HT-M4 Handheld Gas Detector

HT-M4 Carbon Monoxide 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 Introduction:

The HT-M4 carbon monoxide detector has a very clear large LCD display and sound and light alarm prompts. It is an intrinsic safety device that can continuously detect the concentration of the measured gas and is suitable for explosion-proof places. This detector is an intrinsic safety product that meets the general requirements of the national standard GB3836.1-2000 and the intrinsic safety type GB3836.4-2000.

The HT-M4 carbon monoxide detector adopts imported intelligent sensors with stable and excellent performance, powerful sound and light alarms, and easy to use. The sensor responds quickly and accurately to the detected gas to ensure timely alarm in case of harm. It is an extremely sensitive and alarming gas detector in today's industrial field. And it can adapt to various work environments. Durable explosion-proof and flame-retardant shell, lightweight, easy to carry, and able to withstand impact. Ensure that hazardous gases can be detected even in extremely unfavorable working environments and prompt operators to take preventive measures in a timely manner.

Features and functions:

1. Compact, lightweight, and equipped with a sturdy explosion-proof casing.

2. The screen LCD display can continuously and real-time display the concentration of the measured gas.

3. It has sound, light, and vibration alarm functions. The alarm can have multiple alarm functions such as low limit, high limit, STEL, and TWA, and the alarm value can be adjusted according to customer needs.

4. Large screen display of numbers, characters, instantaneous values, peak values, and average values.

5. Self check the display, battery, sensors, and sound and light alarm functions when turned on or needed

6. Safety reminder: Regular flashing lights and sound prompts

7. Powered by rechargeable lithium batteries

8. The maintenance cost is very low

Technical Specifications

Gas detection: Carbon monoxide (CO) in the air

Range: 0-9999ppm or 0-2000ppm

Basic error: ＜ ± 5% (F.S)

Minimum reading: 1ppm

Response time: ≤ 25 seconds

Sensor lifespan: 24 months

Battery: 3.6V lithium-ion rechargeable battery

Battery working time: Approximately 200 hours of continuous operation

Display: Large screen LCD display

Alarm: sound and light alarm

Direct reading: instantaneous value, peak value, battery voltage TWA、STEL

Explosion proof mark: Ex ibdIICT3

Protection level: IP45

Working temperature: -10 ∽ 45 ℃

Working humidity: 5-90% RH

Dimensions: 126mm (length) x 66mm (width) x 33mm (thickness)

Weight: 220g (with charger)

Haitel Company provides technical support and after-sales service for this instrument! Recruiting agents at all levels!