Riken Keiki GW-3 Operation Manual
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Riken Keiki GW-3 Operation Manual

Portable gas monitor
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PT0E-1887
Portable Gas Monitor
GW-3
Operation Manual
(PT0-188)
2-7-6 Azusawa, Itabashi-ku, Tokyo, 174-8744, Japan
Website: https://www.rikenkeiki.co.jp/

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  • Page 1 PT0E-1887 Portable Gas Monitor GW-3 Operation Manual (PT0-188) 2-7-6 Azusawa, Itabashi-ku, Tokyo, 174-8744, Japan Website: https://www.rikenkeiki.co.jp/...

  • Page 2: Table Of Contents

    Contents Contents 1. Product Overview ................................4 1-1. Introduction ................................4 1-2. Intended use .................................6 1-3. DANGER, WARNING, CAUTION, and NOTE .....................7 1-4. Checking standards and explosion-proof specifications ..................8 2. Important Safety Information ............................9 2-1. Danger information ...............................9 2-2. Warning information ............................11 2-3.
  • Page 3 Contents 5-5. Measuring gas concentration ..........................46 5-6. Checking the gas concentration, alarm setpoints, etc. (display mode) ............. 48 5-6-1. Procedure for displaying display mode ....................48 5-6-2. Items displayed in display mode ......................49 5-7. Turning off the power ............................54 6.

  • Page 4: Product Overview

    The contents of this manual are subject to change without notice to allow product improvements. Riken Keiki accepts no liability for accidents or damage resulting from use of the product, whether within or outside the warranty period.

  • Page 7: Danger, Warning, Caution, And Note

    1. Product Overview 1-3. DANGER, WARNING, CAUTION, and NOTE 1-3. 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: This indicates situations in which improper handling may result in fatal or serious injury DANGER or significant property damage.

  • Page 9: Important Safety Information

    2. Important Safety Information 2-1. Danger information 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 circuitry or configuration. ...

  • Page 11: Warning Information

    2. Important Safety Information 2-2. Warning information 2-2. Warning information WARNING Fresh air adjustment in the atmosphere  When air calibration is performed in the atmosphere, check the atmosphere for freshness before starting. The presence of interference gases will prevent proper air calibration. The presence of interference gases is also extremely dangerous because the product may not detect actual gas leaks correctly.
  • Page 13 2. Important Safety Information 2-2. Warning information WARNING Handling the calibration gas  The carbon monoxide sensor with hydrogen compensation must be calibrated separately for carbon monoxide and hydrogen.  If hydrogen sensitivity calibration is not performed, carbon monoxide readings may be inaccurate due to hydrogen interference.

  • Page 14: Caution Information

    <Continuous use enironment> Temperature: −20 °C to +50 °C Humidity: 10 %RH to 90 %RH GW-3 (OX), GW-3 (HS), GW-3 (CO), GW-3 (C-), GW-3 (CX)： <Continuous use environment> Temperature: −20 °C to +50 °C Humidity: 10 %RH to 90 %RH <Temporary use environment>...
  • Page 15 2. Important Safety Information 2-3. Caution information  Note that humidity may affect readings even when humidity is within the specified range. Air calibration  Air calibrate the product using fresh air at pressures, temperatures, and humidity levels similar to the actual usage environment.

  • Page 18: Safety Information

    2. Important Safety Information 2-4. Safety information 2-4. Safety information This gas monitor is portable and is available as a single-gas monitor or a two-gas monitor. A single CR2450 button-type lithium battery is used for power supply. Replace the battery in a safe place. <Specification for safety>...
  • Page 19 2. Important Safety Information 2-4. Safety information <List of standards>  IEC 60079-0:2017 ・ EN60079-0:2012+A11:2013  IEC 60079-11:2011 ・ EN60079-0:2018 ・ EN60079-11:2012 <Guidelines>  JNIOSH-TR-46-1:2015  JNIOSH-TR-46-6:2015 19 / 73...
  • Page 20 2. Important Safety Information 2-4. Safety information WARNING  Do not replace batteries in hazardous location.  Do not disassemble or alter the product.  Use only one CR2450 lithium manganse dioxide battery by Murata, CR2450B by Sony, or DL2450 by Duracell (CR2450 by Murata only for Japan models).

  • Page 22: Product Configuration

    <Optional items (sold separately)>  Dust filter  Filters GW-3 (OX), GW-3 (HS) : Humidity control filter CF-A13i-1 GW-3 (CO), GW-3 (C-), GW-3 (CX) : Interference gas removal filter CF-6280  Leather case  Heat-resistant case  Arm band (belt)  Calibration adapter ...

  • Page 26: Inserting The Battery

    3. Product Configuration 3-3. Inserting the battery 3-3. Inserting the battery When using the product for the first time or when battery levels are low, install a new (CR2450) battery. 1 Confirm that the power for the product is turned off. If the power is on, hold down the POWER/MODE button for at least three seconds to turn off the power.

  • Page 33: Alarm Functions

    4. Alarm Functions 4-2. Gas alarm activation <Gas alarm display> When a gas alarm occurs, the alarm type is indicated on the LCD display and the corresponding gas concentration display blinks. Display example: Carbon monoxide (CO) concentration: 200 ppm when the third alarm is triggered NOTE ...

  • Page 36: Usage Instrucions

    5. Usage Instrucions 5-1. Usage note Usage Instrucions 5-1. Usage note Observe all usage precautions when using the product. Failure to comply with these precautions may result in failure of the product or inability to perform normal gas measurement. 5-2. Preparing startup Check the following before starting gas detection: ...

  • Page 39: Turning On The Power

    *1 Japan models: Calibration notification display/Export models: Calibration expiration display *2 GW-3 (HS): TWA alarm setpoint GW-3 (CO), GW-3 (C-): Japan models: Integrated alarm setpoint/Export models: TWA alarm setpoint 39 / 73...

  • Page 44: Performing Air Calibration

    5. Usage Instrucions 5-4. Performing air calibration CAUTION  Perform air calibration in an environment that meets all of the following conditions: ・ Pressures, temperatures, and humidity levels are similar to pressures, temperatures, and humidity levels in the actual usage environment. ・...
  • Page 45 5. Usage Instrucions 5-4. Performing air calibration NOTE  If air calibration fails, [FAIL AIR] will appear. Air calibration will not be performed. Press the POWER/MODE button to reset the fault alarm (calibration abnormality). Resetting the alarm displays the value before air calibration. ...

  • Page 47: Measuring Gas Concentration

    5. Usage Instrucions 5-5. Measuring gas concentration NOTE  When the confirmation beep has been set, the buzzer sounds at the set interval during measurement. (Refer to ‘6-7. Confirmation beep setting (BEEP)’ in the Technical Manual.)  The gas concentration alarm setpoints can be checked in display mode. (Refer to ‘5-6. Checking the gas concentration, alarm setpoints, etc.

  • Page 48: Checking The Gas Concentration, Alarm Setpoints, Etc. (Display Mode)

    5. Usage Instrucions 5-6. Checking the gas concentration, alarm setpoints, etc. (display mode) 5-6. Checking the gas concentration, alarm setpoints, etc. (display mode) Check measurement results. Switch to display mode to check items like maximum concentration of gas detected, alarm setpoints, date and time, and temperature.
  • Page 51 40 hours per week. The value is refreshed every 60 seconds. * GW-3 (HS): TWA display * GW-3 (CO), GW-3 (C-), GW-3 (CX): Japan models: Integrated (A-1H) display/ Export models: TWA display Displays the current time and date.

  • Page 54: Turning Off The Power

    5. Usage Instrucions 5-7. Turning off the power 5-7. Turning off the power CAUTION  If the concentration display does not return to [0ppm] (or [20.9%] for oxygen) when you turn the power off, allow the product to stand in fresh air. Confirm that the display returns to [0ppm] (or [20.9%] for oxygen) before turning the power off.

  • Page 57: User Mode Settings

    6. User Mode Settings 6-1. User mode setting procedure <Ending user mode> 1 When the settings are complete, press the AIR button several times to select [START], then press the POWER/MODE button. User mode ends. The product will return to measurement mode after performing the same operation as when the power is turned on.

  • Page 59: User Mode Setting Items

    . You can also return the alarm setpoints to their setting (ALARM-P) default settings. *1 The following alarm setpoints can be set: ・ GW-3 (O2), GW-3 (OX): First to third alarm setpoints ・ GW-3 (CO), GW-3 (C-), GW-3 (CX): First to third alarm setpoints, STEL alarm setpoint, integrated alarm setpoint or TWA alarm setpoint ・...
  • Page 60 6. User Mode Settings 6-2. User mode setting items Confirmation beep Toggle the confirmation beep ON/OFF, set its behavior, and set setting intervals. (BEEP) This function provides an audible indication of whether the product is operating normally. If the bump test expiration setting (BP.RMDR) or the calibration expiration setting (CAL.RMDR) is ON, you can have this function operate when the expiration date is reached.
  • Page 61 6. User Mode Settings 6-2. User mode setting items Quick calibration Set the time for quick calibration. time setting The quick calibration function performs AUTO calibration after the (E-CAL) introduction of the calibration gas by automatically counting down the calibration time set with the quick calibration time setting (E-CAL).

  • Page 64: Storage And Disposal

    8. Storage and Disposal 8-1. Procedures for storage or when not in use for extended periods Storage and Disposal 8-1. Procedures for storage or when not in use for extended periods The product must be stored in the following environment: ...

  • Page 65: Product Disposal

    8. Storage and Disposal 8-2. Product disposal 8-2. Product disposal Dispose of the product as industrial waste (incombustible) in accordance with local regulations. WARNING  Dispose of batteries in accordance with procedures specified by local authorities. <Disposal in EU member states> When disposing of the product in an EU member state, dispose of the battery separately.

  • Page 69: Product Specifications

    10. Product Specifications 10-1. Common specifications Product Specifications 10-1. Common specifications Concentration display LCD digital display (segments + icons) Gas alarm indications Flashing lamp, intermittent buzzer sounding, gas concentration display blinking, vibration Fault alarm/self diagnosis Sensor abnormality, low battery voltage, faulty calibration, clock abnormality, system abnormality Fault alarm indications Flashing lamp, intermittent buzzer sounding, fault information display...

  • Page 71: Specifications By Model

    10. Product Specifications 10-2. Specifications by model Alarm delay Within 5 seconds Within 12 seconds Within 15 seconds Within 30 seconds Within 30 seconds Within 30 seconds Within 12 seconds time Japan models: Auto Japan models: Auto Japan models: Auto Gas alarm reset reset...

  • Page 72: Appendix

    RIKEN’s warranty obligation is limited, at RIKEN’s option, to repair or replacement of a defective product that is returned to a RIKEN KEIKI Quality control center located in Japan within the warranty period. In no event shall RIKEN’s liability hereunder exceed the purchase price actually paid by the buyer for the Product.

This manual is also suitable for:

Gw-3 o2Gw-3 oxGw-3 coGw-3 hsGw-3c-Gw-3 cx

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