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

Categories Multi Gas Detector
Brand Name: Bosean
Model Number: BH-4S multi gas detector
Certification: CE, ATEX, FCC,ROHS
Place of Origin: China
MOQ: Negotiable
Price: Negotiable
Payment Terms: T/T, paypal, alibaba
Supply Ability: 5000untis in one month
Delivery Time: 2-3days after your payment
Packaging Details: each set wireless vibrate detector alarm will be packed with the export standard carton package or aluminum box or as per customer require
Gas Type: CO, H2S, O2 , LEL
Working environment: -20℃~50℃ for toxic gases
Working time: ≥ 8h continuously (without alarming)
  • Product Details
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Bosean Portable 4 Gas Detectors With Adjustable Low And High Alarm Level

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)

Note: The above table is a general parameter. If you need other gas and range, please contact our online customer service.

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