JH-BD-4 Portable Gas Detection Alarm Device

JH-BD-4 Portable Gas Detection Alarm Device

JH-BD-4 Portable Gas Detection Alarm Device

The JH-BD-4 portable gas detector is designed to detect flammable, explosive, toxic, and harmful gases. When the measured gas concentration reaches the alarm point set by the instrument, it triggers sound, light, and vibration alarms to warn on-site personnel to take appropriate action based on the detection situation.

Specification Sheet

Technical Parameter


Item

Specification

Detected Gas

Combustible gas, toxic gas, and harmful gas

Detection Range

0–100% LEL, 0–30.0% VOL, 0–1000 ppm, etc.
[Reference/Typical values]

Detection Principle

Electrochemical, catalytic combustion, infrared, photoionization, semiconductor

Indication Error

≤ ±5% FS
[FS: Full scale]

Response Time

Varies by gas type

Operating Temperature

Combustible gas: -40°C to 70°C; Toxic gas: -20°C to 50°C

Operating Humidity

≤ 95% RH (Non-condensing)

Power Supply

3.7 V, 3000 mAh rechargeable polymer battery

Display Mode

2.31-inch high-definition color screen

Explosion-Proof Type

Intrinsic safety type

Explosion-Proof Mark

Ex ib IIC T3 Gb

Protection Grade

IP65

Sampling Mode

Standard: Diffusion type
Optional: Suction type; flow 250 mL/min or 500 mL/min

Alarm Mode

Sound, light, and vibration alarm

Communication Interface

USB (charging & communication)

Data Storage

Capacity for 5000 alarm records

Weight

250 g

 

Features


Can simultaneously detect 4 types of gases;

Rich human-machine interface;

2.31-inch high-definition color screen, displaying real-time concentration, alarms, time, storage, and other information. Standard USB charging interface with charging protection; supports USB hot plugging, and the instrument’s charging status can operate normally;

Adopting a 3000 mAh high-capacity rechargeable polymer battery, it can operate continuously for an extended period;

Multiple alarm methods, with multi-dimensional three-dimensional indication of alarm status during alarms;

The alarm methods include: sound and light alarm, vibration alarm, and visual alarm on the display screen;

Alarm types include: concentration alarm, undervoltage alarm, and fault alarm;

Multiple alarm mode settings: low alarm, high alarm, and interval alarm;

Error recognition function: automatic recognition and prevention of concentration calibration errors, helping to avoid adverse effects caused by human factors;

Meets the requirements of intrinsic safety circuit design, with anti-static and anti-electromagnetic interference capabilities.


Application


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