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BH-4 Portable 4 in 1 Gas detection alarm, hydrogen sulfide/carbon monoxide/oxygen/combustible gas

BH-4 can simultaneously detect hydrogen sulfide, carbon monoxide, oxygen, combustible gas 4 kinds of gas, natural diffusion detection of gas concentration, BH-4 is suitable for explosion-proof, toxic gas leakage rescue, underground pipelines, mines, metallurgy and other environments.
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Bosean BH-4 Gas detection alarm instrumentSPEC

Bosean BH-4 Gas detection alarm instrumentDetails

Bosean BH-4 Gas detection alarm instrumentPacking list

SKU
NB016140
Expansion gas
Supports more than 30 kinds of Sensors, flexible configuration, and can be customized according to customer needs. Default: EX, O2, H2S, CO four kinds of gas
EX-range
0 ~ 100% LEL
default precision
EX: 1% LEL, O2: 0.1% vol, H2S: 1ppm, CO: 1ppm
Detection Accuracy
≤ ± 2% FS (depending on Sensors)
Sampling method
diffusion
Concentration unit
ppm、mg/m3、%VOL、%LEL(可切)
Response time
T90<30s
Operating language
Switch between Chinese and English
Display
2.4-Inch LCD display with a resolution of 320 * 240
Linear dispersion
Displays the change of gas concentration in the recent period of time, which is convenient for comparative analysis and observation of data changes
Alarm method
Sound, light, vibration
Alarm method
Four ways of sound and light vibration display
Operating Temperature
-20~50℃
Power
3.7V rechargeable lithium battery, battery Capacity 1800mA
Sensors Life
24 months
Charging time
Charging time is less than 7 hours, continuous work for more than 8 hours
data storage
500 sets of data storage
data transmission
USB interface data transmission, equipped with PC software, can query and export alarm record data, which is convenient for comparative analysis and observation of data changes
password protection
With password protection function and password modification function (default password 0000)
Explosion-proof sign
Exib's B T3 Gb
Environment humidity
0~95% RH non-condensing
Shell material
ABS+PC
Dimensions
145*69*28mm
Show误差
≤5%FS
Alarm method
LCD display real-time data and system status, Light Emitting Diode, sound, vibration indication alarm, fault and underVoltage
Weight
400g
resolution
EX: 1% LEL, H2S: 1ppm, CO: 1ppm, O2: 0.1% vol
Low alarm point
EX: 20% LEL, H2S: 10ppm, CO: 50ppm, O2: 19.5% vol
High alarm point
EX: 50% LEL, H2S: 35ppm, CO: 150ppm, O2: 23.5% vol
CO-range
0~1000ppm
H2S-range
0~100ppm
O2-range
0 ~ 30% VoL
BH-4
Gas detection alarm instrument
BH-4 Portable 4 in 1 Gas detection alarm, hydrogen sulfide/carbon monoxide/oxygen/combustible gas Picture

Introduction

BH-4S four-in-one Gas Detector detects gas concentration in a natural diffusion way, using a new 32-bit microprocessor and imported industrial-grade sensor, with fast response time, high measurement accuracy, good stability and repeatability. 2.4-inch LCD screen, resolution 320*240 high-definition interface display, with upload computer analysis, Chinese and English switching and other auxiliary functions, the whole machine in line with the national metrology and production license standards.

It is an intrinsically safe instrument that can continuously detect the concentration of toxic, harmful, flammable and explosive gases in the operating environment. It is suitable for explosion-proof, toxic gas leakage rescue, underground pipelines, mines, metallurgy, power plants, chemical industry, tunnels, tunnels and other places. Effectively prevent the occurrence of poisoning accidents, ensure that the life safety of staff is not violated, and production equipment is not lost.

Features


Gas parameter table

The gas to be measuredMeasuring rangeSelectable measuring rangesresolutionAlarm point
Combustible gas EX0-100%lel0-100%vol (infrared)1%lel/1%volLow: 20 High: 50
Oxygen O20-30%vol0-30%vol0.1%volLow: 19.5% High: 23.5%vol
Hydrogen sulfide H2S0-100ppm0-50/200/1000ppm1ppmLow: 10 High: 20 ppm
Carbon monoxide CO0-1000ppm0-500/2000/5000ppm1ppmLow: 50 High: 150 ppm
Carbon dioxide CO20-5000ppm0-1%/5%/10%vol (infrared)1ppm/0.1%volLow: 1000 High: 2000 ppm
Nitric oxide NO0-250ppm0-500/1000ppm1ppmLow: 50 High: 150 ppm
NO2 nitrogen dioxide0-20ppm0-50/1000ppm0.1ppmLow: 5 High: 10 ppm
Sulfur dioxide SO20-20ppm0-50/1000ppm0.1/1ppmLow: 5 High: 10 ppm
Chlorine CL20-20ppm0-100/1000ppm0.1ppmLow: 5 High: 10 ppm
Hydrogen H20-1000ppm0-500/2000/5000ppm1ppmLow: 50 High: 150 ppm
Ammonia NH30-100ppm0-50/500/1000ppm0.1/1ppmLow: 20 High: 50 ppm
Phosphine PH30-20ppm0-20/1000ppm0.1ppmLow: 5 High: 10 ppm
HCL hydrogen chloride0-20ppm0-20/500/1000ppm0.1ppmLow: 5 High: 10 ppm
Chlorine dioxide CLO20-50ppm0-10/100ppm 0.1ppmLow: 5 High: 10 ppm
Hydrogen cyanide HCN0-50ppm0-100ppm0.1/0.01ppmLow: 10 High: 20 ppm
Ethylene oxide C2H4O0-100ppm0-100ppm1/0.1ppmLow: 20 High: 50 ppm
ozone0-10ppm0-20/100ppm0.1ppmLow: 2 High: 5 ppm
Formaldehyde CH2O0-20ppm0-50/100ppm1/0.1ppmLow: 5 High: 10 ppm
Hydrogen fluoride HF0-100ppm0-1/10/50/100ppm0.01/0.1ppmLow: 2 High: 5 ppm
Xylene/toluene0-20ppm0-1/10/50/100ppm0.01/0.1ppmLow: 5 High: 10 ppm


FAQ
QHelp me find a Gas detection alarm instrument that meets the GB3836.1 standard
A This BH-4 Gas detection alarm instrument can be used!
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