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HGD-3000i Hydrogen Gas & Smoke Detector with Intrusion Alarm

Hydrogen Gas Detection

The HGD-3000 Hydrogen Gas and Smoke Detector with optional Silent Intrusion Alarm is designed for unattended battery installations or remote shelters containing gassing lead acid batteries and charging systems. The HGD-3000 will turn on an exhaust fan when hydrogen gas levels reach 1% and will alarm at 2%. This alarm consists of a local 80db horn, a flashing red LED, and a dry contact switch closure for remote alarming. 

Smoke Detection

The photoelectric smoke sensor detects minute combustion products from smoldering wire insulation, battery cases, and other material. When smoke is detected, a distinctive alarm is emitted from the 80db horn and a separate dry contact switch is activated. At this time, the exhaust fan is inhibited in order to deny the fire increased oxygen from outside air. 

Temperature, Loss of Power, & Intrusion

During normal operation and in the absence of an alarm condition, an internal thermostat will turn on the exhaust fan at a preset temperature to reduce heat build-up in the room. Loss of power to the unit will also generate a dry contact alarm. Additionally, an optional infrared intrusion alarm will trigger a silent dry contact switch.

Benefits

  • Automatic Operation and Continuous 24/7 Monitoring
  • Highly sensitive and stable solid state hydrogen sensor
  • Sensitive photoelectric smoke detector module
  • Internal thermostat for automatic exhaust fan control at 40°C (104°F) with ±5° adjustable range
  • Save insurance costs – reduce insurance premiums when placed in battery charging rooms

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Specifications

DetectionHydrogen Gas, Smoke, Temperature, Intrusion
Alarms10A Relay for Exhaust Fan, 1A Relay for Loss of Power, 1A Relay
for Smoke Alarm, 1A Relay for Intrusion, 1A Relay for 2% H2
Concentration
Relay ConnectionsRJ45, Punch-Down Block
Mounting(4) 4.5 mm (3/16 in) screws
Operating EnvironmentTemperature: -10 – 40 °C (14 – 104 °F)
Power RequirementsStandard: 85 – 265 VAC, 50/60 Hz
Optional: 17 – 60 VDC
ComplianceIEEE Standard 450; National Protection Agency (NFPA) Article
64; NFPA 2: Hydrogen Technologies Code; Uniform Building Code
(UBC) Section 6400; National Electric Code (NEC) Section 480.9
(A); NEC 501.125 (B); NEC 501.105 (1)-3 – use in Class 1 Division
2 Group B
Dimensions178 x 120 x 55 mm (7 x 4.75 x 2.5 in)
 

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FAQs

What is the life expectancy of the hydrogen gas sensor?
The sensor is rated for 5 years; after this time the sensor may start to become overly sensitive to gases. We recommend replacement or refurbishment of the sensor at this time. Changing the sensor is simple, quick, & can be done while online.

What are the limitations of the smoke and infrared intrusion alarm?
The IR sensor has a range of 9 meters and covers 30 degrees. If mounted in a large area, the sensor should be aimed towards a door, or at the equipment being protected.

Do the additional features of the HGD-3000 hydrogen gas detector decrease the life expectancy of the sensors or boards?
No, the additional features do not negatively impact any functions of the HGD-3000 hydrogen gas detector.

Does the HGD-3000 require additional maintenance and calibration after installation?
No, as described above the sensor is rated for 5 years. During this period the HGD should be maintenance free.

Is the HGD-3000 rated explosion proof?
No, the unit is not rated explosion proof. The intrinsic design of the unit is to prevent and explosive atmosphere from forming by alarming and switching proper ventilation services on.

Does the unit alarm to an external building control system?
Yes, the unit has 10A dry contact relays for smoke, intrusion, 2% alarms

How does the detector connect to the optional breakout box?
The breakout box connects to the detector box via a standard style 8-connector, 8-contact telephone-type (RJ45) modular cable.

What standards does the HGD-3000 satisfy?
Beyond making your facility environment safer for employees, the HGD-3000 fulfills the following standards: IEEE Standard 450; National Protection Agency (NFPA) Article 64; NFPA 2: Hydrogen Technologies Code; Uniform Building Code (UBC) Section 6400; National Electric Code (NEC) Section 480.9 (A); NEC 501.125 (B); NEC 501.105 (1)-3 – use in Class 1 Division2 Group B

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