EN-7625Ex explosion-proof dew point meterDetailed product description：

The EN-7625Ex explosion-proof dew point meter adopts imported capacitive micro moisture sensor and microprocessor technology, with functions such as large screen LCD display, upper and lower limit alarm, standard signal output, relay contact alarm output, self check, self correction, etc; It can directly measure atmospheric dew point and absolute moisture (ppm). The detection components of the instrument consist of an imported thermal polymer capacitive dew point sensor and a miniature platinum resistor, forming a complete dew point sensing and detection system with temperature compensation function. After calculation and correction by a microprocessor, the dew point sensor is precisely compensated and calibrated, resulting in an accuracy of dew point measurement better than ± 3.0 ℃ and a resolution of 0.1ppm. Suitable for continuous monitoring of trace moisture concentration in gases such as air, nitrogen, hydrogen, argon, etc. in Zone 1 and Zone 2 flammable and explosive hazardous areas with explosive and temperature groups T1 to T6 formed by combustible gases, vapors, and air. The design and manufacturing of the instrument fully comply with the provisions of the national standard GB3836.1-2000 GB3836.2-2000 GB3836.4-2000 on "Explosion proof Electrical Equipment for Explosive Environments, Explosion proof Electrical Equipment" d ", and Intrinsic Safety Electrical Equipment" i ", and have been recognized by the national level explosion-proof safety supervision and testing station for instruments and meters. The instrument series has a combination structure of "explosion-proof" and "intrinsic safety", with an explosion-proof mark of "Exd (ib) Ⅱ CT6" and an explosion-proof certificate number of "GYB05665".

The main features of EN-7625Ex explosion-proof dew point meter are:

A precision fully compensated dew point sensor is composed of imported capacitive micro moisture sensors and platinum resistors;
Equipped with low dew point measurement automatic calibration technology, it automatically corrects zero drift and has good long-term stability;
Explosion proof detector and non explosion proof controller are composed of two parts;
Can switch between displaying atmospheric dew point temperature and ppm value;
Full Chinese operation menu, human-machine dialogue, user-friendly interface;
Large screen dot matrix LCD display;
Real time clock displays date and time;
The upper and lower limit alarm points can be set arbitrarily within the full range;
Equipped with timed automatic storage function, historical data can be viewed at any time;
Equipped with a paperless recorder function, it automatically records the dew point change curve over time;
Has 0~10mA or 4~20mA standard signal output.

Main technical parameters:
Dew point range: -80 ℃~+20 ℃ (atmospheric dew point)
Linear error: better than ± 3.0 ℃
Repetitive error: ± 2.0 ℃
Resolution: 0.1 ℃
Response time: T90<60 seconds (typical value)
Output signal: 4-20mA DC (allows external load<800 Ω)
0-10mA DC (allows external load<1600 Ω)
Alarm relay contact capacity: 220VAC/1A
Power supply: 220VAC ± 10%, 50Hz ± 5% Hz
Sample gas pressure: 0.1~1MPa
Sample gas flow rate: 800 ± 100 milliliters per minute
Sample gas temperature: 0~40 ℃
Controller dimensions: 144 × 144 × 250mm (length × width × thickness)
Controller opening size: 138 × 138mm
Detector dimensions: 500 × 360 × 250mm
Explosion proof mark: Exdib Ⅱ CT6

The instrument should be able to operate normally under the following conditions:
Environmental temperature: 0 ℃~40 ℃;
Relative humidity: 20%~80% (excluding condensation);
Atmospheric pressure: local atmospheric pressure;
Sunlight radiation: Avoid direct exposure;
The amount of dust in the environment: negligible;
Air velocity: 0.5m/s
Harmful gases in the environment: no strong corrosive gases;
Vibration: Avoid strong vibrations;
Ventilation: unobstructed;
Working position: Horizontal installation (± 10.);
Power supply voltage: 220V ± 22VAC
Power frequency: 50Hz ± 1Hz
External electric, magnetic, and electromagnetic fields: Avoid strong electromagnetic interference.