OC-905 Portable gas detector with inner pump

รหัสสินค้า : 0002

OC-905 Portable gas detector designed with the inner pump and the famous brand sensors, with stable performance and high accuracy. Used to detect the single gas concentration for the Combustible gas, Toxic gas, Carbon Dioxide, Oxygen, TVOC, etc. It can directly display the gas concentration data on the screen, the data also could be exported to the computer by USB cable.

For the portable gas detector, the common applications is gas safety inspection and alarm for industrial scene, such as petroleum refinery, chemical plants, LPG stations, boiler rooms, gas stations, paint spray booths, metallurgy, mining, fire, environmental protection, etc., where need to inspect the Combustible gas or the Toxic gas concentration.

Features:

Used the original imported sensor, semiconductor technology of ultra low power 32 bit microprocessor, 24 bit ADC acquisition chip, so with the high accuracy.

2.5 inch dot matrix display interface.

All English operation menu and easy operation.

Unit data available for LEL, VOL, ppb, ppm and mg/m3.

The circuit installed the four layers of wire, so well anti-interference.

Explosion proof grade is Ex ib IIC T4 Gb.

Function:

Inspect the gas concentration and alarm when it reaches preset alarm level.

High accuracy, good stability and good repeatability, long working life.

One-key operation to restore to factory default setting.

Adjustable two-stage audible-visual alarm threshold value.

Powered by rechargeable lithium battery with big capacity.

The built-in pump could be controlled.

Technical Parameter:

Gas type Combustible gas, Toxic gas, CO2, O2, TVOC, etc.

Measuring range According to different gas type

Working principle Electrochemical sensor for Toxic gas and O2;

Catalytic combustion sensor for Combustible gas;

Infrared sensor for CH4 and CO2;

PID sensor for the TVOC.

Resolution According to different gas type

Precision ±≤3%F.S or Customized

Repeatability ≤±1%

Zero drift ≤±1%(F.S/year)

Sampling mode Pump-suction sampling (Flow rate of 300ml/minute)

Data storage Can record 300000 group of measuring data

Response time T90≤20s

Recovery time ≤20s

Pre-heating time ≤60s

Display LCD dot matrix display of the Gas type, gas concentration unit, gas concentration data, time, battery status, data storage status;

Concentration unit %LEL, %Vol, ppb, ppm，mg/m3

Working environment Working temperature: -20℃～60℃

Working humidity: 10%-95%RH(non-condensing)

Working pressure: 86Kpa ～ 106Kpa

Explosion-Proof grade Ex ib IIC T4 Gb

Protection grade IP66

Alarm mode Audible, visual

Shell material Metal

Power supply 3.7VDC, 2800mAh,Rechargeable lithium battery

DC5V USB charger

Charge time ≤6 hours

Working time ≥24 hours

Dimensions 135*65*35mm