Portable high accuracy CH4 biogas methane sensors

CH4 methane sensors

Characteristics

l LCD dot matrix display, support Chinese and English operation.

l The gas concentration unit PPM and mg/m3 can be shifted quickly.

l Ultra-high buzzer alarm sound, higher and lower alarm values are settable.

l Data storage function, historical data can be viewed on the device and also can be exported and printed by  connecting to computer (optional).

Technical Specification

l Target Gas:  Methane (CH4)

l Detection principle: Catalytic combustion

l Measure range:  0-100%LE

l Resolution: 1%LEL

l Precision:3%FS

l Sampling method:Diffusion (add external sampling pump if necessary)

l Unit: ppm,mg/m3

l Display:Monochrome dot matrix 128*128 LCD graphic display.

l Backlight:Time of backlight is settable, when alarm the backlight will be auto on.

l Direct reading:Gas molecular formula, concentration unit, measured value, time, battery, alarm state, data record status.

l Data recording:Storage capacity of over one hundred thousand sets, it can continue to store for 15 months with interval of 5 minutes. Interval time ranges from 10~3600 seconds are settable. (Optional function)

l Data transmission:High speed data transmission by USB, and is available for data downloading and printing after installing necessary software (optional function).

l Calibration: two target point calibration, both can be set up a calibration value. Support automatic zero point calibration of all channels by one click.

l  Password Protection: calibration is protected by password, and the password is resettable.

l  Restoration: support restoration of factory calibration, support restoration of factory parameter settings.

l  Language:Chinese/English

l  Alarm type: sound and light. Higher and lower alarm point values are settable. There are three alarm status for selection: ON/OFF/MUTE.

l  Battery:3.7V rechargeable lithium battery, with capacity of 1800mAh, and the working time is more than 50 hours (no combustible gas), and the charging time is less than 6 hours.

l  Explosion-proof grade:ExiaⅡCT4

l  Protection grade:IP66

l  Working temperature:-20℃~50℃

l  Working humidity:0-95%RH (Non-condensing, a filter dryer is needed in environment of humidity more than 90%RH)