Macurco GD-6 Combustible (Low Voltage) Fixed Gas Detector Controller Transducer 70-0716-0802-3
Methane, Propane or Hydrogen Gas Detection
The GD-6 is a versatile, easy-to-use device that allows you to select between methane, propane or hydrogen
gas detection. Combustible gas detectors will respond to a wide range of hydrocarbons, including aerosol sprays,
cleaning solvents, paint thinner and other common volatile organic compounds.
This low voltage detector provides automatic feedback and fan or valve control that can help reduce combustible gas concentrations in parking garages, battery rooms, maintenance facilities, and other locations that require combustible gas detection.
Selectable options include:
• Target Gas: Methane (NG), Propane (LP) or Hydrogen (H2)
• Output: Fan relay, Alarm relay and 4-20mA current loop
• Controls: Digital display (0-50% LEL), buzzer, fan delay, fan minimum runtime
Installation
• Mounts on a standard 4” x 4” electrical box
• 5 A SPDT fan relay controls valves, louvers or exhaust fans
• 0.5 A N.O. or N.C alarm relay connects to warning devices or control panels
• 4-20mA current loop – compatible with the Macurco DVP-120 Control Panel
• Factory calibrated
Other Features
• Supervised system design: detector problem will cause the fan & alarm relay to activate
• Optional calibration kit allows the GD-6 to be field tested and calibrated
• ETL Listed to UL 61010-1, CAN/CSA C22.2 No 61010-1
Specifications
• Power: 3 W (max) from 12 to 24 VAC or 12 to 48 VDC
• Current @ 24 VDC: 75 mA in alarm, 50 mA fan relay on and 23 mA stand by
• Shipping Weight: 1 pound (0.45 kg)
• Size: 4 1/2 x 4 x 2 1/8 in. (11.4 X 10.2 X 5.4 cm)
• Color: Dark gray
• Connections: plugs/terminals
• Mounting box: (not included) 4×4 electric
• Fan relay: 5 A, 240 VAC, pilot duty, SPDT, latching or non-latching
• Fan relay actuation: selectable at OFF, 3, 4, 5, 6, 7, 8, 9, 10 (default), 11, 12, 13, 14, 15, 16, 17, 18, 19, 20% LEL
• Fan Delay Settings of 0, 1, 3 (default), 5 and 10 minutes
• Fan Minimum Runtime settings are OFF (default), 3, 5, 10 or 15 minutes
• Alarm relay: 0.5A 120 V, 60 VA
• Alarm relay actuation: selectable N.O. default or N.C.
• Alarm relay settings: OFF, 5, 10, 15, 20 (default), 25% LEL
• Current Loop, 4-20 mA for 0-50% LEL
• Operating Environment: 0°F to 125° F (-18°C to 52°C),10 to 90% RH non-condensing
Location
A GD-6 is usually located in areas where there is potential for gas leaks; where there are gas appliances, areas
through which gas pipes pass, where batteries are being stored or charged, etc. DO NOT mount the GD-6 in a
corner. DO NOT mount the GD-6 where the normal ambient temperature is below 0°F or exceeds 125°F (-18°C
to 52°C). If the target gas is lighter than air; natural gas (Methane) or Hydrogen (H2), mount the GD-6 high on a
wall or column about one foot down from the ceiling. If the target gas is heavier than air; propane (LP), mount the
GD-6 low on a wall or column one foot above the floor. Use the same spacing as for smoke detectors, 30 foot
centers, 900 square feet per detector.



