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6

Maintenance

This is an important instrument for the purpose of safety.
To maintain the performance of the gas monitor and improve the reliability of safety, perform a regular
maintenance.

6-1. Maintenance intervals and items



Daily maintenance: Perform maintenance before beginning to work.



Monthly maintenance: Perform alarm test once a month.



Regular maintenance: Please do it more frequently once a year (recommended: more than once every

six months).

Maintenance item

Maintenance content

Daily

maintenance

Monthly

maintenance

Regular

maintenance

Battery Level
Check

Check that the battery level is sufficient.







Concentration
Display Check

Make the gas monitor draw in fresh air and check that
the concentration display value is zero (or 20.9 vol%
on the oxygen deficiency meter). When the reading is
incorrect, perform the zero adjustment (fresh air
adjustment) after ensuring that no other gases exist
around it.







Flow Rate Check See the flow rate indicator to check for abnormalities.







Filter Check

Check the dust filter for dust or clogging.







Alarm Test

Check the alarm lamp and buzzer for normal
operation using the alarm test function.





Span Adjustment

Perform the span adjustment by using the calibration
gas.



Gas Alarm Check Check the gas alarm by using the calibration gas.



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Содержание PT0E-09810

Страница 1: ...PT0E 09810 Portable Gas Monitor GX 8000 Operating Manual PT0 098 ...

Страница 2: ...ic operating procedures 23 4 4 How to start the gas monitor 24 4 5 How to detect 26 4 6 Modes 30 4 7 Air calibration mode 31 4 8 Display setting mode 33 4 9 How to exit 40 5 Operations and Functions 41 5 1 Gas alarm activation 41 5 2 Fault alarm activation 43 5 3 Other functions 43 6 Maintenance 44 6 1 Maintenance intervals and items 44 6 2 Gas calibration method 45 6 3 How to clean 46 6 4 Parts r...

Страница 3: ...nd high concentration combustible gases vol in N2 and inert gases Detection results are not intended to guarantee life or safety in any way The gas monitor comes in several types for different combinations of gases to be detected Check the specifications of the gas monitor before use and conduct gas detection properly in accordance with purposes See the list of gases to be detected at the end of t...

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Страница 6: ...oof approval No of main unit that can be connected BUL 8000 G TC19437 BUD 8000 G TC19438 GX 8000 TC19439 BUL 8000 G1 TC21223 BUD 8000 G1 TC21224 GX 8000 TC21222 The specifications of lithium ion battery units are as follows Pump circuit Maximum voltage of 4 25 V maximum current of 1 12 A and maximum power of 901 mW Combustible gas sensor circuit Maximum voltage of 4 25 V maximum current of 0 768 A...

Страница 7: ...P protection class IP20 About use While conducting measurement in a manhole or confined space do not lean over or look into the manhole or closed space It may lead to dangers because oxygen deficient air or other gases may blow out Oxygen deficient air or other gases may blow out from the gas exhausting outlet Never inhale the air or gases High concentration more than LEL gases may blow out Never ...

Страница 8: ...ately with a large quantity of water Fresh air adjustment in atmosphere When the fresh air adjustment is performed in the atmosphere check the atmosphere for freshness before beginning the adjustment If other gases exist the adjustment cannot be performed properly thus leading to dangers when the gas leaks Response to gas alarm Issuance of a gas alarm indicates that there are extreme dangers Take ...

Страница 9: ...t higher temperatures humidities and pressures or at lower temperatures than the operating range Avoid long term use of the gas monitor in a place where it is exposed to direct sunlight Do not store the gas monitor in a sun heated car Observe the operating restrictions to prevent condensation inside the gas monitor or gas sampling hose Condensation formed inside the gas monitor or gas sampling hos...

Страница 10: ...ases that have harmful effects on the sensors of this unit Different gases can be defected depending on the type The gas monitor cannot be used in the presence of the following gases 1 Sulfides such as H2S and SO2 continuously existing in high concentrations 2 Halogen gases such as chloride compounds and chlorofluorocarbons 3 Silicone Si compounds Do not use the gas monitor in the presence of the ...

Страница 11: ...it BUD 8000 G BUD 8000 G1 Powered by three series connected Alkaline AA batteries type LR6 manufactured by Toshiba Backup battery type CR1220 manufactured by Maxell Certificate numbers IECEx Certificate number IECEx KEM 10 0038 ATEX Certificate number KEMA 10ATEX 0085 List of standards IEC 60079 0 2017 EN IEC 60079 0 2018 IEC 60079 11 2011 EN60079 11 2012 WARNING Do not charge in hazardous locatio...

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Страница 13: ...roof approval No of main unit that can be connected BUL 8000 G TC19437 BUD 8000 G TC19438 GX 8000 TC19439 BUL 8000 G1 TC21223 BUD 8000 G1 TC21224 GX 8000 TC21222 The specifications of lithium ion battery units are as follows Pump circuit Maximum voltage of 4 25 V maximum current of 1 12 A and maximum power of 901 mW Combustible gas sensor circuit Maximum voltage of 4 25 V maximum current of 0 768 ...

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Страница 15: ...15 3 2 Names and functions for each part Outline Drawing ...

Страница 16: ...onnect an AC powered charger and recharge the batteries 12 Recharging indicator lamp Lights up in red during recharging and goes off when recharging is completed 13 Sensor cover There are sensors inside May be opened only when the sensor is to be replaced 14 Activated carbon filter knob Turn this knob to detach and replace the activated carbon filter No activated carbon filter is used on a type th...

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Страница 18: ...free of dust or clogging Check that the gas monitor gas sampling probe and gas sampling hose are connected properly Recharging of Batteries When the gas monitor is used for the first time or when the battery level is low be sure to use the accessory AC powered charger to recharge the batteries CAUTION Use the dedicated AC powered charger Recharge the batteries in a non hazardous area Recharge the ...

Страница 19: ... NOTE During recharging the battery pack may get hot but this is not abnormal The temperature of the gas monitor is high immediately after recharging is completed Let it leave for 10 minutes or more before using it Otherwise correct measurements may not be obtained When fully recharged batteries are recharged again the recharging indicator lamp does not go on CAUTION Do not pull the recharging jac...

Страница 20: ... Close the battery cover and tighten the battery cover fixing screw CAUTION Replacement Turn off the power of the gas monitor before replacing the batteries Replace the batteries in a non hazardous area Replace all of the three batteries with new ones at one time Pay attention to the polarities of the batteries If the battery cover fixing screw is not completely tightened the dry batteries may dro...

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Страница 24: ...econds Keep the POWER switch pressed for three seconds or more LCD All LCDs light up Alarm lamp lights up Buzzer sounds once Beep Date Time Display Battery Voltage Display Gas Name Display Full Scale Display First Alarm Setpoint Display Second Alarm Setpoint Display ...

Страница 25: ... abnormal on the sensor to and start gas detection However notify the abnormality to RIKEN KEIKI promptly Gas for which there was an abnormality in the sensor cannot be detected However the alarm cannot be reset if there is an abnormality in all the sensors If there is an abnormality in the built in clock a fault alarm FAIL CLOCK may be issued Press the RESET switch The fault alarm is temporarily ...

Страница 26: ...eaked from its inside thus leading to dangers Be sure that excessive pressure is not applied to the gas monitor while used Do not connect the sampling hose directly to a location with a pressure higher than the atmospheric pressure The internal piping system may be damaged When the fresh air adjustment is performed in the atmosphere check the atmosphere for freshness before beginning the adjustmen...

Страница 27: ...lly corrected by the sensor which detects oxygen at the same time by feeding back a change in the oxygen concentration to the detection result of high concentration combustible gases If coexisting gases other than oxygen undergo a high concentration change the influence from the change cannot be automatically corrected This sensor is adjusted to be able to detect high concentration combustible gas...

Страница 28: ...rding about one second The following screens are displayed in turn on the gas monitor NOTE The screen displays the memory number date and instantaneous value in turn Go to the next step to execute recording No value is recorded at this point yet If you do not want to record a value press the DISPLAY switch to return to the detection mode 2 Press the ENTER switch The date and the instantaneous valu...

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Страница 30: ...tration or minimum concentration for oxygen detected during measurement from power on to the present STEL Value Display STEL Display the STEL value after power on TYPE A B C and D only TWA Value Display TWA Display the TWA value after power on TYPE A B C and D only Alarm Setpoint Display Alarm Test ALARM P Display the full scale and alarm setpoint values and check the alarm operations for the sett...

Страница 31: ...ess before beginning the calibration If other gases exist the adjustment cannot be performed properly thus leading to dangers when the gas leaks CAUTION Perform air calibration under pressure and temperature humidity conditions close to those in the operating environment and in fresh air Perform air calibration after the reading is stabilized If there is a sudden temperature change of 15 C or more...

Страница 32: ...s a gas alarm If the air calibration fails it displays FAIL AIR CAL and which sensor has become faulty Press the RESET swtich to reset the fault alarm calibration failure When the alarm is reset the value before calibration is displayed If CH4 sensor is faulty ...

Страница 33: ...ly TYPE A and E only ENTER Combustible Gas Measurement Range Setting P32 PEAK Value Display Display the maximum concentration or minimum concentration for oxygen detected during measurement from power on to the present STEL Display the STEL value after power on TYPE A B C and D only TWA Display the TWA value after power on TYPE A B C and D only Full Scale Display Alarm Setpoint Display Alarm Test ...

Страница 34: ...detection mode if the pump operation is set to OFF Pump ON OFF Setting Used to turn on off the pump operations ENTER Pump ON OFF Setting P35 ID Display Selection Display an ID if it has been registered in advance Also used to select an ID ENTER ID Display Selection P36 Log Data Display Display concentration data recorded to the manual memory ENTER Log Data Display P37 To Detection Mode ...

Страница 35: ...ting mode menu The following screens are displayed in turn on the gas monitor 2 Press the ENTER switch NOTE If you do not want to make a change press the DISPLAY switch to return to the display setting mode menu 3 Every time the or switch is pressed the measurement range menus AUTO RANGE automatic switching ONLY VOL fixed to the vol range and ONLY LEL fixed to the LEL range are displayed in turn P...

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Страница 37: ...point menus i e full scale display first alarm setpoint display second alarm setpoint display STEL alarm setpoint display and TWA alarm setpoint display are displayed in turn Press either the or switch to select a setting that you want to check Select one of the following screens Full Scale Display First Alarm Setpoint Display WARNING Second Alarm Setpoint Display ALARM STEL Alarm Setpoint Display...

Страница 38: ...o the display setting mode menu 3 Every time the ENTER switch is pressed the pump operation is turned ON or OFF Pump OFF Pump ON NOTE While the pump operation is set to OFF only the ENTER switch is enabled 4 To return to the detection mode press the ENTER switch to set the pump operation to ON 5 After completion press the DISPLAY switch several times until it returns to the detection mode CAUTION ...

Страница 39: ...rn to the display setting mode menu On this gas monitor either of the IDs from ST ID000 to ST ID255 has been registered unless otherwise specified The data logger management program option is required to register or change an ID Please contact RIKEN KEIKI 3 Press either the or switch to select an ID Every time the or switch is pressed the ID number increases or decreases 000 255 4 Press the ENTER ...

Страница 40: ...o select log data that you want to check The log data menu displays the year month day time and memory number 4 Press the ENTER switch to display the selected log data 5 If you want to display other log data press the ENTER switch to return to the log data menu Repeat the steps 3 5 6 After completion press the DISPLAY switch to return to the detection mode 4 9 How to exit Make the gas monitor draw...

Страница 41: ...m 50 ppm 500 ppm 25 ppm 200 ppm Buzzer Repeatedly sounds strong and weak beeps at about one second intervals Beep beep Repeatedly sounds strong and weak beeps at about 0 5 second intervals Blip blip Repeatedly sounds strong and weak beeps at about 0 5 second intervals Blip blip Repeatedly sounds strong and weak beeps at about one second intervals Beep beep Repeatedly sounds strong and weak beeps a...

Страница 42: ...nsists of two steps Each of them sounds when the respective alarm setpoint value is reached to or exceeded Second alarm setpoint Alarm lamp Buzzer Display example Alarm Pattern H HH Alarm Pattern L H oxygen deficiency alarm 1 second interval 0 5 second interval 1 second interval 0 5 second interval Concentration Concentration Time Time RESET RESET RESET First alarm setpoint Second alarm setpoint F...

Страница 43: ... functions Calibration History Various Trend Event History Functions The gas monitor has history and trend functions To use these functions contact RIKEN KEIKI NOTE The data logger management program option is required to use the history and trend functions Please contact RIKEN KEIKI Display example CAUTION To reset a low flow rate alarm FAIL LOW FLOW remove the cause of the low flow rate and then...

Страница 44: ... maintenance Battery Level Check Check that the battery level is sufficient Concentration Display Check Make the gas monitor draw in fresh air and check that the concentration display value is zero or 20 9 vol on the oxygen deficiency meter When the reading is incorrect perform the zero adjustment fresh air adjustment after ensuring that no other gases exist around it Flow Rate Check See the flow ...

Страница 45: ...t filter for dust or clogging Replaces a dirty or clogged dust filter Alarm Test Checks the alarm lamp and buzzer for normal operation using the alarm test function Span Adjustment Performs the span adjustment by using the calibration gas Gas Alarm Check Checks the gas alarm by using the calibration gas Checks the alarm Checks the alarm activation when the alarm setpoint is reached Checks the dela...

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Страница 47: ...monitor before replacing the activated carbon filter Do not remove the activated carbon filter knob unless the activated carbon filter is to be replaced If the activated carbon filter knob is loose not sufficiently tightened accurate measurement may not be possible due to leaks or water may get inside No activated carbon filter is used on a type that does not measure carbon monoxide Keep this knob...

Страница 48: ...E The above replacement intervals are recommendation only The intervals may change depending on the operating conditions These intervals do not mean the warranty periods either The result of the regular maintenance may determine when to replace the parts The operation of most of the periodical replacement parts must be checked after replacement by a qualified service engineer For the stable operat...

Страница 49: ...t deteriorated more quickly and may have shorter life If the gas monitor with a dry battery unit is not used for a long time store it after removing the batteries Battery leaks may result in fire or injury If the gas monitor is not used for a short time store it without removing the batteries While the power of the gas monitor is OFF the sensor is energized at all times Therefore it is necessary t...

Страница 50: ... recycle dustbin mark This symbol mark is indicated on the products which contain the batteries which fall under EU Battery Directive 2006 66 EC Such batteries need to be disposed of as specified by the latest Directive This symbol mark indicates that the batteries need to be separated from the ordinary waste and disposed of appropriately WARNING Do not disassemble the electrochemical type sensor ...

Страница 51: ... Disturbances by sudden surge noise etc Turn off and restart the gas monitor Key operations are disabled Disturbances by sudden surge noise etc In a non hazardous area remove the battery unit once and reinstall the battery unit and turn on the power to perform operations System abnormalities FAIL SYSTEM A circuit abnormality occurred Request RIKEN KEIKI for repair System abnormalities FAIL SYSTEM ...

Страница 52: ...ent fresh air adjustment Presence of interference gas Disturbances by interference gases such as solvents cannot be eliminated completely For information on actions such as removal filter please contact RIKEN KEIKI Slow leak A very small amount of the gas to be detected may be leaking slow leak Because ignoring it may cause dangers take a remedial measure i e taking actions the same as those for t...

Страница 53: ...ound Above 95 dB A 30 cm Gas alarm indication Lamp blinking Intermittent buzzer Gas concentration display blinking Gas alarm action Latched Trouble alarm self diagnosis System failure Sensor failure Low battery Calibration failure Flow failure Trouble alarm indication Lamp lighting Intermittent buzzer Content display Trouble alarm action Latched Specification of transmission IrDA Various functions...

Страница 54: ...rmittent buzzer Content display Trouble alarm action Latched Specification of transmission IrDA Various functions LCD backlight Data logger Peak hold Logged data display Pump stop Power supply Lithium ion battery unit BUL 8000 G BUL 8000 G1 Dedicated dry battery unit three AA batteries BUD 8000 G BUD 8000 G1 is available Continuous operation time BUL 8000 G BUL 8000 G1 Approx 12 hours 25 C Non ala...

Страница 55: ...sories Li ion battery unit BUL 8000 G BUL 8000 G1 AC powered charger Shoulder strap Gas sampling hose 1 m spiral Gas sampling probe Optional accessories Dry battery unit BUD 8000 G BUD 8000 G1 AA alkaline battery 3 Waist strap Waist strap fixing tool Carrying case leather Aluminum trunk case Shipboard storage box metal Sampling probe holder Gas sampling hose with float probe 8m Gas sampling hose 3...

Страница 56: ...viation for Threshold Limit Value Time Weighted Average Limit TWA refers to a concentration limit of toxic substances as a time weighted average to which repetitious exposure of almost all the workers in 8 hour work shift or a 40 hour work week does not have harmful effects on their health STEL An abbreviation for Threshold Limit Value Short Term Exposure Limit STEL refers to a concentration limit...

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