Riken Keiki GX-Force User manual

PT0E-2100
Portable Gas Detector
GX-Force
Operating Manual
(PT0-210)
2-7-6 Azusawa, Itabashi-ku, Tokyo, 174-8744, Japan
Phone : [phone]
Fax : [phone]
E-mail : [e-mail]
Web site : https://www.rikenkeiki.co.jp/

Contents
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Contents
1 Product Overview ........................................................................................................................................... 4
1-1 Introduction ...............................................................................................................................................4
1-2 Intended use .............................................................................................................................................5
1-3 Checking the detection target gases and product type............................................................................5
1-4 DANGER, WARNING, CAUTION, and NOTE .........................................................................................6
1-5 Checking standards and explosion-proof specifications..........................................................................7
2 Important Safety Information .......................................................................................................................... 8
2-1 Danger information ...................................................................................................................................8
2-2 Warnings...................................................................................................................................................9
2-3 Precautions.............................................................................................................................................10
2-4 Safety information...................................................................................................................................12
3 Product Configuration................................................................................................................................... 15
3-1 Main unit and accessories......................................................................................................................15
3-1-1 Main unit ......................................................................................................................................... 15
3-1-2 Accessories..................................................................................................................................... 16
3-1-3 Optional accessories ...................................................................................................................... 16
3-2 Part names and functions.......................................................................................................................18
3-2-1 Main unit ......................................................................................................................................... 18
3-2-2 LCD display .................................................................................................................................... 20
4 Alarm Activation ............................................................................................................................................ 21
4-1 Gas alarm types .....................................................................................................................................21
4-2 Gas alarm setpoints................................................................................................................................21
4-3 Gas alarm patterns .................................................................................................................................22
4-4 Fault alarm patterns................................................................................................................................24
5 Usage Instructions........................................................................................................................................ 25
5-1 Usage note .............................................................................................................................................25
5-2 Preparations for startup..........................................................................................................................25
5-2-1 Charging the lithium ion battery...................................................................................................... 26
5-3 Startup procedure...................................................................................................................................28
5-3-1 Turning on the power...................................................................................................................... 28
5-3-2 Screen transition from powering on to measurement mode .......................................................... 29
5-4 Fresh air adjustment...............................................................................................................................32
5-5 Gas detection..........................................................................................................................................33
5-5-1 Basic operating flow ....................................................................................................................... 34
5-5-2 Measurement mode........................................................................................................................ 35
5-5-3 Snap log recording ......................................................................................................................... 37
5-6 Turning off the power..............................................................................................................................38
6 Setting Procedure......................................................................................................................................... 39
6-1 Display mode ..........................................................................................................................................39
6-1-1 Switching to display mode .............................................................................................................. 39
6-1-2 Contents displayed in display mode............................................................................................... 40
6-2 Display mode settings ............................................................................................................................42
6-2-1 Light on/off ...................................................................................................................................... 42
6-2-2 Clearing PEAK value display.......................................................................................................... 42
6-2-3 Combustible gas conversion setting .............................................................................................. 43
6-2-4 Adjustment data display.................................................................................................................. 46
6-2-5 Bump test data display ................................................................................................................... 47
6-2-6 Snap log data display ..................................................................................................................... 48
6-2-7 Alarm setpoint display..................................................................................................................... 49
6-3 User mode ..............................................................................................................................................50
6-3-1 Switching to user mode .................................................................................................................. 50
6-3-2 User mode setting items................................................................................................................. 51

Contents
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6-4 User mode settings.................................................................................................................................53
6-4-1 Bump test........................................................................................................................................ 53
6-4-2 Gas adjustment............................................................................................................................... 53
6-4-3 Adjustment expiration setting ......................................................................................................... 53
6-4-4 Bump test setting ............................................................................................................................ 57
6-4-5 Alarm setpoint setting ..................................................................................................................... 65
6-4-6 Lunch break on/off .......................................................................................................................... 68
6-4-7 Confirmation beep setting............................................................................................................... 69
6-4-8 LCD lighting time setting................................................................................................................. 72
6-4-9 Key operation tone on/off ............................................................................................................... 72
6-4-10 Display mode item display on/off.................................................................................................. 73
6-4-11 Zero suppression on/off ................................................................................................................ 74
6-4-12 Zero follower on/off....................................................................................................................... 75
6-4-13 Date and time setting.................................................................................................................... 76
6-4-14 Password setting .......................................................................................................................... 76
6-4-15 ROM/SUM display ........................................................................................................................ 77
7 Maintenance ................................................................................................................................................. 78
7-1 Maintenance intervals and items............................................................................................................78
7-1-1 Maintenance service....................................................................................................................... 79
7-2 Gas adjustment ......................................................................................................................................80
7-2-1 Preparation for gas adjustment ...................................................................................................... 80
7-2-2 Gas adjustment setting................................................................................................................... 82
7-2-3 Fresh air adjustment ....................................................................................................................... 84
7-2-4 AUTO adjustment ........................................................................................................................... 85
7-2-5 AUTO adjustment setting................................................................................................................ 88
7-3 Bump test................................................................................................................................................91
7-3-1 Performing bump test ..................................................................................................................... 91
7-4 Cleaning procedure ................................................................................................................................93
7-5 Parts replacement ..................................................................................................................................94
7-5-1 Periodic replacement parts............................................................................................................. 94
7-5-2 Filter replacement ........................................................................................................................... 95
8 Storage and Disposal ................................................................................................................................... 97
8-1 Procedures for storage or when not in use for extended periods..........................................................97
8-2 Procedures for use after storage............................................................................................................97
8-3 Product disposal .....................................................................................................................................98
9 Troubleshooting ............................................................................................................................................ 99
9-1 Product abnormalities.............................................................................................................................99
9-2 Reading abnormalities..........................................................................................................................102
10 Product Specifications.............................................................................................................................. 103
10-1 Specifications list ................................................................................................................................103
10-1-1 Common specifications .............................................................................................................. 103
10-1-2 Individual sensor specifications.................................................................................................. 105
10-2 Accessory list......................................................................................................................................106
11 Appendix ................................................................................................................................................... 107
11-1 Data logger function............................................................................................................................107
11-2 Methane gas sensitivity and response when using supplied or optional sampling probes ...............108
11-3 100 %LEL = ppm conversion list ........................................................................................................109
11-4 Product warranty.................................................................................................................................110
11-5 Sensor warranty..................................................................................................................................110

1 Product Overview 1-1 Introduction
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1
1 Product Overview
1-1 Introduction
Thank you for your purchase of the GX-Force Portable Gas Monitor (“the product” hereinafter).
Before using the product, confirm that this operating manual covers the model you purchased.
The product should be used only by fully-trained personnel.
The maintenance procedures described in this manual should be performed only by fully-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 handy place so that you can refer to it at any time.
Refer to the corresponding optional product manual when using the following optional product:
SW-GX-Force Data Logger Management Program Software Operating Manual (PT0E-214)
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 Product Overview 1-2 Intended use
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1-2 Intended use
The product is a gas detector designed to measure the concentrations of chemicals in the air in working
environments.
It measures concentrations of toxic gases, combustible gases, and oxygen in the atmosphere and issues
an alarm when preset alarm concentrations are reached, thereby alerting users to the hazards of
explosion, gas poisoning, and oxygen deficiency.
The product can be equipped with up to three types of sensors to enable detection of up to four different
gas types with a single unit.
1-3 Checking the detection target gases and product type
The product comes in several different types, depending on the combinations of detection target gases.
Check the specifications before use to confirm the correct gases will be detected in accordance with the
intended purpose.
The product type and detection target gas can be checked on the nameplate affixed to the side of the product.
The type is indicated by the suffix to the product model printed on the nameplate.
“H” (gas type is isobutane (HC)) or “M” (gas type is methane (CH4)) printed to the left of the QR code.
Side of the product
<List of detection target gases (installed sensor models) by type>
Type
Detection target gases (installed sensor models)
Combustible
gas
HC or CH4
(NCR-6309)
Oxygen
(ESR-X13P)
Carbon
monoxide/hydrogen
sulfide
(ESR-A1DP)
Hydrogen
sulfide
(ESR-A13i)
Carbon
monoxide
(ESR-A13P)
Carbon
monoxide
(ESR-A1CP)*
Type A 〇〇〇
Type B 〇〇〇
Type C 〇〇〇
Type CH 〇〇〇
Type D 〇〇
* The carbon monoxide sensor (ESR-A1CP) includes a correction function to reduce hydrogen interference. This
function works for hydrogen concentrations up to 2,000 ppm.
Product type
Example nameplate
Combustible gas sensor gas type
・Isobutane (HC): H
・Methane (CH4): M
2018
2010

1 Product Overview 1-4 DANGER, WARNING, CAUTION, and NOTE
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1-4 DANGER, WARNING, CAUTION, and NOTE
This operating manual uses the following categories to indicate potential damage/hazards if the user
disregards the information provided and uses the product incorrectly:
DANGER This indicates situations in which improper handling may result in fatal or
serious injury or significant property damage.
WARNING This indicates situations in which improper handling may result in serious
injury or significant property damage.
CAUTION This indicates situations in which improper handling may result in minor injury
or minor property damage.
Additionally, usage recommendations are indicated as follows:
NOTE This indicates items that will be helpful to know when using the product.

1 Product Overview 1-5 Checking standards and explosion-proof specifications
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1-5 Checking standards and explosion-proof specifications
The product specifications will vary depending on the specific standards and explosion-proof certification.
Check the actual product specifications before use. For CE/UKCA marking models, refer to the
‘Declaration of Conformity’ at the end of this operating manual.
Check the affixed nameplate for product specifications.
Typical nameplate for Japan EX specifications Typical nameplate for ATEX/UKEX/IECEx
specifications
Type
examination
certificate
marking
Ex marking
CE marking
UKCA marking

2 Important Safety Information 2-1 Danger information
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2
2 Important Safety
Information
To maintain the performance of the product and to ensure safe use, always observe the following
DANGER, WARNING, and CAUTION instructions.
2-1 Danger information
DANGER
Explosion-proofing
Do not modify or alter the circuits or configuration.
When measuring oxygen concentrations, measure only mixtures of air and
combustible gas or toxic gas.
Do not use the oxygen sensor to detect leaks of combustible or toxic gases.
When using the product in hazardous areas, the following precautions must be
observed to safeguard against static electricity hazards:
①Wear anti-static clothing and conductive shoes (anti-static work shoes).
②When using the product indoors, stand on a conductive work floor (with a
leakage resistance of 10 MΩor less).
The ratings are as follows:
Power supply battery pack (BP-Force): 3.6 V DC, 200 mAh
Battery charging contact allowable voltage: 6.0 V DC (with SELV power supply only)
Ambient temperature: -20 °C - +60 °C
(Ambient temperature refers to the temperature range in which the explosion-proof performance
can be maintained. It does not refer to the temperature range in which product performance is
guaranteed. For information on the operating temperature range, refer to ‘10-1 Specifications list’.)
Usage
If measuring inside manholes or enclosed spaces, never lean over or look into the manhole or
enclosed space. There is a danger that oxygen-deficient air or other gases may be discharged from
such locations.
Main unit

2 Important Safety Information 2-2 Warnings
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2-2 Warnings
WARNING
If an abnormality occurs
Contact Riken Keiki immediately.
Visit our website for information on the nearest Riken Keiki office.
Website: https://www.rikenkeiki.co.jp/
Sensor handling
Never attempt to disassemble the electrochemical type sensor inside the product. Contact with the
electrolyte inside the sensor may result in skin inflammation. Contact with eyes may result in
blindness. Contact with clothing may result in discoloration or damage to the fabric.
If contact occurs, rinse the area immediately with plenty of water.
Do not use any gas other than nitrogen as the balance gas when adjusting the oxygen sensor.
Fresh air adjustment in surrounding atmosphere
When fresh air adjustment is performed in the atmosphere, check the atmosphere for freshness
before starting. The presence of interference gases will make it impossible to adjust the product
correctly, resulting in the danger of erroneous detection when actual gas leaks occur.
Action when a gas alarm occurs
A gas alarm indicates an extreme hazard. The user must take appropriate action after taking
appropriate steps to ensure safety.
Battery level check
Check battery levels before using the product. The battery may be depleted when the product is
used for the first time or after extended periods without use. Charge the battery before use.
If a low battery voltage alarm occurs, gas cannot be detected. If the alarm is issued during use, turn
off the power and promptly charge the battery in a safe place.
Miscellaneous
Do not dispose of the product into fire.
Do not attempt to wash the product, either in a washing machine or an ultrasonic cleaning machine.
Do not block the buzzer sound opening. Doing so will muffle or silence the audible warning.
There is a danger that oxygen-deficient air or other gases may be discharged from enclosed
locations. Never lean over or look inside openings.

2 Important Safety Information 2-3 Precautions
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2-3 Precautions
CAUTION
Do not use the product in locations where it may be exposed to oil or chemicals, etc.
・Avoid using the product in locations where it may be splashed with oil, chemicals, or other liquids.
・Do not place the product in locations where water or dirt accumulates. Placing the product in
such locations may cause malfunction due to water or dirt ingress into the gas inlet or buzzer
sound opening.
The gas inlet and outlet are not waterproof. Take care to prevent water such as rainwater from
entering these parts. Failure to do so may prevent gas detection.
If the product has been exposed to water or dirt, remove any remaining water and dirt, and adjust
as specified to confirm that it operates correctly.
Do not use the product in locations outside the operating temperature range.
・The operating temperature range for the product is as follows. Avoid using the product at
temperatures outside the operating range.
Continuous use environment: -20 °C - +50 °C
Temporary use environment: -40 °C - +60 °C
・Fully charge the battery before using the product on the lower temperature side of thetemporary
use environment temperature range (-40 °C - -20 °C).
・Avoid using for extended periods in locations exposed to direct sunlight.
・Avoid storing the product inside parked vehicles in hot weather.
To prevent condensation within the product, adhere to the operating humidity range and avoid use
under conditions in which condensation may form.
Condensation forming inside the product may cause clogging or gas adsorption, which may prevent
accurate gas detection. In addition to the usage environment, carefully monitor the temperature and
humidity of the sampling point to prevent condensation forming inside the product.
Do not use walkie-talkies near the product.
・Radio waves from walkie-talkies or other radio wave transmitting devices near the product may
affect readings. If walkie-talkies or other radio wave transmitting devices are used, these must be
used away from the product where they do not affect operation.
・Avoid using the product close to devices that emit strong electromagnetic radiation (e.g., high
frequency or high voltage devices).
Keep the product away from magnetic fields.
Magnetic fields may cause the product to fail or malfunction. If the product does not operate
correctly, use it away from magnetic fields.
Verify that the operation status display is blinking before using the product.
If the operation status display is not blinking, gas cannot be detected properly.
Sensors
Note that if combustible gas sensors are used in an environment where silicone compounds,
halides, high-concentration sulfides, or high-concentration solvent gases are present, sensor life
may be reduced, sensitivity to combustible gases may deteriorate, and accurate readings may not
be obtained.
If use in such environments is unavoidable, use for the shortest possible time and allow the product
to suck in fresh air afterward. Confirm that the reading returns to normal and is stabilized.
The combustible gas sensor (%LEL) in the product may cause readings to rise for gases like argon,
carbon dioxide, and nitrogen.
An oxygen concentration higher than a certain level is required in order for the combustible gas
sensor (%LEL) in the product to correctly detect gases and display concentrations.
Do not expose the product to sudden pressure fluctuations.
Oxygen readings will vary temporarily, preventing accurate measurement.
Do not use any gas other than nitrogen as the balance gas when adjusting the oxygen sensor.
Otherwise, oxygen reading errors will increase, preventing accurate measurement.

2 Important Safety Information 2-3 Precautions
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CAUTION
Be sure to perform regular maintenance.
The product must be maintained regularly to ensure safety. Continuing to use the product without
maintaining it will result in sensor sensitivity variations, preventing accurate gas detection.
Miscellaneous
Pressing buttons unnecessarily may change the settings, preventing alarms from activating
correctly. Avoid performing any operations not described in this operating manual.
Do not drop the product or subject it to impact. Doing so may degrade explosion-proof, waterproof,
dustproof, and gas detection performance.
An abnormality alarm may be triggered if the product is subjected to strong impact. If this occurs,
turn the power off and then back on again, then perform a bump test to confirm that the product
functions correctly before use.
The impact resistance of the product is not a guarantee against damage or failure. Dropping the
product may affect readings. We recommend performing inspection including gas adjustment if it
has been dropped.
Do not use the product while charging it.
Do not prod the buzzer sound opening with sharp objects. Doing so may result in ingress of water
or foreign matter, resulting in malfunctions or damage to the product.
Do not block the buzzer sound opening with tape or other objects. This will prevent adjustment of
the internal pressure of the product, which may result in malfunctions.
Do not remove the panel sheet on the LCD display. Doing so will impair waterproof and dustproof
performance.
Usage
The operating time will be reduced due to battery performance in cold environments.
The response of the LCD display may slow at low temperatures.
Always perform fresh air adjustment under conditions of pressure, temperature, and humidity similar
to those in the operating environment and in fresh air.
Wait for the reading to stabilize before performing fresh air adjustment.
If there is a temperature difference of 15 °C or more between the storage and usage locations,
allow the product to stand and acclimatize for about 10 minutes in an environment similar to the
usage location before turning on the power and performing fresh air adjustment in fresh air.
When wiping the product clean, do not splash water on it or use organic solvents like alcohol and
benzine. Doing so may discolor or damage the surfaces of the product.
Even if you do not intend to use the product for extended periods, turn the power on at least once
every six months to check that the pump operates normally and gas is sucked in (by running the
product for approximately three minutes). Grease inside the pump motor may solidify and prevent
operation if the product is not operated for extended periods.
After a period of extended storage, be sure to perform gas adjustment before resuming use. For
information on readjustment including gas adjustment, please contact Riken Keiki.

2 Important Safety Information 2-4 Safety information
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2-4 Safety information
Observe the following points to ensure performance as an explosion-proof product:
Product overview
The GX-Force can be equipped with up to three types of sensors to detect up to four different gas types.
The GX-Force can be used to detect combustible gases (%LEL), oxygen (O2), hydrogen sulfide (H2S),
and carbon monoxide (CO).
Measurement results are displayed on the LCD. Gas alarms are indicated by LEDs and the buzzer
based on the settings.
Power source
The GX-Force is powered by an internal rechargeable lithium ion battery. (The rechargeable battery
cannot be replaced by the customer.)
Charge the battery using the dedicated AC adapter, an IEC 60950 certified SELV power supply, or IEC
62368-1 certified ES1 power supply.
Make sure that the maximum voltage from the charger does not exceed 6.0 V DC.
<Japan EX specifications>
Explosion-proof construction: Intrinsically safe explosion-proof construction, flame-proof
enclosure
Explosion-proof class: Ex da ia IIC Ta Ga
Ambient temperature*: -20 °C - +60 °C
Ambient temperature (when charging): +10 °C - +40 °C
Ratings: Power supply: 3.6 V DC, 200 mA
Battery pack (BP-Force)
Battery charging contact allowable voltage: 6.0 V DC
Complies with the following guidelines: JNIOSH-TR-46-1:2020
JNIOSH-TR-46-2:2018
* Ambient temperature refers to the temperature range in which the explosion-proof performance can be
maintained. It does not refer to the temperature range in which product performance is guaranteed.
For information on the operating temperature range, refer to ‘10-1 Specifications list’.
DANGER
Charge the battery using the provided charger in a safe place.
Charge the battery at ambient temperatures between +10 °C and +40 °C.
WARNING
Do not modify or alter the circuits or configuration.
Do not disassemble or modify the product.
In this product, only the NCR-6309 combustible gas sensor has a flame-proof enclosure.
This product is an explosion-proof product. Do not disassemble or modify any parts other than
those specified.
(This includes the prohibition of repairs to flame-proof joints.)
This product contains a sensor with a flame-proof enclosure. Explosion-proof performance may be
impaired if not assembled as specified. When replacing the filter, use the dedicated components
and mount correctly with the correct torque.
If the housing becomes damaged, stop using the product and have it repaired.
Do not use with the sensor exposed to ultraviolet light or insufficiently shaded.

2 Important Safety Information 2-4 Safety information
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Do not charge in hazardous areas.
Charge the battery using the dedicated AC adapter, an IEC 60950 certified SELV power supply, or
IEC 62368-1 certified ES1 power supply.
When measuring oxygen concentrations, use the product only to detect leaks of mixtures of air and
combustible gas or toxic gas.
When carrying and using the product in hazardous areas, the following general precautions must be
observed to safeguard against static electricity hazards:
①Wear anti-static clothing and conductive shoes (anti-static work shoes).
②When using the product indoors, stand on a conductive work floor (with a leakage resistance of
10 MΩor less).
<ATEX/UKEX/IECEx specifications>
Explosion-proof
construction
Intrinsically safe explosion-proof construction, flame-proof enclosure
Explosion-proof
class
Ex da ia IIC T4 Ga
II 1 G Ex da ia IIC T4 Ga
Ambient
temperature -20 °C - +60 °C
Ambient
temperature
(when charging)
+10 °C - +40 °C
Electrical
specifications
・BP-Force is specified for the rechargeable lithium ion battery.
・Uses one Panasonic NCR18650GA.
・Charge the battery using the dedicated AC adapter, an IEC 60950 certified SELV
power supply, or IEC 62368-1 certified ES1 power supply.
Make sure that the maximum voltage from the charger does not exceed 6.0 V DC.
Certificate
numbers
・IECEx: IECEx DNV 22.0029X
・ATEX: DNV 22 ATEX 05201X
・UK Type Examination Certificate: DNV 22 UKEX 55041X
Applicable
standards
• IEC 60079-0:2017
• IEC 60079-1:2014-06
• IEC 60079-11:2011
• EN IEC 60079-0:2018
• EN 60079-1:2014
• EN 60079-11:2012
・BS EN IEC 60079-0:2018
・BS EN 60079-1:2014
・BS EN 60079-11:2012
WARNING
Do not disassemble or modify the product.
Only the NCR-6309 combustible gas sensor has a flame-proof construction in the product.
The product is an explosion-proof device. Do not disassemble or modify components other than
those stipulated.
The product incorporates a flame-proof construction sensor. Explosion-proof performance may be
impaired if it has not been assembled as specified. When replacing the filter, mount the specified
parts using the correct torque.
If the casing is damaged, stop using the product. Have it repaired before resuming use.
Do not use the product with the sensors inadequately shielded or exposed to ultraviolet light.
Do not charge in hazardous areas.
Charge the battery using the dedicated AC adapter, an IEC 60950 certified SELV power supply, or
IEC 62368-1 certified ES1 power supply.

2 Important Safety Information 2-4 Safety information
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Product code
INST. No. 00 0000 0000 00
ABCDE
A: Year of manufacture (0 - 9)
B: Month of manufacture (1 - 9 for Jan. - Sep.; XYZ for Oct., Nov., Dec.)
C: Manufacturing lot
D: Serial number
E: Factory code
2-7-6 Azusawa, Itabashi-ku, Tokyo, 174-8744, Japan
Phone:[phone]
Fax: [phone]
E-mail:[e-mail]
Website: https://www.rikenkeiki.co.jp

3 Product Configuration 3-1 Main unit and accessories
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3
3 Product Configuration
3-1 Main unit and accessories
Open the box and packaging and inspect the product and accessories.
If anything is missing, contact Riken Keiki.
3-1-1 Main unit
For detailed information on the names and functions of product parts and the LCD display, refer to ‘3-2
Part names and functions’.
GX-Force main unit

3 Product Configuration 3-1 Main unit and accessories
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3-1-2 Accessories
<Japan EX specifications>
AC adapter
×1
Tapered nozzle
×1
Hand strap
×1
Product
warranty Warranty Operating Manual
< ATEX/UKEX/IECEx specifications>
Product warranty Sensor warranty Operating Manual
3-1-3 Optional accessories
AC adapter
×1
Tapered nozzle
×1
Hand strap
×1
Belt clip
×1
・Includes two screws for attachment to the
rear of the main unit.
Gas sampling rod
Gas sampling tube
×1 each
・The gas sampling rod and gas sampling
tube are used together.
Float-type gas collector
×1
・The tube is about 8 m long.

3 Product Configuration 3-1 Main unit and accessories
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Two-stage gas
sampling rod
×1
・The sampling rod length is as follows:
Total length: Approx. 70 cm
Reduced length: Approx. 40 cm
USB cable
Type-A - Type-C
×1
・For connecting to the PC when using the
data logger management program
・The cable is 1 m long.
Data logger
management program
CD- ROM
(SW-GX-Force)
×1
Various filters, etc.

3 Product Configuration 3-2 Part names and functions
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3-2 Part names and functions
This section describes the names and functions of the various parts of the main unit and the LCD display.
3-2-1 Main unit
Name Main function
(1) LCD display Displays the gas concentration and other information.
(2) POWER/MODE button Turns the power on and off.
Used to confirm settings when in display mode and user mode
(3) AIR button Performs fresh air adjustment in measurement mode.
Used to select functions when in display mode and user mode
(1)
(3)
(7)
(2)
(6)
(9)
(8)
(10)
(11)
(5)
(4)
(4)
(12)

3 Product Configuration 3-2 Part names and functions
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Name Main function
(4) Alarm LED arrays
Flashes in red when an alarm occurs.
The LEDs on the left and right also flash red if measurement is
not currently underway.
(5) Light Lights up when the light is turned on.
(6) Filter case Contains a dust filter.
(Do not open except when inspecting or replacing the filter.)
(7) Buzzer sound opening Emits operating and alarm sounds. (Do not block.)
(8) USB protective cover Detach the cover to connect the AC adapter when charging.
Connect a USB cable to connect to a PC.
(9) Gas inlet Connector for attaching tapered nozzle
(10) Gas outlet Outlet for gas drawn in (Do not block.)
(11) Strap holes
(two locations)
Holes for attaching the hand strap. There are two holes on each
side (left and right).
(12) Charging indicator lamp
Lights up in green when the charger is connected, and lights up in
orange when charging starts.
Lights up in green once charging is completed.
CAUTION
Do not prod the buzzer sound opening with sharp objects. Doing so may result in ingress of water
or foreign matter, resulting in malfunctions or damage to the product.
Do not remove the panel sheet on the LCD display. Doing so will impair waterproof and dustproof
performance.
Do not block the buzzer sound opening with tape or other objects. This will prevent adjustment of
the internal pressure of the product, which may result in malfunctions.
Do not block the gas outlet or subject it to force.
Before using the gas sampling rod and various gas sampling tubes, check to confirm that the tubes
are free of damage and provide appropriate flow rates.
Use of the gas sampling rod and various gas sampling tubes will create a response delay of up to
three seconds per meter of flow length.
NOTE
In this operating manual, the POWER/MODE button is described as follows:
・When turning power on/off: POWER button
・When confirming settings: MODE button

3 Product Configuration 3-2 Part names and functions
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3-2-2 LCD display
Name Main function
(1) Operating status icon Indicates the product operating status. Blinks when normal.
(2) Clock display Displays the time.
(3) Combustible gas
concentration Displays gas concentrations.
The concentration reading is updated every five seconds for
combustible gases.
The concentration reading is updated every second for gases other
than combustible gases.
(4) Oxygen concentration
(5) Carbon monoxide
concentration
(6) Hydrogen sulfide
concentration
(7) Battery level icon Indicates battery levels.
See NOTE below for a guide to battery level indications.
(8) Pump operating status
icon Indicates suction status. Rotates when normal.
NOTE
Approximate battery levels are indicated as follows:
: Sufficient
: Low
: Needs charging
The battery level icon will blink if the battery level drops even further.
If the bump test expiration display setting is enabled, [✔] is displayed
in the upper left of the LCD until the bump test expiration date. For
information on the bump test expiration display setting, refer to ‘6-4-4
Bump test setting’.
[M] is displayed in the upper left of the LCD when user mode is
selected.
(1)
(3)
(5)
(2)
(7)
(4)
(6)
(8)