3M MACURCO GD-6 Owner's Manual

3Macurco™ Combustible Gas Detector, Controller and Transducer User Instructions IMPORTANT: Keep these User Instructions for reference.GD-6

16 17Operation Test1. Remove the single screw in the middle of the front cover of the 3M™ Macurco™ GD-6 Combustible Gas Detector.2. Remove the front

18 19Gas TestingTesting the Fan RelayNote: The gas concentration to activate the fan relay depends on the setting.1. Remove the Philips screw on the

20 215. The 4-20mA output should ramp up from 4mA in clean air to 20mA at 50% LEL. See 4-20mA diagram in these User Instructions.Note: If the 4-20mA

22 237. 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

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3M Occupational Health and Environmental Safety Division3M Center, Building 0235-02-W-70St. Paul, MN 55144-1000Printed in U.S.A.© 3M 2008-2011. All r

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1TABLE OF CONTENTSGENERAL SAFETY INFORMATION ...

2 3W WARNINGGENERAL SAFETY INFORMATIONIntended UseThe 3M™ Macurco™ GD-6 Combustible Gas Detector, Controller and Transducer is a low voltage device wi

4 5Ifyouhaveanydoubtsabouttheapplicabilityoftheequipmenttoyourjobsituation,consultanIndustrialHygienistorcall3MMacurco Technical

6 7Installation1. The 3M™ Macurco™ GD-6 Combustible Gas Detector mounts on a type 4S electrical box supplied by the contractor. 2. Connect the 3M™ M

8 9Typical Multiple 3M™ Macurco™ GD-6 Combustible Gas Detector InstallationINSTALLATION NOTES1. One sensor per 900 square feet (approximately).2. If

10 11GD-6Main Fan Power120VAC ALARM120VAC PowerExhaust Fanscoilcoilpower outputGD-6– +power output– +8 7 6 5 443322111 13 3 4 5 6 7 8 9224 V RETN.C.N.

12 13To change settings, remove the Philips screw on the front of the 3M™ Macurco™ GD-6 Combustible Gas Detector. Pull off the front cover of the unit

14 15Selecting Fan Minimum Run Time – “Frr”To select the Fan Minimum Runtime setting, in normal mode, press the Next button twice to get to “Con” or t