Riken Keiki SC-9000 Operating Manual
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Riken Keiki SC-9000 Operating Manual

Portable gas detector
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PT0E-2160
Portable Gas Detector
SC-9000
Operating Manual
(PT0-211)

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Summary of Contents for Riken Keiki SC-9000

  • Page 1 PT0E-2160 Portable Gas Detector SC-9000 Operating Manual (PT0-211)

  • Page 2: Table Of Contents

    Contents Contents Product Overview ............................5 1-1 Introduction ............................5 1-2 Intended use ............................5 1-3 Checking the detection target gases and product model ..............7 1-3-1 Detection target gases and product model ................7 1-3-2 F sensor combination patterns ....................9 1-4 DANGER, WARNING, CAUTION, and NOTE ..................
  • Page 3 Contents Settings (Display Mode) ........................... 60 6-1 Display mode items ......................... 60 6-2 Switching to display mode ....................... 63 6-3 Checking settings ..........................64 6-3-1 Clearing the PEAK value ......................64 6-3-2 Displaying the snap logger (gas concentration/alarm status) ..........65 6-3-3 Displaying adjustment records ....................
  • Page 4 Contents Troubleshooting ............................. 114 10-1 Product abnormalities ........................114 10-2 Reading abnormalities ........................118 Product Specifications ........................... 119 11-1 Main unit specifications ........................119 11-2 Sensor specifications ........................121 Appendix ..............................124 12-1 Data logger function ........................124 12-2 Zero suppression function ......................126 12-3 Zero follower function ........................

  • Page 5: Product Overview

    *2: Can be installed on a PC from the separately sold CD-ROM. *3: Can be installed on a PC from the RIKEN KEIKI website. 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 1-2 Intended use The following sensors can be installed in the product: Sensor type Detection principle Sensor model ESF-B242 (NH ESF-C930 (Cl ESF-B249 (O ESF-A24E2 (HCl) ESF-A24D (HCN) Japan Ex model ESF-B248 (HF) Japan Ex model ESF-B248X (HF) ATEX/IECEx model ESF-A24D (PH Toxic gas sensor ESF sensor...

  • Page 7: Checking The Detection Target Gases And Product Model

    The detection target gases vary depending on the particular sensors installed in the product. Check the detection target gases using the product code before use. 1-3-1 Detection target gases and product model The SC-9000 alphanumeric product codes are categorized as follows: ① ②...
  • Page 8 ATEX/IECEx <Example product codes> The specifications for the product code examples listed here are as follows: Example product code EE1E2EDL0 00 E00E400D1 50 E00ECEBL1 00 Product model SC-9000 SC-9000 SC-9000 ESF-B242 (NH F sensor ESF-C930 (Cl ESF-A24E2 (HCl) ESF-B248 (F...

  • Page 9: F Sensor Combination Patterns

    1. Product Overview 1-3 Checking the detection target gases and product model 1-3-2 F sensor combination patterns The F sensor combination patterns are determined as follows: 1. Select the number of sensors from 1, 2, or 3. 2. Select from group A and/or group B sensors listed in <Sensor groups>. 3.
  • Page 10 1. Product Overview 1-3 Checking the detection target gases and product model Number of Sensor slot Number sensors in Pattern each group sensors HCl/HCN HCl/HCN ‒ /SiH /NO/ /SiH /NO/NO /SiH /NO/NO /HBr/Si /HBr/Si HCl/HCN 3 types /SiH /NO/ /HF/F /ClF /SiH /NO/NO...

  • Page 11: Danger, Warning, Caution, And Note

    1. Product Overview 1-4 DANGER, WARNING, CAUTION, and NOTE 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: This indicates situations in which improper handling may result in fatal or serious DANGER injury or significant property damage.

  • Page 12: Checking Standards And Explosion-Proof Specifications

    1. Product Overview 1-5 Checking standards and explosion-proof specifications 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 marking models, refer to the Declaration of Conformity in the Appendix.

  • Page 13: Important Safety Information

    The battery unit can be used only when evaluated in conjunction with this unit and when used in conjunction with a certified main unit. The main unit to which the battery unit can be connected is the SC-9000.  The ratings for the BUL-9000 lithium ion battery unit are as follows: Power source: 3.7 V DC, 250 mA...
  • Page 14 2. Important Safety Information 2-1 Danger information  The ratings for the BUD-9000 dry battery unit are as follows: Power source: 4.5 V DC, 250 mA Interface connector allowable voltage: 5.7 V DC (SELV only) Ambient temperature*: -40 °C to +60 °C * Ambient temperature refers to the temperature range in which the explosion-proof performance can be maintained.

  • Page 15: Warnings

    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/ Sampling point pressure  The product is designed to draw in gas at atmospheric pressure. There is a danger that detection target gas may leak from inside the product if an excessive pressure is applied to the gas inlet (GAS IN) or outlet (GAS OUT) of the product.
  • Page 16 2. Important Safety Information 2-2 Warnings  Do not block the buzzer sound opening. Doing so will muffle or silence the audible warning.  Do not remove the battery unit while the power is turned on. 16 / 140...

  • Page 17: Precautions

    2. Important Safety Information 2-3 Precautions 2-3 Precautions CAUTION Avoid use in locations where oil or chemicals may splash. Avoid deliberately submerging the product in water.  Avoid using the product in locations where the product may be splashed with liquids such as oil and chemicals.
  • Page 18  After an extended period of storage, be sure to perform fresh air adjustment before resuming use. For information on readjustment including fresh air adjustment, contact RIKEN KEIKI.  Do not use the product in locations where miscellaneous gases are present.

  • Page 19: Safety Information

    F-sensor will internally process as far as concentration calculation, and transmit digital data for gas concentration to the main CPU. Sampling of gas is done by the pump installed within the device. The SC-9000 features a single built-in pump for simultaneous detection using all of the sensors installed in the product.
  • Page 20 If the enclosure is damaged it shall be repaired before further use.  The sensor must not be exposed to ultraviolet light or used in equipment in which it is not fully enclosed. SC-9000 (with BUL-9000)  Do not charge in a hazardous location.
  • Page 21 2. Important Safety Information 2-4 Safety information SC-9000 (with BUD-9000)  Do not replace battery unit in a hazardous location.  Do not replace dry batteries in a hazardous location.  For Japan Ex models, be sure to use alkaline AA batteries, type LR6 manufactured by Toshiba. For ATEX/IECEx models, be sure to use alkaline AA batteries, type LR6 manufactured by Toshiba or MN1500 manufactured by Duracell.

  • Page 22: Product Configuration

    3-1 Main unit and accessories Open the box and packaging and inspect the main unit and accessories. If any accessories or parts are 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’.

  • Page 23: Accessories

    3. Product Configuration 3-1 Main unit and accessories 3-1-2 Accessories Part name Remarks Part No.: Sampling probe (Approx. 94 cm) 4733 9406 00 (sampling probe) Shoulder strap Part No.: 4777 4592 10 Provided with lithium ion battery unit AC adapter (BUL-9000) Part No.: 2594 1342 30 Provided with lithium ion battery unit...

  • Page 24: Optional Accessories

    3. Product Configuration 3-1 Main unit and accessories 3-1-3 Optional accessories Part name Remarks Either the dry battery unit or lithium ion battery is provided, but additional units can Dry battery unit be purchased if required. (BUD-9000) Part No. (BUD-9000) : 4777 9603 60 (Japan Ex model) 4777 9605 10 (ATEX/IECEx model) Lithium ion battery...
  • Page 25 3. Product Configuration 3-1 Main unit and accessories Part name Remarks Dimensions: Approx. 365 (W)  236 (H)  226 (D) mm Aluminum storage case Part No.: 4777 9579 00 * Excluding projections Part No.: Data logger management 9811 0980 90 (Japan Ex model) program 9811 0990 80 (ATEX/IECEx model) Used for interfacing with the PC on which...

  • Page 26: Part Names And Functions

    3. Product Configuration 3-2 Part names and functions 3-2 Part names and functions 3-2-1 Main unit and battery unit Name Functions Control panel Contains the buttons and LCD for operating the product. Draws in the gas. Used to connect the sampling probe. Gas inlet (GAS IN) The lithium ion battery unit (BUL-9000) or dry battery unit (BUD-9000) that Battery unit...

  • Page 27: Control Panel

    3. Product Configuration 3-2 Part names and functions 3-2-2 Control panel Name Functions Alarm LED array (top) The lamps flash red when an alarm occurs. LCD display Displays information such as gas type and gas concentration. The lamps flash red when an alarm occurs and detection is not in Alarm LED array (left) progress.

  • Page 28: Lcd Display

    3. Product Configuration 3-2 Part names and functions 3-2-3 LCD display 1 2 3 5 6 7 8 Name Functions Operating status icon Indicates the detection mode operating status. Blinks when normal. Displayed until the bump test expiration date when the bump test Bump test expiration icon expiration display setting is enabled.

  • Page 29: Alarm Functions

    4. Alarm Functions 4-1 Gas alarm types Alarm Functions 4-1 Gas alarm types A gas alarm is triggered instantly if the concentration of the detected gas reaches or exceeds the alarm setpoints shown in the following tables. (Self-latching) Gas alarm types include the first alarm (WARNING), second alarm (ALARM), TWA alarm, STEL alarm, OVER alarm (over scale), and M OVER alarm (negative sensor failure).
  • Page 30 4. Alarm Functions 4-2 Gas alarm setpoints Detection Hydrogen chloride Hydrogen cyanide Item target gas Sensor model ESF-A24E2 ESF-A24D Explosion-proof Japan Ex and Japan Ex specifications ATEX/IECEx Display range 0 – 6.00 ppm 0 – 15.0 ppm Detection range 0 – 6.00 ppm 0 –...
  • Page 31 4. Alarm Functions 4-2 Gas alarm setpoints Detection Fluorine Silane Nitrogen monoxide Item target gas Sensor model ESF-B248 ESF-A24D ESF-A24D2 Explosion-proof Japan Ex and Japan Ex and Japan Ex and specifications ATEX/IECEx ATEX/IECEx ATEX/IECEx Display range 0 – 3.00 ppm 0 –...
  • Page 32 4. Alarm Functions 4-2 Gas alarm setpoints NOTE The alarm setpoints indicated for the first alarm (WARNING), second alarm (ALARM), TWA alarm, and  STEL alarm in the tables above can be changed (or disabled). (Refer to ‘7-3-1 Setting alarm setpoints.’) The M OVER alarm (negative sensor failure) occurs when the zero point drifts to the negative side.

  • Page 33: Gas Alarm Patterns

    4. Alarm Functions 4-3 Gas alarm patterns 4-3 Gas alarm patterns <Gas alarm buzzer sounding and lamp flashing patterns> If a gas alarm occurs, the user is notified by the buzzer sounding and the alarm LED array flashing. The behavior differs depending on the type of alarm. Alarm type First alarm Second alarm...
  • Page 34 4. Alarm Functions 4-3 Gas alarm patterns <Alarm pattern (L-H)> : 1-second interval : 0.5-second interval Reset Reset Second alarm setpoint First alarm setpoint Time Alarm buzzer and lamps 34 / 140...
  • Page 35 4. Alarm Functions 4-3 Gas alarm patterns <Gas alarm display> When a gas alarm occurs, the alarm type is indicated in the units display area of the LCD display, and the corresponding gas concentration display blinks. If the detection range is exceeded (over scale), [OVER] appears alternately in the units display area, and [OVER] blinks in the gas concentration display area.

  • Page 36: Fault Alarm Patterns

     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. NOTE For more information on malfunctions (error messages), refer to ‘10 Troubleshooting’.

  • Page 37: Outside Operating Temperature Range Warning

    4. Alarm Functions 4-5 Outside operating temperature range warning 4-5 Outside operating temperature range warning An outside operating temperature range warning occurs in the form of a temperature range error if the product is used outside the continuous use environment operating temperature range for more than 20 minutes. When a temperature range error occurs, either leave the product for 10 minutes or longer in the operating temperature range, or turn off the power for the main unit.

  • Page 38: Usage Instructions

    5. Usage Instructions 5-1 Usage note Usage Instructions 5-1 Usage note Observe all usage precautions when using the product. Ignoring these precautions may damage the product and result in inability to detect gas concentrations correctly. Check the following before starting gas concentration detection: ...

  • Page 39: Removing And Attaching The Battery Unit And Charging

    5. Usage Instructions 5-2 Removing and attaching the battery unit and charging 5-2 Removing and attaching the battery unit and charging 5-2-1 Removing and attaching the battery unit Follow the procedure described below to remove and attach the lithium ion battery unit (BUL-9000) or dry battery unit (BUD-9000).
  • Page 40 5. Usage Instructions 5-2 Removing and attaching the battery unit and charging Remove the battery unit. * The diagram illustrates the lithium ion battery unit. Main unit Attach a new battery unit. Note the connection terminals and protrusions to ensure that the battery unit is attached in the correct orientation.

  • Page 41: Charging The Lithium Ion Battery Unit (Bul-9000)

    5. Usage Instructions 5-2 Removing and attaching the battery unit and charging 5-2-2 Charging the lithium ion battery unit (BUL-9000) When using the product for the first time or if the battery level is low, be sure to charge the lithium battery unit using the dedicated AC adapter.
  • Page 42 5. Usage Instructions 5-2 Removing and attaching the battery unit and charging When charging is complete, unplug the AC adapter from the power outlet. Remove the AC adapter connection terminal from the lithium ion battery unit charging jack, then close the jack cover.

  • Page 43: Replacing The Dry Battery Unit (Bud-9000)

    5. Usage Instructions 5-2 Removing and attaching the battery unit and charging 5-2-3 Replacing the dry battery unit (BUD-9000) When using the product for the first time or if the battery level is low, replace the batteries with new alkaline AA batteries.
  • Page 44 5. Usage Instructions 5-2 Removing and attaching the battery unit and charging Open the battery cover. Insert six new AA alkaline batteries. Remove any old batteries inside. Note the polarity when inserting new batteries. Close the battery cover, then tighten the battery cover retaining screw.

  • Page 45: Connecting The Sampling Probe

    When detecting gas, connect the sampling probe provided to avoid the effects of airborne dust. CAUTION  Do not use a sampling probe other than that specified by RIKEN KEIKI.  If the sampling probe is bent or the tip is clogged, correct detection will become impossible, and the reading may be lower than the actual gas concentration.

  • Page 46: Turning On The Power

    5. Usage Instructions 5-4 Turning on the power 5-4 Turning on the power When the power is turned on, various settings including the date and time and alarm setpoints are displayed, and then the detection mode screen is displayed. NOTE When the power is turned on, the LCD, lamps, and buzzer operate.
  • Page 47 5. Usage Instructions 5-4 Turning on the power Full scale display First alarm setpoint display Second alarm setpoint display STEL alarm setpoint display TWA alarm setpoint display User ID display Station ID display Detection mode The buzzer blips twice and the product switches to detection mode.
  • Page 48 [----] appears in the concentration display area of the gas for which the sensor abnormality occurred, and detection is not possible for that particular gas. Contact RIKEN KEIKI immediately. If an F sensor abnormality occurs and a sensor abnormality is displayed three times in succession, a ...
  • Page 49 5. Usage Instructions 5-4 Turning on the power Adjustment expiration display (ATEX/IECEx model) When the adjustment notification expiration display setting is enabled with an ATEX/IECEx model  (enabled by default), the adjustment expiration and number of days remaining until the adjustment expiration are displayed.
  • Page 50 5. Usage Instructions 5-4 Turning on the power TWA alarm setpoint display Displays the TWA alarm setpoint for the detection target gas. [OFF] is displayed when the TWA alarm  setpoint is disabled. [----] is displayed when the TWA alarm setpoint is invalid. The TWA value refers to the time-weighted average concentration limit of a toxic substance for a ...

  • Page 51: Performing Fresh Air Adjustment In Detection Mode

    If the fresh air adjustment during detection function is disabled, fresh air adjustment is not possible. Modify the setting for the fresh air adjustment during detection function using the configuration program which can be installed from the RIKEN KEIKI website. Hold down the ▲/AIR button in detection mode.
  • Page 52 5. Usage Instructions 5-5 Performing fresh air adjustment in detection mode NOTE If fresh air adjustment fails, fresh air adjustment is not performed, and [FAIL] appears in the  concentration display area for the failed sensor. Press the RESET/▼ button to reset the fault alarm (adjustment failure). Resetting the alarm displays the value prior to fresh air adjustment.

  • Page 53: Gas Detection

    5. Usage Instructions 5-6 Gas detection 5-6 Gas detection DANGER Gas outlet  Toxic gas may be discharged from the gas outlet. Never breathe in this air. WARNING  The product is designed to draw in gas at atmospheric pressure. There is a danger that detection target gas may leak from inside the product if an excessive pressure is applied to the product gas inlet (GAS IN) or outlet (GAS OUT).

  • Page 54: Detecting Gas Concentration

    5. Usage Instructions 5-6 Gas detection 5-6-1 Detecting gas concentration Detect gas concentrations in detection mode. Hold the tip of the sampling probe close to the detection area. The product sucks in the detection target gas, and the detection results are displayed on the LCD display. NOTE The operating time will be reduced due to battery performance in cold environments at -10 °C or below.

  • Page 55: Basic Operating Flow In Detection Mode

    5. Usage Instructions 5-6 Gas detection 5-6-2 Basic operating flow in detection mode <Detection mode> Hold down <Fresh air <Display mode> adjustment> <Fault alarm <Snap logger> (Flow rate abnormality)> <Pump on/off> Hold down 55 / 140...

  • Page 56: Confirmation Beep Operation

    The confirmation beep operation can be modified using the configuration program which can be  installed from the RIKEN KEIKI website. The buzzer and LEDs operate as follows depending on the confirmation beep operation type. The default setting is [OFF].

  • Page 57: Recording Gas Concentration Logs (Snap Logger)

    5. Usage Instructions 5-7 Recording gas concentration logs (snap logger) 5-7 Recording gas concentration logs (snap logger) Up to 256 user-specified gas concentration values can be recorded while detection is in progress. If more 256 data items are recorded, the oldest data is overwritten. Press the ▲/AIR and DISP/ESC buttons simultaneously on the detection mode screen.

  • Page 58: Stopping The Pump

    5. Usage Instructions 5-8 Stopping the pump 5-8 Stopping the pump Hold down the RESET/▼ button on the detection mode screen (for approximately five seconds). The pump stops. WARNING  Gas alarms and low flow rate alarms are not triggered while the pump is stopped. NOTE Either press the RESET/▼...

  • Page 59: Turning Off The Power

    5. Usage Instructions 5-9 Turning off the power 5-9 Turning off the power CAUTION  If the concentration display does not return to zero after detection ends, allow the product to stand in clean air until the display returns to zero before turning off the power. Hold down the POWER/ENTER button (for at least three seconds).

  • Page 60: Settings (Display Mode)

    6. Settings (Display Mode) 6-1 Display mode items Settings (Display Mode) 6-1 Display mode items LCD display Details Reference PEAK Displays the maximum gas concentration (or 6-3-1 Clearing the PEAK minimum concentration for L-H alarm type) value detected since the power was turned on. Displays the STEL value for 15-minute period STEL prior to the current time (or since the power was...
  • Page 61 6. Settings (Display Mode) 6-1 Display mode items LCD display Details Reference REC DATA DISP 6-3-2 Displaying the snap Displays the gas concentration and alarm status logger (gas concentration/ recorded by the snap logger function. alarm status) CAL DATA Displays the date on which gas adjustment was performed for each sensor.
  • Page 62 6. Settings (Display Mode) 6-1 Display mode items LCD display Details Reference BUZZER VOLUME 6-4-4 Setting the buzzer Selects the buzzer volume setting. volume LANGUAGE CHANGE TO ENGLISH Returns the display language to English. 6-4-5 Switching display language to English This appears if a language other than English has been set with an ATEX/IECEx model.

  • Page 63: Switching To Display Mode

    6. Settings (Display Mode) 6-2 Switching to display mode 6-2 Switching to display mode Press the DISP/ESC button on the detection mode screen. Pressing the DISP/ESC button displays the various setting item screens in sequence. ・ ・ ・ The product returns to detection mode once the display mode item display has ended.

  • Page 64: Checking Settings

    Disabling the PEAK reset function in [Disp mode item] of the configuration program which can be  installed from the RIKEN KEIKI website will prevent clearing of the PEAK value. (The default setting is enabled.) Press the DISP/ESC button several times on the detection mode screen to display the PEAK screen.

  • Page 65: Displaying The Snap Logger (Gas Concentration/Alarm Status)

    6. Settings (Display Mode) 6-3 Checking settings 6-3-2 Displaying the snap logger (gas concentration/alarm status) Displays the gas concentration and alarm status recorded by the snap logger function. Press the DISP/ESC button several times on the detection mode screen to display the REC DATA DISP screen.

  • Page 66: Displaying Adjustment Records

    6. Settings (Display Mode) 6-3 Checking settings 6-3-3 Displaying adjustment records Displays the date on which gas adjustment was performed for each sensor. NOTE The adjustment records are displayed for ATEX/IECEx models with the adjustment expiration function  enabled (default setting is enabled). Press the DISP/ESC button several times on the detection mode screen to display the CAL DATA screen.

  • Page 67: Displaying Bump Test Records

    6. Settings (Display Mode) 6-3 Checking settings 6-3-4 Displaying bump test records Displays the date on which the bump test was performed for each sensor. NOTE Bump test records are displayed when the bump test expiration function is enabled (the default setting ...

  • Page 68: Displaying Alarm Setpoints

    6. Settings (Display Mode) 6-3 Checking settings 6-3-5 Displaying alarm setpoints Displays the full-scale value (FULL SCALE), first alarm setpoint (WARNING), second alarm setpoint (ALARM), STEL alarm setpoint (STEL), and TWA alarm setpoint (TWA) for each sensor. Press the DISP/ESC button several times on the detection mode screen to display the ALARM POINTS screen.
  • Page 69 6. Settings (Display Mode) 6-3 Checking settings NOTE To test the alarms, press the POWER/ENTER button while an alarm setpoint is displayed. (Refer to ‘8-4  Performing alarm tests’.) 69 / 140...

  • Page 70: Display Mode Settings

    If the user ID selection function is disabled in [Disp mode item] of the configuration program which can  be installed from the RIKEN KEIKI website, this setting item will no longer appear in display mode. (The default setting is enabled.)

  • Page 71: Setting The Station Id

    If the station ID selection function is disabled in [Disp mode item] of the configuration program which  can be installed from the RIKEN KEIKI website, this setting item will no longer appear in display mode. (The default setting is enabled.)

  • Page 72: Setting A Bluetooth ® Device Connection

    [Disp mode item] of the configuration program which can be  installed from the RIKEN KEIKI website, this setting item will no longer appear in display mode. (The default setting is enabled.) Press the DISP/ESC button several times on the detection mode screen to display the BLUETOOTH screen.

  • Page 73: Setting The Buzzer Volume

    If the buzzer volume setting function is disabled in [Disp mode item] of the configuration program which  can be installed from the RIKEN KEIKI website, this setting item will no longer appear in display mode. (The default setting is enabled.)

  • Page 74: Switching Display Language To English (Atex/Iecex Model)

    If the return to English function is disabled in [Disp mode item] of the configuration program which can  be installed from the RIKEN KEIKI website, this setting item will no longer appear in display mode. (The default setting is enabled.)

  • Page 75: Switching Display Language To Japanese (Japan Ex Model)

    If the return to Japanese function is disabled in [Disp mode item] of the configuration program which  can be installed from the RIKEN KEIKI website, this setting item will no longer appear in display mode. (The default setting is enabled.)

  • Page 76: Settings (User Mode)

    7. Settings (User Mode) 7-1 User mode display items Settings (User Mode) 7-1 User mode display items LCD display Details Reference BUMP TEST 8-3 Performing bump Performs a bump test. tests GAS CAL Performs fresh air adjustment and span 8-2 Performing gas adjustment.
  • Page 77 7. Settings (User Mode) 7-1 User mode display items LCD display Details Reference LANGUAGE 7-4-3 Setting the Set the screen display language. display language VERSION Displays the version information for the modules 7-4-4 Displaying mounted in the product. version information START MEASURE Switches to the detection mode screen.

  • Page 78: Switching To User Mode

    The user mode menu is displayed once the (four-digit) password has been correctly entered. The default password setting is 0000. The password can be changed using the configuration program which can be installed from the RIKEN KEIKI website. <Switching from user mode to detection mode>...

  • Page 79: Gas Alarm Settings

    7. Settings (User Mode) 7-3 Gas alarm settings 7-3 Gas alarm settings 7-3-1 Setting alarm setpoints Alarm setpoints can be set individually for each sensor. Alarm setpoints can be set in increments corresponding to the resolution. Setting range Detection target Setting range Sensor Resolution...
  • Page 80 7. Settings (User Mode) 7-3 Gas alarm settings Press the ▲/AIR or RESET/▼ button in the user mode menu to select [ALARM SETTING], then press the POWER/ENTER button. Check to confirm that [ALARM POINTS] is selected, then press the POWER/ENTER button. Press the ▲/AIR or RESET/▼...
  • Page 81 7. Settings (User Mode) 7-3 Gas alarm settings NOTE Press the ▲/AIR or RESET/▼ button when setting an alarm setpoint to change the value in increments  corresponding to the resolution. Hold down the ▲/AIR or RESET/▼ button (for less than seven seconds) when setting an alarm ...

  • Page 82: Setting Alarm Type

    7. Settings (User Mode) 7-3 Gas alarm settings 7-3-2 Setting alarm type Set the gas alarm type for each sensor. These can be set as [H-HH], [L-LL], or [L-H]. The default setting is [H-HH]. NOTE The sensors installed in the product perform optimally with [H-HH]. Do not set to [L-LL] or [L-H]. ...
  • Page 83 7. Settings (User Mode) 7-3 Gas alarm settings Press the POWER/ENTER button. The alarm type is set. [END] appears, and the display returns to the screen in Step 3. NOTE To cancel the setting, press the DISP/ESC button in Step 5. ...

  • Page 84: Setting Alarm Pattern

    7. Settings (User Mode) 7-3 Gas alarm settings 7-3-3 Setting alarm pattern Set the alarm pattern. This can be set to [LATCHING] or [SELF RESET]. The default setting is [LATCHING]. Press the ▲/AIR or RESET/▼ button in the user mode menu to select [ALARM SETTING], then press the POWER/ENTER button.

  • Page 85: Resetting Alarm Setpoints

    7. Settings (User Mode) 7-3 Gas alarm settings 7-3-4 Resetting alarm setpoints This restores alarm setpoints to their default settings. NOTE This item does not appear in user mode if the sensors installed are not the default sensors.  For more information on alarm setpoint default settings, refer to ‘4-2 Gas alarm setpoints’. ...

  • Page 86: Enabling/Disabling The Alarm Function

    7. Settings (User Mode) 7-3 Gas alarm settings 7-3-5 Enabling/disabling the alarm function Enable and disable the alarm function. Gas alarms will not operate when the alarm function is set to [OFF]. The [NO ALARM] icon is also displayed at the top of the screen. The default setting is [ON].

  • Page 87: Other User Mode Settings

    7. Settings (User Mode) 7-4 Other user mode settings 7-4 Other user mode settings 7-4-1 Setting the buzzer Set the buzzer. Select one of the following: The default setting is [ALL ON].  [ALL ON]: The buzzer sounds in all situations. (Button operation tone, alarm sound, and warning sound all sound.) ...

  • Page 88: Setting The Date And Time

    7. Settings (User Mode) 7-4 Other user mode settings 7-4-2 Setting the date and time Set the internal clock date (year, month, day) and time (hours and minutes). Set the date and time in the sequence year → month → day → hours → minutes. Press the ▲/AIR or RESET/▼...

  • Page 89: Setting The Display Language

    7. Settings (User Mode) 7-4 Other user mode settings 7-4-3 Setting the display language Set the screen display language. The default setting is [JAPANESE] for Japan Ex models. The default setting is [ENGLISH] for ATEX/IECEx models. The following languages are available: ...

  • Page 90: Displaying Version Information

    7. Settings (User Mode) 7-4 Other user mode settings 7-4-4 Displaying version information Displays the version information for the modules mounted in the product. The following information can be displayed:  Main PCB version  Sensor PCB version  R sensor versions ...
  • Page 91 7. Settings (User Mode) 7-4 Other user mode settings Press the POWER/ENTER button. [END] appears, and the display returns to the screen in Step 1. 91 / 140...

  • Page 92: Maintenance

    If the sensors cannot be adjusted using span adjustment, the readings are not restored after fresh air  adjustment, or the readings fluctuate, the sensors are at the end of their life. Contact RIKEN KEIKI. For more information on sensor warranty periods, refer to the table in ‘12-6 Warranty policy’.
  • Page 93 <Maintenance service> RIKEN KEIKI provides services related to regular maintenance, including span adjustment, as well as other adjustments and maintenance. Preparing calibration gas requires dedicated tools, such as gas cylinders of the specified concentration and gas sampling bags.

  • Page 94: Performing Gas Adjustment

    8-2 Performing gas adjustment 8-2 Performing gas adjustment Gas adjustment requires dedicated tools and a calibration gas. Contact RIKEN KEIKI to request gas readjustment. CAUTION  Due to the way the sensor operates, an accurate reading may not be displayed immediately after turning on the power.
  • Page 95 8. Maintenance 8-2 Performing gas adjustment <Recommended calibration gas concentration and introduction time> Calibration gas Gas introduction Sensor Detection target gas Calibration gas concentration time ESF-B242 Ammonia (NH Ammonia (NH 40 ppm 120 seconds ESF-C930 Chlorine (Cl Chlorine (Cl 0.80 ppm 120 seconds Ozone (O Depends on...
  • Page 96 8. Maintenance 8-2 Performing gas adjustment NOTE The recommended calibration gas concentrations are the same as above for the bump test, too.  The recommended calibration gas concentrations are shown here. If the calibration gas concentration  used differs, alter the concentration setting and perform gas adjustment. WARNING ...
  • Page 97 8. Maintenance 8-2 Performing gas adjustment <Gas adjustment menu> Gas adjustment is performed using [GAS CAL] in user mode. The following menu displayed in [GAS CAL] allows individual items to be run and set. [GAS CAL] [AIR CAL] [SPAN CAL] [CYLINDER A] to [CYLINDER F] [START MEASURE] [SETTING CAL-P]...

  • Page 98: Performing Fresh Air Adjustment

    8. Maintenance 8-2 Performing gas adjustment 8-2-2 Performing fresh air adjustment Fresh air adjustment must be performed before detecting gas concentration. For information on individual sensor adjustment methods and precautions, refer to ‘5-5 Performing fresh air adjustment in detection mode’. Press the ▲/AIR or RESET/▼...
  • Page 99 If fresh air adjustment fails, repeat fresh air adjustment in clean air. If fresh air adjustment still fails, the  sensor is likely to be faulty. Contact RIKEN KEIKI. 99 / 140...

  • Page 100: Setting Span Adjustment

    8. Maintenance 8-2 Performing gas adjustment 8-2-3 Setting span adjustment The cylinders, calibration gas concentration, and calibration gas can be set for span adjustment. <Set the cylinders> Set the sensor groups (cylinders) for calibration. When using cylinders with mixtures of multiple gases, gas adjustment can be performed simultaneously for the gases set to the same cylinder.
  • Page 101 8. Maintenance 8-2 Performing gas adjustment NOTE To cancel the setting, press the DISP/ESC button in Step 5.  <Set the gas concentration for span adjustment> The calibration gas concentration for span adjustment can be set within the following ranges for each sensor. Gas concentration can be set in increments corresponding to the resolution.
  • Page 102 8. Maintenance 8-2 Performing gas adjustment Press the ▲/AIR or RESET/▼ button to select the sensor, then press the POWER/ENTER button. Press the ▲/AIR or RESET/▼ button to set the gas concentration for span adjustment, then press the POWER/ENTER button. [END] appears, and the display returns to the screen in Step 4.

  • Page 103: Performing Span Adjustment

    The automatic start after successful adjustment function setting can be changed using the configuration program which can be installed from the RIKEN KEIKI website. Press the ▲/AIR or RESET/▼ button in the user mode menu to select [GAS CAL], then press the POWER/ENTER button.
  • Page 104 8. Maintenance 8-2 Performing gas adjustment Introduce the calibration gas for span adjustment, wait 60 or 120 seconds, then press the POWER/ENTER button. For information on the gas introduction time, refer to ‘8-2-1 Preparation for gas adjustment’. Span adjustment is performed. Once span adjustment has been successfully completed, the result is displayed, and the concentration after...

  • Page 105: Performing Bump Tests

    The automatic start after successful bump test function setting can be changed using the configuration program which can be installed from the RIKEN KEIKI website. The default settings for bump test execution conditions are as follows: ...
  • Page 106 8. Maintenance 8-3 Performing bump tests If the bump adjustment function is enabled, the product will automatically perform gas adjustment in the event of a bump test failure. The gas adjustment remaining time is displayed at the bottom of the screen. The following results are displayed when the bump test and gas adjustment end.

  • Page 107: Performing Alarm Tests

    8. Maintenance 8-4 Performing alarm tests 8-4 Performing alarm tests Press the POWER/ENTER button while an alarm setpoint is displayed in the display mode alarm setpoint display to test the corresponding alarm. Press the DISP/ESC button several times on the detection mode screen to display the ALARM POINTS screen.

  • Page 108: Cleaning Procedure

    8. Maintenance 8-5 Cleaning procedure 8-5 Cleaning procedure Clean the product if it becomes excessively dirty. Be sure to turn off the power before cleaning, and wipe clean using a rag or cloth 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 109: Parts Replacement

    Part No.: 2753 3007 80 A function check by a qualified service engineer is required after parts replacement. To ensure safety and the stable operation of the product, request checking by a qualified service engineer. Contact RIKEN KEIKI. 109 / 140...
  • Page 110 3 years NOTE A function check by a qualified service engineer is required after sensor replacement. To ensure safety  and the stable operation of the product, request checking by a qualified service engineer. Contact RIKEN KEIKI. 110 / 140...

  • Page 111: Replacing The Sampling Probe Dust Filter

    Rotate only by hand. Overtightening with a tool may damage the plastic part. NOTE Do not use filters other than those specified by RIKEN KEIKI.  For more information on the replacement filters, refer to ‘8-6-1 Periodic replacement parts’. ...

  • Page 112: Storage And Disposal

    9. Storage and Disposal 9-1 Procedures for storage or when not in use for extended periods Storage and Disposal 9-1 Procedures for storage or when not in use for extended periods The product must be stored in the following environment: ...

  • Page 113: Procedures For Use After Storage

     After an extended period of storage, be sure to perform gas adjustment before resuming use. Contact RIKEN KEIKI to request readjustment of the product, including gas adjustment.  If there is a temperature difference of 15 °C or more between the storage and usage locations, turn on the power and allow the product to stand for about 10 minutes in a similar environment to the usage location to acclimatize before performing fresh air adjustment in clean air.

  • Page 114: Troubleshooting

    This troubleshooting section does not address causes of all problems that may occur with the product. It provides brief explanations to assist in determining the causes of common problems. If you encounter symptoms not addressed here or if problems persist even after taking corrective action, contact RIKEN KEIKI. 10-1 Product abnormalities <Power source related problems>...
  • Page 115 Turn off the power, then turn it back on again to supply voltage abnormality restart. If the problem persists, contact RIKEN KEIKI. ・ Effects of abnormal noise ・ Sensor PCB communication abnormality, status abnormality, or...
  • Page 116 ・ Low backup battery voltage Replace with new dry batteries (all six) in a safe place, then set the date and time. If the problem persists, the backup battery must be replaced. Contact RIKEN KEIKI. <Sensor abnormality (FAIL SENSOR)> Symptom Cause...
  • Page 117 <Other> Symptom Cause Action Indicates that more than one year has [PLEASE CAL] is Contact RIKEN KEIKI to request elapsed since the last adjustment date. displayed. maintenance. (Japan Ex models only) Indicates that the set gas adjustment Either perform gas adjustment yourself or [CAL DATE PAST] is expiration date has passed.

  • Page 118: Reading Abnormalities

    It is difficult to completely eliminate the effects of interference gases such as solvents. Presence of interference gases Contact RIKEN KEIKI for information on countermeasures, such as removal filters. The reading rises (or They may be a very small leakage (slow drops) and remains leakage) of the detection target gas.

  • Page 119: Product Specifications

    11. Product Specifications 11-1 Main unit specifications Product Specifications 11-1 Main unit specifications Item Specifications Concentration display LCD digital (full dot) Detection target gas Toxic gas (ammonia (NH ), chlorine (Cl ), ozone (O ), hydrogen chloride (HCl), hydrogen cyanide (HCN) , hydrogen fluoride (HF), fluorine (F ), silane (SiH nitrogen monoxide (NO), nitrogen dioxide (NO...
  • Page 120 11. Product Specifications 11-1 Main unit specifications Item Specifications Certifications External dimensions Approx. 158 (W)  85 (H)  132 (D) mm Weight Approx. 1.1 kg *1: Not included in the ATEX/IECEx model lineup. Due to export restrictions, this cannot be installed in products exported outside Japan.

  • Page 121: Sensor Specifications

    11. Product Specifications 11-2 Sensor specifications 11-2 Sensor specifications Detection Ammonia Chlorine Ozone Item target gas Sensor model ESF-B242 ESF-C930 ESF-B249 Explosion-proof Japan Ex and ATEX/IECEx Japan Ex and ATEX/IECEx Japan Ex and ATEX/IECEx specifications Display range 0 – 75.0 ppm 0 –...
  • Page 122 11. Product Specifications 11-2 Sensor specifications Hydrogen Hydrogen Phosphine Fluorine Detection Item fluoride fluoride target gas Sensor model ESF-B248 ESF-B248X ESF-A24D ESF-B248 Explosion-proof Japan Ex and Japan Ex and Japan Ex ATEX/IECEx specifications ATEX/IECEx ATEX/IECEx Display range 0 – 1.50 ppm 0 –...
  • Page 123 11. Product Specifications 11-2 Sensor specifications Hydrogen Chlorine Disilane Detection Item bromide trifluoride target gas Sensor model ESF-A24E2 ESF-B24A ESF-A24D Explosion-proof Japan Ex and Japan Ex and Japan Ex and specifications ATEX/IECEx ATEX/IECEx ATEX/IECEx Display range 0 – 6.00 ppm 0 –...

  • Page 124: 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 provides the following five functions: (1) Interval trend Records the changes in detected concentration from the start of detection until the power is turned off.
  • Page 125 12. Appendix 12-1 Data logger function (4) Trouble event Records fault alarm occurrences as events. This function records the time when the fault alarm was triggered, the detection target gas, device information, and the type of trouble event. The 100 most recent events are recorded. If the number of items exceeds 100, the oldest data will be overwritten by the latest data.

  • Page 126: Zero Suppression Function

    The default setting is enabled. To disable the setting, use the configuration program which can be  installed from the RIKEN KEIKI website and refer to the operating manual. If the setting is disabled, readings may fluctuate due to output variations attributable to sensor characteristics.

  • Page 127: Zero Follower Function

    The default setting is enabled. To disable the setting, use the configuration program which can be  installed from the RIKEN KEIKI website and refer to the operating manual. When the setting is disabled, the zero point may fluctuate due to output variation caused by the sensor characteristics.

  • Page 128: List Of Interference Gases For Electrochemical Type Sensors

    12. Appendix 12-4 List of interference gases for electrochemical type sensors 12-4 List of interference gases for electrochemical type sensors The following tables list the interference gases for electrochemical type toxic gas sensors. The values indicated here are representative values detected in a laboratory environment using new sensors and filters.
  • Page 129 12. Appendix 12-4 List of interference gases for electrochemical type sensors <ESF-C930 (Cl )> Gas name Chemical formula Gas concentration Reading Ammonia 75 ppm -0.02 ppm Ozone 2.4 ppm 0.24 ppm Hydrogen chloride 15 ppm 0.02 ppm Hydrogen cyanide 7.8 ppm -0.01 ppm Hydrogen fluoride 0.8 ppm...
  • Page 130 12. Appendix 12-4 List of interference gases for electrochemical type sensors <ESF-A24E2 (HCl)> Gas name Chemical formula Gas concentration Reading Ammonia 400 ppm -0.19 ppm Chlorine 2.5 ppm 0.40 ppm Ozone 2.4 ppm -0.05 ppm Hydrogen cyanide 6.9 ppm 0.03 ppm Hydrogen fluoride 6.0 ppm 0.39 ppm...
  • Page 131 12. Appendix 12-4 List of interference gases for electrochemical type sensors <ESF-B248 (HF) Japan Ex model> Gas name Chemical formula Gas concentration Reading Ammonia 75 ppm -0.06 ppm Chlorine 0.8 ppm 1.14 ppm Ozone 0.32 ppm 0.06 ppm Hydrogen chloride 3.2 ppm 2.46 ppm Hydrogen cyanide...
  • Page 132 12. Appendix 12-4 List of interference gases for electrochemical type sensors <ESF-A24D (PH )> Gas name Chemical formula Gas concentration Reading Ammonia 250 ppm 0.00 ppm Chlorine 10 ppm -1.68 ppm Ozone 3.1 ppm -0.96 ppm Hydrogen chloride 15 ppm 0.80 ppm Hydrogen cyanide 7.1 ppm...
  • Page 133 12. Appendix 12-4 List of interference gases for electrochemical type sensors <ESF-A24D (SiH )> Gas name Chemical formula Gas concentration Reading Ammonia 250 ppm 0.0 ppm Chlorine 10 ppm -2.1 ppm Ozone 3.1 ppm -1.2 ppm Hydrogen chloride 15 ppm 1.0 ppm Hydrogen cyanide 7.1 ppm...
  • Page 134 12. Appendix 12-4 List of interference gases for electrochemical type sensors <ESF-AA20 (NO )> Gas name Chemical formula Gas concentration Reading Ammonia 400 ppm 1.0 ppm Chlorine 0.8 ppm 0.2 ppm Ozone 2.55 ppm 4.60 ppm Hydrogen chloride 4.8 ppm -6.1 ppm Hydrogen cyanide 6.4 ppm...
  • Page 135 12. Appendix 12-4 List of interference gases for electrochemical type sensors <ESF-A24E2 (HBr)> Gas name Chemical formula Gas concentration Reading Ammonia 400 ppm -0.23 ppm Chlorine 2.5 ppm 0.48 ppm Ozone 2.4 ppm -0.06 ppm Hydrogen chloride 3.2 ppm 3.84 ppm Hydrogen cyanide 6.9 ppm 0.04 ppm...
  • Page 136 12. Appendix 12-4 List of interference gases for electrochemical type sensors <ESF-A24D (Si )> Gas name Chemical formula Gas concentration Reading Ammonia 250 ppm 0.0 ppm Chlorine 10 ppm -1.7 ppm Ozone 2.4 ppm -0.7 ppm Hydrogen chloride 15 ppm 0.8 ppm Hydrogen cyanide 6.4 ppm...

  • Page 137: Radio Law Certification

    12. Appendix 12-5 Radio law certification 12-5 Radio law certification This product is certified as complying with radio laws in individual countries and regions as follows. The following actions are prohibited by radio laws. The user and/or retailer may be subject to punishment if prohibited actions are committed.
  • Page 138 (RF) CNR-102 de l’IC. Cet équipement émet une énergie RF très faible qui est considérée comme conforme sans évaluation du débit d’absorption spécifique (DAS). ACMA Model: SC-9000 (Australia) 138 / 140...

  • Page 139: Warranty Policy

    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.
  • Page 140 12. Appendix 12-6 Warranty policy Table: List of warranty years Product warranty 3 years Sensor warranty Sensor model Detection target gas Warranty period ESF-B242 Ammonia (NH 2 years ESF-C930 Chlorine (Cl 3 years ESF-B249 Ozone (O 1 year ESF-A24E2 Hydrogen chloride (HCl) 3 years ESF-A24D Hydrogen cyanide (HCN)
  • Page 141 Revision history Issue Revision details Issue date First issue (PT0-2160) June 10, 2024...

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