Gasman USA Manual Is..
Contents
1. Symptom Possible Cause Action No response to gas Gas cylinder empty Cylinder as needed Hose blocked or kinked Check gauge replace Ensure no restriction to flow Gasman fails gas test Gas cylinder empty Cylinder as needed Gas cylinder out of date Hose blocked or kinked Calibration drifted Gas flow not started immediately Check gauge replace Check date and replace as needed Ensure no restriction to flow Calibrate Gasman Repeat test starting gas immediately Gasman fails calibration Gas cylinder empty Gas cylinder out of date Hose blocked or kinked Calibration drifted Stabilization time too short Check gauge replace bottle as needed Check date and replace as needed Ensure no restriction to flow Calibrate Gasman Reset using PC soft ware Gasman passes gas test but will not enter calibration mode Menu Zero not performed Gasman not field calibration version Select Zero from menu Send for re configu ration Note Remove regulator from gas cylinder when not in use over a pro longed period For parts list see section XI One button Calibration will check for small drifts of stored calibration value but Crowcon recommends Gasman is sent for full certified calibra tion at six monthly intervals gt CROWCON Gas Detection You Can Trust 21 Maintenance and Calibration Gasman VII Maintenance and Calibration Gasman is2. Please see the section on replacement parts and acces sories Periodically bump test the sensor with gas to confirm its ability to respond to gas by exposing the detector to a targetted gas concentration that exceeds the high alarm setpoint Manually verify that the audible and visual alarms are activated It is recommended that the detector be cal ibrated before first time use and then at least once every 90 days and only by quali fied personnel For use in potentially explosive atmospheres where oxygen concentrations do not exceed 21 v v Do not turn off the detector during a work shift Turning off the detector resets the time weighted average gas exposure values to zero Ensure that the sensor is not blocked High off scale LEL readings may indicate an explosive concentration Only charge the battery using a Crowcon supplied charger Do not use any other charger Other charg ers may damage the detector making it unsafe for use in hazardous areas Do not change or charge batteries in a haz ardous location Doing so may lead to fire or explosion Flammable Gas Units Only Extended exposure of the flammable sensor to certain concentrations of combustible gases and air may stress the sensor ele ment which can seriously affect its per formance If an alarm occurs due to a high concentration of combustible gases recali bration should be performed or if needed the sensor repla
3. 1 To view the additional display Option menu double click the operator button The menu icons will appear on the screen as shown Note Only instruments for toxic gas monitoring will display the TWA menu option 2 Press the operator button with a single click to scroll across the list When the underscore appears under your choice double click the operator button If Peak or TWA is selected Gasman will display the icon on the operator screen gt CROWCON 11 Gas Detection You Can Trust Operation Gasman Peak test When performing a Peak test such as a vertical entry check previous readings can be cleared by selecting the Peak Reset menu option 1 Scroll 2 Select m Peak display Zero To perform Autozero select the Zero function from the menu When Zero is completed the instrument will return to normal Run mode 2 4 Logging Gasman incorporates both data and event logging which can be accessed using the RS232 communications link available with the Single Way Charger Plus PC Interface using Crowcon Portables PC software See section VIII for part numbers Data is recorded every minute this rate can be adjusted using the PC software The log can record 900 hours of data at 1 minute intervals Gasman also records the time and date for a number of operating and diagnostic events including 12 Switch on and switch off Level 1 Level 2 and Time Weighted Average Alarms TWA alarm on a
4. Portables PC software for the instrument to lock in the event of the calibration date expiring to prevent further operation of the instrument 3 Autozero Press the operator button with a single click to confirm Autozero Flammable and toxic units will be NB If Autozero set to read zero and oxygen units set to read s 20 9 If the operator button is not pressed within displayed 10 seconds Gasman will proceed directly to normal operation without performing a zero gt CROWCON 9 Gas Detection You Can Trust Operation Gasman Switch off To switch off the unit press and hold the operator button for 5 seconds The display will count down from 5 continue to hold the button until the unit counts down to shut off 2 2 Run mode The Gasman unit displays the gas reading on the operator display screen A typical display is shown below Screen Icons b x Warm up OK Flashing icon Gasman running The sensor channel will display the current value of the normally gas being monitored and units of measurement the ay _4 OK symbol will flash indicating unit is working cor Alarms Me AL 2 rectly Familiarize yourself with the gas currently being monitored in your unit Ensure you understand site H Battery health and safety procedures For information on Peak Ii and TWA readings go to section 2 4 Confidence signals NT aZe To reassure users the unit is working correctly the Gasman unit will emit
5. USA UL913 Canada CSA22 2 152 Operation EN50270 EN50271 IEC61508 EN61779 gt CROWCON Gas Detection You Can Trust 27 Accessories and spare parts Gasman XI Accessories and spare parts Accessory list Crowcon part number Description Single way chargers C01941 12 V DC input single way charger C01942 Single way charger with 230 V UK style power supply C01943 Single way charger with 230 V EUR style power supply C01944 Single way charger with 110 V US style power supply C01945 Single way charger with 90 260 V in line power supply C01297 Vehicle lighter socket lead C01940 Single Way Combined charger and PC interface C01947 Single way charger interface with 230 V UK style power supply C01948 Single way charger interface with 230 V EUR style power supply C01949 Single way charger interface with 110 V US style power supply C01950 Single way charger interface with 90 260 V in line power supply Multiway charger C01951 5 way Multicharger with 90 260 V in line power supply i modules 5011424 0 10096 LEL methane 5011436 0 100 LEL propane 5011437 0 100 LEL pentane 5011439 0 100 LEL butane S011440 0 100 LEL ethylene S011460 0 100 LEL hydrogen S011423 0 25 oxygen S011422 0 500 ppm carbon monoxide S011421 0 50 ppm hydrogen sulphide S011425 0 10 ppm sulphur dioxide S011429 0 1000 ppm hydrogen S011426 0 10 ppm nitrogen dioxide S011428 0 5 ppm chlorine S011432 0 1 ppm ozone S011430 0 25 ppm
6. a short beep accompanied by a blue LED flash every 10 seconds and the OK icon will flash 2 3 Display symbol guide Battery A full battery is represented by a battery icon showing a full three bars A low battery charge will show 1 bar When d J l zero bars are shown the battery icon flashes and the a sounder will emit warning bleeps If the battery becomes too low Gasman will switch off Full TWA alarm Gasman will display the TWA alarm when the 15 minute or 8 hour time weighted average alarm threshold is passed for toxic gases Gasman will display LTWA and STWA TWA alarms cannot be cleared 10 gt CROWCON Gas Detection You Can Trust Gasman Operation 2 4 Display options Gasman provides four additional selectable displays Peak display hd When Peak mode is selected the instrument shows the highest value for flammable and toxic gases or the lowest value for oxygen since switch on or last Peak Reset This is useful for vertical entry checks where the whole instrument can be lowered down the shaft rather than using a sampling tube and for viewing peak exposure at the end of a shift TWA display amp P Shows the 15 minute or 8 hour time weighted average TWA for toxic gases monitored since last turn on Peak Reset Before a Peak entry test is performed select this menu option to clear any previously stored Peak value Zero lt 0 0 Performs Zero on your Gasman unit How to display the menu
7. designed to operate almost maintenance free under most con ditions However some small items of routine maintenance are recom mended General To keep the display panel and operator button free from dirt build up reg ularly wipe over your Gasman unit with a damp cloth Filter Inspect the front filter at regular intervals for dirt or damage Clean as nec essary Zero and calibration Gasman is supplied with an Autozero function on start up This function can be configured to operate automatically on user confirmation see quick start guide or can be disabled This configuration can be set with the Crowcon Portables PC software see section VIII Gasman also has a Zero function in the menu See section 2 4 Crowcon recommends as a minimum a monthly gas test to confirm sen sor operation A test gas of known composition needs to be applied to verify sensor response and alarm function see section 6 1 Instrument calibration of sensor should be performed at 6 month regular intervals Calibration method Gasman calibration can be performed using the Gas Test Kit as per 6 3 or with Crowcon Portables PC software and calibration gas mixtures Appropriate certified calibration gases should be used Calibration gas is applied using the appropriate flow cap Refer to Crowcon Portables PC software help file for further information 22 gt CROWCON Gas Detection You Can Trust Gasman PC interface and software VIII P
8. hydrogen cyanide 28 CROWCON Gas Detection You Can Trust Gasman Accessories and spare parts 011435 0 50 ppm ammonia 011438 0 1000 ppm ammonia S011431 0 2 ppm phosphine S011434 0 1 ppm fluorine S011433 0 10 ppm hydrogen fluoride Sampling accessories M02340 Alligator Clip M04851 Flow cap C01937 Aspirator Assembly Calibration gas contact Crowcon required gases depend on sensor combination Carrying and wearing C01952 Harness Plate C01843 Shoulder Strap C01844 Chest Harness Straps C01953 Hard Hat Clip Communications E07532 PC Interface Lead C01832 PC Software C02097 USB to RS232 adaptor Spares consumables M04856 Rear Molding C03329 Metal Clip E01918 Disposable Battery E07621 i module Elastomer E07620 LCD Elastomer M04682 Sensor Sealing Ring MO3705 Clip retaining nut M3 MO3793 Case screw MO5910 Crowcon domed label EO1535 Power supply for charger 230 V for UK only EO1536 Power supply for charger 230 V for EUR only EO1537 Power supply for charger 110 V for USA only E01552 Power Supply for charger 230 V No plug E01553 Power Supply for charger 115 V No plug CO1979 Power supply for charger Universal 90 260 V gt CROWCON 29 Gas Detection You Can Trust Troubleshooting guide Gasman XII Troubleshooting guide Symptom error message Cause Instrument won t switch on Flat battery No confidence beep Gas reading when no gas present Unstable inaccura
9. innovative and rigorous design technology we have introduced several new features gt CROWCON 7 Gas Detection You Can Trust Introduction Gasman i module gas sensor Gasman uses unique plug and play i module sensor technology Each sen sor unit incorporates its own intelligent processor holding sensor configu ration and calibration data Different sensors can be purchased and once inserted are immediately ready to run Flammable units are only available with rechargeable batteries Plug and play will ease maintenance time and cost and the intelligent modular system will remove the need to calibrate the sensor Gasman can be reconfigured by purchasing an additional pre calibrated i modules from your local supplier Reliable anti shock mechanics and robust housing The Gasman housing is built from resilient material giving it strength and flexibility to withstand the hardest of working conditions water and dust tight to IP65 and IP67 with a non slip grip If the unit is dropped there will be no disruption of power or function ensuring reliability and service for years to come Software The internal software in Gasman has been designed and written in accor dance with the requirement of IEC 61508 to ensure quality and integrity of operation Gasman has been designed to give a truly reliable personal gas monitoring system The internal circuitry includes an independent watchdog the software monitors for any malfunction wi
10. over range to prevent burn out This locks out for 200 seconds after which a button press will reconnect power to the catalytic bead If the sensor power is reconnected when the unit is exposed to an over range gas con centration there is a risk of damage to the catalytic bead sensor Restart should be carried out in a known fresh air environment Depleted oxygen levels can reduce the combustible gas reading and if oxygen levels are below safe breathing limits it should be assumed that the combustible reading is low Electrochemical gas sensors toxic gases or oxygen contain chemicals Extreme levels of humidity can also cause problems The sensors are rated for an average ambient of 15 9096 R H However they are used from the tropics to deserts to tundra without this normally being a problem Water should not be allowed to collect on the sensor as this may impede gas diffusion Persistent exposure to high levels of toxic gas will shorten the life of toxic sensor If the high level gas is corrosive e g hydrogen sulphide damage may occur over time to metal components Sensors may be cross sensitive to other gases If unsure contact Crowcon or your local agent gt CROWCON 31 Gas Detection You Can Trust A HALMA GROUP COMPANY UK Office Crowcon Detection Instruments Ltd 2 Blacklands Way Abingdon Business Park Abingdon Oxfordshire OX14 1DY United Kingdom Tel 44 0 1235 557700 Fax 44 0 1
11. please see the troubleshooting guide in the first instance or contact Crowcon 5 To abort the gas test press the button at any time whilst the test is in progress 6 3 How to perform a one button calibration test To perform a one button calibration test you must first perform a Zero on your Gasman unit 1 Ensure you are in clean air Double click the button and select Zero from the Options menu Gasman will perform a Zero To perform a one button Calibration complete the next steps within 15 minutes of completing the Zero 2 Follow steps 1 to 3 given in 6 2 Gasman will display CAL and alternately Press the button to confirm one button Calibration If the button confirmation for calibration is not made within 10 seconds then the process will revert to test as in 6 2 3 Apply calibration gas following step 4 in 6 2 4 To abort the Calibration test press the button at any time whilst the test is in progress Your Gasman unit will adjust the value for the gas channel to match the stored calibration gas value within the sensor i module If your Gasman unit does not calibrate successfully Gasman will display FAIL Your Gasman unit must be sent for re calibration Gas Test pass and fail and calibration pass fail and values are stored in the Event log 20 gt CROWCON Gas Detection You Can Trust Gasman Gasman gas test accessory kit 6 4 Gas test calibration troubleshooting
12. the case to change the battery To replace the battery pack ensure you are in a safe non hazardous area Remove the back cover and remove the battery pack Replace the Lithium Cell then reinsert the battery into the instrument and replace and secure ly fasten the back cover 14 CROWCON Gas Detection You Can Trust Gasman Alarm indications IV Alarm indications Gasman provides two instantaneous alarm levels designated level 1 and level 2 For toxic gas sensors there are also two time weighted average alarms TWA one for short term exposure STEL based on a 15 minute time weighted average and the second TWA alarm is for long term expo sure based on a 8 hour time weighted average Alarm configurations are set via the Crowcon Portables PC software The following settings can be made Alarm thresholds for each sensor Level 1 and HL l level 2 alarms can be set for the gas sensor HL 7 B Alarm trigger This can be set to rising levels of gas concentration or as falling Oxygen units are set to falling for defi ciency monitoring Alarm latching Alarms can be set to be latched or unlatched Latched alarms will require the operator button to be pressed in order to clear the alarm This is the default setting Unlatched alarms will clear automatically when the gas hazard has passed Alarm mute The sounder can be set to mute for level 1 alarm only pressing the operator button during an alarm condition i e pre
13. 235 557749 Email crowcon crowcon com Web site www crowcon com Rotterdam Office Crowcon Detection Instruments Ltd Vlambloem 129 3068JG Rotterdam Netherlands Tel 31 10 421 1232 Fax 31 10 421 0542 Email crowcon crowcon net Web site www crowcon com USA Office Crowcon Detection Instruments Ltd 21 Kenton Lands Road Erlanger Kentucky 41018 1845 USA Tel 1 800 527 6926 or 1 800 5 CROWCON 1 859 957 1039 Fax 1 859 957 1044 Email sales crowconusa com Web site www crowcon com Singapore Office Crowcon Detection Instruments Ltd Block 192 Pandan Loop 5 01 Pantech Industrial Complex Singapore 128381 Tel 65 6745 2936 Fax 65 6745 0467 Email sales crowcon com sg Web site www crowcon com
14. C interface and software Gasman can be connected to a PC using the single way charger unit with optional PC interface The charger unit is fitted with a D type 9 pin R 232 Socket which is located at the rear of the charger see diagram below The PC requires Crowcon Portables PC software A USB RS232 adaptor is also available from Crowcon The software provides the user with access to reconfigure alarm levels operation run calibrations print reports and to access data and event log files Set up 1 Install Portables PC software on PC and attach the RS 232 cable to the charger and PC 2 Switch on the Gasman unit and drop it into the charger unit ensuring it is upright and the display is facing forward 3 Open the Portables PC software and either use the Wizard or the Engineer s Form select Gasman and upload the configuration For more information on using the Crowcon Portables PC software see installed help file gt CROWCON 23 Gas Detection You Can Trust i module replacement Gasman IX i module replacement 1 Ensure you are in a non hazardous safe area Switch off the unit 2 Remove the back cover by unscrewing the four M2 5 12 mm Allen screws as shown the in the drawing point 3 Lift off near corner and unclip the i module Installing or replacing an i module 1 Unwrap the i module from any packaging ensure the sensor is fully seated on the module board If replacing an i mo
15. Gasman Personal Gas Monitor ME jCROWCON October 2005 Issue 3 Gas Detection You Can Trust Safety Certification Gasman is classified to US standards by Underwriter Laboratories Inc as suitable for use in Class 1 Groups A B C D Division I locations Before use read the manual to ensure a full understanding of how to operate the unit and as to any limitations of use Si Fo DG uNES KINGDOM n ONLY AS TO INTRINSIC SAFETY FOR L USE IN HAZARDOUS LOCATIONS UL CLASS DIV I GROUPS A B C D EA TEMPERATURE CODE T4 FOR INTRINSIC SAFETY PRECAUTIONS SEE MANUAL WARNING UNDERSTAND MANUAL BEFORE OPERATING ONLY CHANGE BATTERY IN A NOW HAZARDOUS AREA Ei ia lICTA AF 20 C Ta 149F 65 C IIC T4 mE 20 C Ta 149F 65 C EEFAO4ATEX0384 ea BAS 05 0039 QXU IDY N I UNTED KINGDOM Os IN HAZARDOUS LOCATIONS UL CLASS DIV I GROUPS A B C D 66Y6 TEMPERATURE CODE T4 FOR INTRINSIC SAFETY PRECAUTIONS SEE MANUAL WARNING UNDERSTAND MANUAL BEFORE OPERATING ONLY CHARGE BATTERY IN A NON HAZARDOUS AREA EEx ia d IIC T4 4F 20 C Ta 149F 65 C Ex ia d IIC T4 4F 20 C Ta 149F 65 C BASEEFAO4ATEX0383 IECEx BAS 05 0038 CE 1180 Warning To avoid possible personal injury Substitution of components may impair intrinsic safety Do not use the detector if it is damaged or something is missing contact Crowcon immediately Use only sensor modules specifically designed for your Gasman
16. Run mode without performing Zero The third option is to disable the Autozero completely Autozero confirm Screen Icons N iw w Warm up OK Flashing icon Gasman running normally AL Alarms AL 2 gl Battery i Your unit is now ready to use NT Aulorero Familiarize yourself with the gas being monitored in your unit and make sure you understand site health and safety procedures in the event of alarm conditions CROWCON Gas Detection You Can Trust Gasman Quickstart guide Confidence signals In normal Run mode Gasman will emit a short beep accompanied by a blue LED flash every 10 seconds and the OK icon flashes to show operational health These confidence signals can be disabled using the PC software 2 In the event of an alarm Alarm signals In the event of gas concentrations exceeding the alarm thresholds for the gas being monitored Gasman will activate the alarm signals Alarm signals The red and blue alarm LEDs will flash the sounder will emit a loud fast series of beeps the internal vibrator alarm will activate The operator screen will display the alarm level and gas reading alternately See the figure to the left AL 1 Alarm level one AL 2 Alarm level two 1 When the gas level returns to normal press the operator button This will reset your Gasman unit to normal Run mode If the gas level is still in alarm the button will have no effect The Gasma
17. ced Do not test the combustible sensor s response using a butane lighter Doing so may damage the sensor Prior to each days usage sensitivity must be tested on a known concentration of methane equivalent to 25 50 of full scale concentration accuracy must be within 022096 of actual Accuracy may be cor rected by recalibrating the instrument Any rapid up scale reading followed by a declining or erratic reading may indicate a gas concentration beyond the upper scale limit which may be hazardous Caution CAUTION For safety reasons this equipment must be operated and serviced by qualified personnel only Read and understand instruc tion manual completely before operating or servicing ATTENTION Pour des raisons de s curit cet quipement doit tre utilis entretenu et r par uniquement par un personnel qualifi tudier le manuel d instructions en entir avant d utiliser d entretenir ou de r parer l quipement To avoid damage to the detector Do not expose the detector to electrical shock or severe mechanical shock Do not attempt to disassemble adjust or service the detector unless instructions for that procedure are contained in the manu and or that part is listed as a replacement part Only use Crowcon replacement parts v Crowcon Detection Instruments Ltd 2 Blacklands Way Abingdon OX14 1DY UK Tel 44 0 1235 557700 Fax 444 0 1235 557749 WWNW crowcon com Email sales
18. crowcon com Do not immerse the detector in liquids The detector warranty will be voided if cus tomer personnel or third parties damage the detector during repair attempts Non Crowcon repair service attempts void this warranty Gasman Personal Gas Monitor Contents UNPACKING 3 3 d dae eae yest gl ote tede debts 1 Quickstart guide n anaana illis 3 IRITLOCUGLION o ON Oe S ees eios des 7 Operation bed LubP RE ene EAS 9 Batteries x ioi ie Va A et EO SMS EYE GARS 13 Alarm iridications 44er renes ue E esi 15 Fixing accessories 2 17 Fow sampling i5 in ct deae tp pbi eR ttes 18 Maintenance and calibration 22 PC interface and software 0 005 23 i module replacement 0000005 24 Specification steno cadet ege tex oe ba ees RE 26 Accessories and spare parts 28 Troubleshooting guide 2 20005 30 Appendix Limitations of sensors 31 Gasman Unpacking Gasman Personal Gas Monitor Thank you for purchasing the new Gasman Personal Gas Monitor Gasman has redefined portable gas monitoring and will give you years of unparalleled service and reliability Please read the instructions carefully before use Keep the manual for future reference Unpacking Remove the Gasman Personal Gas Monitor from the packaging The Gasman accessories will be located in the bottom of the box Check the conten
19. dule with one of the same type instrument specific configuration will be retained If replacing with a different i module its default configuration will be loaded 2 Ensure the gasket is in place on the sensor slip the sensor onto the sensor housing Click the quick release fixings around the 24 CROWCON Gas Detection You Can Trust Gasman i module replacement i module board ensuring the i module is held in place firmly and the sensor is still tightly located on the module board 3 Place the Gasman unit face down on a surface 4 Unclip the i module from its retaining support clip Ease one side out at a time Ensure the elastomer which is retained with the body of the support clip remains in place 5 Unpack the new i module and carefully clip it into the support clip 6 Replace the back of the Gasman case 7 Switch on the Gasman unit The new i module will be automatically recognized 8 Crowcon advise carrying out a calibration check when any new sensor is fitted Re assembling the Gasman unit 1 Replace the back cover and tighten the screws 2 Switch on your Gasman unit The new sensor will be automatically identified Check the filter is in good condition Replace if any items are faulty Refer to the troubleshooting guide if necessary gt CROWCON 25 Gas Detection You Can Trust Specification Gasman X Specification Dimensions 90 x 48 x 24 mm 37 x 1 9 x 1 inches Weight 130 g
20. ed to maintain compliance with certification CROWCON Gas Detection You Can Trust Gasman Quickstart guide Quickstart guide 1 Getting started Review your Gasman unit Gas Sensor Sounder outlet Operator Button Operator LCD Display Screen CROWCON Switching on your unit Gasman requires little setting up follow these simple steps to get your unit ready for use 1 Ensure the unit is in clean air 2 Switch on Press and hold the operator button for approximately 3 seconds until the red LEDs flash The operator display screen will light up and the unit will begin a warm up sequence gt CROWCON Gas Detection You Can Trust Quickstart guide Gasman Gasman warm up sequence vu c paar au a The unit will test the alarm Sounder LEDs sounder vibration alerts Alarm test and the operator display ANS f screen The sounder may be XN silenced by pressing the button 2 JJ Vibrator Alarm test b The unit will continue through a warm up sequence as shown e lt below this will take approximately 20 seconds Autozero There are three Autozero options available The default setting for the US will run the Autozero function automatically with no input from the user The second option is the manual confirmation of the Autozero with a single click of the operator button If this button is not pressed within the 10 second time out Gasman will proceed directly to
21. flammable 105 g oxygen 90 g toxic Housing degree of protection Ingress protection IP65 NEMA 4 amp IP67 Operating temperature 20 to 55 C 4 to 131 F Humidity 0 99 RH non condensing for continuous operation Display Custom LCD with backlight Starburst charac ters for number and text display plus screen icons for status and mode Warm up time 1 minute maximum Response time typical T90 approx 20 seconds for most toxic and flammable sensors 10 seconds for oxygen Audible Alarms 95 dBA Multiple alarm sounds allow selection of distinctive tones for different alarms Visible Alarms Dual color red blue flashing LEDs in gas hazard Vibrating Alarm Internal vibrating alarm Repeatability 2 FSD 6 months Explosion protection Intrinsically Safe ATEX Safety certificate no Essential Health and Safety Requirement clause 15 9 BASEEFAO4ATEX0383 Flammable Gas BASEEFAO4ATEX0384 Oxygen or Toxic Gas IECEx IECExBASO5 0038 Flammable Gas IECEXBASO5 0039 Oxygen or Toxic Gas Approval codes Europe ATEX II 1G EEx ia IIC T4 Tamb 20 to 65 C Toxic Oxygen ATEX II 2G EEx ia d IIC T4 Tamb 20 to 65 C Flammable USA Class 1 Division 1 Groups A B C and D Canada Approvals pending 26 CROWCON Gas Detection You Can Trust Gasman Specification Standards Safety EN50014 EN50020 EN50018 94 9 EC
22. into a mains socket and connect to the charger 3 To charge your Gasman unit simply drop the Gasman into the charger in an upright position with the screen facing outwards see diagram below Power Supply Green LED charging complete 12 V dc Red LED unit charging gt CROWCON 13 Gas Detection You Can Trust Batteries Gasman The Gasman unit would normally be left switched off for charging and will display a battery icon on the display screen sweeping from empty to full During charging the red LED on the front of the charger unit will be lit When charging is complete the green LED on the charger unit will illuminate If the unit is switched on during charging the normal display will show the battery icon sweeping from empty to full On removing Gasman from the charger unit the display icon will update in 20 seconds to show actual charge state The charging time will be longer if the unit is switched on during charging Gasman is fully charged when the charging battery icon is flashing and the green LED on the charger unit is illuminated In Run mode the battery icon will display three bars when it is full Changing rechargeable batteries It is recommended that rechargeable batteries should be changed by an authorized Crowcon service centre 3 3 Non rechargeable batteries Gasman uses a Lithium Cell battery pack which will give up to two years of operation Always switch the Gasman off before opening
23. larm off and the peak level during the alarm Zero calibration and gas test with success or failure Flammable sensor saver on and off The battery condition is logged every switch on and switch off while the instrument is operating and certain configuration changes are also logged The Event log can record over 4800 events CROWCON Gas Detection You Can Trust Gasman Batteries Ill Batteries 3 1 Rechargeable batteries Recharge time for the Li ion batteries is less then 6 hours less if they are not fully discharged Rechargeable batteries will typically last 12 hours for flammable units 3 2 Gasman Charging Unit There are 3 models of charging units available for Gasman a single way drop in charger unit a single way charger unit with integral PC Interface and a multiway charger unit The multiway charger unit can accommodate up to 5 Gasman units Note the multiway charger unit does not have a PC interface option The charger units are powered by a nominal 12 V dc input Power sup plies are available with UK EUR or US pins Alternately an in line supply of 230 V or 115 V or a universal 90 260 V power supply are also available for any other configuration The multiway charger includes a universal power supply A vehicle lighter socket lead can also be supplied please see section XI Parts and Accessories Charging the batteries 1 Ensure you are in a safe area 2 Plug the charger power supply
24. lowing the user to wear Gasman on a belt sleeve jacket lapel etc Universal harness plate Crowcon provide a universal harness plate which can be used with either a chest harness or a shoulder strap How to wear your Gasman unit Chest harness C72 Shoulder neck Use the M3 fixing on the back of yi 3 sonneetors your Gasman unit to attach the Ra chest harness plate Create a CES O5 3 M3 nut chest harness by attaching e d i Waist strap to the top connectors to go ST L S connectors around the neck and the other to w link around the waist using the side connectors Adjust the lengths until the Gasman unit is in a comfortable working position Ghost harness plate Shoulder strap With the universal harness plate in place on the belt clip attach the shoul der strap accessory onto the top connectors Adjust to a comfortable working position See accessories section XI for full list CROWCON 17 Gas Detection You Can Trust Flow sampling Gasman VI Flow sampling Attaching the flow cap To perform manual sampling using Gasman a flow cap must be fitted onto the front of the unit over the sensor A flow cap is included with your Gasman unit AN oO 1 To fit the flow cap slip the flow cap over the sensor on the front of your Gasman unit until the cap is tightly fitted into place 2 Attach the sampling tube or flow accessory onto the gas inlet nozzle 3 Attach the aspirat
25. n alarm is set to latch by default The unit will still continue in alarm mode even when the gas level returns to normal pressing the operator button will clear the alarm 3 Switch off unit and storage Switching off unit 1 Press and hold the button for 5 seconds until the display shows OFF The display will count down to switch off P CROWCON 5 Gas Detection You Can Trust Quickstart guide Gasman Storing conditions In order to optimize sensor performance and lifetime your Gasman unit should be stored in a safe non hazardous area 0 30 C 10 90 RH 4 Additional information For battery recharging information go to section Ill For fixing accessories go to section V For sampling section go to section VI For calibration information go to section VII For troubleshooting guide go to section XII 6 CROWCON Gas Detection You Can Trust Gasman Introduction I Introduction Thank you for purchasing the new Gasman Personal Monitor Gasman is a portable single gas detector designed to be carried or worn by individ uals working in hazardous environments such as confined spaces It is suit able for use in classified hazardous areas Gasman monitors a single gas and displays the reading on a display screen Alarm warnings are given through a combination of a loud audible alarm a bright visual alarm of blue red flashing LEDs and an internal vibrator Gasman can be fitted with a wide range of modular plug and
26. or bulb onto the gas outlet nozzle 4 To remove the flow cap gently tease the cap from the sensor and lift the cap away from the instrument When using the manual aspirator kit adopt a consistent style whilst using the hand aspirator Crowcon recommend squeezing once per second to achieve a flow rate of approximately 0 5 1 litre min At least 10 pumps per sample are recommended The sampling tube supplied is normally a 2m 6ft length Longer lengths of sampling tube can be provided but will increase the time taken to get a sample from the point of sampling to the Gasman instrument When using an extended length of tubing a response time test is recommended Gas of known concentration should be sampled along the full length of tubing to be used and the time taken for the sensor reading to reach the known gas levels should be noted This time should be used as the minimum for sampling before readings should be taken 18 CROWCON Gas Detection You Can Trust Gasman Gasman gas test accessory kit Gasman gas test accessory kit The Gas Test Accessory is a gas testing kit designed to enable gas testing and one button calibration of your Gasman gas detector using a special ly formulated high stability long life single gas mix It can be used with Gasman units having sensors for Flammable Oxygen Carbon Monoxide and Hydrogen Sulphide gases 6 1 Gas testing Gas testing checks the sensor is responding within set limits to an applied ga
27. play gas sensors The sensor carries an intelligent processor which contains calibration and sensor information Gasman is battery operated and is available with rechargeable batteries or dry cell battery options The dry cell battery option is only available for tox ics and oxygen Gasman units A battery charger for single and multiple Gasman units is available for rechargeable units see section XI for more information At Crowcon we recognized the need for a reliable and robust personal monitoring system which is both small light and easy to use Gasman has a single operator button and an intelligent user friendly display with automatic backlight The gas level is continuously monitored providing normal gas readings peak readings and time weighted averages TWA Gasman is available as a diffusion sampling instrument see section XI for sampling accessories Configuration and data event logging is handled by Crowcon Portables PC software the PC communication link is provided as a link on the charger unit Gasman s compact shape and design makes it comfortable to wear and as non intrusive as possible with a non slip grip for better handling Extra accessories such as pocket clip hard hat clip alligator clip shoulder strap and chest harness can be purchased Gasman has been designed from top to bottom to bring you a lighter compact design with single button operation for ease of use mainte nance and extreme reliability Through
28. s of known composition This can be performed as often as desired but would usually be carried out each time the Gasman is issued for use The Gasman itself will determine Pass Fail status for the gas test In order to perform successful gas tests ensure The gas used has the correct gas concentration and that it is within the validity date specified by the supplier The gas flow path is leak tight It is important to check that the flow cap is properly fitted to the Gasman unit and the outlet tubing is not restricted in any way nor additional tubing length used The Gas Test Accessory Kit comprises a gas cylinder containing the gas a regulator with interconnect tubing a magnet used to activate Test mode a flow cap to attach to the Gasman and a vent line 6 2 How to perform a gas test 1 Ensure your Gasman unit is switched on and in normal operation 2 Fit the flow cap onto the front of the sensor and attach the hose from the regulator Attach the outlet hose to vent gas away do not extend this hose and do not restrict or allow kinks 3 Swipe the magnet passed the Crowcon label Your Gasman unit will activate the Gas Test and show TEST on the display 4 Gasman will display a progress bar Apply the gas whilst the progress bar is counting down Gasman will display PASS or FAIL gt CROWCON 19 Gas Detection You Can Trust Gasman gas test accessory kit Gasman In the event Gasman displays FAIL
29. sence of hazardous gas will silence the sounder and stop the vibration alarm The alarm LEDs will continue to flash Alarm sounder tone Different distinctive tones can be selected for the each alarm condition to achieve the best performance for the monitoring conditions available In the event of a Time Weighted Alarm TWA In the event the 15 minute or the 8 hour TWA is triggered Gasman will go into alarm and display a TWA warning with the toxic gas readings The 8 hour TWA alarm cannot be cleared H 2 amp 0A A a A a H P CROWCON 15 Gas Detection You Can Trust Alarm indications Gasman In the event of a Flammable overange alarm If flammable gas concentrations exceed 10096 LEL quququ Gasman locks into alarm and displays 9999 showing an overange condition Gasman will temporarily cut off power to the sensor to prevent burn out and display a progress bar for 200 seconds When the timeout is complete either press the button to continue or optionally switch your unit off and on to restart This option is programmable with Crowcon Portables PC software 16 gt CROWCON Gas Detection You Can Trust Gasman Fixing Accessories V Fixing Accessories Clip Accessories Gasman is supplied with a simple pocket clip other clip options are Hard hat clip Allows Gasman to be clipped to a hard hat a method of wearing a portable gas detector preferred by many users Alligator clip A strong alligator clip al
30. te gas reading Autozero failed Cannot Autozero due to alarm Calibration expired Display shows empty battery symbol on switch on 30 Function disabled Zero drifted Sensor failure Zeroing in contaminated atmosphere Zeroing in contaminated atmosphere The calibration due date has passed Battery depleted Action Recharge or replace battery Reconfigure with PC software Restart instrument in clean air Do not use exit hazardous area immediately Return instrument for recalibration or sensor replacement Switch off and restart in clean air Switch off and restart in clean air Send for calibration Charge or change as appropriate gt CROWCON Gas Detection You Can Trust Gasman Appendix Limitations of sensors Appendix Limitations of sensors Sensor limitations The sensors used in Gasman have limitations common to all such gas sen sors and users should be aware of the points listed below Crowcon can advise on particular situations and suggest alternative sensors if the instru ment is likely to experience extreme conditions Gasman Flammable uses a catalytic gas sensor which measures the com bustibility of the gas For this reason readings displayed on the unit will be unreliable over concentrations of approximately 12096 LEL Oxygen is necessary for catalytic sensors to operate A catalytic bead saver is used to disconnect power to the catalytic bead sensor in the event of
31. thin the unit and will display an error warning to the user should they occur 8 CROWCON Gas Detection You Can Trust Gasman Operation Il Operation 2 1 Switch on sequence 1 Ensure the unit is in clean air 2 Switch on Press and hold the operator button for approximately 3 seconds until the red LEDs flash The instrument begins with testing all the LCD segments on the operator display screen the red and blue alarm LEDs sounder and internal vibrator alert The sounder may be silenced by pressing the button The unit enters a warm up mode and displays a sequence of screens see page 3 for more details At the end of warm up the Autozero menu will be displayed automatically without user confirmation Use this time to check there is which is the default setting in the USA or sufficient charge in the battery is can be disabled altogether pack See section VIII PC Interface and software The Autozero function can be set to run H I Battery check I id Calibration check During the warm up sequence if the next calibration date is due in less than 31 days CAL nn will be displayed where nn is the number of days to the next calibration If the date has expired the Gasman unit will display a warning message CAL The instrument can still function but it is strongly recommended the unit is sent for calibration as soon as possible Press the button to continue to Run mode Gasman can be set using the
32. ts are complete you should have Gasman unit with standard pocket clip A configuration report detailing the sensor installed alarm settings and a calibration certificate Calibration flow cap and tubing User manual Optional battery chargers and other accessories will be packed in a sep arate box Gasman units ordered with an Alligator clip will receive this clip in place of the standard pocket clip Battery check The Gasman Personal Gas Monitor has two battery options Li ion rechargeable or non rechargeable batteries Rechargeable units Gasman uses a Li ion battery pack and should arrive with sufficient charge so that the unit can be used straight out the box However if this is the first time you have used the Gasman unit you may need to charge the battery to attain the full operating time The actual operat ing time will depend on the types of sensor installed The flammable Gasman will operate for at least 12 hours on a fully charged battery gt CROWCON 1 Gas Detection You Can Trust Unpacking Gasman Warning rechargeable units Do not attempt to recharge the rechargeable battery with any other charger other than the Crowcon charger supplied with this unit Failure to comply could invalidate safety certification and may result in perma nent damage to the unit Non rechargeable units Gasman uses a CR2 battery which can be easily field replaced Ensure only the correct types of battery are fitt
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