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Related Manuals for Crowcon M07630
Summary of Contents for Crowcon M07630
- Page 1 Gasman Personal Gas Monitor User Manual M07630 November 2004 Issue 1...
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Page 2: Safety Information
© Copyright Crowcon Detection Instruments Ltd 2004. All rights are reserved. No part of the document may be pho- tocopied, reproduced, or translated to another language with- out the prior written consent of Crowcon Detection Instruments Ltd. Publication number: M07630 2. -
Page 3: Table Of Contents
Gasman Personal Gas Monitor Contents Unpacking ..........1 Quickstart guide ........3 Introduction ..........7 Operation..........9 Batteries ..........13 Alarm indications ........13 Fixing accessories ........16 Flow sampling ........17 Maintenance and calibration....21 PC interface and software......22 i-module replacement......23 Specification..........25 Accessories and spare parts ....26 Troubleshooting guide ......28 Appendix: Limitations of sensors....29... -
Page 4: Unpacking
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 serv- ice and reliability. Please read the instructions carefully before use. Keep the manual for future ref- erence. - Page 5 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 permanent damage to the unit.
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Page 6: Quickstart Guide
Gasman Quickstart guide Quickstart guide 1. Getting started Review your Gasman unit 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. - Page 7 Quickstart guide Gasman Gasman warm up sequence a) The unit will test the alarm LEDs, sounder, vibration alerts, and the operator display screen. The sounder may be silenced by pressing the button. b) The unit will continue through a warm up sequence as shown below, this will take approximately 20 seconds.
- Page 8 Gasman In the event of an alarm 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.
- Page 9 Additional information Gasman Storing conditions In order to optimise 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 III. For fixing accessories go to section V. For sampling section go to section VI.
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Page 10: Introduction
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 recognised the need for a reliable and robust personal moni- toring system, which is both small, light and easy to use. Gasman has a single operator button, and an intelligent user- f r i e n d l y display with automatic backlight. - Page 11 Introduction Gasman 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 flex- ibility to withstand the hardest of working conditions, water and dust tight to IP65 and IP67, with a non-slip grip.
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Page 12: Operation
Gasman Operation II. 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. -
Page 13: Run Mode
Run mode Gasman 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 opera- tor display screen. A typical display is shown below: The sensor channel will display the current value of the gas being monitored and units of measurement, the ‘OK’... - Page 14 Gasman Display options 2.4 Display options Gasman provides four additional selectable displays: Peak display 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.
- Page 15 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 (part No.C01940), using Crowcon Portables PC software. See section VIII. Data is recorded every minute (this rate can be adjusted using the PC software).
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Page 16: Batteries
Gasman Batteries III. 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 flam- mable units. 3.2 Gasman Charging Unit T h e re are 3 models of charging units available for Gasman;... - Page 17 Changing rechargeable batteries It is recommended that rechargeable batteries should be changed by an autho- rised Crowcon service centre. 3.2 Non-rechargeable batteries Gasman uses a Lithium Cell battery pack which will give up to two years of operation.
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Page 18: Alarm Indications
TWA alarm is for long term exposure: 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 level 2 alarms can be set for the gas sensor. -
Page 19: Fixing Accessories
A strong alligator clip allowing the user to wear Gasman on a belt, sleave, jack- et 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... -
Page 20: Flow Sampling
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. - Page 21 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.
- Page 22 Gas testing and calibration In the event Gasman displays ‘FAIL’, 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.
- Page 23 Note: Remove regulator from gas cylinder when not in use over a prolonged 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 calibration at six month- ly intervals.
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Page 24: Maintenance 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. -
Page 25: Pc Interface And Software
PC interface. The charger unit is fitted with a D-type 9 pin RS232 sock- et 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. -
Page 26: I-Module Replacement
Gasman i-module replacement 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 screws as shown the in the drawing, point ➀The accessory toolC03334 must be used for star head screws. - Page 27 i-module replacement Gasman 3. Place the Gasman unit face down on a surf a c e . 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.
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Page 28: Specification
Gasman Specification X. Specification Dimensions 90 x 48 x 24 mm (3 x 1.9 x 1 inches) Weight 130 g flammable 105 g oxygen 90 g toxic Housing, degree of protection Ingress protection IP65 (NEMA 4) & IP67 Operating temperature -20 to +55°C (-4 to +131 F) Humidity 0-99% RH, non-condensing for continuous... -
Page 29: Accessories And Spare Parts
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... - Page 30 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...
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Page 31: Troubleshooting Guide
Troubleshooting guide Gasman XII. Troubleshooting guide Symptom/ Cause Action error message Instrument won't switch on Flat battery. R e c h a rge or replace battery. No confidence beep Function disabled. R e c o n f i g u re with PC software . Gas reading when no gas Zero drifted. -
Page 32: Appendix: Limitations Of Sensors
Sensor limitations The sensors used in Gasman have limitations common to all such gas sensors, and users should be aware of the points listed below. Crowcon can advise on particular situations and suggest alternative sensors if the instrument is likely to experience extreme conditions. - Page 33 ISO 9001 Certificate Number: FM 12734 UK Office USA Office Crowcon Detection Instruments Ltd Crowcon Detection Instruments Ltd 2 Blacklands Way, 2001 Ford Circle, Suite F Abingdon Business Park Park 50 Technecenter Park Abingdon Milford, OH 45150 Oxfordshire OX14 1DY...