GD-3000 Features
- Selectable (on/off) digital display, buzzer, fan delay (minutes), fan minimum run time
- Selectable fan and alarm relay activation
- Factory calibrated. Can also be field calibrated using 10% LEL Methane, 10% LEL Propane or 10% LEL Hydrogen gas, regulator and calibration hood
- One screw allows access for easy calibration
- Mounts on a standard 4" x 4" electrical box, no cover needed
- 5 A SPDT fan relay controls starters of exhaust fans
- 0.5 A N.O. or N.C. alarm relay connects to warning devices or control panels
- Supervised system design: internal detector problem will cause the fan & alarm relay to activate
- ETL Listed to UL 61010-1
- GD-3000 can be used with 12VDC or 24VDC N.O. (fire) panels
- Alarm panel provides battery backed up power to GD-3000
- GD-3000 dry contact fan relay can use panel power or fan power. Check ratings on panel and fan
- Match fan relay contacts to fan size, and coil voltage to power source
- Alarm control panels are available with many features and can control other devices such as smoke detectors, fire detectors and burglar alarms
GD-3000 Technical Specifications
- Accuracy: ±5% of the LEL reading up to 50% LEL
- Power: 3 W (max) from 12 to 24 VAC or 12 to 48 VDC
- Current @ 24VDC: 75 mA in alarm (two relays), 50 mA (fan relay only) and 23 mA stand by
- Fan Relay: 5 A, 240 VAC, pilot duty, SPDT
- Fan Relay Actuation: Selectable at 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 (default), 11, 12, 13, 14, 15, 16,17, 18, 19, 20% LEL
- Fan Delay Settings: 0, 1, 3 (default), 5 and 10 minutes
- Fan Minimum Run Time: Settings are OFF (default), 3, 5, 10, 15 minute
- Alarm Relay: 0.5A 200 V, 10 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% R
- Weight:1 lb
- Size: 4.5 x 4 x 2.125 in. (11.4 X 11.4 X 5.3 cm)
- Connections: Plugs/terminals
- Mounting Box:(Not included) 4×4 electric
