Diffusion four-in-one gas detection and alarm instrument
Diffusion four-in-one gas detection and alarm instrument

Product Overview:

Main features: ◆Standard configuration of 2000 mAh lithium battery, continuous working time of single gas is more than 16 hours; four-in-one gas working time is more than 8 hours; support mobile power supply and charging, compatible with universal USB port mobile phone charger; ◆ High-strength wear-resistant polycarbonate shell, strong waterproof and anti-corrosion, anti-electromagnetic radiation; ◆ Automatic layout according to the number of sensors, automatic storage, storage interval can be customized, and can store 300,000 sets of data with date and time marks; ◆ Screen display content can be customized Inverted flip (optional); ◆Support measurement data download.
Parameters: ◆Intelligent temperature and humidity and zero point compensation algorithm, full software automatic calibration function for target points from level 2 to level 4, to ensure the accuracy of measurement results; automatically detect the working status of each sensor and components when starting up;
Parameters: ◆ Support free switching between PPM and mg/m3, %VOL and mg/L concentration units, and free switching between Chinese and English operation interfaces;
Parameters: ◆ Multiple gas sensors can be turned on or off independently, effectively avoiding cross-interference between detected gases and prolonging the service life of the sensors;
Parameters: ◆ Diffusion measurement method, short response time, embedded 32-bit ultra-low power consumption microprocessor, small detection error and high resolution;
Parameters: ◆ 2.3-inch full-color display screen, large and clear background light can display measurement information under any lighting conditions, easy-to-understand UI color icon menu, friendly user interface with 4-key navigation, showing the humanization of the design ,globalization;
Product characteristics and parameters ▼

Technical parameters :

product name

Diffusion portable gas detection and alarm instrument

 Gas detection

Combustible gases (EX), carbon monoxide (CO), oxygen (O2), hydrogen sulfide (H2S) in the air; ammonia (NH3), sulfur dioxide (SO2), hydrogen (H2), ozone (O3), etc. are poisonous and flammable gas

 Detection principle

Depending on the specific gas to be detected, the principle of catalytic combustion and electrochemical principle are optional

Principle of catalytic combustion: combustible gas, methane, hydrogen and other combustible gases

Electrochemical principles: such as oxygen, carbon monoxide, hydrogen, ammonia, sulfur dioxide, hydrogen sulfide, ozone, etc.

 Measuring range

Depending on the specific detection gas, 0-1ppm, 5ppm, 10ppm, 20ppm, 50ppm, 100ppm, 200ppm, 500ppm, 1000ppm, 2000ppm, 5000ppm, 10000ppm, 50000ppm, 100%Lel, 0-2%Vol, 5%Vol, 10 %Vol, 30%Vol optional

resolution

0.01 ppm or 0.001ppm (0~1ppm); 0.01ppm (0~100ppm); 0.1ppm (0~1000ppm); 1ppm (above 1000ppm); 0.1%Vol (0~100%Vol) or 0.01%Vol (0~ 100%Vol); 0.1%Lel (0~100%Lel);

Support sensors

Any combination of catalytic combustion sensor and electrochemical sensor, flexible configuration 

Combination

Single, 2-in-1, 3-in-1, 4-in-1 optional (there must be a combustible gas sensor in 4-in-1)

Sensors with more than two in one configuration can be turned on or off independently to avoid gas interference and prolong the service life of the sensor

Sampling method

Diffusion detection method

Indication error

≤±3% FS (higher accuracy requirements based on sensor performance)

repeatability

≤±1%

zero drift

≤±1% (FS/year)

Response time

≤30 seconds (T90) (higher requirements based on sensor performance)

Recovery Time

≤30 seconds (higher requirements based on sensor performance)

size

Length 66mm × height 120mm × width 30mm

shell material

High-strength and wear-resistant polycarbonate shell

weight

About 0.12kg-0.18kg

Battery

Rechargeable lithium battery 2000mAh, support mobile power supply and charging

charger

USB high current 5V 2.1A fast charger, compatible with universal USB mobile phone charger

Alarm method

Sound alarm 95 dB@30cm, vibration alarm, red LED alarm light

Alarm point setting

A1 alarm value, A2 alarm value; TWA alarm value, STEL alarm value can be set separately

display screen

2.3 inch TFT large color screen

button

4 key navigation key

direct reading

Measured value, data logging status, maximum value, minimum value, average value

data record

Automatically store data, the storage interval can be customized, and can continuously store 300,000 sets of data with date and time

data download

Support USB measurement data download;

calibration

Level 2 to level 4 target point calibration function, calibration calibration value can be set, one-key zero adjustment

Explosion-proof grade

Ex ib ⅡC T4 Gb (intrinsically safe)

degree of protection

IP65

operating mode

Two operating modes, user mode and administrator mode, are available

Operating temperature

-20°C - 50°C

Working humidity

0-95% relative humidity (non-condensing)

Executive standard

GB 12358-2006, GB 3836.1-2010, GB 3836.4-2010

quality assurance

One year warranty period, free maintenance during the warranty period.