CPD120 Portable Pneumatic Tester for Mining Use

CPD120Portable air pressure measuring device for mining use

Product Overview:

CPD120The portable pressure gauge for mining is a portable and inherently safe precision digital pressure measuring instrument specially designed for ventilation measurement and "pressure equalization prevention and fire extinguishing technology" in coal mines. It can be used in hazardous areas with explosive gas mixtures such as methane and coal dust. This barometer can measure the absolute air pressure on site (with a resolution of)0.01hPa）It can also measure the relative pressure difference at various points on site (with a resolution of)1Pa）. This pressure gauge has reliable vibration resistance, and the errors caused by normal impacts and vibrations during transportation can be ignored. This barometer can measure temperature and eliminate drift caused by temperature changes. The third characteristic of this barometer is its wide linear range, which can cover the elevation of all mines in the country. This air pressure measuring device uses liquid crystal display to measure data and measurement time, and can store them100Group test data, equipped with a pressure gauge and printer(Optional)Users can print out the measured data on the ground. The rechargeable battery inside the barometer can provide continuous operation for the barometer24Hour. The pressure gauge can display the power level of the power supply to ensure its normal operation and remind users to charge it in a timely manner to avoid damaging the power supply. This air pressure tester is lightweight and easy to carry, making it an ideal underground ventilation testing instrument.

Specification

lElevation range:-2500～+3500rice

lRange:80kPa～120kPa

lresolving power:1Pa

lAccuracy:±0.5hPa

lTemperature coefficient: less than2Pa/℃

lVibration resistance: The display changes caused by normal collisions and vibrations are less than2Pa.

lStability: After preheating for half an hour,8Drift within hours not exceeding ±10Pa.

lDisplay and function: can display absolute air pressure value(hPa)Atmospheric temperature (℃), relative pressure value(Pa)Relative elevation100Absolute pressure value measured by the group(hPa)Atmospheric temperature (℃), measurement date and time.

lPrinting function: capable of printing100Absolute pressure value measured by the group(hPa)Atmospheric temperature (℃), measurement date and time.

lPower supply: The power supply for the air pressure tester is provided byPL145667Powered by lithium manganese oxide battery pack, series connected2.5Ω/80WThe current limiting resistor is encapsulated with epoxy resin to form an intrinsic safety battery module.Ue=7.2V ,Uo=8.4V,Io=3.54ABattery powered continuous working time: ≥24h.