Riken Keiki 04 Series Technical Manual
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Riken Keiki 04 Series Technical Manual

Portable gas monitor
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PT0E-1940
Portable Gas Monitor
04 Series
Technical Manual
（PT0-189）
2-7-6 Azusawa, Itabashi-ku, Tokyo, 174-8744, Japan
Website: http://www.rikenkeiki.co.jp/

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  • Page 1 PT0E-1940 Portable Gas Monitor 04 Series Technical Manual （PT0-189） 2-7-6 Azusawa, Itabashi-ku, Tokyo, 174-8744, Japan Website: http://www.rikenkeiki.co.jp/...

  • Page 2: Table Of Contents

    Contents Contents 1. Product Overview .................................5 1-1. Introduction ................................5 1-2. Intended use .................................7 1-3. DANGER, WARNING, CAUTION, and NOTE .....................8 2. Important Safety Information ............................9 2-1. Danger information ...............................9 2-2. Warning information ............................12 2-3. Caution information ............................15 2-4. Safety information .............................. 19 3.
  • Page 3 Contents 5-6. Checking the gas concentration, alarm setpoints, etc. (display mode) ............. 50 5-6-1. Procedure for displaying display mode ....................50 5-6-2. Items displayed in display mode ......................51 5-7. Turning off the power ............................56 6. User Mode Settings ..............................57 6-1.
  • Page 4 Contents 6-14. ROM/SUM display (ROM/SUM) ........................96 7. Maintenance ................................97 7-1. Maintenance intervals and maintenance items ....................97 7-2. Performing calibration ............................99 7-2-1. Preparation for calibration ........................99 7-2-2. Displaying the calibration (GAS CAL) screen ..................108 7-2-3. Performing air calibration ........................109 7-2-4.

  • Page 5: Product Overview

    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 in part. Riken Keiki accepts no liability for accidents or damage resulting from use of the product, whether within or outside the warranty period.
  • Page 6 1. Product Overview 1-1. Introduction Models covered by this operating manual  OX-04G  OX-04  CO-04  HS-04  CO-04 (C-)  CX-04  SC-04 (SO2) <This operating manual> In this operating manual, where descriptions differ according to the model, the following icons are used to indicate each of the models: OX G OX-04G...

  • Page 7: Intended Use

    1. Product Overview 1-2. Intended use 1-2. Intended use The product is a portable gas monitor for personal use designed to detect gases in the surrounding atmosphere. It measures concentrations of toxic gases and oxygen in the atmosphere and issues an alarm when gas concentrations reach preset levels, thereby alerting users to the hazards of gas poisoning and oxygen deficiency.

  • Page 8: 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 DANGER fatal or serious injury 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 10 2. Important Safety Information 2-1. Danger information The battery specifications are as follows: <Dry cell specifications> ・ The explosion-proof class is Ex ia IIC T4 Ga. ・ The ratings are as follows: ・ Domestic models: Power source: 3 V DC (Toshiba LR03 battery × 2) Ambient temperature: −40 °C to +60 °C ・...
  • Page 11 2. Important Safety Information 2-1. Danger information ・ Export models: Power source: 3 V DC, 1 mA (Toshiba LR03, Duracell MN2400, or Duracell PC2400 battery × 2) <Rechargeable battery specifications> eneloop (BK-4MCC) (Panasonic) rechargeable battery × 2  Guidelines <Export models (IECEx)> <Export models (ATEX)>...

  • Page 12: Warning Information

    2. Important Safety Information 2-2. Warning information 2-2. Warning information WARNING Air calibration 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 Handling the calibration gas  The calibration gas is nitrogen or toxic gas. Inhaling the gas may lead to loss of health or even death. When using calibration gas, discharge outside, perform calibration in a well-ventilated area, or use local ventilation equipment.
  • Page 14 2. Important Safety Information 2-2. Warning information WARNING OX G Battery replacement or sensor replacement  An OVER alarm may occur if the power is turned on within 10 minutes of replacing the battery or the sensor. This is due to the characteristics of the sensor. If an OVER alarm occurs in fresh air after replacing the battery or the sensor, turn off the power, then turn the power on again after waiting at least 10 minutes.

  • Page 15: Caution Information

    2. Important Safety Information 2-3. Caution information 2-3. Caution information CAUTION Do not use the product in locations where it may be exposed to oil, chemicals, or other such substances. Avoid deliberately submerging the product in water.  Do not use the product in locations where it may be exposed to oil, chemicals, liquids, or other such substances. Do not use walkie-talkies near the product.
  • Page 16 2. Important Safety Information 2-3. Caution information OX-04G: Continuous use environment: Temperature: −20 °C to +50 °C Humidity: 10 %RH to 90 %RH OX-04,HS-04,CO-04,CO-04(C-),CX-04,SC-04(SO2): Continuous use environment: Temperature: −20 °C to +50 °C Humidity: 10 %RH to 90 %RH Temporary use environment: Temperature: −20 °C to +60 °C Humidity: 0 %RH to 95 %RH ...
  • Page 17 2. Important Safety Information 2-3. Caution information Battery replacement  Be sure to turn off the power for the product when replacing the batteries.  Always replace the batteries with new batteries.  Note the polarity when inserting the batteries. If inserted with the wrong polarity, the screen for setting date and time will appear the next time the power is turned on.
  • Page 18 If [FAIL A-CAL] (calibration abnormality) appears during hydrogen sensitivity calibration, leave the product overnight or longer in a location with sufficient humidity, then perform calibration once again. If it is not possible to perform CO sensitivity calibration, contact Riken Keiki to request sensor replacement. - 18 -...

  • Page 19: Safety Information

    2. Important Safety Information 2-4. Safety information 2-4. Safety information This product is a portable single-gas/two-gas monitor to detect gas. This product uses two AAA alkaline batteries (Toshiba LR03 or Duracell MN2400/PC2400) or two AAA Ni-MH batteries (Panasonic eneloop (BK-4MCC)) for power supply. Perform battery replacement only in a non-hazardous area.
  • Page 20 2. Important Safety Information 2-4. Safety information WARNING  Do not replace batteries in hazardous locations.  Do not attempt to disassemble or alter the product. Use only two series-connected AAA alkaline batteries, LR03 manufactured by Toshiba or MN2400/PC2400  by Duracell, or use two series-connected AAA Ni-MH batteries, eneloop (BK-4MCC) manufactured by Panasonic.

  • Page 21: Product Configuration

    3-1. Main unit and accessories Product Configuration 3-1. Main unit and accessories Open the box and packaging and inspect the main unit and accessories. If anything is missing, contact Riken Keiki. <Main unit and standard accessories> Main unit Standard accessories Dry cell specifications: AAA alkaline battery ×...
  • Page 22 3. Product Configuration 3-1. Main unit and accessories <Optional items (sold separately)>  Dust filter  Filters CO-04, CO-04 (C-): Interference gas removal filter CF-1821 HS-04: Humidity control filter CF-A13i-1 CX-04: Interference gas removal filter CF-6280 SC-04 (SO2): S removal filter CF-A13D-1 ...

  • Page 23: Part Names And Functions

    3. Product Configuration 3-2. Part names and functions 3-2. Part names and functions 3-2-1. Main unit ① Alarm lamp/ Infrared communication port ② Buzzer sound ⑨ Battery ⑧ Belt clip ⑥ Sensor opening cover ③ LCD display ④ AIR button ⑦...
  • Page 24 3. Product Configuration 3-2. Part names and functions Name Function Performs air calibration in measurement mode. Used to select functions when in user AIR button ④ mode, etc. POWER/MODE Turns the power on/off. Confirms operations when in user mode, etc. ⑤...

  • Page 25: Lcd Display

    3. Product Configuration 3-2. Part names and functions 3-2-2. LCD display ③ Operating status ① Gas name/ display concentration display ② Battery level ④ Information display icon Name Function Gas name/ ① Displays the detection target gas name and gas concentration. concentration display Battery level icon Indicates battery levels.

  • Page 26: Inserting The Batteries

    3. Product Configuration 3-3. Inserting the batteries 3-3. Inserting the batteries When using the product for the first time or when battery levels are low, insert/replace with two new batteries. The battery types are as follows: <Dry cell specifications>  Domestic models: Power source: 3 V DC, 1 mA (Toshiba LR03 battery ×...
  • Page 27 3. Product Configuration 3-3. Inserting the batteries 3 Remove the old batteries, then insert new batteries. Note the polarity. When removing the batteries, push the [+] end toward the [−] end and then lift out. Remove the [+] end [+] end batteries one at a time.
  • Page 28 3. Product Configuration 3-3. Inserting the batteries WARNING  An OVER alarm may occur if the power is turned on within 10 minutes of replacing the batteries or the sensor. This is due to the characteristics of the sensor. If an OVER alarm occurs in fresh air after replacing the batteries or the sensor, turn off the power, then turn the power on again after waiting at least 10 minutes.
  • Page 29 3. Product Configuration 3-3. Inserting the batteries CAUTION OX G  The sensor will take about five minutes to stabilize after the batteries are replaced. After replacing the batteries, wait at least five minutes before using the product. CAUTION  The sensor will take about 10 minutes to stabilize after the batteries are replaced.

  • Page 30: Alarm Functions

    4. Alarm Functions 4-1. Gas alarm types and alarm setpoints Alarm Functions 4-1. Gas alarm types and alarm setpoints OX G A gas alarm is triggered if the concentration of the detected gas reaches or exceeds the alarm setpoints shown in the following table.
  • Page 31 4. Alarm Functions 4-1. Gas alarm types and alarm setpoints A gas alarm is triggered if the concentration of the detected gas reaches or exceeds the alarm setpoints shown in the following table. (Domestic models: Auto reset/Export models: Self-latching) Gas alarm types include the first alarm (WARNING), second alarm (ALARM), third alarm (ALARM H), STEL alarm (STEL), cumulative alarm (A-1H) or TWA alarm (TWA) , and OVER alarm (OVER).
  • Page 32 4. Alarm Functions 4-1. Gas alarm types and alarm setpoints A gas alarm is triggered if the concentration of the detected gas reaches or exceeds the alarm setpoints shown in the following table. (Domestic models: Auto reset/Export models: Self-latching) Gas alarm types include the first alarm (WARNING), second alarm (ALARM), third alarm (ALARM H), STEL alarm (STEL), cumulative alarm (A-1H) or TWA alarm (TWA) , and OVER alarm (OVER).
  • Page 33 4. Alarm Functions 4-1. Gas alarm types and alarm setpoints A gas alarm is triggered if the concentration of the detected gas reaches or exceeds the alarm setpoints shown in the following table. (Self-latching) Gas alarm types include the first alarm (WARNING), second alarm (ALARM), third alarm (ALARM H), STEL alarm (STEL), TWA alarm (TWA), and OVER alarm (OVER).

  • Page 34: Gas Alarm Activation

    4. Alarm Functions 4-2. Gas alarm activation 4-2. Gas alarm activation <Buzzer and alarm lamp patterns> When a gas alarm occurs, the user will be alerted by the audible buzzer, flashing alarm lamp, and vibration. The behavior differs depending on the type of alarm. Cumulative First alarm Second alarm...
  • Page 35 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: Fault Alarm Activation

    If a fault alarm occurs, determine the cause and take appropriate action. If the problem lies with the product and the fault occurs repeatedly, contact Riken Keiki immediately. In the event of a fault alarm, the user will be alerted by the audible buzzer and flashing alarm lamp.

  • Page 37: Outside Operating Temperature Range Warning

    4. Alarm Functions 4-4. Outside operating temperature range warning 4-4. Outside operating temperature range warning An outside operating temperature range warning (temperature range error) will be issued if a product (other than the OX-04G) is used for 20 minutes or more outside the operating temperature range. When a temperature range error occurs, either leave the product for five minutes or longer in the operating temperature range, or turn off the power of the main unit.

  • Page 38: 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

    5. Usage Instrucions 5-3. Turning on the power 5-3. Turning on the power Turn the power on and start the product. When the power is turned on, various information, including date and time and alarm setpoints, will be displayed in sequence, followed by the measurement mode screen.
  • Page 40 5. Usage Instrucions 5-3. Turning on the power OX G Entire LCD display Calibration Battery level/ Detection target Date and time lights up. notification alarm pattern gas name The buzzer blips once, and the power turns on. First gas alarm Second gas Third gas alarm Measurement...
  • Page 41 5. Usage Instrucions 5-3. Turning on the power (Display example: CO-04) Entire LCD Calibration Battery level/ Detection target Date and time display lights up. notification alarm pattern gas name The buzzer blips once, and the power turns on. First gas alarm Second gas alarm Third gas alarm STEL alarm...
  • Page 42 5. Usage Instrucions 5-3. Turning on the power Entire LCD Calibration Battery level/ Detection target Date and time display lights up. notification alarm pattern gas name The buzzer blips once, and the power turns on. First gas alarm Second gas Third gas alarm STEL alarm Full scale...
  • Page 43 5. Usage Instrucions 5-3. Turning on the power <Basic operation flow> After turning on the power, the product performs as follows when you press the AIR button or the POWER/MODE button. (Display example: OX G CO-04) <Air calibration> <Display mode> <Display mode>...
  • Page 44 5. Usage Instrucions 5-3. Turning on the power <Display mode> <Air calibration> AIR button POWER/ <Measurement mode> Hold down MODE button POWER/ POWER/ MODE button MODE button <Gas alarm state> <Fault alarm state> - 44 -...

  • Page 45: Performing Air Calibration

    5. Usage Instrucions 5-4. Performing air calibration 5-4. Performing air calibration Perform air calibration before measuring gas concentration. Air calibration refers to zero adjustment required to ensure accurate measurement of gas concentrations. WARNING  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.
  • Page 46 5. Usage Instrucions 5-4. Performing air calibration CAUTION OX G  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 47 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 48: Measuring Gas Concentration

    5. Usage Instrucions 5-5. Measuring gas concentration 5-5. Measuring gas concentration The product automatically returns to measurement mode once air calibration has been successfully completed to measure the gas concentration. The gas concentration will appear on the LCD display when measurement is complete. If the gas concentration detected reaches the alarm setpoint at this time, a gas alarm is triggered.
  • Page 49 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)’.)  The gas concentration alarm setpoints can be checked in display mode. (Refer to ‘5-6. Checking the gas concentration, alarm setpoints, etc.

  • Page 50: 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: Items Displayed In Display Mode

    5. Usage Instrucions 5-6. Checking the gas concentration, alarm setpoints, etc. (display mode) NOTE  The product returns automatically to measurement mode if no button operations occur for about 20 seconds.  When display mode item display setting (DISP.SET) is OFF, the buzzer volume setting is not displayed. To end display mode, press the POWER/MODE button in the alarm setpoint display screen.
  • Page 52 5. Usage Instrucions 5-6. Checking the gas concentration, alarm setpoints, etc. (display mode) PEAK Displays the minimum gas concentration detected display since the power was turned on. (Lower You can clear the PEAK value (lower limit value) while the PEAK display (lower limit value) is on by limit value) holding down the AIR button until [RELEASE] ―...
  • Page 53 5. Usage Instrucions 5-6. Checking the gas concentration, alarm setpoints, etc. (display mode) Integrated Displays the integrated gas concentration value or display or TWA value*. The integrated value (A-1H) is the time-weighted display average for gas concentration over one hour. The elapsed time from the start of measurement is displayed in minute increments to the right of [A-1H].
  • Page 54 5. Usage Instrucions 5-6. Checking the gas concentration, alarm setpoints, etc. (display mode) Alarm Displays alarm setpoints. Pressing the AIR button setpoint lets you change the alarm setpoint display. display 【OX-04G,OX-04】 Pressing the AIR button cycles through the settings in the following order: [F.S.] (FULL SCALE) →...
  • Page 55 5. Usage Instrucions 5-6. Checking the gas concentration, alarm setpoints, etc. (display mode) *HS-04,SC-04(SO2):TWA display *CO-04, CO-04(C-): Japan models: Integrated (A-1H) display/ Export models: TWA display 【CX-04】 Pressing the AIR button cycles through the settings in the following order: [F.S.] (FULL SCALE) → [WARNING] →...

  • Page 56: Turning Off The Power

    5. Usage Instrucions 5-7. Turning off the power NOTE  By pressing the AIR button and the POWER/MODE button at the same time while displaying any of the alarm setpoints in the alarm setpoint display of display mode, you can test the relevant alarm. (Refer to ‘7-4.

  • Page 57: User Mode Settings

    6. User Mode Settings 6-1. User mode setting procedure User Mode Settings 6-1. User mode setting procedure Set the date and time, alarm setpoints, and other settings in user mode. <Displaying the user mode setting screen> Select the setting item in the user mode menu, then make the settings in the setting screen displayed. 1 Turn off the power.
  • Page 58 6. User Mode Settings 6-1. User mode setting procedure A password input screen will appear if a user mode password was set. Press the AIR button for each digit to enter the password, then press the POWER/MODE button. The user mode menu will appear when you press the POWER/MODE button after entering the 4th digit.
  • Page 59 6. User Mode Settings 6-1. User mode setting procedure <Ending user mode> 1 Once the settings are finished, press the AIR button several times to select [START], then press the POWER/MODE button. User mode ends. The product returns to measurement mode after performing the same operation as when the power is turned on.

  • Page 60: User Mode Setting Items

    6. User Mode Settings 6-2. User mode setting items 6-2. User mode setting items The following items can be set in user mode: Item LCD display Details Bump test (BUMP) Perform a bump test (function check). The bump test is a test for checking whether the readings are within the acceptable range by introducing a calibration gas.
  • Page 61 6. User Mode Settings 6-2. User mode setting items Alarm setpoint Set alarm setpoints . You can also return the alarm setpoints to their setting (ALARM-P) default settings. *1 The following alarm setpoints can be set: ・ OX-04G, OX-04: First to third alarm setpoints ・...
  • Page 62 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 63 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). Date and time Set the date and time for the internal clock.

  • Page 64: Calibration Expiration Setting (Cal Set)

    6. User Mode Settings 6-3. Calibration expiration setting (CAL SET) 6-3. Calibration expiration setting (CAL SET) The following items can be set in the calibration expiration setting (CAL SET). (Settings available on export models only) Calibration expiration setting (CAL SET) Calibration expiration ON/OFF (CAL.RMDR) Calibration expiration date interval (CAL.INT) Setting operation after calibration date expires (CAL.EXPD)

  • Page 65: Calibration Expiration On/Off (Cal.rmdr)

    6. User Mode Settings 6-3. Calibration expiration setting (CAL SET) 6-3-1. Calibration expiration ON/OFF (CAL.RMDR) This toggles calibration expiration ON/OFF for AUTO calibration. If calibration expiration is set to ON, when the expiration date set in calibration expiration date interval (CAL.INT) is reached, the operation set in setting operation after calibration date expires (CAL.EXPD) is performed.

  • Page 66: Calibration Expiration Date Interval (Cal.int)

    6. User Mode Settings 6-3. Calibration expiration setting (CAL SET) 6-3-2. Calibration expiration date interval (CAL.INT) This sets the number of days (1 to 1,000 days) for the calibration expiration for AUTO calibration. The default setting is 90 days. 1 Press the AIR button several times in user mode to select [CAL SET], then press the POWER/MODE button.

  • Page 67: Setting Operation After Calibration Date Expires (Cal.expd)

    6. User Mode Settings 6-3. Calibration expiration setting (CAL SET) 6-3-3. Setting operation after calibration date expires (CAL.EXPD) Set the operation performed when the calibration date for AUTO calibration expires. Select one of the following:  CONFIRM: The behavior differs depending on the operation. Press the AIR button to proceed to measurement mode or press the POWER/MODE button to proceed to AUTO calibration.
  • Page 68 6. User Mode Settings 6-3. Calibration expiration setting (CAL SET) 3 Press the AIR button several times to select the operation after calibration date expires, then press the POWER/MODE button. Select [CONFIRM], [CANT.USE], or [NONE]. [END] appears once the settings are complete. The display returns to the [CAL.EXPD] screen.

  • Page 69: Bump Test Expiration Setting (Bump.set)

    6. User Mode Settings 6-4. Bump test expiration setting (BUMP.SET) 6-4. Bump test expiration setting (BUMP.SET) The following items can be set in the bump test expiration setting (BUMP.SET): Bump test expiration setting (BUMP.SET) Bump test setting (SETTING) Bump test time setting (GAS.TIME) Bump test tolerance setting (CHECK) Bump test calibration time setting (CAL.TIME) Bump test calibration ON/OFF (A-CAL)

  • Page 70: Bump Test Setting (Setting)

    6. User Mode Settings 6-4. Bump test expiration setting (BUMP.SET) 6-4-1. Bump test setting (SETTING) Set the bump test time, bump test tolerance, calibration time, and ON/OFF for calibration after a bump test failure. <Bump test time setting (GAS.TIME)> This lets you set the time at which the calibration gas is introduced when performing a bump test. Select from 30, 45, 60, and 90 seconds.
  • Page 71 6. User Mode Settings 6-4. Bump test expiration setting (BUMP.SET) <Bump test tolerance setting (CHECK)> Set the bump test tolerance (threshold for determining pass or failure for the bump test). Select from 10, 20, 30, 40, and 50 %. The default setting is 50 %. 1 Press the AIR button several times in user mode to select [BUMP.SET], then press the POWER/MODE button.
  • Page 72 6. User Mode Settings 6-4. Bump test expiration setting (BUMP.SET) <Bump test calibration time setting (CAL.TIME)> Set the time for calibration after a bump test fails. Select from 60, 90, and 120 seconds. The default setting is 60 seconds. 1 Press the AIR button several times in user mode to select [BUMP.SET], then press the POWER/MODE button.
  • Page 73 6. User Mode Settings 6-4. Bump test expiration setting (BUMP.SET) <Bump test calibration ON/OFF (A-CAL)> Set whether calibration is to be performed after a bump test fails. If this is set to ON, calibration (AUTO calibration) is performed automatically when a bump test fails. The default setting is ON.

  • Page 74: Bump Test Expiration On/Off (Bp.rmdr)

    6. User Mode Settings 6-4. Bump test expiration setting (BUMP.SET) 6-4-2. Bump test expiration ON/OFF (BP.RMDR) This toggles the bump test expiration ON/OFF. If the setting is ON, the operation set in setting behavior after bump test expiration (BP.EXPD) is performed when the expiration date set in bump test expiration date interval setting (BP.INT) is reached.

  • Page 75: Bump Test Expiration Date Interval Setting (Bp.int)

    6. User Mode Settings 6-4. Bump test expiration setting (BUMP.SET) 6-4-3. Bump test expiration date interval setting (BP.INT) This sets the number of days (0 to 30 days) for bump test expiration. The default setting is 30 days. 1 Press the AIR button several times in user mode to select [BUMP.SET], then press the POWER/MODE button.

  • Page 76: Setting Behavior After Bump Test Expiration (Bp.expd)

    6. User Mode Settings 6-4. Bump test expiration setting (BUMP.SET) 6-4-4. Setting behavior after bump test expiration (BP.EXPD) This selects the behavior after the bump test expiration date. Select one of the following:  CONFIRM: The behavior differs depending on the operation. Press the AIR button to proceed to measurement mode or press the POWER/MODE button to proceed to the bump test.
  • Page 77 6. User Mode Settings 6-4. Bump test expiration setting (BUMP.SET) 3 Press the AIR button several times to select the behavior after expiration, then press the POWER/MODE button. Select [CONFIRM], [CANT.USE], or [NONE]. [END] appears once the settings are complete. The display returns to the [BP.EXPD] screen.

  • Page 78: Alarm Setpoint Setting (Alarm-P)

    6. User Mode Settings 6-5. Alarm setpoint setting (ALARM-P) 6-5. Alarm setpoint setting (ALARM-P) This is used to set alarm setpoints. You can also return the alarm setpoints to their default settings. The following items can be set in the alarm setpoint setting (ALARM-P): Alarm setpoint setting (ALARM-P) Alarm setpoint setting (ALARM-P) Resetting alarm setpoints (DEF.ALMP)

  • Page 79: Alarm Setpoint Setting (Alarm-P)

    6. User Mode Settings 6-5. Alarm setpoint setting (ALARM-P) 6-5-1. Alarm setpoint setting (ALARM-P) <Alarm setpoint setting range> Alarm setpoints can be set to the specified number of digits. OX G Detection target gas 1 digit First/second alarm Third alarm Lower limit Upper limit Lower limit...
  • Page 80 6. User Mode Settings 6-5. Alarm setpoint setting (ALARM-P) Detection target gas 1 digit Lower limit Upper limit 1 ppm (0 to 300 ppm) Carbon monoxide 10 ppm 20 ppm 2,000 ppm (CO) (300 to 2,000 ppm) Detection target gas 1 digit First/second alarm Third alarm...
  • Page 81 6. User Mode Settings 6-5. Alarm setpoint setting (ALARM-P) OX G <Alarm setpoint setting> (Display example: CO-04) Set the alarm setpoints as follows: First alarm ≤ second alarm ≤ third alarm (first alarm ≥ second alarm for oxygen [O2]). 1 Press the AIR button several times in user mode to select [ALARM-P], then press the POWER/MODE button.
  • Page 82 6. User Mode Settings 6-5. Alarm setpoint setting (ALARM-P) HS-04, SC-04 (SO2): First alarm setpoint → Second alarm setpoint → Third alarm setpoint → STEL alarm setpoint → TWA alarm setpoint 4 Press the AIR button several times to set the value for the alarm setpoint, then press the POWER/MODE button.
  • Page 83 6. User Mode Settings 6-5. Alarm setpoint setting (ALARM-P) <Alarm setpoint setting> Set the alarm setpoints as follows: First alarm ≤ second alarm ≤ third alarm (first alarm ≥ second alarm for oxygen [O2]). 1 Press the AIR button several times in user mode to select [ALARM-P], then press the POWER/MODE button.
  • Page 84 6. User Mode Settings 6-5. Alarm setpoint setting (ALARM-P) 4 Press the AIR button several times to set the value for the alarm setpoint, then press the POWER/MODE button. Set each alarm setpoint within the valid range of setpoints. Furthermore, set as follows: First alarm ≤ second alarm ≤...

  • Page 85: Resetting Alarm Setpoints (Def.almp)

    6. User Mode Settings 6-5. Alarm setpoint setting (ALARM-P) 6-5-2. Resetting alarm setpoints (DEF.ALMP) This restores alarm setpoints to their default settings. For more information on default settings for alarm setpoints, see ‘4-1. Gas alarm types and alarm setpoints’. 1 Press the AIR button several times in user mode to select [ALARM-P], then press the POWER/MODE button.

  • Page 86: Lunch Break On/Off (Lunch)

    6. User Mode Settings 6-6. Lunch break ON/OFF (LUNCH) 6-6. Lunch break ON/OFF (LUNCH) Set the lunch break setting to ON/OFF. The lunch break function retains the gas concentration values from the last time the power was turned off and loads them to resume measurement the next time the power is turned on.

  • Page 87: Confirmation Beep Setting (Beep)

    6. User Mode Settings 6-7. Confirmation beep setting (BEEP) 6-7. Confirmation beep setting (BEEP) This function provides an audible indication of whether the product is operating normally while measuring gas concentrations. The following items can be set in the confirmation beep setting (BEEP): Confirmation beep setting (BEEP) Beep operation setting (BEEP.SEL) Beep interval setting (BEEP.INT)

  • Page 88: Beep Operation Setting (Beep.sel)

    6. User Mode Settings 6-7. Confirmation beep setting (BEEP) 6-7-1. Beep operation setting (BEEP.SEL) Set the confirmation beep operation. Select one of the following. The default setting is OFF. • OFF: The confirmation beep is OFF. • LED: The alarm lamp lights up. •...

  • Page 89: Beep Interval Setting (Beep.int)

    6. User Mode Settings 6-7. Confirmation beep setting (BEEP) 6-7-2. Beep interval setting (BEEP.INT) Set the interval between confirmation beeps. Set the interval to 0.5 minutes or to a value from 1 to 99 minutes. The default setting is 5 minutes. 1 Press the AIR button several times in user mode to select [BEEP], then press the POWER/MODE button.

  • Page 90: Lcd Lighting Time Setting (Bl Time)

    6. User Mode Settings 6-8. LCD lighting time setting (BL TIME) 6-8. LCD lighting time setting (BL TIME) Set the duration for which the LCD backlight remains lit. Set the LCD lighting time to OFF or to a value from 1 to 255 seconds. The default setting is 30 seconds. 1 Press the AIR button several times in user mode to select [BL TIME], then press the POWER/MODE button.

  • Page 91: Key Operation Tone On/Off (Key.tone)

    6. User Mode Settings 6-9. Key operation tone ON/OFF (KEY.TONE) 6-9. Key operation tone ON/OFF (KEY.TONE) Select ON/OFF for the key operation tone when you press the AIR button or the POWER/MODE button. If this setting is set to ON, the key operation tone will sound when you press the AIR button or the POWER/MODE button.

  • Page 92: Display Mode Item Display On/Off (Disp.set)

    6. User Mode Settings 6-10. Display mode item display ON/OFF (DISP.SET) 6-10. Display mode item display ON/OFF (DISP.SET) You can select whether to display or hide items that can be set in display mode (buzzer volume setting). If this is set to OFF, the items that can be set in display mode (buzzer volume setting) will not be displayed. The default setting is ON.

  • Page 93: Quick Calibration Time Setting (E-Cal)

    6. User Mode Settings 6-11. Quick calibration time setting (E-CAL) 6-11. Quick calibration time setting (E-CAL) The quick calibration function performs AUTO calibration after the introduction of the calibration gas by automatically counting down the calibration time set with the quick calibration time setting (E-CAL). Select OFF or a time from 1 to 180 seconds for quick calibration time.

  • Page 94: Date And Time Setting (Date)

    6. User Mode Settings 6-12. Date and time setting (DATE) 6-12. Date and time setting (DATE) Set the date and time for the internal clock. 1 Press the AIR button several times in user mode to select [DATE], then press the POWER/MODE button.

  • Page 95: User Mode Password Setting (Pass-W)

    6. User Mode Settings 6-13. User mode password setting (PASS-W) 6-13. User mode password setting (PASS-W) Set a password when transitioning to user mode. If the setting is ON, access to user mode is password-protected and a password input screen is displayed when the user seeks to enter user mode.

  • Page 96: Rom/Sum Display (Rom/Sum)

    6. User Mode Settings 6-14. ROM/SUM display (ROM/SUM) 6-14. ROM/SUM display (ROM/SUM) This displays the program number and SUM value of the product. This is normally not set or adjusted by the user. 1 Press the AIR button several times in user mode to select [ROM/SUM], then press the POWER/MODE button.

  • Page 97: Maintenance

    7. Maintenance 7-1. Maintenance intervals and maintenance items Maintenance The product is an important safety and disaster-prevention device. Perform product maintenance at regular intervals to ensure performance and to improve disaster-prevention and safety reliability. 7-1. Maintenance intervals and maintenance items Maintain the following items at regular intervals: ...
  • Page 98  If you encounter a product abnormality, contact Riken Keiki immediately. NOTE  Calibration requires dedicated tools and the preparation of a calibration gas. Contact Riken Keiki before performing calibration.  The built-in sensor has an expiration date. Replace periodically.

  • Page 99: Performing Calibration

    The product can be calibrated using AUTO calibration with preset gas concentrations, in addition to air calibration performed in the atmosphere. Calibration requires dedicated tools and a calibration gas. Contact Riken Keiki before performing calibration. 7-2-1. Preparation for calibration Prepare the following equipment and calibration gases, then connect to this product: <Required equipment>...
  • Page 100 7. Maintenance 7-2. Performing calibration Model Calibration gas Recommended value CO (N -based) 80 ppm CX-04 99.9 % or more SC-04 (SO2) -based) 8 ppm <Connecting the equipment> Before performing calibration, attach the calibration adapter, connect as shown below, then adjust the flow of the calibration gas to 250 ±10 mL/min.
  • Page 101 7. Maintenance 7-2. Performing calibration Calibration adapter GAS IN Gas sampling GAS OUT Pump with flow adjuster function (A pump, flow gauge, and needle can also be used.) Flow rate: 250 ±10 mL/min WARNING Gas sampling bag  Use different gas sampling bags for each gas type and concentration to ensure accurate calibration. Calibration location ...
  • Page 102 7. Maintenance 7-2. Performing calibration WARNING OX G Handling the calibration gas  The calibration gas is nitrogen. Inhaling the gas may lead to loss of health or even death. When using calibration gas, discharge outside, perform calibration in a well-ventilated area, or use local ventilation equipment.
  • Page 103 7. Maintenance 7-2. Performing calibration WARNING Handling the calibration gas  The calibration gas is nitrogen. Inhaling the gas may lead to loss of health or even death. When using calibration gas, discharge outside, perform calibration in a well-ventilated area, or use local ventilation equipment.
  • Page 104 7. Maintenance 7-2. Performing calibration WARNING Handling the calibration gas  The calibration gas (carbon monoxide) is toxic. Inhaling the gas may lead to loss of health or even death. When using calibration gas, discharge outside, perform calibration in a well-ventilated area, or use local ventilation equipment.
  • Page 105 7. Maintenance 7-2. Performing calibration WARNING Handling the calibration gas  The calibration gas (carbon monoxide) is toxic. Inhaling the gas may lead to loss of health or even death. When using calibration gas, discharge outside, perform calibration in a well-ventilated area, or use local ventilation equipment.
  • Page 106 7. Maintenance 7-2. Performing calibration WARNING Handling the calibration gas  The calibration gases are nitrogen and toxic carbon monoxide. Inhaling the gas may lead to loss of health or even death. When using calibration gas, discharge outside, perform calibration in a well-ventilated area, or use local ventilation equipment.
  • Page 107 7. Maintenance 7-2. Performing calibration WARNING Handling the calibration gas  The calibration gas (sulfur dioxide) is toxic. Inhaling the gas may lead to loss of health or even death. When using calibration gas, discharge outside, perform calibration in a well-ventilated area, or use local ventilation equipment.

  • Page 108: Displaying The Calibration (Gas Cal) Screen

    7. Maintenance 7-2. Performing calibration 7-2-2. Displaying the calibration (GAS CAL) screen Calibration is performed with the calibration function (GAS CAL) in user mode. The following items can be performed or set with the calibration function (GAS CAL): Calibration (GAS CAL) Air calibration (AIR) AUTO calibration (A-CAL) Performing AUTO calibration (A-CAL)

  • Page 109: Performing Air Calibration

    7. Maintenance 7-2. Performing calibration 7-2-3. Performing air calibration WARNING  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 110 7. Maintenance 7-2. Performing calibration CAUTION OX G  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 111 7. Maintenance 7-2. Performing calibration 4 Release the AIR button once the LCD display changes from [Air HOLD] to [AdJ RELEASE]. When air calibration succeeds, [PASS] appears. After air calibration, the current gas concentration appears, and the display returns to the [AIR] screen.

  • Page 112: Performing Auto Calibration

    7. Maintenance 7-2. Performing calibration 7-2-4. Performing AUTO calibration Introduce the calibration gas and perform calibration at the gas concentration set in the calibration gas concentration setting (CAL-P). CAUTION  Air calibration must always be performed before AUTO calibration. OX G <Performing AUTO calibration (A-CAL)>...
  • Page 113 7. Maintenance 7-2. Performing calibration AUTO calibration starts. 5 Check the AUTO calibration result. If AUTO calibration is successful [PASS] appears, followed by the gas concentration after AUTO calibration. After this, the product returns automatically to measurement mode. If AUTO calibration fails [FAIL] appears.
  • Page 114 7. Maintenance 7-2. Performing calibration 4 Introduce the calibration gas, wait 60 seconds, then press the POWER/MODE button. AUTO calibration starts. 5 Check the AUTO calibration result. If AUTO calibration is successful [PASS] appears, followed by the gas concentration after AUTO calibration. After this, the product returns automatically to measurement mode.
  • Page 115 7. Maintenance 7-2. Performing calibration <Performing AUTO calibration (A-CAL)> (Display example: CX-04) 1 Press the AIR button several times in user mode to select [GAS CAL], then press the POWER/MODE button. 2 Press the AIR button several times to select [A-CAL], then press the POWER/MODE button.
  • Page 116 7. Maintenance 7-2. Performing calibration 5 Check the AUTO calibration result. If AUTO calibration is successful [PASS] appears, followed by the gas concentration after AUTO calibration. After this, the product returns automatically to measurement mode. However, if multiple cylinders are set, the product will not automatically return to measurement mode.
  • Page 117 7. Maintenance 7-2. Performing calibration OX G <Calibration gas concentration setting (CAL-P)> (Display example: CO-04) 1 Press the AIR button several times in user mode to select [GAS CAL], then press the POWER/MODE button. 2 Press the AIR button several times to select [A-CAL], then press the POWER/MODE button.
  • Page 118 7. Maintenance 7-2. Performing calibration <Calibration gas concentration setting (CAL-P)> 1 Press the AIR button several times in user mode to select [GAS CAL], then press the POWER/MODE button. 2 Press the AIR button several times to select [A-CAL], then press the POWER/MODE button. 3 Press the AIR button several times to select [CAL-P], then press the POWER/MODE button.
  • Page 119 7. Maintenance 7-2. Performing calibration <Cylinder setting (CYL SEL)> Set gas groups (cylinders) for calibration. Five cylinders can be set as A to E. The default settings are as follows: CO-04 (C-): [CO]: A, [H2]: B CX-04: [CO]: A, [O2]: A NOTE ...
  • Page 120 7. Maintenance 7-2. Performing calibration 5 Press the AIR button several times to select the detection target gas, then press the POWER/MODE button. Pressing the AIR button cycles through the detection target gases. CO-04 (C-): [CO] → [H2] → [ESCAPE] CX-04: [CO] →...

  • Page 121: Performing Bump Tests

    7. Maintenance 7-3. Performing bump tests 7-3. Performing bump tests Bump tests are performed using the bump test function (BUMP) in user mode. The bump test (function check) is a test for checking whether the readings are within the acceptable range by introducing a calibration gas.
  • Page 122 7. Maintenance 7-3. Performing bump tests 2 Introduce the calibration gas, then press the POWER/MODE button. [APLY] and [BUMP] alternate on the display. The time until the bump test starts is displayed on the right side. The bump test starts when the remaining time reaches [0].
  • Page 123 7. Maintenance 7-3. Performing bump tests (Display example: CO-04) 1 Press the AIR button several times in user mode to select [BUMP], then press the POWER/MODE button. 2 Introduce the calibration gas, then press the POWER/MODE button. [APLY] and [BUMP] alternate on the display. The time until the bump test starts is displayed on the right side.
  • Page 124 7. Maintenance 7-3. Performing bump tests If the bump test fails [F] appears in the [BMP/CAL] screen (left side of middle row). Press the AIR button to view the reading at the time of the bump test. Left side of middle row: (Displayed only if After a bump test failure, calibration is performed if Bump test result...
  • Page 125 7. Maintenance 7-3. Performing bump tests (Display example: CX-04) 1 Press the AIR button several times in user mode to select [BUMP], then press the POWER/MODE button. 2 Press the AIR button several times to select the cylinder for the bump test, then press the POWER/MODE button.
  • Page 126 7. Maintenance 7-3. Performing bump tests If the bump test fails [F] appears in the [BMP/CAL] screen (left side). Press the AIR button to view the reading at the time of the bump test. After a bump test failure, calibration is performed if Left side of upper row: (Displayed only if [CO] bump test result...

  • Page 127: Performing Alarm Tests

    7. Maintenance 7-4. Performing alarm tests 7-4. Performing alarm tests By pressing the AIR button and the POWER/MODE button at the same time while displaying any of the alarm setpoints in the alarm setpoint display of display mode, you can test the relevant alarm. 1 Press the POWER/MODE button in measurement mode.
  • Page 128 7. Maintenance 7-4. Performing alarm tests NOTE  For information on the alarm patterns at the different alarm setpoints, see ‘4-2. Gas alarm activation’.  The gas concentration on the LCD display will not blink in alarm tests.  To end display mode, press the POWER/MODE button, select the buzzer volume setting screen, then press the POWER/MODE button.

  • Page 129: Cleaning Instructions

    7. Maintenance 7-5. Cleaning instructions 7-5. Cleaning instructions Clean the product if it becomes excessively dirty. Be sure to turn off the power before cleaning. Wipe clean using a cloth or rag soaked in water and firmly wrung out. Do not clean using water, organic solvents, or commercially available cleaners for cleaning, as these may cause the product to malfunction.

  • Page 130: Parts Replacement

    7. Maintenance 7-6. Parts replacement 7-6. Parts replacement For information on parts replacement, please contact Riken Keiki. A functional check by a qualified service engineer is also required after parts replacement. For more information, contact Riken Keiki. 7-6-1. Periodic replacement parts Listed below are the product’s consumable parts.
  • Page 131 AAA Ni-MH batteries specifications *A functional check must be performed by a qualified service engineer after parts replacement to ensure safety and the stable operation of the product. Contact Riken Keiki to request a functional check. NOTE  The above replacement intervals are guidelines. Replacement intervals may vary depending on actual operating conditions.

  • Page 132: Filter Replacement

    7. Maintenance 7-6. Parts replacement 7-6-2. Filter replacement OX G The dust filter is a consumable. Check the extent of the contamination and replace periodically at appropriate intervals. 1 Turn off the power. Hold down the POWER/MODE button for at least three seconds to turn off the power.
  • Page 133 7. Maintenance 7-6. Parts replacement 5 Remove the rubber seal and dust filter from the Rubber seal upper case. Dust filter 6 Replace the dust filter. Rubber seal 7 Attach the rubber seal. Refer to the diagram at right and note the Sensor side orientation of the rubber seal when fitting.
  • Page 134 7. Maintenance 7-6. Parts replacement The dust filter and filter are consumables. Check the extent of the contamination and replace periodically at appropriate intervals. The filter types are as follows:  CO-04, CO-04 (C-): Interference gas removal filter CF-1821  HS-04: Humidity control filter CF-A13i-1 ...
  • Page 135 7. Maintenance 7-6. Parts replacement 5 Remove the filter, rubber seal, and dust filter Filter from the upper case. Rubber seal Dust filter 6 Replace the dust filter. 7 Attach the rubber seal. Rubber seal Note the orientation of the rubber seal when fitting. Refer to the diagram at right and note the Sensor side orientation of the rubber seal when fitting.

  • Page 136: Sensor Replacement

    7-6-3. Sensor replacement The sensor needs to be replaced if you encounter symptoms like failure to restore readings after air calibration or fluctuating readings when performing calibration. Contact Riken Keiki for replacement. OX G 1 Turn off the power. Hold down the POWER/MODE button for at least three seconds to turn off the power.
  • Page 137 7. Maintenance 7-6. Parts replacement Upper case Screws 3 Position with the display facing down, then loosen the four screws with a Phillips head screwdriver. 4 Position with the display facing up. Remove the Screws upper case. 5 Replace the sensor. Sensor Insert the sensor fully.
  • Page 138 7. Maintenance 7-6. Parts replacement 1 Turn off the power. Hold down the POWER/MODE button for at least three seconds to turn off the power. 2 Remove the rubber protection cover. Screws Upper case 3 Position with the display facing down, then loosen the four screws with a Phillips head screwdriver.
  • Page 139 7. Maintenance 7-6. Parts replacement 6 Return the upper case to its original position. Tighten the four screws with the Phillips head screwdriver. Tighten the screws to a torque of 15 to 16 N∙cm with the Phillips head screwdriver. 7 Attach the rubber protection cover. NOTE ...

  • Page 140: 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 141: 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 batteries separately.

  • Page 142: Troubleshooting

    A circuit abnormality Contact Riken Keiki for repair. [FAIL SYSTEM] appears. occurred in the main unit. Sensor abnormality: The sensor sensitivity has Contact Riken Keiki to request sensor replacement. [FAIL SENSOR] appears. degraded. (Refer to ‘7-6-2. Sensor replacement’.) - 142 -...
  • Page 143 Supply fresh air around the product. Air calibration is not supplied to the product. possible. The sensor sensitivity has Contact Riken Keiki to request sensor replacement. [FAIL AIR] appears. degraded. (Refer to ‘7-6-2. Sensor replacement’.) Set the date and time.

  • Page 144: 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/ Sensor abnormality, low battery voltage, faulty calibration, clock abnormality, system self diagnosis abnormality Fault alarm indications...
  • Page 145 10. Product Specifications 10-1. Common specifications Explosion-proof class <Dry cell specifications> Certificate of conformity for electrical equipment used in potentially explosive atmospheres: Ex ia IIC T4 Ga ATEX: II 1G Ex ia IIC T4 Ga IECEx: Ex ia IIC T4 Ga <Rechargeable battery specifications>...

  • Page 146: Specifications By Model

    10. Product Specifications 10-2. Specifications by model 10-2. Specifications by model Model OX-04G OX-04 HS-04 CO-04 CO-04 (C-) CX-04 SC-04 (SO2) Carbon monoxide Detection Carbon Oxygen Oxygen Hydrogen sulfide (reduced Carbon monoxide Oxygen Sulfur dioxide target gas monoxide hydrogen interference) Detection Galvanic cell Electrochemical type...
  • Page 147 10. Product Specifications 10-2. Specifications by model 5 ppm 25 ppm 25 ppm 2.00 ppm Alarm 18.0 % 30.0 ppm 50 ppm 50 ppm 18.0 % 5.00 ppm setpoints 18.0 % 100.0 ppm 1,200 ppm 1,200 ppm 18.0 % 100.00 ppm (Export 25.0 % 1.0 ppm...

  • Page 148: Appendix

    NOTE  The data logger management program (sold separately) is required to check data recorded using the data logger function. Contact Riken Keiki for more information. The data logger has the following five functions: (1) Interval trend Records changes in measured concentration from the time the power is turned on until it is turned off.
  • Page 149 11. Appendix 11-1. Data logger function If 3,600 items are recorded for a single measurement, even if overwriting is enabled, the oldest data will not be overwritten, and recording will stop. However, if the maximum recording time is exceeded, new data will overwrite the oldest data, even if the number of data items is less than 3,600.
  • Page 150 11. Appendix 11-1. Data logger function (4) Trouble event Records fault alarm occurrences as events. This function records the time a fault alarm was triggered, the measurement target gas, device information, and the type of trouble event. Records/retains the most recent 100 data items. If the number of items exceeds 100, new data will overwrite the oldest data.

  • Page 151: Terminology

    11. Appendix 11-2. Terminology 11-2. Terminology Indicates gas concentration in units of parts per million by volume. Indicates gas concentration in units of parts per hundred by volume. Determining correlation between product readout values, display values, and setting values Calibration with actual values using calibration gas This is the time-weighted average for one hour.
  • Page 152 Revision History Issue Revision details Issue date First issue January 24, 2020 * This Technical Manual corresponds to Operation Manual（PT0E-1890）...

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