Home Companies Henan Bosean Electronic Technology Co., Ltd.

Bosean Portable 4 Gas Detectors With Adjustable Low And High Alarm Level

Active Member

Contact Us

[China]

Address: Ground floor, Block 10. Yida Technology New Park No. 16 JinZhan Road National High and new Technology Industry Development zone,Zhengzhou,450007

Contact name:Leo Guo

Henan Bosean Electronic Technology Co., Ltd.

Bosean Portable 4 Gas Detectors With Adjustable Low And High Alarm Level

Country/Region	china
City & Province	zhengzhou henan

Product Details

4in1 multi gas detecor for LEL, CO, H2S, O2

BH-4s uses natural diffusion to detect gas. It uses sensors made by digital chips from international manufacturers. It has very high sensitivity and accuracy. The outer casing is made of industrial high-strength composite plastic, which is waterproof, dustproof and explosion-proof. The product has a communication interface, which can store and export data, and is widely used in petrochemical, metallurgical, mining, agricultural, experimental and other industries.

Main Features

1) Advanced MCU control with low power consumption
2) Adjustable low and high alarm level
3) Adjustable calibrating level
4) High concentration protection for combustible gas
5) Self test for the combustible gas sensor

6) Low battery indication
7) Replaceable sensor module

8) Self-adjustment function
9) Visual and audible alarm with vibration
10) STEL and TWA alarming for toxic gases
11) Advanced self-examination and self-renovation function
12) Password management to avoid wrong operation
13) Explosive proof housing

Product Parameters

Operating & Storage Environment	Temperature: -20°C~55°C (-4F~122F) Humidity: 5%-95% (Relative humidity non-condensing) Pressure: 95~110kPa
Sampling method	Diffusion type
Detecting Range	CO: 0~1000ppm H2S:0~100 PPM O2: 0~30%vol Combustible Explosive Gas (Ex / LEL / CH4): 0~100%LEL
Sensor	O2 /H2S / CO: plug-in electrochemical sensor
Alarm Type	low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm
Resolution	0.1%VOL (O2), 1ppm (CO), 0.1ppm (H2S), 1%LEL (EX)
Accuracy	3% F.S
Response time	10s
Repeatability	1%
Zero drift	1%
Data record	500 pcs of data storage
Display	Alphanumeric large LCD displays the real time gas concentration and alarm stage
Backlight	Automatically activated when working in poor lighting environment or the alarm sounding or the button is knobbed down.
Self-checking Function	Self-checking Battery power, display, sensor, hardware failure
Explosion-proof	EXiaIICT4
Protection grade	IP65
Power Supply	Rechargeable lithium battery

Product Application

The detector is suitable for explosion-proof, toxic gas leakage and rescue, underground pipelines, mines, metallurgy, power plants, chemicals, tunnels, etc., effectively avoiding the occurrence of poisoning accidents, ensuring the safety of workers and avoiding losses of production equipment.

Measurable Gas Meter

No.	Detected Gas	Detecting Scope	Resolution	Low/High Alarm Point	Response Time	Detection Accuracy
1	PH3	0-20ppm	0.1ppm	5ppm/10ppm	≤25s	±5%(F.S)
2	O2	0-30%vol	0.1%vol	19.5%vol/23.0%vol	≤15s	±5%(F.S)
3	EX	0-100%LEL	1%LEL	25%LEL/50%LEL	≤5s	±5%(F.S)
4	CO	0-1000ppm	1ppm	50ppm/100ppm	≤25s	±5%(F.S)
5	H2S	0-100ppm	1ppm	10ppm/20ppm	≤30s	±5%(F.S)
6	NO2	0-20ppm	0.1ppm	3ppm/10ppm	≤25s	±5%(F.S)
7	NO	0-250ppm	1ppm	25ppm/50ppm	≤60s	±5%(F.S)
8	SO2	0-20ppm	0.1ppm	5ppm/10ppm	≤30s	±5%(F.S)
9	CL2	0-20ppm	0.1ppm	1ppm/10ppm	≤30s	±5%(F.S)
10	NH3	0-100ppm	1ppm	25ppm/50ppm	≤50s	±5%(F.S)
11	H2	0-1000ppm	1ppm	50ppm/100ppm	≤60s	±5%(F.S)
12	HCN	0-10ppm	0.1ppm	1ppm/5ppm	≤200s	±5%(F.S)
13	HCL	0-10ppm	0.1ppm	1ppm/5ppm	≤60s	±5%(F.S)
14	CH4	0-100%LEL	1%LEL	25%LEL/50%LEL	≤5s	±5%(F.S)