Auto-check Combustible Gas Detector

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The HM-710 series high-stability auto-check combustible gas detector is designed for detecting the leakage of combustible gas to prevent the damage caused by gas leakage. It selects the semiconductor type gas sensing element which has high stability and small sensitivity drift. When the combustible gas concentration comes to the preset alarm threshold, the product would raise the alarm by emitting the alarm sound and its red LED flashing. It generally serves for the indoor places in which the combustible gas leakage may happen.

The auto-check combustible gas detector falls into the independent type, network type, the type driving electromagnetic valve, and the type driving fan. There are also two kinds of power supply modes for this series of products. One is the AC110V or AC220V. The other is DC9-24V.

Model and Function

Model	Operating Voltage	Alarm Indication	Basic Function
HM-710NS-AC	AC200-240V or AC110V	75dB Alarm Sound, Red LED Indicator Flashing	No Relay Output Signal
HM-710NVS-AC	AC200-240V or AC110V	Sound and Flash Alarm	No Relay Output, Outputting A 12V Pulse Voltage for Driving the Electromagnetic Valve to Close the Gas Source When Giving the Alarm
HM-710NC-AC	AC200-240V or AC110V	75dB Alarm Sound, LED Indicator Flashing	Relay Operating with a Normally Open or Normally Closed Signal for Connecting Alarm Host
HM-710NVC-AC	AC200-240V or AC110V	Sound and Flash Alarm	Outputting A Relay Output Signal for Connecting Alarm Controller, and Outputting A DC12V Pulse Voltage for Driving Electromagnetic Valve to Cut off the Gas Source
HM-710NC-DC	DC9-24V	Sound and Flash Alarm	Outputting A Relay Output Signal for Connecting Alarm Controller
HM-710NVC-DC	DC9-24V	Alarm Sound, LED Indicator Flashing	Outputting A Relay Signal and A DC12V Pulse Voltage for Controlling the Electromagnetic Valve to Cut off the Gas Source
HM-710LC-DC	DC9-24V		The product utilizes the low power consumption sensor and works with low power. It is often employed in the place insufficient with power supply. After the alarm, the product outputs a replay signal to connect the alarm controller.

Technical Specification (Part 1)

Model	HM-710NS-AC	HM-710NVS-AC	HM-710NC-AC	HM-710NVC-AC
Type	Independent Type	Independent Type with 12V Pulse Output to Drive Electromagnetic Valve	Network Type	Network Type with 12V Pulse Output to Drive Electromagnetic Valve
Operating Voltage	AC110V or 220V
Sensor	Semiconductor Sensor
Alarm Concentration	6% Lower Explosive Limit (± 3%) of Natural Gas
Alarm Sound Pressure	75dB/m
Alarm Output	Not Available	12V Pulse Output	Normally Closed or Normally Open Relay Output	Normally Closed or Normally Open Relay Output and 12V Pulse Output
Working Environment	Temperature Range: -10℃ ~ 55℃ Humidity Range: 10%~95% RH (No Condensation Phenomenon)
Dimension	110×70×40mm

Technical Specification (Part 2)

Model	HM-710NC-DC	HM-710NVC-DC	HM-710LC-DC
Type	Network Type	Network Type with 12V Pulse Output to Drive Electromagnetic Valve	Network Type, Low Power Consumption Design
Operating Voltage	DC9-24V
Sensor	Semiconductor Sensor
Alarm Concentration	6% Lower Explosive Limit (± 3%) of Natural Gas
Alarm Sound Pressure	75dB/m
Alarm Output	Normally Closed or Normally Open Relay Output	Normally Closed or Normally Open Relay Output and 12V Pulse Output	Normally Closed or Normally Open Relay Output
Working Environment	Temperature Range: -10℃ ~ 55℃ Humidity Range: 10%~95% RH (No Condensation Phenomenon)
Dimension	110×70×40mm

Related Names
Wall Mounted Gas Detector | Semiconductor Sensor | Natural Gas Leak Detector

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