BH-4s portable multi gas detector could detect combustible gas, O2 and other two types toxic gases continuously and simultaneously. It is widely used in the area where explosion-proof is required or toxic gas leaks, like underground channels or mining industry, so as to protect the workers' life and avoid damage on the relevant equipments.
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
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Operating & Storage Environment
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Temperature: -20°C~55°C (-4F~122F)
Humidity: 5%-95% (Relative humidity non-condensing) Pressure: 95~110kPa |
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Sampling method
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Diffusion type
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Detecting Range
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CO: 0~1000ppm
H2S:0~100 PPM O2: 0~30%vol Combustible Explosive Gas (Ex / LEL / CH4): 0~100%LEL |
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Sensor
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O2 /H2S / CO: plug-in electrochemical sensor
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Alarm Type
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low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm
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Resolution
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0.1%VOL (O2), 1ppm (CO), 0.1ppm (H2S), 1%LEL (EX)
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Accuracy
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3% F.S
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Response time
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10s
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Repeatability
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1%
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Zero drift
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1%
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Data record
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500 pcs of data storage
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Display
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Alphanumeric large LCD displays the real time gas concentration and alarm stage
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Backlight
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Automatically activated when working in poor lighting environment or the alarm sounding or the button is knobbed down.
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Self-checking Function
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Self-checking Battery power, display, sensor, hardware failure
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Explosion-proof
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EXib IIB T3 Gb
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Protection grade
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IP65
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Power Supply
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Rechargeable lithium battery
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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.
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No.
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Detected
Gas
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Detecting Scope
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Resolution
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Low/High
Alarm Point
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Response
Time
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Detection
Accuracy
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1
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PH3
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0-20ppm
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0.1ppm
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5ppm/10ppm
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≤25s
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±5%(F.S)
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2
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O2
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0-30%vol
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0.1%vol
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19.5%vol/23.0%vol
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≤15s
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±5%(F.S)
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3
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EX
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0-100%LEL
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1%LEL
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25%LEL/50%LEL
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≤5s
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±5%(F.S)
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4
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CO
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0-1000ppm
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1ppm
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50ppm/100ppm
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≤25s
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±5%(F.S)
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5
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H2S
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0-100ppm
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1ppm
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10ppm/20ppm
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≤30s
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±5%(F.S)
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6
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NO2
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0-20ppm
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0.1ppm
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3ppm/10ppm
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≤25s
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±5%(F.S)
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7
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NO
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0-250ppm
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1ppm
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25ppm/50ppm
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≤60s
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±5%(F.S)
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8
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SO2
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0-20ppm
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0.1ppm
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5ppm/10ppm
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≤30s
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±5%(F.S)
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9
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CL2
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0-20ppm
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0.1ppm
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1ppm/10ppm
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≤30s
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±5%(F.S)
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10
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NH3
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0-100ppm
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1ppm
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25ppm/50ppm
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≤50s
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±5%(F.S)
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11
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H2
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0-1000ppm
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1ppm
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50ppm/100ppm
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≤60s
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±5%(F.S)
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12
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HCN
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0-10ppm
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0.1ppm
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1ppm/5ppm
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≤200s
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±5%(F.S)
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13
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HCL
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0-10ppm
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0.1ppm
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1ppm/5ppm
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≤60s
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±5%(F.S)
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14
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CH4
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0-100%LEL
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1%LEL
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25%LEL/50%LEL
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≤5s
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±5%(F.S)
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Note: The above table is a general parameter. If you need other gas and range, please contact our online customer service.
Orignal Structure
Bosean has been committed to the development of the gas detection industry with strong economic strength and strong technical strength , specializing in the research, development, manufacturing and sales of gas detectors.We have continuously developed new products with international advanced technology.
Simple Operation
The body of the detector is small and easy to carry. The interface is simple and easy to operate. The shell is made of high strength ABS material, IP65 protection grade, dustproof, waterproof, explosion-proof, and can withstand the test of harsh environment.
Three Alarm
Two-level triple alarm, not easy to ignore, high and low alarm value can be set.
Standard Packaging
Metal aluminum box, machine, manual, certificate, lanyard, data cable, charger, calibration cover.
Portable single gas detector
Multi gas detector
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Fixed gas detector
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Scope of Business
Bosean was founded in 2013, specializing in the development and production of gas detectors, gas analyzers and rangefinder. At present, our research and development instruments have been spread all over the world.
R&D and Production
Bosean has always strictly implemented the ISO9001 quality management system. We adhere to the high standards of product quality, strict requirements, adopting the world-class production equipment, advanced management and production experience, developing the high-quality testing equipment.
Service team
Bosean has a strong sales team and a comprehensive service process to serve end customers around the world.Whenever you have any questions, you can contact us at any time.
Warehousing Logistics
Bosean has an independent warehousing base. It integrates instrument research and development, manufacturing, warehousing and delivery. It supports small batch spot delivery and mass customization.
Delivery
Providing a variety of express and different modes of transportation to ensure the safe and timely arrival of goods. Supporting multiple payment methods.
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Q1:Are you a trading company or manufacturer ?
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A1:We aremanufacturer.
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Q2:What about the payment method?
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A2:T/T, Paypal, Western Union, L/C is available.
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Q3:Does your company accept customization?
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A3:We do customizing service for customers.
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Q4:What about the Shipment?
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A4:We'll choose proper transportation mode based on the weight of goods, usually arrange shipment by air express such as DHL,FEDEX,TNT or UPS.
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Q5:What about after-sale service?
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A5:12 months warranty for all kinds of products.
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