3M GD-6 Carbon Monoxide Alarm User Manual


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7. Press the Enter button and the display will read 10 alternating with the gas, mE, Pro or Hy (blinking), indicating the sensor
is looking for gas.
8. Start applying gas to the gas sensor.
Note: The sensor will look for the gas for 45 seconds. If no gas is applied or detected in that time, the display will return
to CAL.
9. When the sensor detects the gas, the display will flash back and forth between the gas concentration and SPn and the
calibration will progress. The display will show this for a maximum of 165 seconds.
10. When the calibration is successful, the display will flash back and forth between 10 and PAS.
11. Remove the gas. The display will return to “SPn”, then normal mode. The calibration is done.
12. If the calibration fails, the display will flash back and forth between the gas concentration and FAL (fail). If this occurs,
checkthepressuregaugeontheregulator.Ifthepressureislessthan25psitheowofgasmaynotbeadequateto
properly calibrate the unit. If there is proper pressure in the cylinder repeat steps 4 through 11. If the unit fails to calibrate
twice contact 3M Macurco Technical Assistance at 1-800-237-9049.
13. Disassemble the cylinder and regulator.
14. Re-assemble the 3M™ Macurco™ GD-6 Combustible Gas Detector (make sure the LED is aligned with the hole in the
front case).
15. See Calibration Flowchart.
3M FIXED GAS DETECTION PRODUCTS LIMITED WARRANTY
3M warrants the GD-6 gas detector will be free from defective materials and workmanship for a period of two (2) years from
date of manufacture (indicated on the inside cover of the GD-6), provided it is maintained and used in accordance with 3M
instructions and/or recommendations. If any component becomes defective during the warranty period, it will be replaced or
repaired free of charge, if the unit is returned in accordance with the instructions below. This warranty does not apply to units
thathavebeenalteredorhadrepairattempted,orthathavebeensubjectedtoabuse,accidentalorotherwise.Theabove
warrantyisinlieuofallotherexpresswarranties,obligationsorliabilities.THEIMPLIEDWARRANTIESOFMERCHANTABILITY
ANDFITNESSFORPARTICULARPURPOSEARELIMITEDTOAPERIODOFTWO(2)YEARSFROMTHEPURCHASEDATE.3Mshall
notbeliableforanyincidentalorconsequentialdamagesforbreachofthisoranyotherwarranty,expressorimplied,arising
out of or related to the use of said gas detector. Manufacturer or its agent’s liability shall be limited to replacement or repair
as set forth above. Buyer’s sole and exclusive remedies are return of the goods and repayment of the price, or repair and
replacement of non-conforming goods or parts.
FOR MORE INFORMATION
In United States, contact:
Website:www.3M.com/OccSafety
TechnicalAssistance:1-800-243-4630
For other 3M products:
1-800-3M-HELPSor
1-651-737-6501
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