRR-0433

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WARNING
Bump test and calibration gas
The bump test and calibration gas may be hazardous (combustible or toxic gas) or may cause
oxygen deficiency. Handle the gas and related jigs and tools with due care.
Gas sampling bag
Use different gas sampling bags for each gas type and concentration to ensure accurate
calibration.
Bump test and calibration location
 Do not perform bump tests or calibration in confined spaces.
 Do not perform bump tests or calibration in an atmosphere where silicone or organic solvents arepresent.
 Calibrate indoors at normal temperatures with no significant fluctuations (within ±5 °C).
Carbon monoxide sensor (ESR-A1CP) calibration
 The carbon monoxide sensor with hydrogen interference correction function (ESR-A1CP) must be
calibrated separately for carbon monoxide and hydrogen.
 The carbon monoxide and hydrogen used for calibration must each be a single gas. Calibration
can be performed using a gas mixture, but it will result in poor sensitivity and inaccurate
concentration readings.
 If hydrogen sensitivity is not calibrated, carbon monoxide readings may be slightly higher or lower
than the actual concentrations when measured in environments where hydrogen is also present.
 Hydrogen must be calibrated within the temperature range from 10 °C to 30 °C.
Hydrogen cyanide sensor (ESR-A13D) calibration
 The bump test and calibration gas must be a standard gas consisting of hydrogen cyanide diluted
with air or phosphine diluted with nitrogen or air. Calibration can be performed with a gas mixture.
However, calibrations performed with a gas mixture will result in poor sensitivity and inaccurate
concentration readings.
 When using a replacement gas (PH3) for calibration, remove the interference gas removal filter(CF-A13D-2) before calibrating. For information on how to remove the filter, refer to the gas
monitor (sold separately) operating manual.
 When calibrating using a replacement gas (PH3), calculate
calibration gas concentrations by multiplying the PH3
concentration by the conversion factor (PH3 concentration ×
conversion factor = HCN concentration) The conversion factor isindicated to the right of the sensor model printed on the side of
the sensor. For information on how to remove the sensor, refer to
Typical conversion factor
the gas monitor (sold separately) operating manual.
marking (14 in this example)

CAUTIONGas discharge When feeding gas, it should either be discharged to a safe location with the gas outlet open to theatmosphere or collected using a gas sampling bag.
 When the product is used connected to other units, the gas discharge from each unit must betreated individually.
Carbon monoxide sensor (ESR-A1CP) calibration
 Hydrogen span adjustment may become impossible if the product is used or stored for extended
periods in dry environments. If [FAIL SENSOR] is displayed during hydrogen span adjustment,
allow the product to stand overnight in a sufficiently humid environment before repeating the span
adjustment. If CO span adjustment is no longer possible, contact Riken Keiki to request sensor
replacement.

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3-2-2. Interconnection (optional)
The product can be used with up to ten units interconnected. Only the piping is connected; theunits are not connected electrically. Do not connect more than ten units. Exceeding this number
may result in inadequate flow rates due to piping resistance.

1

Confirm that the product is not connected to the power supply.

2

Follow steps 3 to 5 below for all SDM-3R units except for therightmost unit.

Panel

View from right-hand side(with screws and panel attached)3

Remove the two screws securing the panel on the right-hand side of
the product.
Keep the screws, taking care not to lose them.

4

Remove the panel.
Keep the panel, taking care not to lose it.

5

Remove the transparent plugs attached to the four sample
connectors.
Keep the plugs, taking care not to lose them.

View from right-hand side(with screws, panel, and plugs removed)
6

Align the sample connectors on the two leftmost units, then push in
until the two units are in contact with each other.

7

Add a product in the same way as in step 6.
Leave the right-hand panel attached to the last unit connected.

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8

Add the connecting fixtures and screws (optional), then secure thetwo units together at the two connecting points on the base of each
unit.

Underside view

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3-2-3. Connecting the AC adapter
1

Insert the plug of the AC
adapter into the power jackat the rear of the product,
then secure the plug withthe screw.
Power jack2

Plug the AC adapter into
the mains outlet.

NOTE
 If the product is used connected to other units, each unit must be connected to a separate
power supply.

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3-2-4. Mounting the gas monitor (sold separately)<Positioning the lever>When mounting a GX-3R (sold separately) on
the product, raise the yellow lever inside theproduct docking slot toward you.
The lever position does not need to bechanged when mounting a GX-3R Pro (soldseparately).

Raise the lever until it locks into place with aclick. Mount the GX-3R (sold separately) withthe lever positioned in this way.

The gas monitor (sold separately) can be mounted with its rubber protection cover and rear clip
attached.

Rubber protection cover

Alligator clip

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Belt clip

<Mounting the gas monitor (sold separately)>1

Mount the gas monitor(sold separately) from thebottom first2

Close the gas monitor
cover on the product.

3-2-5. Charging the gas monitor (sold separately)
The product can be used to charge the gas monitor (sold separately).
1Turn on the product power.
Hold down the POWER button on the product for at least one second to turn on the
product power.
All of the LEDs light up in orange, after which the CHARGE LED blinks green.

2

Mount the gas monitor (sold separately) with its power turned off on
the product.
Closing the cover on the product automatically turns on the power for the gas monitor(sold separately).

3

Press the EDIT/ENTER button and POWER button to turn off the power
for the gas monitor (sold separately).
Turning off the power for the gas monitor (sold separately) automatically starts
charging.
<CHARGE LED>・ Charging: Blinking orange
・ Charging complete: Steady green
・ When a charging error occurs: Steady red

NOTE If you use the GX-3R (sold separately) or the GX-3R Pro (sold separately) with the lithium ion
battery unit, the product automatically charges for a period of five minutes when the battery level
drops to a level that causes a battery voltage error. [CHARGING] is displayed on the screen
together with the remaining charging time (minutes and seconds). Once charging is complete, thepower turns back on and the gas monitor is connected to the product.
 If you use the GX-3R Pro (sold separately) with the alkaline dry battery unit, [REPLACE] appears on
the screen when the battery level drops to a level that causes a battery voltage error. Replace thebatteries with new dry batteries.
 Bump test, calibration, and alarm check cannot be performed when [CHARGING] or [REPLACE] isdisplayed on the screen, even when a switch is pressed.

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3-2-6. Connecting the gas<Connection>

The gas inlets are located on the side of the product.
On products containing one solenoid valve, the gas inlet is GAS 1.
On products containing two solenoid valves, the gas inlets are GAS 1 and GAS 2.
On products containing three solenoid valves, the gas inlets are GAS 1, GAS 2, and GAS 3.

Gas outlet

Connectors are located at the rear of the product for connecting to external devices.

WARNING
Bump test and calibration gas
The bump test and calibration gas may be hazardous (combustible or toxic gas) or may cause
oxygen deficiency. Handle the gas and related jigs and tools with due care.
Gas sampling bag
Use different gas sampling bags for each gas type and concentration to ensure accurate
calibration.
Bump test and calibration location
 Do not perform bump tests or calibration in confined spaces.
 Do not perform bump tests or calibration in an atmosphere where silicone or organic solvents arepresent.
 Calibrate indoors at normal temperatures with no significant fluctuations (within ±5 °C).
Gas discharge when units are connected
When the product is used connected to other units, the gas discharge from each unit must betreated individually.

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CAUTION
 When feeding gas, it should either be discharged to a safe location with the gas outlet open to theatmosphere or collected using a gas sampling bag.

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<Piping>
SDM-3R containing three solenoid valves
Gas can be fed in via any of the three gas inlets GAS 1
to GAS 3. Set the individual gas types fed in via eachgas inlet as described in ‘3-4-2. Cylinder settings’.

ExhaustIf there are insufficient gas inlets for the gas types to be
fed in, select CHG (change gas) in the cylinder settings.
Gas inlet GAS 3 can be used to feed in and replace gas
manually.

SDM-3R containing one solenoid valve
Gas can be fed in via gas inlet GAS 1 only. To feed in
more than one gas type, edit the CHG (change gas)setting in the cylinder settings.
During calibration, the next gas must be connectedmanually after the first gas has been fed in.

Exhaust* Using a mixture of three gases enables adjustment forthree gases at once without manually changing thegases, even with just one gas inlet.

SDM-3R containing two solenoid valves

ExhaustOn products containing two solenoid valves, gas can be
fed in via the gas inlets GAS 1 and GAS 2.
If there are insufficient gas inlets for the gas types to be
fed in, select CHG in the cylinder settings. Gas inlet
GAS 2 can be used to feed in and replace gas manually.

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<Piping (using the PC Controller Program (optional))>SDM-3R containing three solenoid valves
Gas can be fed in via any of the three gas
inlets GAS 1 to GAS 3. Set the individual gas
types fed in via each gas inlet as describedlater in ‘Operating using the PC Controller
Program (optional)’.

ExhaustMount the gas monitor (sold separately) on the
product, then connect the PC.

SDM-3R containing one solenoid valve

ExhaustGas can be fed in via gas inlet GAS 1 only, inthe same way as the piping arrangement whenno PC is used.
If more than one gas type is to be fed in, the
PC Controller Program must be used to add
the gases to be fed in.

SDM-3R containing two solenoid valves
Gas can be fed in via the gas inlets GAS 1 and
GAS 2.
If more than two gas types are to be fed in, the
PC Controller Program must be used to add
the gases to be fed in.

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ExhaustNOTE With the default cylinder settings for domestic gas monitor models (sold separately), HC/CH4, O2,
and CO are assigned to GAS 1, H2S is assigned to GAS 2, and all other gases are assigned to GAS
3. If using a single gas mixture, H2S must be set to GAS 1.
 With ATEX/IECEx gas monitor models, HC/CH4, O2, CO, and H2S are assigned to GAS 1, and allother gases are assigned to GAS 2 and GAS 3.
 If GAS 2 or GAS 3 are not present due to the number of solenoid valves, these are assigned to
CHG 〇.
 For information on how to alter the cylinder settings, refer to ‘3-4-2. Cylinder settings’.

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3-2-7. Installing the PC Controller Program (optional)
The PC Controller Program (optional) can be installed on a PC to enable calibration using the
product to be controlled from the PC.
The PC Controller Program (optional) must be installed before it can be used.

NOTE Use a USB cable (Type-A male - Type-B male) (optional) to connect the product to a PC.

<System requirements>
The PC must meet the following system requirements to use the PC Controller Program (optional):
・ Operating system (OS): Windows® 8 or Windows® 10
・ Processor: Pentium® 2 processor or equivalent operating on an IBM® compatible PC (minimum
requirements)
・ Memory: 32 MB RAM (minimum)・ Available hard disk space: 32 MB (minimum)
・ An available USB port
<Installation>
Insert the installation CD containing1
the program into the CD-ROM driveof the PC. The installation screen
will appear automatically after ashort while.
Do the following if the PC does notsupport automatic CD-ROM startup:
1. Open the CD-ROM drive in
Explorer.
2. Double-click on the file“setup.exe”.
Note: Install using a user account withadministrator rights.

2

The installer preparation screen
appears. Please wait for a while.

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3

Click [Next] to proceed.

4

The License Agreement screen
appears.
By default, [I do not accept theterms in the license agreement] isselected.

5

Read and confirm the details
described thoroughly, select[I accept the terms in the license
agreement], then click [Next].

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6

Enter the user name andorganization, then click [Next].

7

Select the destination folder for
installing the software, then click[Next].

8

Check the setup type, destination
folder, and user information, thenclick [Install] to proceed if
everything is correct.
To edit the settings or information,
click [Back].
Click [Cancel] to exit the wizard.

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9

The device driver install screen
appears. Click [Next].

Device Driver InstallShield Wizard

Welcome to the Device Driver InstallShield
WizardThis wizard will install the software driver required tooperate a number of computer devices.

Click Next to continue.
< Back10

The installation complete screen
appears.
Check the details shown, then click[Complete].

Next >

CancelDevice Driver InstallShield Wizard

Completing the Device Driver InstallShield
WizardThe driver was successfully installed on this computer.
You can now connect a device to this computer. If yourdevice came with instructions, please read them first.

Driver Name

StatusReady to use< Back11

Program installation starts.

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Complete

Cancel12

Click [Finish] to close the window
once installation is complete.

13

Check to confirm that the operation
software has been installed on the
PC desktop (as shown on the right).

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3-3. Startup
The screen display examples used in the following description show those displayed when using the
GX-3R (sold separately).

3-3-1. Turning on the power
Product LED check locations

Lit steadily1

Blinking

Hold down the POWER button on the product for
at least one second to turn on the power.

GX-3R[SDM MODE] appears immediately after
communication starts.
SDM-3RThe CHARGE LED blinks green.

2

Mount the gas monitor (sold separately) with its
power turned off on the product.

GX-3R
―
―
SDM-3RThe CHARGE LED blinks orange.

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3

Closing the gas monitor cover on the productautomatically turns on the power for the gas
monitor (sold separately), then starts
communication with the product.

GX-3R
―
―
SDM-3RThe CHARGE LED blinks green.
4

Once communication is established, the gas
names and calibration concentrations set on thegas monitor (sold separately) are displayed on
the gas monitor (sold separately) LCD.

GX-3R

Displays the gas names and calibration
concentrations.
SDM-3R
――

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3-3-2. LED display list
The product LED indications are as follows:<BUMP LED/CAL LED/ALARM LED>
StatusPower on (for one second)
Previous results display
Button operation
Main screen
Set screen
Operation using the PC Download in progress
Controller Program
Download complete(optional)
Bump in progress
Bump/calibration
Calibration in progressin progress
Calibration in progress after bump failed

Alarm check inprogress

BlinkingorangeOFF

OrangeOrange

OFF

OFF

OFF
OFF

BlinkingorangeBlinkingorangeBlinkingorangeBump all successful (CAL = OFF after failure)

Green

OFF

Bump failed
Calibration all successful
Calibration failed
Bump all successful (CAL = ON after failure)
Bump failed, calibration all successful
Bump failed, calibration failed
Zero calibration failed (CAL = OFF after
failure)Communication error (CAL = OFF after
failure)Low flow rate (CAL = OFF after failure)

Red
OFF
OFF
Green
Red
Red
Blinking
red

OFF
Green
Red
OFF
Green
Red

Red

OFF

BlinkingorangeOFF

Blinking
green

OFF

OFF
Blinking
red

Zero calibration failed (CAL)OFF

Communication error (CAL)

OFF

Red

Low flow rate (CAL)OFF

Zero calibration failed (CAL = ON after failure)
Communication error (CAL = ON after failure,bump in progress)
Low flow rate (CAL = ON after failure, bump in
progress)
Communication error (CAL = ON after failure,calibration in progress)
Low flow rate (CAL = ON after failure,calibration in progress)
Alarm check in progress

Blinking
red

Blinking
green

Alarm check in progress (after bump)

BlinkingorangeBlinkingorangeAlarm check in progress (after bump)
Alarm check in progress (after calibration)

Alarm check successful
Alarm check failed* The BUMP and CAL LEDs blink rapidly for fast bump testing.
Alarm check results

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OFF

Red

Red

Blinking
green

Blinking
green

Red

Red

Blinking
green

Blinking
green

OFF

OFF

OFF

OFF

OFF
BlinkingorangeBlinkingorange(Bump/calibration results)(Bump/calibration results)(Alarm check results)

Bump/calibration
results(Error)Blinkingorange(Alarm check results)

Bump/calibration
results(Normal)

LED
BUMP
CAL
ALARM
OrangeOrangeOrange(Previous results)
OFF
OFF
OFF
OFF
OFF
OFF

BlinkingorangeBlinkingorangeBlinkingorangeBlinkingorangeGreenRed

<COPY LED>
StatusPower on (for one second)
No data
Small data volumes (Under 80 %: 1 - 159)
No USB flash drive(optional)
Large data volumes (80 % or more: 160 - 199)
Max data (100 %: 200)
No data
Small data volumes (Under 80 %: 1 - 159)
Large data volumes (80 % or more: 160 - 199)
USB flash drive(optional) inserted
Max data (100 %: 200)
Data copying in progress
Logger data download in progress

LED
OrangeOFF
Green
OrangeRed
OFF
Blinking green
Blinking orange
Blinking red
Red
Blinking orange<POWER LED>
StatusLED
OrangeRed
Blinking green
Blinking orange
Green
Red

Power on (for one second)
Self-diagnostic error
NormalCharging in progress
Charging complete
Charging error

29/60

3-4. Settings
Hold down the EDIT/ENTER button for at least three seconds with a gas monitor (sold separately)
mounted on the product to display various setting menus.
<Setting items>
BUMP (bump test settings)
AIR FLUSH TIMEGAS TIME 1 (gas suction time) (for inlet 1)

Duration for which air is aspirated
Time to aspirate gas for bump test
Time to aspirate gas for bump test（Not shown for 1
GAS TIME 2 (gas suction time) (for inlet 2)solenoid valve specification）
Time to aspirate gas for bump test（Not shown for 1
GAS TIME 3 (gas suction time) (for inlet 3)solenoid valve and 2 solenoid valves）
AIR PURGE TIME
Duration for air purging of the bump test gas
Threshold for determining pass/fail of a bump test
TOLERANCE
However, refer to the specific thresholds for fastbump tests.
AUTO CAL*
Sets automatic calibration to start if bump test fails.
Function for testing using a shorter gas suction time
(15 seconds) than normal bump testing. This
minimizes gas consumption if the sensor reacts
normally. The test is passed if the peak sensor value
is within the fast bump threshold (fixed).
<Thresholds (fixed)>
FAST BUMP• HC/CH4:
±40 %
• O2:
±10 %
• CO:
±30 %
• H2S:±40 %• CO2:±30 %• Other:±40 %Function for testing the LEDs and buzzer of the gas
monitor (sold separately) when bump testing has
ALARM CHECK
ended. Testing lights up the LEDs for several
seconds and sounds the buzzer, and the productassesses whether these are operating correctly.
Sets so that bump testing starts automatically when agas monitor (sold separately) for which the bump test
BUMP EXPIRED (run when bump expired)
has expired is connected.
Sets so that bump testing starts automatically when a
AUTO EXEC (run automatic bump test)
gas monitor (sold separately) is connected.
* The gas concentration for AUTO CAL must be set on the gas monitor (sold separately).

30/60

CAL (calibration settings)
AIR FLUSH TIMEGAS TIME 1（Gas suction time）（for inlet 1）
GAS TIME 2（Gas suction time）（for inlet 2）
GAS TIME 3（Gas suction time）（for inlet 3）
AIR PURGE TIME

ALARM CHECKCAL EXPIRED(run when calibration expired)
AUTO EXEC (run automatic calibration)

MANUAL CAL

Duration for which air is aspirated
Time to aspirate gas for gas calibration
Time to aspirate gas for gas calibration（Not shownfor 1 solenoid valve specification）
Time to aspirate gas for gas calibration（Not shownfor 1 solenoid valve and 2 solenoid valves）
Duration for air purging of the calibration gas
Function for testing the LEDs and buzzer of the gas
monitor (sold separately) when calibration has ended.
Testing lights up the LEDs for several seconds andsounds the buzzer, and the product assesses
whether these are operating correctly.
Sets so that calibration starts automatically when a gas
monitor (sold separately) for which the calibration has
expired is connected.
Sets so that calibration starts automatically when a gas
monitor (sold separately) is connected.
Sets so that calibration can be performed by pressing
the CAL button. If set to OFF, calibration will not be
performed even when the CAL button is pressed.
[AUTO CAL] in the BUMP settings will also be set to
OFF.

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3-4-1. Setting list
Defaultvalue
15
seconds
25
seconds
15
seconds
±50 %
ON
ON
ON

Settingrange
15 - 180
seconds
20 - 120seconds
5 - 180
seconds±10 - 50 %ON/OFF
ON/OFF
ON/OFF

OFF

ON/OFFOFF
15
seconds
60
seconds
15
seconds
ON

ON/OFF15 - 180
seconds
20 - 120seconds
5 - 180
seconds
ON/OFF

OFF

ON/OFF

OFF
ON

ON/OFF
ON/OFF

OFF/GAS 1/CHG 1--

OFF/GAS 1/GAS 2/CHG 2--

OFF/GAS 1/GAS 2/GAS 3/CHG 3--(Password protection ON/OFF)OFF(Password for setting menus)

0000

ON/OFF
Four-digit
numberMenu

Item
AIR FLUSH TIMEGAS TIME
AIR PURGE TIMEBUMP (bump test settings)

TOLERANCE
AUTO CAL*FAST BUMPALARM CHECKBUMP EXPIRED (run when bump
expired)AUTO EXEC (run automatic bump test)
AIR FLUSH TIMEGAS TIMECAL (calibration settings)

CYLINDER(cylinder
settings)

Single solenoid
valve
specifications
Two solenoid
valve
specifications
Three solenoid
valve
specifications

PASSWORD (password
settings)

AIR PURGE TIME
ALARM CHECKCAL EXPIRED (run when calibration
expired)AUTO EXEC (run automatic calibration)
MANUAL CAL* The gas concentration for AUTO CAL must be set on the gas monitor (sold separately).

NOTE With the default cylinder settings for domestic gas monitor models (sold separately), HC/CH4, O2,
and CO are assigned to GAS 1, H2S is assigned to GAS 2, and all other gases are assigned to GAS
3. If using a single gas mixture, H2S must be set to GAS 1.
 With ATEX/IECEx models, HC/CH4, O2, CO, and H2S are assigned to GAS 1, and all other gases
are assigned to GAS 2 and GAS 3.
 If GAS 2 or GAS 3 are not present due to the number of solenoid valves, these are assigned to
CHG 〇.
 For information on how to alter the cylinder settings, refer to ‘3-4-2. Cylinder settings’.

32/60

NOTE

 When using the buttons to operate the product (independently)
The following settings are retained when the product settings are altered, and are used the nexttime a gas monitor (sold separately) of the same model and the same combination of sensors isused, regardless of the gas monitor settings. There is no need to alter the settings each time.
Note that changing the settings on the product does not change the settings for the gas monitor
itself.

Menu
BUMP (bump test settings)
CAL (calibration settings)
CYLINDER (cylinder settings)
DATE (date and time settings)
PASSWORD (password settings)

Whether or notsetting ispossible on gas
monitor××

×

Source for settings
when this product isused

The productHowever, for items other than CYLINDER and DATE, which can be set on the gas monitor (forexample, calibration gas concentration), the gas monitor settings are used for bump testing andcalibration even when the product is used. Therefore, if bump test or calibration gas is used with adifferent concentration from the default setting, the setting must be changed on all gas monitor units(or using the PC Controller Program (optional)).
 Using the product together with the PC Controller Program (optional)
The ability to alter gas monitor (sold separately) and product settings using the PC Controller
Program (optional) is outlined in the following table.
Ability to alter
Ability to alter productSetting item
gas monitor
settings
settings
Items that can be altered by rightclicking the display icon, then selecting[Edit]*1
・ Cylinder settings〇〇
・ Bump test/calibration gas
concentration
・ Gas alarm setpoints, etc.
Items that can be altered by selecting[Config]*2 displayed at the top right of
the PC software screen.
××・ Bump test settings
・ Calibration settings, etc.
*1: Password entry is required to select [Edit]. Password (default): 1939
*2: Password entry is required to select [Config]. Password (default): ABCDE

33/60

3-4-2. Cylinder settings
These set the gas inlets used to feed in individual test gases. Configure the cylinder settings once
the gas monitor (sold separately) is mounted on the product.
* The cylinder settings are saved separately for each sensor combination and gas monitor (soldseparately). (up to 10 settings).
1

With the gas monitor (sold separately) mounted
on the product, hold down the EDIT/ENTER
button to display the setting screen.

GX-3R

2

Press the BUMP or CAL button to move theselection cursor to [CyLndEr] (Cylinder) on thesetting screen.
Press the EDIT/ENTER button to select thecylinder settings.

GX-3R

3

Set the cylinder number for each gas type.
Press the BUMP or CAL button to select the item
to be set, then press the EDIT/ENTER button toconfirm. The setting item blinks when confirmed.
The setting items are cycled through in thesequence HC/CH4→O2→H2S→CO.

GX-3R

4

Press the BUMP or CAL button while the setting
item is blinking to select the cylinder number.
Press the EDIT/ENTER button to confirm thesetting.
The cylinder numbers that can be selected willvary depending on the number of solenoid
valves inside the product.

GX-3R・ With one solenoid valve, OFF/GAS 1/CHG 1
can be selected.
* If CHG 1 is selected, the GAS 1 inlet forms
the inlet for gas replacement.
・ With two solenoid valves, OFF/GAS 1/GAS
2/CHG 2 can be selected.
* If CHG 2 is selected, the GAS 2 inlet forms
the inlet for gas replacement.
・ With three solenoid valves, OFF/GAS 1/GAS
2/GAS 3/CHG 3 can be selected.
* If CHG 3 is selected, the GAS 3 inlet forms
the inlet for gas replacement.

34/60* The different
screens displayed
for a product withthree solenoid
valves5

If set to OFF, gas will not be fed in.

GX-3R* In the case of a gas monitor (sold separately)containing a carbon monoxide sensor (ESRA1CP), disabling the CO setting will hide the CO
display on all screens other than the cylinder
setting screen.

6

Press the BUMP button on the setting screen forthe last gas type to save the settings.
[DECISION] is displayed on the gas monitor(sold separately) screen, and the display thenreturns to the setting screen.

GX-3R

7

Press the BUMP or CAL button to move theselection cursor to [ESCAPE] on the setting
screen.
Press the EDIT/ENTER button to return to themeasurement screen.

GX-3R

35/60

3-5. Operations using the product operation buttons
3-5-1. Bump test and calibration procedure
NOTE Bump testing and calibration can be canceled midway by holding down the BUMP button or CAL
button respectively for at least three seconds.
 Canceling during the initial air aspiration (AIR FLUSH) aborts the procedure immediately and thedisplay returns to the main screen. In this case, the canceled procedure is not recorded in the
product memory.
 Air aspiration (AIR PURGE) is performed if the procedure is canceled while gas is being aspirated.
[CANCEL] is displayed while air is being aspirated, and the result screen is displayed once the air
aspiration has ended.
 If at least one bump test or calibration has ended, the procedure is performed to the end, and theresults are displayed. In this case, the results are also stored in the internal memory.
 The number of gas inlets that can be used on the product varies depending on the number ofsolenoid valves (one to three) contained.
 On products containing one solenoid valve, the gas inlet is GAS 1 only. To feed in more than
one type of gas with this model, CHG must be set, and the gas connected to the gas inlet on
the product must be changed over manually.

Product LED check locations

Lit steadily1

Blinking

Hold down the POWER button on the product for
at least one second to turn on the power.

GX-3R[SDM MODE] appears immediately after
communication starts.
SDM-3RThe CHARGE LED blinks green.

36/60

2

Mount the gas monitor (sold separately) with its
power turned off on the product.

GX-3R
―
―
SDM-3RThe CHARGE LED blinks orange.
3

Closing the gas monitor cover on the productautomatically turns on the power for the gas
monitor (sold separately), then starts
communication with the product.

GX-3R
―
―
SDM-3RThe CHARGE LED blinks green.

4

Once communication is established, the gas
names and calibration concentrations set on thegas monitor (sold separately) are displayed on
the gas monitor (sold separately) LCD.

GX-3R

Displays the gas names and calibration
concentrations.
SDM-3R
―
―

37/60

5

Press the BUMP button to start bump testing andperform a bump test for all gas types.

GX-3R

The current concentration is displayed
while a bump test is in progress.
SDM-3R

The BUMP LED blinks orange.
6

Press the CAL button to start calibration andperform calibration for all gas types.
The current concentration is displayed whilecalibration is in progress.

GX-3R

The current concentration is displayed
while calibration is in progress.
SDM-3RThe CAL LED blinks orange.

Common details for bump testing and calibration
7

Air is aspirated for zero adjustment.
Zero adjustment is performed for all sensors
simultaneously.
* In the case of gas monitors with an O2 sensor,
air aspiration is extended for 40 seconds, after
the gas monitor (sold separately) is connected.

GX-3R
―
―
SDM-3R
―
―

38/60

8

9

Bump testing and calibration are performed in
the order set in the cylinder settings.

GX-3R

・ Adjustment is performed from the gas set for
GAS 1.

――

SDM-3R・ If set in CHG, the gas is exchanged before
bump testing and calibration.

―

The results are displayed.
(Bump test)

GX-3R: Concentration results―

GX-3R: Evaluation[P] is displayed if
successful, and [F] isdisplayed if failed.

Screens
displayedalternately

The results are displayedon the gas monitor (soldseparately) screen.

SDM-3R

The BUMP LED lights up green if all bump tests weresuccessful.
The BUMP LED lights up red if even one bump test failed.
10

The results are displayed.
(Calibration)

GX-3R: Evaluation[P] is displayed if
successful, and [F] isdisplayed if failed.

GX-3R: Concentration results

Screens
displayedalternately

The results are displayedon the gas monitor (soldseparately) screen.

SDM-3RThe CAL LED lights up green if all calibrations weresuccessful.
The CAL LED lights up red if even one calibration failed.
39/60

11

Press the BUMP button and EDIT/ENTER button
simultaneously to start the alarm check.

GX-3R
―
―
SDM-3RThe EDIT/ENTER LED blinks orange.
12

Once the alarm check ends, the result screen isdisplayed, and the LED indication changes fromblinking orange.
* The LED lights up green if all alarm checks
were successful.
The LED lights up red if even one alarm check
failed.

GX-3R[P] is displayed if successful, and [F] isdisplayed if failed.
SDM-3RThe EDIT/ENTER LED lights up green if all
alarm checks were successful.

3-5-2. Copying test/calibration results to a USB flash drive(optional)
The results of bump tests, calibration, and alarm checks performed on the product can be saved as atext file to a USB flash drive (optional).

NOTE





Up to 200 data items can be stored in the product.
If the product memory becomes full, the oldest data will be overwritten by new data.
Data is saved as text files (.txt) in the DAT folder.
The file names begin with “SDM3R”, and consist of the product serial number, suffixed by thedate of the last test or calibration performed.
Example: SDM3RTEST0000003180111.TXT→ Data for the last test or calibration performed on January 11, 2018 using the product with
serial number TEST0000003
 The COPY LED color varies depending on the amount of memory space available. For details, referto ‘3-3-2. LED display list’.

40/60

 USB flash drives with a built-in hub cannot be used.
 Data cannot be copied unless the USB flash drive (optional) has sufficient free space in whichto copy the saved data.

Product LED check locations

Lit steadily1

Blinking

Hold down the POWER button on the product for
at least one second to turn on the power.

SDM-3RThe CHARGE LED blinks green.

2

Insert the USB flash drive (optional) into the USB
port on the front of the product.

SDM-3RThe COPY LED blinks.

3

Hold down the COPY button on the product until
the COPY LED lights up red.

SDM-3R

The bump test, calibration, and alarm check datastored in the product is copied to the USB flash
drive (optional).
Once copying is complete, the COPY LED
returns to its previous state.
The COPY LED lights up.

NOTE Holding down the CAL/▲ button and COPY button together for at least three seconds after turningon the product power in step 1 clears all of the data inside the product. The COPY LED goes out
after the memory has been cleared.

41/60

<Example of recorded data>
・ Bump test
Model
Serial No
Station ID
User ID
SDM Model
SDM Serial No
Date Time
Item
Gas Name
Test Gas
Test Result
Pass/Fail?
Result Time1
Result Time2Result Time3
Result Time4

:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:

GX-3R
********************************
SDM-3RSDM-3R_20171227
2018/03/05
10:48:32
BUMP TEST
CH4(%LEL)O2(%)
H2S (ppm )CO (ppm )
50
12.0
25.0
50
49
12.0
25.0
10
PASS
PASS
PASS
FAIL
2018/03/05 10:49:33
2018/03/05 10:49:33
2018/03/05 10:50:03
2018/03/05 10:49:33

42/60

・ Calibration
Model
Serial No
Station ID
User ID
SDM Model
SDM Serial No
Date Time
Item
Gas Name
Full Scale
Cal GasBefore Cal
After Cal
Pass/Fail?
Result Time1
Result Time2Result Time3
Result Time4

:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:

GX-3R
********************************
SDM-3RSDM-3R_20171227
2018/03/06
10:48:32
CALIBREATION
CH4(%LEL)O2(%)
H2S (ppm )CO (ppm )
100
40.0
200.0
2000
50
12.0
25.0
50
45
11.0
30.0
55
50
12.0
30.0
55
PASS
PASS
FAIL
PASS
2018/03/05 10:49:33
2018/03/05 10:49:33
2018/03/05 10:50:03
2018/03/05 10:49:33

・ Alarm check
Model
Serial No
Station ID
User ID
SDM Model
SDM Serial No
Date Time
Item
Test Type
Pass/Fail?

:
:
:
:
:
:
:
:
:
:

GX-3R
********************************
SDM-3RSDM-3R_20171227
2018/03/06
10:48:32
ALARM CHECKLED
BUZZERPASS PASS

43/60

3-5-3. Downloading gas monitor (sold separately) logger data
Logger data saved in a gas monitor (sold separately) can be downloaded to a USB flash drive(optional). The downloaded data can then be imported into the PC Controller Program (optional).

NOTE The data is saved as binary files in the DAT folder.
 The PC Controller Program (optional) and a USB cable (Type-A male - Type-B male) (optional) are
required in order to import downloaded data. For information on how to install the PC Controller
Program (optional), refer to ‘3-2-7. Installing the PC Controller Program (optional)’.
 The file names are made up of the gas monitor (sold separately) model and the serial number.
Example: GX-3RPro860010016RK.DAT→ Logger data for the gas monitor (sold separately) model GX-3R Pro with serial number
860010016RK

1

Hold down the POWER button on the product for
at least one second to turn on the power.

SDM-3RThe CHARGE LED blinks green.

2

Insert the USB flash drive (optional) into the USB
port on the front of the product.

SDM-3RThe COPY LED blinks.

3

After the COPY LED lights up red, hold down the
COPY button on the product until the LED blinks
orange.

SDM-3R

The product downloads the gas monitor (soldseparately) logger data to the USB flash drive(optional).
Downloading can be canceled by holding down
the COPY button here.
Once downloading is complete, the gas monitor(sold separately) display returns to the previous
screen, and the COPY LED returns to its
previous state.

44/60

The COPY LED lights up.

3-6. Operating using the PC Controller Program(optional)
3-6-1. Bump test and calibration procedure
Calibration and other operations can be controlled from a PC by connecting the PC to the product.
Connecting to a PC allows a calibration certificate to be produced.

NOTE

 The PC Controller Program (optional) and a USB cable (Type-A male - Type-B male) (optional) are
required in order to control the product from a PC. For information on how to install the PC
Controller Program (optional), refer to ‘3-2-7. Installing the PC Controller Program (optional)’.
 Certain items in the PC Controller Program (optional) are password-protected. The password canbe changed using [Config] at the top right of the main screen.
Main screen → Right-click on the gas monitor icon → [Edit]: 1939 (default setting)Main screen → [Config] at top right: ABCDE (default setting)

Product LED check locations

Lit steadily1

Blinking

Hold down the POWER button on the product for at least one second to turn on the power.
PC screen

GX-3R
―
―
SDM-3R―The CHARGE LED blinks
green.

―

45/60

2

Start up the PC, then connect the product to the PC using the USB cable (optional).
* USB cable (optional): Use a Type-A male - Type-B male USB cable.
PC screen

GX-3R
―
―
SDM-3R―

Connect to the PC using a
USB cable (sold separately).

―

3

Double-click the icon on the PC to launch the maintenance software.
PC screen

GX-3R
―
―
SDM-3R

The software launches and docking with the product starts.

46/60

The CHARGE LED blinks
orange.

4

Mount the gas monitor (sold separately) with its power turned off on the product.
PC screen

GX-3R
―

―
Click to select thecheckbox for [OnlyConnected Units].

SDM-3R

Check the checkbox for [Only Connected Units] on the screen.

5

The BUMP and CAL LEDs
both light up orange.

The power for the gas monitor (sold separately) turns on, then communication with the productstarts.
PC screen

GX-3R[SDM MODE] appears
immediately after
communication starts.
SDM-3R

The icon is displayed for the model connected to the PC.

47/60

The CHARGE LED blinks
green.
The BUMP and CAL LEDs
both light up orange.

6

Once communication is established, the gas names and calibration concentrations set on the gas
monitor (sold separately) are displayed on the gas monitor (sold separately) LCD.
PC screen

GX-3R

Once communication isestablished, [TRANSMIT] isdisplayed.
SDM-3R

The icon is displayed for the model connected to the PC.

7

The CHARGE LED blinks
green.
The BUMP and CAL LEDs
both blink orange.

To check the expiration dates of the gas cylinders used, click [Cylinders] on the PC screen.
(This step may be skipped during the bump test and calibration procedure.)
PC screen

GX-3R

―
Click
[Cylinders].

―
SDM-3R―――

The names and expiration dates can be entered to check whether the cylinders in use are within their expiration
periods.
* Select the [Active] checkbox manually.
Expiration: Red:
The expiration date has passed.
Expiration: Orange: Less than ten days remain until the
expiration date.
Expiration: Orange: Ten days or more remain until the
expiration date.

48/60

8

To perform a bump test, click [Bump test] on the PC screen to display the GAS1 Selection screen.
PC screen

GX-3R

―

Click [Bumptest].

―
SDM-3R―――9

On the GAS1 Selection screen, select the gas to be fed in via GAS 1, then click [OK].
PC screen

GX-3R

―

―
SDM-3R
Click [OK].

―

―

―

49/60

10

The Gas order confirmation screen appears.
If other gases are also to be used, select the checkboxes under [GAS2] and [GAS3] as necessary
and select the corresponding gases.
PC screen

GX-3R

―

―
SDM-3R

Click [OK].

Clicking [OK] on the PC screen displays a confirmation window.
Click [OK] here too to start the bump test.

11

The BUMP LED blinks orange.

To perform calibration, click [Calibration] on the PC screen to display the GAS1 Selection screen.
PC screen

GX-3R

―

Click
[Calibration].

―SDM-3R

―

―

―

50/60

12

On the GAS1 Selection screen, select the gas to be fed in via GAS 1, then click [OK].
PC screen

GX-3R

―

―
SDM-3R
Click [OK].

―

―

―

13

The Gas order confirmation screen appears. If other gases are also to be used, select thecheckboxes under [GAS2] and [GAS3] as necessary and select the corresponding gases.
PC screen

GX-3R
―
―
SDM-3R

Click [OK].

Clicking [OK] on the PC screen displays a confirmation window.
Click [OK] here too to start calibration.

51/60

The CAL LED blinks orange.

14

The results are displayed. (Bump test)
PC screen

GX-3R

―

―
SDM-3R[BUMP PASS] is displayed if all bumptests were successful.

15

The BUMP LED lights up green if all bump tests weresuccessful.
* The LED lights up red if even one bump test failed.

The results are displayed. (Calibration)
PC screen

GX-3R

―

―
SDM-3R[CAL. PASS] is displayed if all
calibrations were successful.

The CAL LED lights up green if all calibrations weresuccessful.
* The LED lights up red if even one calibration failed.

52/60

16

When performing an alarm test, click [Alarm check] to display a confirmation window. Click [OK]here.
PC screen

GX-3R
―
―
Click
[Alarm check].

The EDIT/ENTER LED blinks
orange.

The alarm test starts.

17

SDM-3R

Once the alarm test ends, the result screen is displayed, and the product LED changes fromblinking orange to green.
PC screen

GX-3R―
The LED next to the screen
and the entire alarm windowlight up in red.
SDM-3R[ALARM CHECK PASS] is displayed if the alarm check was
successful.

53/60

The EDIT/ENTER LED lights
up green if the alarm check
was successful.
* The LED lights up red if thealarm check failed.

3-6-2. Creating a calibration certificate
Procedure1Turn on the product, then connect to thePC.

2Once the PC is connected, click [Logs] on
the screen.

3

On the PC screen, click the model number
for the gas monitor (sold separately) for
which a report is to be created.

4

On the PC screen, click the items([Calibration], [Bump test], [Alarm check])to be included in the report

PC screen display
―

54/60

5

Click the dates for the items to be includedin the report.
Displays the details of operations
performed on that date.

6

Select the details of operations performedon that date, then click [Certificate].

7

Check the details, then select the language(English, Portuguese, Japanese).
Click the printer icon to print using theprinter set as [Default] in Windows.

55/60

3-7. Turning off the power
NOTE

 The power can be turned off only when the product is not communicating with the gas monitor (soldseparately).
 The power for the gas monitor (sold separately) can be turned off as follows:<When operating the buttons on the product (independently)>
With the main screen or test result screen displayed, hold down the POWER button and
EDIT/ENTER button together on the product for three seconds to turn off the power for the gas
monitor (sold separately).
The power for the gas monitor (sold separately) also turns off automatically if no buttons areoperated for more than ten minutes with the main screen or test result screen displayed.
<When using the PC Controller Program (optional)>
Right-click the gas monitor (sold separately) icon in the PC Controller Program (optional), thenselect [Power off] to turn off the power for the gas monitor (sold separately).
The power for the gas monitor (sold separately) also turns off automatically if no operation is
performed on the main screen for one hour.

Hold down the POWER button on the product for three seconds to turn off the power for the product.

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4
4

Storage and Disposal

4-1. Procedures for storage or when not in use forextended periods
The product must be stored in the following environment:
・ At normal temperature and humidity in a location not exposed to direct sunlight・ In a location free of gases, solvents, and vapors
Store the product in its shipping carton if this has been retained.
If the shipping carton is not available, store away from dust and dirt.

4-2. Product disposal
Dispose of the product as industrial waste (incombustible) in accordance with local regulations.

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5
5

TroubleshootingThis troubleshooting chapter does not cover the causes of all possible product malfunctions. It
provides brief explanations to assist in determining the causes of common problems.
If you encounter symptoms not addressed here or if problems persist even after taking corrective
action, contact Riken Keiki.
Symptom<Display>

The power cannot
be turned on.

Abnormal operation
Air calibration is notpossible.

Cause

ActionThe AC power supply is notcorrectly connected or the AC
power supply voltage is below the
stipulated rating.
The POWER button was pressed
for too short or too long a time.
The battery compartment cover is
not closed completely.

Close the battery compartment covercompletely.

Effects of sudden static electricity
noise, etc.
Fresh air is not being suppliedaround the product.
The sensor sensitivity has
degraded.

Turn off the power, then turn it back onagain.

Water or oil has been aspirated into
the interior.
The filter is clogged.
Low flow rate alarmindication

Check the AC power supply socket
connection. Check to confirm that the AC
adapter is correctly connected to the
product. If no problem is identified,contact Riken Keiki.
To turn on the power, hold down the
POWER button until the buzzer blips, thenrelease the button.

The pump is deteriorated.

Stored for extended periods out ofuse (six months or more).

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Provide fresh air.
Contact Riken Keiki to request sensor
replacement.
Check the gas sampling tube to confirm it
is not damaged and that no oil or water
has been sucked in.
Check the filter mounting condition andwhether it is clogged or twisted.
Contact Riken Keiki to request pump
replacement.
If a low flow rate error is displayed, turnoff the power, then turn it back on again(restart). If the problem persists even after
repeating this process several times,
contact Riken Keiki to request pump
replacement.

Symptom<Display>Calibration is notpossible.
A calibration error
occurs.

Cause

ActionThe calibration gas is notconnected correctly to the gas inlet.

Check to confirm that the filter is fitted
correctly.
Check to confirm that the gas outlet piping
is not blocked. If no problem is identified,contact Riken Keiki.
Set the gas concentration for AUTO CAL
on the gas monitor (sold separately) tomatch the calibration gas used.
* This can be set only on the gas monitor(sold separately).
Remove the gas monitor from the product,
then check the alarm operation of thedetector on its own. If no problem is
identified, contact Riken Keiki.
Allow the product to fully adjust totemperatures within the operating
temperature range before recharging.

The gas outlet is blocked.

AUTO CAL is notpossible.
An error occurs.

The concentration of the calibration
gas used does not match the
AUTO CAL calibration gas
concentration.

Alarm check fails.

An error occurred in the alarm
display of the detector that fails inalarm check.

Charging error

The temperature is outside thepermissible charging temperature
range.

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6

6Product Specifications
6-1. Specifications list
Model
Compatible gas
monitors
Input power supply

SDM-3R

Memory capacity
Maximum data
storage capacity
Operatingtemperature range
Operating humidity
range
External
dimensions
Weight150 KB

GX-3R, GX-3R Pro
Main unit input: 6 V DC / Accessory AC adapter input: 100 - 240 V AC
Up to 200 items (bump test, calibration, alarm check)0 to +40 °C (no sudden fluctuations)
0 - 95 %RH (no condensation)
Approx. 130 mm (W) × 100 mm (H) × 250 mm (D) (excluding projections)
Approx. 800 g

6-2. Accessory list
Accessories
Part name
Cylindrical filter
Tube (approx. 40 mm)
AC adapter
Cross recessed head screwPart No.
4383 694395 4424 80
2594 0898 30
1955 1415 60

Optional accessories
Part name
Connecting fixture
Wall mounting fixture
Exhaust tube (2 m)
Exhaust tube (5 m)
AV jack cap (for LAN connector)
USB connector cap
AU plug
EU plug
UK plug
USB flash drive
USB cable
LAN cable
PC Controller Program (SW-SDM-3R(EX))

Part No.
4395 9166 40
4395 9165 70
4395 4442 104395 4444 60
0800 0941 50
0800 0942 202594 0932 90
2594 0933 60
2594 0934 30
2594 1084 30
2440 1702 00
2594 1081 00
9811 92

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Revision history
Issue

RevisionIssue date

0First issue

2019/3/15

1

Correct 7.8 and 9.2, Declaration of Conformity added

2019/7/29

2

Declaration of Conformity

2020/4/1

3

Declaration of Conformity

2021/11/9

4Complete revision (PT0-1674)

2022/1/25

5

Correction 「3-4.Settings」

2022/5/17

6Correction : CE Declaration of Conformity,
Addition : 1-4 Method of confirmation for CE/UKCA marking type UKCA
Declaration of Conformity

2022/7/11

7Correction : CE Declaration of Conformity

2024/5/31