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GX-8000 Portable Gas Monitor Operating Manual

1. vol range only LEL range only NOTE During vol range only measurement vol and No ALARM displays blink 31 GX 8000 4 How to Use 4 8 Display setting mode lt Full Scale Display Alarm Setpoint Display Alarm Test ALARM P gt Display the full scale or alarm setpoint values and check the alarm operations for the settings displayed 1 Press the DISPLAY switch and select the full scale display alarm setpoint display alarm test from the display setting mode menu The following screens are displayed in turn on the gas monitor Yy d GPL AH as E 5 ENT 2 Press the ENTER switch to enter the alarm setpoint or other display NOTE If you do not want to enter any display press the DISPLAY switch to return to the display setting mode menu 3 Every time the A or V switch is pressed the full scale and alarm setpoint 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 A or V switch to select a setting that you want to check Select one of the following screens L Ds AULD MNA HEN ug rr rears a Full Scale Display First Alarm Setpoint Display second Alarm Setpoint Display WARNING ALARM MEINI sH PP CO STEL Alarm Setpoint Display TWA Alarm Setpoint Display TYPES A B C and D only 4 Press the ENTER switch to perform alarm
2. lt to 40 vol gt to 100 vol TE lt to 100 ppm gt lt to 500 ppm gt 1 LEL NC 1 vol TE Alarm setpoint 18 vol L 10 LEL 1st 5 ppm 1st 25 ppm 1st 25 vol H 50 LEL 2nd 30 ppm 2nd 50 ppm 2nd 40 vol OVER 100 LEL OVER 10 ppm TWA 25 ppm TWA 15 ppm STEL 200 ppm STEL 100 ppm OVER 500 ppm OVER Within 5 vol TE Response time 90 response within 90 response within 20 seconds seconds 30 seconds 30 seconds Concentration display LCD digital seven segment Symbol Bar meter Detection method Pump suction type Suction flow rate 0 75 L min or more Open flow rate Displays Clock display battery level display pilot indicator and pump driving indicator Buzzer sound volume 95 dB A or higher 30 cm Gas alarm display Lamp blinking intermittent buzzer sounding and gas concentration display blinking Gas alarm pattern Self latching Fault alarm self diagnosis System abnormalities sensor abnormalities battery voltage drop calibration failure and low flow rate Fault alarm display Lamp lighting continuous buzzer sounding and detail display Fault alarm pattern Self latching Transmission IrDA for data logger specifications Functions LCD backlight data logger peak display log data display and pump stop Power supply Dedicated lithium ion battery unit BUL 8000 G Dedicated dry battery unit lt AA alkaline dry batteries x 3 gt BUD 8000 G can also be used Continuous operating time BUL 8000 G About
3. Full Scale Display Alarm Setpoint ENTER Display Alarm Test i Setpoint Display Alarm Test Jt GPL RY Display the full scale and alarm setpoint values and check the alarm operations for the settings displayed amit Fike ha FT GX 8000 28 4 How to Use 4 8 Display setting mode Pump ON OFF Setting ENTER Pump ON OFF Setting Used to turn on off the pump operations Ti ID Display Selection ID Display Selection ENTER Display an ID if it has been registered in advance Also used to select an ID Log Data Display ENTER Log Data Display Display concentration data recorded to the manual memory m REC JATA To Detection Mode NOTE The gas monitor automatically returns to the detection mode in about 20 seconds if the gas monitor is left unoperated However the gas monitor does not automatically return to the detection mode if the pump operation is set to OFF 29 GX 8000 4 How to Use 4 8 Display setting mode lt Combustible Gas Measurement Range Setting HC RANGE gt TYPES A and E Only The models that can display combustible gas levels in two ways LEL range and vol range automatically switch between these two displays according to the gas concentration or oxygen concentration from LEL range to vol range and vice versa They also support manual selection of measurement range 1 Press the DISPLAY switch and select the combustible gas measurement range setting
4. 12 hours 25 C no alarm no lighting and battery fully charged BUD 8000 G About 6 hours 25 C no alarm and no lighting Below 95 RH Non condensing Explosion proof class Explosion proof No TC19439 certification number External dimensions Approx 154 W x 81 H x 127 D mm projection portions excluded Weight About 1 1 kg when BUL 8000 G is used or about 1 0 kg when BUD 8000 G is used Specifications subject to changes without notice GX 8000 48 9 Product Specifications 9 1 List of specifications lt Overseas Specifications gt Detection principle Galvanic cell type OS New ceramic type NC Electrochemical type Electrochemical type Thermal conductivity ES ES type TE Gas to be detected Oxygen O2 Combustible HC CH4 Hydrogen sulfide H2S Carbon monoxide CO and H2 lt to 40 vol gt to 100 vol TE lt to 100 ppm gt lt to 500 ppm gt 1 LEL NC 1 vol TE Alarm setpoint 19 5 vol L 10 LEL st 5 ppm 1st 25 ppm 1st 23 5 vol L 50 LEL 2nd 30 ppm 2nd 50 ppm 2nd 40 vol OVER 100 LEL OVER 10 ppm TWA 25 ppm TWA 15 ppm STEL 200 ppm STEL 100 ppm OVER 500 ppm OVER Accuracy of the reading Within 0 7 vol Within 5 LEL NC Within 1 5 ppm Within 15 ppm Within 5 vol TE Response time 90 response within 90 response within 30 90 response within 90 response within 20 seconds seconds 30 seconds 30 seconds Concentration display LCD digital se
5. 9110 Gill E mail intdept rikenkeiki co jp RIKEN KEIKI Web site http www rikenkeiki co jp lt Contents gt 1 Ouilime orhe FrodUCi Gemeente enn a eet nr neon enters ee ene nna ee eee 4 1 1 FTC Se careers occ eects AE EESE ernest abate AAEE N A E E AE 4 1 2 FI OS OS G osaa E E cee eee eee 4 1 3 Definition of DANGER WARNING CAUTION and NOTE cccecceeeeeeeeeeeees 4 2 Important Notices On Safety ccccccccssceccesececcesececeeseeeceuececsegeeesseseeessueeesseesessees 5 2 1 ANNO Sl CAS C N E E EA gua E 5 2 2 Warming CASCS siseasi e Ea eE EEE aE EEEa 6 2 3 PECO esea E A EEEE A E ER EE E E T 3 Product COMPONENAS cccccecccseececeececeeeeeaueeceeececeeeeseuceseeeeeseeceseeeessusetsueeeseeeesans 9 3 1 Main unit and standard accessories ccceccceeceseeeceeeeeeeeaeeeseeeeeeeeseeeseeesaeeeaneeseeees 9 3 2 Names and functions for each Palt cece cecccceececeececeeceeeeeeeseeceseeeessecesseeeesaeeesaes 10 4 POW VON E E EE P T A A A 13 4 1 Before using the gas MONItOM cccccsecceeceeeeeeaeeeeeeaeeeeeseeeeeseeeeesaeueeeseeeesseeeeesaaes 13 4 2 Preparation for Start Up ccccccccceccccsececeeeeeeeeeeeeeeeceeeessucesseeeeseeeeseeeesseetseeeseeeesees 13 4 3 Basic operating PrOCECUIES cccccccsecccececeeecaucecececueceucecueecueceueesueecsueseueeseeesauss 18 4 4 How to start the gas MONItOM cccccecccesceceseceseeceneececeueeseecens
6. above the inside of the battery icon starts to blink CA GX 8000 12 4 How to Use 4 1 Before using the gas monitor 4 How to Use 4 1 Before using the gas monitor Not only the first time users but also the users who have already used the product must follow the operating precautions Ignoring the precautions may damage the gas monitor resulting in inaccurate gas detection 4 2 Preparation for start up Before starting gas detection read and understand the following precautions Ignoring these precautions may prevent correct gas detection Check that the battery level is sufficient Check that there is no bend or hole in the gas sampling hose Check that the filter in the gas sampling probe is free of dust or clogging Check that the gas monitor gas sampling probe and gas sampling hose are connected properly lt Recharging of Batteries gt 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 A CAUTION Use the dedicated AC powered charger Recharge the batteries in a non hazardous area Recharge the batteries at ambient temperatures between 0 to 40 C Do not use the gas monitor while recharging it Correct measurements cannot be obtained Furthermore the batteries get deteriorated more quickly and may have a shorter life e The AC powered charger is not water proof or dust proof Do not recharge the
7. and we are not responsible for removal or replacement costs local repair costs transportation costs or contingent expenses incurred without our prior approval THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES AND REPRESENTATIONS EXPRESSED OR IMPLIED AND ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF RIKEN KEIKI CO LTD INCLUDING BUT NOT LIMITED TO THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IN NO EVENT SHALL RIKEN KEIKI CO LTD BE LIABLE FOR INDIRECT INCIDENTAL OR CONSEQUENTIAL LOSS OR DAMAGE OF ANY KIND CONNECTED WITH THE USE OF ITS PRODUCTS OR FAILURE OF ITS PRODUCTS TO FUNCTION OR OPERATE PROPERLY This warranty covers instruments and parts sold to users by authorized distributors dealers and representatives as appointed by RIKEN KEIKI CO LTD We do not assume indemnification for any accident or damage caused by the operation of this gas monitor and our warranty is limited to the replacement of parts or our complete goods GX 8000 52
8. batteries while the gas monitor is wet e The AC powered charger is not explosion proof 13 GX 8000 4 How to Use 4 2 Preparation for start up 1 Open the recharging jack cover of the gas monitor A CAUTION Do not pull the recharging jack cover too hard Recharging It may get damaged jack Put the AC Recharging jack plug into the power jack 2 Put the plug of the AC powered charger into the recharging jack of the gas monitor 3 Connect the AC powered charger to the wall electric outlet we ie When recharging is started the recharging indicator lamp lights up red Recharging time Three hours at the maximum until the batteries are fully recharged 4 When recharging is completed the recharging indicator lamp goes off 5 When recharging is completed disconnect the AC powered charger from the wall electric outlet 6 Pull out the AC powered charger plug from the power jack of the gas monitor and reattach the recharging jack cover Put the recharging jack cover as far as it will go A CAUTION Do not use the gas monitor with the recharging jack cover detached Dust or water may get into the gas monitor causing it to malfunction Replace the recharging jack cover if it is damaged e lf the recharging jack cover is not completely closed water may get in from the power jack The same thing occurs if a minute foreign substance is caught beneath the cover e Disconnect the AC powered charger fr
9. etc to get inside e Do not remove the panel sheet on the display The water proof and dust proof performances will be deteriorated e Do not affix a label on the infrared port Infrared communications can no longer be conducted 11 GX 8000 3 Product Components lt LCD Display gt 1 Pilot indicator ea SE HC LEL 02 a al 2 Combustible gas pmi Sh bs concentration digital ae d and bar display 3 Carbon monoxide Par a 8 concentration digital bg P a and bar display co ppm H235 spp af TA 60 4 Battery level icon aA bom Kt IEI 3 2 Names and functions for each part 5 Pump driving indicator 6 Oxygen concentration digital and bar display 7 Hydrogen sulfide concentration digital and bar display 8 Clock display 1 Pilot indicator Displays the operating status in the detection mode Normal Blinking 2 Combustible gas concentration digital and bar display 3 Carbon monoxide concentration digital and bar display Battery level display 5 Pump driving indicator 5 6 Oxygen concentration digital and bar display 7 Hydrogen sulfide concentration digital and bar display NOTE The meanings of battery level icons are as follows CEA Sufficient FAJ Low Needs recharging Displays the gas concentration as a numeric value and a level in the bar graph If the battery level is lower than the
10. from the display setting mode menu The following screens are displayed in turn on the gas monitor y 7 LEL NUEL HE HE GELELE E GELEE mf PANGE AT mari 6 TT SF 2 Press the ENTER switch NOTE lf you do not want to make a change press the DISPLAY switch to return to the display setting mode menu 3 Every time the A or V 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 Press the A or V switch to select a measurement range and press the ENTER switch HE SELELE w GMLY LEL 4 When END is displayed the setting is completed mE fi Zi The display setting mode menu is displayed again 5 After completion press the DISPLAY switch several times until it returns to the detection mode GX 8000 30 4 How to Use 4 8 Display setting mode A CAUTION e No gas alarm is triggered in the combustible gas vol range only setting In the vol range only setting the screen displays No ALARM because no alarm is triggered e Be careful because the LEL range only setting screen does not appear different from the auto range setting screen Even if the concentration exceeds the full scale the screen does not automatically switch to the vol range No ALARM display wo aLarm wise ae 2 oz Wa Zant z Wf F ee ee CH4 uy CH4 ra ra of 18 H25 ppm ig 7i
11. hazardous area take the following countermeasures for preventing dangers resulting from electrostatic charges 1 Wear anti static clothes and conductive shoes anti static work shoes 2 For indoor use use the gas monitor while standing on a conductive work floor with a leakage resistance of 10 MQ or less The battery units that can be connected are the BUL 8000 G certificate number TC19437 or BUD 8000 G certificate number TC19438 The specifications of the gas monitor are as follows Pump circuit Allowable voltage of 4 95 V allowable current of 1 12 A and allowable power of 1138 mW Combustible gas sensor circuit Allowable voltage of 4 95 V allowable current of 0 834 A and allowable power of 853 mW Buzzer circuit Allowable voltage of 4 95 V allowable current of 0 431 A and allowable power of 441 mW Main circuit Allowable voltage of 4 95 V allowable current of 0 717 A and allowable power of 733 mW Backup circuit 3 0 VDC 10 pA 9 GX 8000 3 Product Components 3 2 Names and functions for each part NOTE There are the following two combinations of battery units The following information is printed on the battery unit for the sake of identification to prevent a mistake in combinations e BUL 8000 certification number TC19437 gt BUL 8000 G e BUL 8000 certification number TC19438 gt BUD 8000 G Additionally a nameplate indicating a compatible model is affixed on the top of the battery unit Check
12. part and insert a new filter A CAUTION Make sure that the filter is inserted in correct orientation 3 Attach the tip that has been removed 41 GX 8000 6 Maintenance 6 4 Parts replacement How to replace the activated carbon filter 1 2 4 5 AN caution e Turn off the power of the gas 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 e No activated carbon filter is used on a type that does not measure carbon monoxide Keep this knob tightened at all times e Use only an activated carbon filter dedicated to the gas monitor GX 8000 Using a similar product may have harmful effects on the gas detection performance Using a coin etc turn the activated carbon filter knob ec e counterclockwise in a direction indicated as OPEN in this figure to remove it SSS Pull out to remove the filter case from the activated carbon knob Activated carbon filter knob Replace the two activated carbon filters in the filter case with new ones Filter case Attach the filter case to the activated carbon filter knob and put it as far as it will go Activated carbon filter Filter case Attach the activated carbon filter knob t
13. the W RESET switch pressed and press the A AIR switch to prepare for recording about one second The following screens are displayed in turn on the gas monitor reotis 2 amp Ses mrPEL JATA mYf5S ENT 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 value at the time when the ENTER switch is pressed are recorded 3 When END is displayed the recording is completed Returns to the detection mode 23 GX 8000 4 How to Use 4 5 How to detect lt Auto Range Switching Point gt TYPES A and E Only lf Auto Range is set on a type with the vol range for combustible gases the display is automatically switched to the vol range when the concentration of a detected combustible gas exceeds 100 LEL When the concentration drops the display returns to the LEL range again The following shows an example of switching timing Diagram of gas concentrations and range switching timing under Auto Range setting CH concentration 5 vol 1OO LEL mem ee ees 3 vol 60 LEL LEL range vol range LEL range A CAUTION An oxygen concentration higher than a certain level is required for the combustible gas LEL sensor of the gas mon
14. use a transceiver near the gas monitor Radio wave from a transceiver near the gas monitor may disturb readings If a transceiver is used it must be used in a place where it disturbs nothing Do not use the gas monitor near a device that emits strong electromagnetic waves high frequency or high voltage devices erify that the pump driving indicator is rotating before using the gas monitor If the pump driving indicator is not rotating gas detection cannot be performed properly Check whether the flow rate is lost Do not forget to perform a regular maintenance Since this is a safety unit a regular maintenance must be performed to ensure safety Continuing to use the gas monitor without performing a maintenance will compromise the sensitivity of the sensor thus resulting in inaccurate gas detection H 7 GX 8000 2 Important Notices on Safety 2 3 Precautions A CAUTION Pressing buttons unnecessarily may change the settings preventing alarms from activating correctly Operate the gas monitor using only the procedures described in this operating manual Do not drop or give shock to the gas monitor The water proof and explosion proof properties and accuracy may be deteriorated Do not use the gas monitor while recharging it Whereas the gas monitor can detect oxygen combustible gases carbon monoxide and hydrogen sulfide the operating environment may include gases that have harmful effects on the sensors of this unit Dif
15. 4 Hydrogen sulfide Carbon monoxide H2S CO TypeB Oxygen O2 Combustible HC and CH4 Hydrogen sulfide H2S Carbon monoxide CO TypeC Oxygen 02 Combustible HC and CH4 Hydrogen sulfide H2S TypeD Oxygen O2 Combustible HC and CH4 E Carbon monoxide CO TypeE Oxygen 02 Combustible Hc CH4 anaa TypeF Oxygen 02 _ Combustible HC CH4 andH2 SS Range 0 to 100 LEL NC to 100 vol TE specifications Only 0 to 100 LEL NC for other combustible gases 49 GX 8000 9 Product Specifications 9 2 List of accessories 9 2 List of accessories Li ion battery unit BUL 8000 G AC powered charger Shoulder strap Gas sampling hose 1 m spiral Gas sampling probe Dry battery unit BUD 8000 G 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 30 m with plummet Filter tube Filter tube fixing belt Water trap Relay tube Set of gas bags LEL VOL Span cans CALGAS 4 component mixed gas Demand flow valve Data logger management program Standard accessories Optional accessories GX 8000 50 10 Definition of Terms 9 2 List of accessories 10 Definition of Terms vol Gas concentration indicated in the unit of one hundredth of the volume Gas concentration indicated in the unit of one millionth of the volume LEL An abbrevia
16. G Ex ia IIC T4 Ambient temperature range for use 20 C to 50 C Ambient temperature range during battery charging 0 C to 40 C Electrical data Power supply of Li ion battery unit BUL 8000 Two parallel connected Li ion cells used in battery pack BP 8000 are from type Maxell INR18650PB1 Um 250V Power supply of alkaline battery unit BUD 8000 Powered by three series AA size alkaline batteries model LR6 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 2004 ed 4 0 EN60079 0 2006 IEC 60079 11 2006 ed 5 0 EN60079 11 2007 IEC 60079 26 2006 ed 2 EN60079 26 2007 WARNING Do not charge in hazardous location Do not charge it expect by genuine charger Do not replace battery unit in hazardous location Do not replace dry batteries in hazardous location Do not attempt to disassemble or alter the instrument Use only battery unit type BUD 8000 with three series connected Alkaline AA batteries type LR6 manufactured by Toshiba or use chargeable battery unit type BUL 8000 INST No 00000000000 A Manufacturing year 0 9 B Manufacturing month 1 9 XYZ for Oct Dec C Manufacturing lot D Serial number E Code of factory RIKEN KEIKI Co Ltd 2 6 Azusawa ltabashi ku Tokyo 174 8744 Japan Phone 81 3 3966 1113 Fax 81 3 3558
17. GX 8000 20 4 How to Use 4 5 How to detect 4 5 How to detect In the detection mode put the gas sampling probe close to the detection area and take the reading on the display Display example oLEL oz A F Pd F d lt Display example Ba Bala CH4 concentration O LEL LLL TL l pj anr oae a O2 concentration 20 9 ra ra ra CO concentration 0 ppm a i ame H2S concentration 0 ppm aA ssid Time 9 30 kge Battery level Sufficient A DANGER 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 use fire near the gas monitor A WARNING The gas monitor is designed to draw gases around it under the atmospheric pressure If excessive pressure is applied to the gas inlet and outlet GAS IN GAS OUT of the gas monitor detected gases may be leaked 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 fre
18. Sensor gt TYPES A and E Only A thermal conductivity sensor that detects high concentration combustible gases based on the principle of detection using a difference in thermal conductivities of gases may display a reading that is disturbed by a considerable change in the concentration of gases other than the combustible gases that coexist in the atmosphere However the influence of oxygen on readings can be automatically 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 gases in the air as well as in an nitrogen atmosphere If the composition of the atmosphere other than nitrogen is known in advance adjusting the sensor in accordance with the atmosphere can alleviate influences on readings For information on the adjustment procedure see the separate Maintenance Manual GX 8000 22 4 How to Use 4 5 How to detect lt Manual Memory gt Any instantaneous value during measurement can be recorded Up to 256 points of data can be recorded When the number of recorded data points reaches the maximum recorded data will be overwritten starting from the oldest data 1 In the detection mode keep
19. age low system abnormality and calibration failure Determine the causes and take appropriate actions If the gas monitor has problems and is repeatedly malfunctioning contact RIKEN KEIKI immediately lt Display Operation gt LCD display Displays an error message Alarm lamp Repeatedly blinks at about one second intervals B Repeatedly sounds intermittent beeps at about one second intervals uzzer Blip beep blip beep Display example NOTE e Toreset a low flow rate alarm FAIL LOW FLOW remove the cause of the low flow rate and then press the RESET switch e For information on malfunctions error messages see 8 Troubleshooting 5 3 Other functions lt Calibration History Various Trend Event History Functions gt 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 GX 8000 38 6 Maintenance 6 1 Maintenance intervals and items 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 e Daily maintenance Perform maintenance before beginning to work e Monthly maintenance Perform alarm test once a month e Regular maintenance Perform a maintenance once o
20. aintenance service e The followings are typical maintenance services For more information please contact RIKEN KEIKI Main Services Battery Level Check Concentration Display Check Flow Rate Check Filter Check Alarm Test Span Adjustment Gas Alarm Check Cleaning and Repair of Gas Monitor visual diagnosis Gas Monitor Operation Check Replacement of Consumable Parts Checks the battery level Verifies that the concentration display value is zero or 20 9 vol on the oxygen deficiency meter by using the zero gas Performs the zero adjustment fresh air adjustment if the reading is incorrect Checks the flow rate indicator to find abnormalities Checks the flow rate by using an external flow meter to verify the correctness of the flow rate indicator on the gas monitor If the flow rate is incorrect performs the flow rate adjustment Checks the dust filter for dust or clogging Replaces a dirty or clogged dust filter Checks the alarm lamp and buzzer for normal operation using the alarm test function Performs the span adjustment by using the calibration gas Checks the gas alarm by using the calibration gas e Checks the alarm Checks the alarm activation when the alarm setpoint is reached e Checks the delay time Checks time to delay until the alarm is triggered e Checks the buzzer lamp and concentration display Check each activation of ALM1 and ALM2 Checks dust or damage on surface of the gas mo
21. areful not to let water such as rainwater get into these parts Because this may cause trouble and gas cannot be detected Do not use the gas monitor where water or dirt gets accumulated The gas monitor placed at such a location may malfunction due to water or dirt that gets into the buzzer opening gas inlet etc Note that drawing in dirty water dust metallic powder etc will significantly deteriorate the sensor sensitivities Be careful when the gas monitor is used in an environment where these elements exist Do not use the gas monitor in a place where the temperature drops below 20 C or rises over 50 C The operating temperature of the gas monitor is 20 to 50 C Do not use the gas monitor at 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 ose Condensation formed inside the gas monitor or gas sampling hose causes clogging or gas adsorption which may disturb accurate gas detection Thus condensation must be avoided In addition to the operating environment carefully monitor the temperature humidity of the sampling point to prevent condensation inside the gas monitor or gas sampling hose Please observe the operating restrictions Do not
22. ased on your judgment 0 Battery level check Before use check that there remains sufficient battery power When the gas monitor is used for the first time or is not used for a long period the batteries may be exhausted Either fully recharge the batteries or replace them with new ones before use If a low battery voltage alarm occurs gas detection cannot be conducted If the alarm occurs during use turn off the power and promptly recharge the batteries in a non hazardous area H thers Do not throw the gas monitor into fire Do not wash the gas monitor in a washing machine or ultrasonic cleaner Do not block the buzzer sound opening No alarm sound can be heard Do not remove the battery unit while the power is ON GX 8000 6 2 Important Notices on Safety 2 3 Precautions 2 3 Precautions A CAUTION Do not use the gas monitor where it is exposed to oil chemicals etc Do not submerge the gas monitor under water on purpose Do not use in a place where the gas monitor is exposed to liquids such as oil and chemicals The gas monitor being compliant to IP67 is not water pressure resistant Do not use the gas monitor where a high water pressure is applied to it under a faucet shower etc or submerge it under water for a long time The gas monitor is water proof only in fresh water and running water and not in hot water salt water detergent chemicals human sweat etc The gas inlet and outlet are not water proof Be c
23. atteries in it 7 2 Procedures to use the gas monitor again A CAUTION When you use a stopped stored gas monitor again do not forget to perform a gas calibration For information on readjustment including gas calibration please contact RIKEN KEIKI GX 8000 44 7 Storage and Disposal 7 3 Disposal of products 7 3 Disposal of products A WARNING e Do not disassemble the electrochemical type sensor or galvanic cell type sensor because they contain electrolyte Electrolyte may cause severe skin burns if it contacts skin while it may cause blindness if it contacts eyes If electrolyte is adhered on you clothes that part on your clothes is discolored or its material is decomposed If contact occurs rinse the area immediately with a large quantity of water e Dispose of the batteries in accordance with procedure specified by the local authority 45 GX 8000 8 Troubleshooting 8 Troubleshooting The troubleshooting does not explain the causes of all the malfunctions which occur on the gas monitor This simply helps to find the causes of malfunctions which frequently occur If the gas monitor shows a symptom which is not explained in this manual or still has malfunctions even though remedial actions are taken please contact RIKEN KEIKI lt Abnormalities on Unit gt Symptoms Causes SCANS OOOO O The power cannot The battery level is too Li ion battery unit Recharge the batteries in a be turned on low non haza
24. e buzzer sound opening or clearances Drain water as follows 1 Wipe away moisture on the gas monitor thoroughly using a dry towel cloth etc 2 While holding the gas monitor firmly shake it about ten times with the buzzer sound opening facing downward 3 Wipe away moisture coming out from the inside thoroughly using a towel cloth etc 4 Place the gas monitor on a dry towel cloth etc and let it stand at normal temperatures 6 4 Parts replacement lt Replacement of Consumables gt Sensor Replacement The built in sensors of the gas monitor have a validity period and must be replaced regularly within two years The sensor life has expired if for example the sensors cannot be calibrated in span adjustment the readings do not come back after fresh air adjustment or the readings fluctuate Contact RIKEN KEIKI The warranty period is one year for all the sensors Dust Filter Replacement Procedure Because the dust filter may gradually get dirty or clogged over the time it must be replaced regarding the operating conditions Check the dust filter and then replace it as necessary The gas monitor has various built in filters Gas sampling probe The gas sampling probe has a built in Teflon filter Replace the filter when it has absorbed water has a low flow rate or looks significantly contaminated 1 Hold the transparent part and turn the tip white to remove it 2 Take out the filter from the transparent
25. e the gas monitor or leave it for a long time The gas monitor must be stored under the following environmental conditions e Ina dark place under the normal temperature and humidity away from direct sunlight e n a place where gases solvents or vapors are not present Store the gas monitor in a shipping carton if any in which the product was delivered Store the gas monitor away from dust etc if the shipping carton is not available A CAUTION If the gas monitor is not used for a long time turn on the power at least once every six months and check that the pump draws in air about three minutes The gas monitor when not activated for a long time may cease to work because of hardening of the grease in the pump motor NOTE e Ifthe gas monitor with a Li ion battery unit is not used for a long time it is recommended to store it after discharging the batteries until the battery level icon shows one battery mark or so If the gas monitor is stored with the batteries fully recharged the batteries get deteriorated more quickly and may have shorter life e Ifthe 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 to store the gas monitor with the b
26. eeeseesessueesseesenseeeneas 19 4 5 HOW tO doleCl issiron aeea a Earra 21 4 6 DING CS erur E E E a E E a 25 4 7 Air calibration MOOG isc ccccex diced sxaccdadeucecdenheteedsdenceae cneinededaetecsonasincdedsedecesteetactedesdeancds 26 4 8 Display Setting mode cccccceececcescecceseecceeececceuececseeeeseeeecseueeessausessegesessenseesaass 28 4 9 POW OG e a E a E ee eee ner oe eee 35 5 Operations and FUNCIONS isis pccc csaencceuteecesscseesecatencveaschcanscaneareisccescacaceaasensnhoscataeees 36 5 1 Gas alarm activation ccccccecccceececeeeeceeeeeceecececesaeeeeaeeceseeceseucesseetaneeeseeeesseeesanees 36 5 2 Fault alarm activation ccccccccccecccsececeeeceeeeeeeeseeeseeeeeeeeseceseeesseeeseeseeeseeeseeeseeesaees 38 5 3 Other TN IN Siac eee oe aie area ee Ses ewsaradeetene te ndaicesaden bane db nlabeendactanedeadshes iden taen tegetebee 38 6 IVAN FANN CO ogee eben cc davis sedan op cdddewencicbiuidandcadec wierd e aaa EEr ESAN Ra 39 6 1 Maintenance intervals ANd itemS ccccccceeceeeeceeeeeeeeaeeeseeeeeeeeaeeeseeeseueeseeeseeesaees 39 6 2 Gas Calibration Method cccccecccceeccceeeeeceececeeeeseecesaeeeeseeceseecessueesaeeeeseeeeseneessnees 40 6 3 How 8 Ok 6 lt 0 ee 41 6 4 Pane 00 FAC INCI aire eter n een ea AEE E ee anee teeters 41 T Storage and DISPOSAl sess scdeccticeccssneorecanatdacatantecsatadeaesassssedsaaenitaceranhoadacaccansnesssessacasses 44 7 1 Procedures to store the ga
27. ew ones in a non hazardous area GX 8000 46 8 Troubleshooting Symptoms Causes A low flow rate Water or oil etc was Check the gas sampling hose for any damage or mark of alarm is displayed drawn in drawn water or oil etc FAIL LOW FLOW The gas sampling hose Check the gas sampling hose for connections clogging is clogged twisting etc The pump has Request RIKEN KEIKI to replace the pump deteriorated Fresh air Fresh air is not supplied Supply fresh air adjustment cannot around the gas monitor be performed FAIL AIR CAL Clock Abnormalities of the Make a setting of Date Time abnormalities internal clock If such a symptom is observed repeatedly the built in FAIL CLOCK clock is seemingly malfunctioning Thus it must be replaced Please contact RIKEN KEIKI The batteries The charger is not Connect the AC powered charger to the wall electric cannot be connected properly outlet and jack properly recharged A recharging circuit Request RIKEN KEIKI for repair Li ion battery unit abnormality occurred only The batteries have been When fully recharged batteries are recharged again the fully charged recharging indicator lamp does not go on lt Abnormalities of Readings gt Symptoms The reading rises Drifting of sensor output Perform the zero adjustment fresh air adjustment drops and it Presence of interference Disturbances by interference gases such as solvents remains s
28. ferent 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 above gases such as high concentration sulfides halogen gases and silicone which may shorten the sensor life significantly or cause malfunctions such as inaccurate readings In case the gas monitor is used for detection in the presence of silicone etc be sure to check the gas sensitivities before using it again GX 8000 8 3 Product Components 3 1 Main unit and standard accessories 3 1 3 Product Components Main unit and standard accessories After opening the package check the main unit and accessories If anything in the following list is not included contact RIKEN KEIKI lt Main Unit gt lt Standard Accessories gt e AC powered charger 1 oe e Gas sampling probe and i gas sampling hose 1 GX 8000 main unit e Shoulder strap 1 e Operating manual Li ion battery unit e Product warranty A DANGER About explosion proo Do not modify or change the circuit or structure etc When measuring the oxygen concentration do not measure anything but a mixture of air and combustible gases or vapors and toxic gases When using this gas monitor in a
29. fre PTOE 0980 RIKEN KEIKI Portable Gas Monitor GX 8000 Operating Manual PT0 098 Request for the Customers Read and understand this operating manual before using the gas monitor Use the gas monitor in accordance with the operating manual Regardless of warranty period we shall not make any compensation for accidents and damage caused by using this product The compensation shall be made only under the warranty policy of products or parts replacement Because this is a safety unit a regular maintenance for every six months and regular maintenance must be performed If any abnormality was found in the gas monitor notify them to RIKEN KEIKI immediately RIKEN KEIKI Co Ltd 2 6 Azusawa ltabashi ku Tokyo 174 8744 Japan Phone 81 3 3966 1113 Fax 81 3 3558 9110 E mail intdept rikenkeiki co jp Web site http www rikenkeiki co jp english Safety information The Portable Gas Monitor Model GX 8000 is a gas monitor designed to provide continuous exposure monitoring of combustible gas oxygen O2 toxic gas such as carbon monoxide CO and hydrogen sulfide H2S in hazardous environments The gas sample is sucked in by build in micro pump The battery can be selected either Li ion battery or alkaline dry battery Li ion battery unit is called BUL 8000 and alkaline dry battery unit is called BUD 8000 The battery unit can be changed even by the end users Specification for safety Ga Ex ia IIC T4 Ex II 1
30. gases may blow out Never use fire near the gas monitor 5 GX 8000 2 Important Notices on Safety 2 2 Warning cases 2 2 Warning cases A WARNING The gas monitor is designed to draw gases around it under the atmospheric pressure If excessive pressure is applied to the gas inlet and outlet GAS IN GAS OUT of the gas monitor detected gases may be leaked 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 gas sampling hose directly to a location with a pressure higher than the atmospheric pressure The internal piping system may be damaged Handling of senso Do not disassemble the electrochemical type sensor or galvanic cell type sensor because they contain electrolyte Electrolyte may cause severe skin burns if it contacts skin while it may cause blindness if it contacts eyes If electrolyte is adhered on your clothes that part on your clothes is discolored or its material is decomposed If contact occurs rinse the area immediately 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 proper actions b
31. gt Keep the POWER switch pressed for three seconds or more lt LCD All LCDs light up ope AZAR ANTENIE EE OO 76 Alarm lamp lights up co y H Buzzer sounds once Beep O Teea TTT Date Time Display Battery Voltage Display G as Name Display Full Scale Display UT TT il TT TT ans a 93 a EA EA CLA L408 ppm H2S pam DENNEN a First Alarm Setpoint Display Second Alarm Setpoint Display 19 GX 8000 4 How to Use 4 4 How to start the gas monitor STEL Alarm Setpoint Display TWA Alarm Setpoint Display ID Display Detection Mode Buzzer sounds twice Beep beep A CAUTION After start up perform air calibration before performing gas detection air calibration mode NOTE e A sensor abnormality alarm is issued before the detection mode is entered if there is any abnormality in the sensor Press the RESET button This will reset the sensor abnormality alarm temporarily set the gas concentration display that was 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 e If there is an abnormality in the built in clock a fault alarm may be issued Press the RESET button The fault alarm is temporarily reset and measurement is started with incorrect clock time
32. itor to correctly detect gases and display concentrations For the sake of more accurate gas detection and concentration display therefore this gas sensor may perform detection using the vol sensor if the built in oxygen sensor of this unit detects an oxygen concentration lower than a certain level in the atmosphere In other words the display changes at the timing shown above when the oxygen concentration is equal to or higher than a certain level If it is lower than a certain level however the vol sensor is used for detection even if the combustible gas concentration is lower than the switching point Switching point Switching point GX 8000 24 4 How to Use 4 6 Modes 4 6 Modes Details on each meee are provided as follows Operations are slightly different depending on the type Mode _ _ LCD display Mode m Concentration display Normal state Mode x cH4 rs af o2 a Ye Pm i tm J e mom sa oe atts Air Calibration Perform the zero adjustment Mode gt Display and Combustible HC RANGE Used to select a combustible gas Setting Mode Gas 7 on measurement range manually Measurement C TYPES A and E only Range Setting GELErL La a mE PANGE Peak Display Display the maximum concentration or minimum concentration for oxygen detected during measurement from power on to the present STEL Value Display the STEL value after power on Display TYPES A B C and D only TWA Value Display
33. n the gas monitor 2 Press the ENTER switch to display the log data NOTE If you do not want to display the log data press the DISPLAY switch to return to the display setting mode menu 3 Every time the A or Y switch is pressed the log data menus are displayed in turn Press either the A or V switch to select log data that you want to check The log data menu displays the year month day time and memory number m ms a Hes ppm T TM vi oodd 5 If you want to display other log data press the ENTER switch to return to the log data menu Repeat the steps 3 to 5 6 After completion press the DISPLAY switch to return to the detection mode 4 9 How to exit Make the gas monitor draw in fresh air After the display returns to zero or 20 9 for oxygen keep the POWER ENTER switch pressed until the power is turned off NOTE If the display is not zero or 20 9 for oxygen when the power is turned off a purge operation may be performed for 30 seconds at the maximum to clean the inside of the gas monitor 35 GX 8000 5 Operations and Functions 5 1 Gas alarm activation 5 Operations and Functions 5 1 Gas alarm activation Gas alarm Triggered when the concentration of detected gas reaches or exceeds the alarm setpoint value lt lt Self latching gt gt Alarm display Notified by blinking of a gas concentration value display sounding of the buzzer and lighting of the lamp Alarm ty
34. ncentration do not measure anything but a mixture of air and combustible gases or vapors and toxic gases When using this gas monitor in a hazardous area take the following countermeasures for preventing dangers resulting from electrostatic charges 1 Wear anti static clothes and conductive shoes anti static work shoes 2 For indoor use use the gas monitor while standing on a conductive work floor with a leakage resistance of 10 MQ or less The battery units that can be connected are the BUL 8000 G certificate number TC19437 or BUD 8000 G certificate number TC19438 The specifications of the gas monitor are as follows Pump circuit Allowable voltage of 4 95 V allowable current of 1 12 A and allowable power of 1138 mW Combustible gas sensor circuit Allowable voltage of 4 95 V allowable current of 0 834 A and allowable power of 853 mW Buzzer circuit Allowable voltage of 4 95 V allowable current of 0 431 A and allowable power of 441 mW Main circuit Allowable voltage of 4 95 V allowable current of 0 717 A and allowable power of 733 mW Backup circuit 3 0 VDC 10 pA 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
35. nitor clean and repair such parts of the gas monitor Replaces parts which are cracked or damaged Uses the keys to check the operation of functions and parameters Replaces consumable parts such as a sensor filter and pump 6 2 Gas calibration method Perform span adjustment of sensors using a calibration gas at least once every six months The span adjustment requires dedicated equipment and a calibration gas Request RIKEN KEIKI for it If you perform the span adjustment for yourself prepare these tools in advance and perform the adjustment in accordance with the Maintenance Manual A CAUTION Do not use a lighter gas to check the sensitivity of the gas monitor A constituent of the lighter gas may deteriorate the sensor performances GX 8000 40 6 Maintenance 6 3 How to clean 6 3 How to clean Clean the gas monitor if it becomes extremely dirty The gas monitor must be turned off while cleaning it Use a waste cloth to remove dust Do not use water or organic solvent for cleaning because they may cause malfunctions Because an extremely large amount of dust inside the gas sampling hose may disturb the gas detection it must be cleaned with dry AIR etc A CAUTION When cleaning the gas monitor do not splash water over it or use organic solvents such as alcohol and benzene on it The surface of the gas monitor may be discolored or damaged NOTE When the gas monitor gets wet water may remain in th
36. o gas cannot be eliminated completely For information on actions such as removal filter please contact RIKEN KEIKI Slow leak Avery 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 the gas alarm Environmental changes Perform the zero adjustment fresh air adjustment In particular the galvanic cell type is affected by the air pressure A gas alarm is Presence of interference Disturbances by interference gases such as solvents triggered despite gas cannot be eliminated completely For information on of no gas leak and actions such as removal filter please contact RIKEN no other KEIKI abnormalities at Disturbance by noise Turn off and restart the gas monitor the detection If such a symptom is observed frequently take point appropriate measures to eliminate the noise Slow response Bended or clogged Fix the defective parts suction tube or exhaust tube inside the suction tube sensitivity impossible concentration sensitivity 47 GX 8000 9 Product Specifications 9 1 List of specifications 9 Product Specifications 9 1 List of specifications lt Japanese Specifications gt Detection principle Galvanic cell type OS New ceramic type NC _ Electrochemical type Electrochemical type Thermal conductivity ES ES type TE and H2 H2S lt Service range gt
37. o the main unit in an opposite procedure to Step 1 Tighten it firmly using a coin etc Push out A CAUTION If the knob is not completely tightened accurate gas measurement may not be possible due to leaks or water may get inside The same thing occurs if a minute foreign substance is caught beneath the knob GX 8000 42 6 Maintenance 6 4 Parts replacement lt Replacement of Regular Replacement Parts gt List of recommended regular replacement parts Menas hienas pises perunt S PR intervals pieces per unit 1 Rubberseal lt 2year Iset zo n a e a KEN Pump unit RP 11 6months 1 2yeas 1 Li ion a E BP 8000 About 500 cycles of charging and discharging NOTE 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 operation of the gas monitor and safety ask a qualified service engineer to take care of replacement of the parts whose operation must be checked Please contact RIKEN KEIKI 43 GX 8000 7 Storage and Disposal 7 1 Procedures to store the gas monitor or leave it for a long time T Storage and Disposal 7 1 Procedures to stor
38. om the wall electric outlet while it is not in use NOTE e During recharging the battery pack may get hot but this is not abnormal e 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 e When fully recharged batteries are recharged again the recharging indicator lamp does not go on GX 8000 14 4 How to Use 4 2 Preparation for start up lt Attaching Batteries gt when the optional unit BUD 8000 G is used When the gas monitor is used for the first time or when the battery level is low attach new AA alkaline batteries A CAUTION lt Replacement gt e 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 drop off or water may get in through the clearance Water may also get in if a minute foreign substance is caught beneath the battery unit lt Batteries gt e Use AA alkaline batteries Rechargeable batteries cannot be used 1 Using a flathead screwdriver or coin turn the battery Battery cover Battery cover fixing cover fixing screw counterclockwise to open the battery cover 2 Paying attention to the pola
39. onitor is a multi gas type that enables simultaneous monitoring of all of the following five types of gases at the maximum oxygen combustible gases and toxic gases carbon monoxide and hydrogen sulfide in the air and 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 this operating manual In addition to this operating manual an operating manual for the data logger management program option is available for the gas monitor Contact RIKEN KEIKI if it is needed 1 3 Definition of DANGER WARNING CAUTION and NOTE This message indicates that improper handling may cause serious damage on life health or assets This message indicates that improper handling may cause serious damage on health or assets A CAUTION This message indicates that improper handling may cause minor damage on health or assets NOTE This message indicates advice on handling GX 8000 4 2 Important Notices on Safety 2 1 Danger cases 2 Important Notices on Safety 2 1 Danger cases A DANGER About explosion proo Do not modify or change the circuit or structure etc When measuring the oxygen co
40. pes First alarm WARNING second alarm ALARM OVER alarm TWA alarm and STEL alarm lt List of Gas Alarms gt Alarm type OVER alarm TWA alarm STEL alarm 18 0 25 0 40 0 Japanese Japanese specification specification 19 5 23 5 Overseas Overseas specification specification eo fe gas Hydrogen 5 0 ppm 30 0 ppm 100 0 ppm 10 0 ppm 15 0 ppm sulfide Carbon 25 ppm 50 ppm 500 ppm 25 ppm 200 ppm monoxide Buzzer Repeatedly Repeatedly Repeatedly Repeatedly Repeatedly sounds strong sounds strong sounds strong sounds strong sounds strong and weak beeps and weak and weak beeps and weak beeps and weak beeps at about one beeps at about at about 0 5 at about one at about one second 0 5 second second intervals second second intervals intervals Blip blip intervals intervals Beep beep Blip blip Beep beep Beep beep Alarm lamp Repeatedly Repeatedly Repeatedly blinks Repeatedly Repeatedly blinks at about blinks at about at about 0 5 blinks at about blinks at about one second 0 5 second second intervals one second one second intervals intervals intervals intervals LCD display Gas Gas Gas Gas Gas concentration concentration concentration and concentration concentration and and OVER display and and WARNING ALARM display blink TWA display STEL display display blink blink blink blink GX 8000 36 5 Operations and Functions 5 1 Gas alarm activation lt Display Operation gt Gas Concentra
41. r more for every six months to maintain the performance as a safety unit Maintenance item Maintenance content Daily Monthly Regular E En ee ee Check that the battery level is sufficient Check Concentration Make the gas monitor draw in fresh air and check _ Display Check 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 3 He Filter Check Check the dust filter for dust or clogging Alarm Test Check the alarm lamp and buzzer for normal le operation using the alarm test function Span Adjustment Perform the span adjustment by using the calibration ff gas Gas Alarm Check Check the gas alarm by using the calibration gas 39 GX 8000 6 Maintenance 6 2 Gas calibration method lt About Maintenance Services gt e We provide services on regular maintenance including span adjustment other adjustments and maintenance To make the calibration gas dedicated tools such as a gas cylinder of the specified concentration and gas sampling bag must be used Our qualified service engineers have expertise and knowledge on the dedicated tools used for services along with other products To maintain the safety operation of the gas monitor please use our m
42. rdous area Dry battery unit Replace all the three dry batteries with new ones in a non hazardous area The power switch was For power on keep the POWER switch pressed until a not pressed long enough beep is heard about two seconds Improper installation of Check whether the power supply unit is properly the power supply unit attached to the main unit Abnormal Disturbances by sudden Turn off and restart the gas monitor operations surge noise etc Key operations are Disturbances by sudden In a non hazardous area remove the battery unit once disabled surge noise etc and reinstall the battery unit and turn on the power to perform operations System A circuit abnormality Request RIKEN KEIKI for repair abnormalities occurred FAIL SYSTEM System abnormalities FAIL SYSTEM Abnormalities of internal Error No 100 ROM Error No 010 oo Srintemal e aucet RIKEN KEIKMorrepair Abnormalities of internal Error No 021 FRAM Abnormalities of internal Error No 031 FLASH Sensor A sensor has failed Request RIKEN KEIKI to replace the sensor abnormalities Only at power on press the RESET switch to continue FAIL SENSOR the operation using only the normal sensors to detect other gases A low battery The battery level is low Li ion battery unit Turn off the power and recharge it ina voltage alarm is non hazardous area displayed FAIL BATTERY Dry battery unit Turn off the power and replace the dry batteries with n
43. rities of batteries replace all the three batteries with new ones 3 Close the battery cover and tighten the battery cover fixing screw Battery polarity Dry batt J aihh marks 15 GX 8000 4 How to Use lt Detaching Battery Unit gt 1 Loosen the two battery unit screws They need not be completely detached 2 Detach the battery unit 3 Attach a new battery unit N OTE Connection Make sure that the battery unit is installed in terminal correct orientation by checking the locations of the connection terminal and projection portions 4 Securely tighten the two battery unit screws A CAUTION Turn off the power of the gas monitor before replacing the battery unit Detach and reattach the battery unit in a non hazardous area If the battery unit screw is not completely tightened the battery unit may drop off or water may get in through the clearance Water may also get in if a minute foreign substance is caught beneath the battery unit Do not damage the rubber seal To maintain the water proof and dust proof performances it is recommended to replace the rubber seal every two years whether or not it has an abnormality GX 8000 16 4 2 Preparation for start up 4 How to Use 4 2 Preparation for start up lt Connection of Gas Sampling P
44. robe and Gas Sampling Hose gt e Attach the gas sampling probe to the end of the gas sampling hose e Connect the sampling hose securely to the gas inlet GAS IN of the gas monitor Insert the sampling hose to the gas inlet GAS IN until it clicks into place to ensure connection A CAUTION e Use only a gas sampling hose specified by RIKEN KEIKI e Use the gas monitor with the gas sampling probe connected so that no foreign substance is drawn into it e Connect a gas sampling probe and a gas sampling hose by fastening them manually without using any tool If they are fastened too tightly using a tool the plastic part of the gas sampling probe may be broken 17 GX 8000 4 How to Use 4 3 Basic operating procedures 4 3 Basic operating procedures Normally the detection mode is used for normal operations The detection mode is activated after the power is turned on lt lt Detection Mode gt gt RESET AIR long pressing lt lt Gas Alarm Status gt gt Self latching lt Reset after Recovery to Normal Status gt lt lt Air Calibration Mode gt gt co pa AFN TMG DISPLAY lt lt Fault Alarm Status gt gt Self latching lt lt Display and Setting Mode gt gt Y e x HE GELELE mHE PANGE GX 8000 18 4 How to Use 4 4 How to start the gas monitor 4 4 How to start the gas monitor lt lt Start up Procedure gt
45. rrectly detect gases and display concentrations e During combustible gas detection LEL range long time detection of a high concentration combustible gas may adversely influence the sensor e Use the gas monitor with the LCD display facing upward The gas monitor when used with the LCD display in a tilted or flat status may not display correct values NOTE e Ifthe combustible gas reading exceeds 100 LEL the CO reading rises temporarily but this is not abnormal e In a low temperature environment the operating time is shortened due to the battery performance property At a low temperature the response of the LCD display may get slow down e fa combustible gas with a higher concentration than LEL is drawn some gas may remain in the gas sampling hose due to adsorption in the hose gas sampling probe etc After drawing a high concentration combustible gas clean the gas monitor to remove the adsorbed gas draw fresh air and check that the reading becomes Zero Performing fresh air adjustment before cleaning it completely will result in inaccurate adjustment giving adverse influence on measurement In such a case remove the gas sampling hose before performing fresh air adjustment to avoid inaccurate adjustment e Perform gas detection in the vol range Type A and E only in a place where the presence of a high concentration combustible gas is known NOTE lt Influence of Coexisting Gases on High Concentration Combustible Gas
46. s monitor or leave it for a long time 0cceeeeeeeeees 44 1 2 Procedures to use the gas monitor AGAIN cccecccseeecceeeeceeeeeeeeeeseeeeseeeeeseeeeeeeeees 44 1 3 Disposal of products cps x deteesnccintiecbeedsmatvadeninseadodabeeed desu tsnacabesidecnoneseadsbectdedneadonadcbexided 45 8 TROUDIGSNOOUING issik a aa aaa AN Te Na aas 46 9 Product Specifications ccccccccsececsscecceeecceeecceeeecaeeeccuaecceeeecaeeesaueeseuaeseaeeenseeesoes 48 9 1 List of specifications annnennnennnennnennnennnernnrrinrrnrrrnrrrnnirnrrrerrrerrrenrrenrrnrrrerreerrnenne 48 9 2 List of aACCessories asics ios ctet eee peda ise inne nate cng ed aca laa need eee edionce 50 10 Definition Of TermMS sca cessed var cece epee eretac eet cleared bacoeeceeeaxtuataceeoct accede neceesane eed 51 GX 8000 3 1 Outline of the Product 1 1 Preface 1 Outline of the Product 1 1 Preface Thank you for choosing our portable gas monitor GX 8000 Please check that the model number of the product you purchased is included in the specifications on this manual This manual explains how to use the gas monitor and its specifications It contains information required for using the gas monitor properly Not only the first time users but also the users who have already used the product must read and understand the operating manual to enhance the knowledge and experience before using the gas monitor 1 2 Purpose of use This gas m
47. shness before beginning the adjustment If other gases exist the adjustment cannot be performed properly thus leading to dangers when the gas leaks Issuance of a gas alarm indicates that there are extreme dangers Take proper actions based on your judgment Before use check that there remains sufficient battery power When the gas monitor is used for the first time or is not used for a long period the batteries may be exhausted Either fully recharge the batteries or replace them with new ones before use If a low battery alarm occurs gas detection cannot be conducted If the alarm occurs during use turn off the power and promptly recharge the batteries in a non hazardous area Do not block the buzzer sound opening No alarm sound can be heard 21 GX 8000 4 How to Use 4 5 How to detect A CAUTION Before performing gas detection attach the gas sampling probe provided with the gas monitor to prevent disturbances by air dust e When you measure concentrations of oxygen in inert gases for a long time the carbon dioxide concentration in the air must be 15 or less When you use the gas monitor in the air with a carbon dioxide concentration of 15 or higher perform measurement in as short time as possible Using the gas monitor under high concentrations for a long time may shorten the life of the oxygen sensor e An oxygen concentration higher than a certain level is required for the combustible gas LEL sensor of the gas monitor to co
48. tection mode 33 GX 8000 4 How to Use 4 8 Display setting mode lt ID Display Selection ID SELECT gt Display an ID if it has been registered in advance Also used to select an ID 1 Press the DISPLAY switch and select the ID display selection from the display setting mode menu The following screens are displayed in turn on the gas monitor 2 Press the ENTER switch to set or select an ID NOTE e lf you do not want to set or select an ID press the DISPLAY switch to return to the display setting mode menu e On this gas monitor either of the IDs from ST ID000 to ST ID255 has been registered unless otherwise specified e The data logger management program option is required to register or change an ID Please contact RIKEN KEIKI 3 Press either the A or V switch to select an ID Every time the A or V switch is pressed the ID number increases or decreases 000 255 CT T TT m 37 7282 4 Press the ENTER switch 5 When END is displayed the setting is completed The display setting mode menu is displayed again 5 After completion press the DISPLAY switch several times until it returns to the detection mode GX 8000 34 4 How to Use 4 9 How to exit lt Log Data Display REC DATA gt Display concentration data recorded to the manual memory 1 Press the DISPLAY switch and select the log data display from the display setting mode menu The following screens are displayed in turn o
49. test The alarm operation on this screen can be checked Press any switch to stop the alarm operation 5 Press the DISPLAY switch to exit the alarm setpoint display or alarm test The display setting mode menu is displayed again 6 After completion press the DISPLAY switch several times until it returns to the detection mode GX 8000 32 4 How to Use 4 8 Display setting mode lt Pump ON OFF Setting PUMP OFF gt Used to turn on off the pump operations A CAUTION e While the pump operation is set to OFF no gas detection is performed because no gas is drawn e The gas monitor does not automatically return to the detection mode if the pump operation is set to OFF 1 Press the DISPLAY switch and select the pump ON OFF setting from the display setting mode menu The following screens are displayed in turn on the gas monitor Y f 1 SPiFAYS aa f GENT 2 Press the ENTER switch to set the pump operation to ON or OFF NOTE If you do not want to set the pump operation or ON or OFF press the DISPLAY switch to return to the display setting mode menu 3 Every time the ENTER switch is pressed the pump operation is turned ON or OFF Pump OFF 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 de
50. the TWA value after power on Display TYPES A B C and D only Alarm Setpoint Display the full scale and alarm setpoint Display values and check the alarm operations for Alarm Test the settings displayed L Ar Pump PUMP OFF Used to turn on off the pump operations ON OFF s Setting m PLUMP OFF ID Setting ID SELECT Display an ID if it has been set in advance Also used to change or set an ID Log Data Display data recorded to the manual Display memory 25 GX 8000 4 How to Use 4 7 Air calibration mode 4 7 Air calibration mode Press the AIR switch Keep pressing the AIR switch Changes the display to Adj HOLD AIR When RELEASE is displayed release the AIR switch A 30 second countdown is started on the LCD TYPES A and E only When the zero adjustment is successfully completed END is displayed and you return to the detection mode A WARNING When air calibration is performed in the atmosphere check the atmosphere for freshness before beginning the calibration If other gases exist the adjustment cannot be performed properly thus leading to dangers when the gas leaks A CAUTION Perform air calibration under pressure and temperature humidity conditions close to those in the operating environment and in fresh air e Perform air calibration after the reading is stabilized e lf there is a sudden temperature change of 15 C or more between the storage and operation loca
51. this information and use a correct combination Printing for identification 3 2 Names and functions for each part lt Outline Drawing gt 3 Alarm LED arrays 1 LCD displ 1 isplay 4 Infrared communication port 2 Buzzer sound opening SS 2 Buzzer sound opening 14 Activated carbon filter knob 9 Gas inlet GX 8000 10 3 Product Components 3 2 Names and functions for each part LCD display Displays gas concentrations alarms etc Buzzer sound opening Emits a buzzer sound at an alarm Do not block it Alarm LED arrays The lamp blinks in response to an alarm Infrared communication port Used to carry out data communications with a PC in data logger mode Ik E a 10 Gas outlet outlet Exhausts the Exhausts the gas drawn into the gas monitor Do not block it drawn into the gas monitor Do not block it Exhausts the gas drawn into the gas monitor Do not block it the batteries Serrone That ar a Te replaced ine Activated carbon filter knob Turn this knob to detach and replace the activated carbon filter No activated carbon filter is used on a type that does not measure carbon monoxide Keep this knob tightened at all times 15 Battery unit screws Turn these screws to detach and replace the battery unit A CAUTION Do not jab the buzzer opening with a sharp pointed item The unit may malfunction or get damaged allowing water or foreign substance
52. tion Display In a gas alarm the gas concentration display and the alarm type display blink HE i Fart he In case of over the detection range Over Scale NNN is p JL displayed on the LCD i i Display example The alarm consists of two steps Each of them is triggered when the respective alarm setpoint value is reached to or exceeded The alarm consists of two steps Each of them sounds when the respective alarm setpoint value is reached to or exceeded WA 1 second interval Alarm Pattern L H YH 1 second interval GAA 0 5 second interval oxygen deficiency alarm BZA 0 5 second interval RESET RESET RESET Alarm Pattern H HH Second alarm setpoint Second il setpoint gt Cc 3 O 2 2 2 2 de ea eben eee eae nee First alarm First alarm w setpoint setpoint 5 i i 5 c z D D O i O 6 i i 6 O 0 j O 0 I I Time Alarm lamp Buzzer IN WARNING Issuance of a gas alarm indicates that there are extreme dangers Take proper actions based on your judgment neras GX 8000 5 Operations and Functions 5 2 Fault alarm activation 5 2 Fault alarm activation Fault alarm Triggered when an abnormality is detected in the gas monitor lt lt Self latching gt gt Alarm display Notified by display of error messages sounding of the buzzer and lighting of the lamp Alarm types Low flow rate sensor abnormality battery volt
53. tion for Lower Explosion Limit LEL refers to the lowest concentration of a combustible gas in air capable of causing explosion when ignited TWA An abbreviation 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 of toxic substances to which everyday exposure of workers for 15 continuous minutes lower than TWA does not have harmful effects on their health 51 GX 8000 Warranty Policy RIKEN KEIKI CO LTD warrants gas alarm equipment sold by us to be free from defects in materials workmanship and performance for a period of one year from date of shipment from RIKEN KEIKI CO LTD Inc Any parts found defective within that period will be repaired or replaced at our option free of charge This warranty does not apply to those items which by their nature are subject to deterioration or consumption in normal service and which must be cleaned repaired or replaced on a routine basis Warranty is voided by abuse including mechanical damage alteration rough handling or repair procedures not in accordance with the operator s manual This warranty indicates the full extent of our liability
54. tions turn on the power of the gas monitor let it leave for about 10 minutes in a similar environment to the operation location and perform air calibration in fresh air before using it GX 8000 26 4 How to Use 4 7 Air calibration mode NOTE e Air calibration can be performed even when there is a gas alarm e lf the air calibration fails it displays FAIL AIR CAL and which sensor has become faulty Press the RESET button to reset the fault alarm calibration failure When the alarm is reset the value before calibration is displayed If CH4 sensor is faulty 21 GX 8000 4 How to Use 4 8 Display setting mode 4 8 Display setting mode This mode allows you to change various displays and settings Every time the DISPLAY switch is pressed various screens are displayed in turn Operations are slightly different depending on the type LCD Detection Mode Display and Setting Mode Combustible Gas Measurement p m x Combustible Gas Measurement Range Setting HE ENTER Range Setting Used to select a combustible gas measurement range manually GELECE TYPES A and E only wH PANGE PEAK 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 TYPES A B C and D only TWA Display the TWA value after power on TYPES A B C and D only gt
55. ven segment Symbol Bar meter Detection method Pump suction type Displays Clock display battery level display pilot indicator and pump driving indicator 95 dB A or higher 30 cm Fault alarm self System abnormalities sensor abnormalities battery voltage drop calibration failure and low flow rate diagnosis Fault alarm display Lamp lighting continuous buzzer sounding and detail display Fault alarm pattern Self latching specifications Functions Power supply Dedicated lithium ion battery unit BUL 8000 G Dedicated dry battery unit lt AA alkaline dry batteries x 3 gt BUD 8000 G can also be used Continuous operating BUL 8000 G About 12 hours 25 C no alarm no lighting and battery fully charged time BUD 8000 G About 6 hours 25 C no alarm and no lighting Operating temperatures 20 50 C Operating humidities Below 95 RH Non condensing Structure Drip proof and dust proof performances compliant to IP67 level Explosion proof Intrinsically safe explosion proof structure structure Explosion proof class Explosion proof KEMA10ATEX0085 ATEX IECEXKEM10 0038 IECEx certification number External dimensions Approx 154 W x 81 H x 127 D mm projection portions excluded Weight About 1 1 kg when BUL 8000 G is used or about 1 0 kg when BUD 8000 G is used Specifications subject to changes without notice lt Combinations of Detected Gases by Type gt TypeA Oxygen 02 Combustible HC and CH

GX-8000 Portable Gas Monitor Operating Manual

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