HT-M5 fixed gas detector

1. What is a gas detector?

The so-called gas detector is an instrument that can detect the concentration of gases in the air. When the detected gas concentration is lower or higher than the preset alarm value, it will generate sound and light vibration alarm to prompt the user. It is a safety instrument for industry safety management and detection, maintenance and construction personnel.

2. Choosing the appropriate gas detector for different locations and testing needs is crucial for purchasing gas detectors. Below, we will provide a brief introduction on how to choose the right gas detector for your reference and selection.

(1) Confirm the type and range of gases detected on site, such as

detect gasmeasurement range

flammable gas0-100 %LEL

oxygen0-30%VOL

carbon monoxide0-1000ppm

hydrogen sulfide0-100ppm

(2) Confirm the detection method of the detector

portableAs the name suggests, it is easy to carry and can detect gas concentration anytime and anywhere. It has a small volume with digital display, sound and light alarm functions, and can be directly tested when turned on.

fixed typeFixed at a certain leakage point, it can be continuously monitored in real-time for 24 hours, and the corresponding system can be uploaded through signal output.

If you need a portable gas detector, please continue reading Article (3) and Article (4); If you need a fixed gas detector, please read the content of (5) directly.

(3) Confirm the quantity of gas detected by the portable gas detector

ClassificationdefinitionRecommended Model

1 type of gasAn instrument can only detect one type of gas and is generally used for on-site detection of relatively single gases.HT-M1

multiple gasesAlso known as a multi gas detector, one instrument can simultaneously detect multiple gasesHT-M4

(4) Determine the sampling method of the instrument

ClassificationdefinitionRecommended Model

diffusionThe instrument itself does not come with a pump and offers a wide range of gas options, making it suitable for open and well ventilated environmentsHT-M1/HT-M4

pump-suction typeThe instrument is equipped with an internal or external sampling pump, which can perform air extraction detection with fast response time, short detection time, and more accurate detection data. It is suitable for places with poor air circulation in closed environmentsHT-M1(B)/HT-M4(B)/HT-BH

(5) Fixed gas detectors are all single gas detectors. For fixed detectors, the configuration needs to be confirmed as follows:

definitionRecommended Model

without digital displayThe probe does not have a digital display functionHT-M5

with digital displayProbe with digital display functionHT-M5(s)

Equipped with sound and light alarm lightsThe alarm light is installed on the detector, and when the value is lower or higher than the set value, it can emit an audible and visual alarm function.

Equipped with alarm controllerCan connect multiple channel detection probes and centrally control multiple points. When the gas concentration reaches or exceeds the preset alarm value, the controller immediately emits an audible and visual alarm to remind early safety measures to be takenHT-B4

Product description

HT-M5 explosion-proof and explosion-proof fixed gas detection transmitter is a device that can detect oxygen, flammable gases, and toxic gases

Intelligent transmitters can be divided into display and non display types based on their display functions. The characteristics of this transmitter include

Performance and lower installation costs

Product Features

• The microprocessor technology

Explosion proof design, fast, reliable, and stable.

12-30V DC power supply

On site concentration display, sound and light alarm

The output signal can be customized by the user according to actual requirements.

1. Standard three wire 4-20mA analog signal output

2. Relay output (optional)

3. RS485 bus output (optional)

Fast response speed and high measurement accuracy

• Performance and lower installation costs

Low maintenance costs

Technical Specifications

Gas detection: Oxygen (O2) in the air

Range: 0-30% vol Range can be determined according to actual requirements

Accuracy:<± 5% (F.S)

Minimum reading: 0.1% Vol

Response time: ≤ 25 seconds

Sensor lifespan: 24 months

Sensor type: Electrochemical

Power supply: 12-30V DC power supply

Detection method: diffusion type

Working mode: Long term continuous work

Output signal: Standard three wire 4-20mA analog signal output; 2-wire output, relay output or RS485 output (optional)

Connection method: G1/2 male thread explosion-proof hose

Cable specification: Model RVVP3 × 1.0mm2

Signal transmission distance: ≥ 1000 meters

Structural material: die cast aluminum

Explosion proof mark: Exd II CT6

Protection level: IP65

Working temperature: -20~50 ℃ (depending on specific requirements)

Working humidity: ≤ 90% RH

Size/135 * 125 * 116mm without mounting bracket

167 * 145 * 126mm with bracket

Weight: less than or equal to 1KG without installation bracket

Supports are required for weights less than or equal to 1.4KG

Note: The above data depends on environmental conditions.

Our company produces various gas detection and monitoring instruments. If multiple or multiple gases need to be monitored simultaneously, HT-B4 series multi-point monitoring gas detection alarm controller can be equipped, which can centrally monitor 2-99 gases at the same time; It is recommended to choose a transmitter without concentration display on site for higher cost-effectiveness. Our company can provide you with gas monitoring design solutions and technical support. Welcome!