Hengan Instruments
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HA8100 Gas Detector Alarm

Brand Name:
Model Number:
HA8100 Gas Detector Alarm
Detailed Description

Multiple telecommunication modes
Long lifespan sensor, stable & reliable
Outrange protecting, reverse polarity defending

HA8100 Series Gas Detector has been designed and manufactured on the basis of advanced international sensor techniques to continuously detect the combustible gas, oxygen and toxic gas in industrial hazardous area.


New generation HA8100 Series Gas Detector adopts the advanced MCU, reliable circuit design, total digitalization, and concentrated intelligentized operation mode. Therefore, it can record calibration information and setup the parameter.


HA8100 Series Gas Detector possesses standard 4~20mA signal interface, HABUS interface in accordance with MODBUS RTU protocol and RS485 bus interface in accordance with MODBUS RTU protocol. It can be connected with standard gas alarm controller, control room DCS system or addressable controller PLC.


Its alarm relay can directly drive relative alarm and interlocking equipment and its housing is IP66 explosion-proof cast aluminum or stainless steel.

Functions & Features

Displaying gas concentration value and environmental temperature on the scene:

Large-scale OLED screen, real-time displaying scene concentration value, gas type, unit, temperature, and etc; 4 separated indictors can directly show the situation of operation, fault, and alarm degree. Compared to LCD screen, OLED screen possesses such features as low temperature resistance, high brightness, and rapid response. In addition, OLED screen has super wide angle, so you can see it clear even you are on the side.


Grade 2 alarm: high and low alarm relay grade 2 alarm shall be setup individually, and respectively controls their own relays and links outer sound and light alarm or other equipments.


Multiple telecommunication mode: industrial standard 4~20mA signal interface, besides, RS485 bus interface and HABUS three-wire telecommunication interface, MODBUS protocol, connects with HA8100 controller or a third-party digital interface facility.


Non-contact Chinese menu, you can calibrate without the cover opening on site, and it’s safe and convenient.


Sensor with long lifespan, and stable & reliable characteristics


Sensor with strong anti- poisoning and anti-interference features


Outrange protecting, reverse polarity defending functions


General Specification

Detection Gas

Combustible gas, Oxygen, Toxic gas

Detection Principle 

Catalytic combustion, electrochemistry

Display Pattern

OLED screen, displaying gas type, unit, concentration value, environmental temperature, address code

Sample Mode

Diffusing sample






<15 seconds (combustible gas); <30 seconds (toxic gas) typical value

Operating Temperature

-40~+70°C (typical value, different gas type differs)

Environmental Humidity

0~95% RH (non-condensing)

Signal Output

4~20mA three-wire system with the largest loading resistance 500 Ω;

RS485 bus interface, potential free contact output, contact rating: 30VDC, 1A

HABUS three-wire telecommunication;



Operating Voltage

24VDC, 16~28VDC

Power Consumption


Electrical Contact


Alarm Function

Grade 2, alarm value shall be adjustable; high and low alarm relay output

Adjusting Method

One person, without opening the lid, magnetic adjustment





Protection Level


Explosion-proof Rate

Ex dIIC T6

Cable Type

RVVP3×1.5 mm2

We supply with all kinds of Fixed Gas Alarm Detector!We have confidence that you will satisfy with our products and service.Welcome your negotiated prices,we promise your good price will be our consideration.Above items are just a part, many more Cisco products are not listed out, please feel free contact us for more details. Thank you for your attention

Company information:
    Hengan Instruments was found in 2000 . We is an exporter of China (Mainland) Measuring & Analysing Instrument Agents products.    With independent export rights, our products have been exported to North America South America Eastern Europe Southeast Asia Africa Oceania Mid East Eastern Asia Western Europe, etc. Our company insists on strict quality standards.    We are seeking for cooperation with clients with sincerity.Please see our website at www.hengan-instruments.com for company profile!
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Hengan Instruments
Ms. Katy Wang
C2-1606, Yicheng Plaza, No. 11 Changchunqiao Road , Haidian District, Beijing 100089, P.R.China

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