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Summary of Contents for Crowcon Cardinal M07231
- Page 1 Cardinal Multichannel Personal Gas Monitor Instruction Manual Issue No. 1 Stock No. M07231...
- Page 2 Quick Operating Guide Switch on: Press button Normal condition: Intermittent green LED flash and blip Alarm condition: Fast flashing red LEDs and sounder Alarm reset: Press button Activate backlight: Press button Switch instrument off: Press and hold button - instrument will display 5 second countdown then turn off automatically.
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Page 3: Table Of Contents
Contents UNPACKING ....................5 INTRODUCTION ..................6 SPECIFICATION ..................7 OPERATION ....................9 4.1 S ................9 WITCH-ON EQUENCE 4.2 R ....................10 4.3 D ................. 11 ISPLAY YMBOL UIDE 4.4 D ..................12 ISPLAY PTIONS 4.5 D ..................12 ATALOGGING BATTERY PACK .................. - Page 4 12. SENSOR LIMITATIONS ................. 26 13. TROUBLESHOOTING GUIDE .............. 27 13.1 S .................. 27 TATUS ESSAGES: 13.2 S : ....................28 ERVICE 14. ACCESSORIES AND SPARE PARTS ............ 29 14.1 A ..................29 CCESSORY 14.2 S ................... 29 PARE ARTS...
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Page 5: Unpacking
Each box has a label detailing the contents of the box. Should the content not agree with the label, please contact Crowcon immediately and have ready the serial number of the instrument in question. The serial number can be found at the bottom of the label on the rear of the main instrument. -
Page 6: Introduction
2. Introduction The Crowcon Cardinal is a portable gas detector, which can monitor up to four gases simultaneously. It is designed to be carried or worn by individuals working in hazardous environments such as confined spaces, and will give a loud audible and bright visual alarm warning when preset concentrations of gas are detected. -
Page 7: Specification
3. Specification Weight 1.1lbs Dimensions 6.1” x 4” x 2” Typical measuring ranges 0-100% LEL combustible gas, 0-25% volume oxygen, 0-50ppm hydrogen sulfide, 0-500ppm carbon monoxide. Typical alarm levels (3 per 20%LEL and 40%LEL, 17%, 19% and channel plus TWA alarms 23% oxygen, 5ppm and 10ppm for toxic channels) hydrogen sulfide, 30ppm and 100ppm... - Page 8 Expected sensor life Catalytic 5 years, toxic gas 3 years, oxygen 2 years. Detachable battery pack 1.1Ah nickel metal hydride rechargeable: typical life 14.5 hours diffusion mode, 12 hours pumped. Aspirator/electric pump Manual bulb type with 6ft of hose, non-absorbent, hydrocarbon resistant. Internal electric pump option with auto on/off.
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Page 9: Operation
4. Operation 4.1 Switch-on Sequence NOTE: Before switching the detector on ensure you are in clean air. To switch on the instrument, press the button. The instrument tests all LCD segments, red alarm LEDs and sounder for 5 seconds, you can press the button to silence the sounder at this point. -
Page 10: Run Mode
4.5V indicates that the batteries require charging. For the first 4-5 recharge/discharge cycles, rechargeable batteries cannot hold a full charge. Therefore, the operation time is around 7 hours for the first few charges. Once in the Run mode, the green ‘confidence’ LED will flash and the speaker bleeps every few seconds to reassure users that the instrument is working and the environment is safe. -
Page 11: Display Symbol Guide
The display panel shown in Figure 1 is for an instrument with 4 sensors fitted. The sensor 1 reading is displayed first, indicated by the upper cursor, showing 18.7% LEL CH4 (methane) present. After a few seconds the cursor moves to the next position, and H2S (hydrogen sulfide) ppm (parts per million) is displayed. -
Page 12: Display Options
4.4 Display Options Additional displays can be accessed by a double click of the button. Successive double clicks step the display mode from the Normal display to Peak display, then TWA display then back to Normal display. Peak Display In Peak display the instrument shows the highest values seen for flammable and toxic gases, and the lowest value seen for oxygen since turn on. - Page 13 use of the PC interface and the Portables PC software. The data logging interval can be adjusted using the PC software. The capacity of data storage is variable due to the use of compression, but at a logging rate of 1 minute the data file can hold between 22 and 66 hours of data.
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Page 14: Battery Pack
5. Battery pack 5.1 Changing the battery pack Figure 2 - Changing the battery pack Note: Switch off before changing the battery pack. To remove the battery pack, press the clips at position 2 and pull the pack from the main body. To re-attach the battery pack, push the pack onto the body and push the clips upward at position 1 until a click is heard from each side. -
Page 15: Recharging
5.2 Recharging NOTE: Do not use the charger in a hazardous area! Switch the charger on and place the instrument in the charger with the charging contacts towards the rear. The charger red LED will light while the instrument is undergoing fast charge. -
Page 16: Alarm Types
6. Alarm types For each gas channel, there are three instantaneous alarms; level 1, 2 and 3. For toxic gas channels, there are also two time weighted average (TWA) alarms, which operate at short term (15 minute) and long term (8 hour) exposure limits. Alarm thresholds are set via the computer interface (see the handbook supplied with Portables PC for further details) and the following parameters may be set for instantaneous alarms:... -
Page 17: Fixing Accessories
7. Fixing Accessories Two fixing accessories are supplied as standard. 1. The transparent belt bracket may be fitted to the rear of the instrument for use with a normal trouser belt. 2. Two small brackets may be fitted to the back of the instrument allowing the use of a shoulder strap A chest harness is optionally available. -
Page 18: Using Pumped Versions Or Aspirators
The outlet must be connected to a hand aspirator bulb. A consistent style must be adopted when using hand aspirators - Crowcon recommend squeezing once per second to achieve a flow rate of approximately 0.5 - 1 liter/min. At least 10 pumps per sample are recommended. -
Page 19: Pumped Instruments
8.2 Pumped Instruments Figure 5 Pump flow adaptor The internal pump switches on automatically when the Pump Flow Adaptor is fitted over the grille. Ensure that the finger screws are firmly fixed. Air is drawn in through the nozzle on the adaptor and exhausted through the small nozzle below the sensor grille. -
Page 20: Calibration Method
8.3 Calibration Method Pass calibration gas through the flow adaptor from a regulated cylinder. Use a flow meter and needle valve set after the regulator to set a flow rate of 0.5 - 1 liter/min. Pumped units should be fed gas from an unpressurized gas bag, alternatively, a standard flow adaptor may be used in which case the pump will not run. -
Page 21: Routine Checking
9.3 Bump testing and calibration It is Crowcon’s recommendation to perform a gas response bump test and zero check on portable gas monitors before each use. A gas response check is performed by applying an appropriate concentration of test gas to the instrument and observing a response to the gas being applied on all sensor channels. - Page 22 Crowcon advises that regardless of make or model the calibration interval should never exceed six (6) months. (See section 8.3) If during the course of a routine calibration the instrument display show ‘SEr’...
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Page 23: Pc Interface And Software
10. PC Interface and Software Cardinal can be connected to a PC to interface to the Crowcon Portables PC software. This provides a user with access to the configuration file allowing changes to the set up, such as to alarm levels and mode of operation. -
Page 24: Sensor Replacement
11. Sensor Replacement Figure 6 Sensor removal and replacement Remove the flow adaptor if fitted. Remove the grille, which is secured by two Allen, headed screws (an Allen key is provided with each instrument, and is located in the base of the main instrument. Access is gained by removing the battery pack). - Page 25 Individual plug-in sensors may now be replaced as required. When reassembling, ensure that all gaskets and filters are in good condition and correctly fitted.
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Page 26: Sensor Limitations
Full details of cross sensitivities are available from the Crowcon sales department. Use of high power radio transmitters in close proximity to the instrument may exceed RFI immunity levels and cause erroneous indications. -
Page 27: Troubleshooting Guide
13. Troubleshooting guide Symptom Diagnosis Remedy / check Does not switch on Battery flat Recharge or replace battery No confidence bleep Function disabled Alter configuration using Portables PC Reading when no gas Zero drifted Zero instrument in present clean air by switching off and on Unstable / inaccurate Sensor failure... -
Page 28: Service
‘CAL’ displayed continuously. This shows the instrument has passed its due calibration date and needs re-calibrating. The message can be cleared by pressing the button, if the configuration allows this, and the instrument thus used, but it should be sent for re-calibration as soon as possible. The configuration can be set in Portables PC software to not allow clearance of this status message. -
Page 29: Accessories And Spare Parts
14. Accessories and Spare Parts Accessories and spares are available from the supplier of your Cardinal. 14.1 Accessory List DC0101 Rechargeable battery pack, complete with batteries DC0107 Aspirator complete (pumped) with flow adaptor & tubing DC0108 Aspirator complete (non-pumped) with flow adaptor, tubing, bulb &... - Page 30 C01323 Shoulder strap DM0430 Shoulder strap bracket M04032 Aspirator hose by the foot M04001 Aspirator bulb DC0106 Aspirator pouch DC0132 Aspirator flow adaptor, fittings, bulb and tubing DC0107 Pumped flow adaptor, fittings and tubing DM0410 Outer grill DM0411 Inner grill DC0111 Set of gaskets (sets of 5, excluding sensor filter assembly)
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