Explosion-proof type Dew point analyzer

Model: SY-HG3300-DPEx


Typical application:

> Natural gas dew point detection in chemical industry

> Power system FS6 dew point detection

> Ammonia production and purity maintenance

> Humidity detection of electrolyte in battery industry

> Dew point detection when cooling hydrogen for generator

> Dew point detection of insulated gas used on transformers and high voltage switches

> Dew point detection of the welding gas

> Dew point detection of the oxygen used on ships and aviation

> It is integrated in gas analyzer system, then sale the complete system.




Adopt imported capacitance type thin film humidity sensors to detect dew point in the gas. Be widely used in power plants, metallurgy, scientific research, health and quarantine, grain storage, medical equipment, environmental testing, calibration, papermaking and textile, electronics industry and other fields

Technical data


Minimum measure range

-60 ~ +20℃

Maximum measure range

-100 ~ +20℃


≤ 1%FS  (Long run can be less than 0.5%FS)




≤ ±2 ℃


≤ ±0.1 ℃


Exd IICT6 Gb

Power supply

AC220V ± 10%, 50 / 60Hz

Power consumption

≤ 60W

Display screen

4.3"  640*480 pixel color TFT screen

Analog output

0/4 – 20mA  ( RL ≤ 500 Ohm )


RS485 ( optional )

Alarm output

2 normally open relays ( passive output),

Contact rate: 5A/30VDC;  10A/250VAC


 Ambient condition

Ambient temperature

5 ~ 40℃

Ambient humidity

≤ 90% RH

Airflow velocity


Placing request

horizontal placement

Mechanical vibration

No strong vibration

Electromagnetic interference

No strong Electromagnetic interference


Gas-sample condition

Gas-sample temperature

5 ~ 40℃

Gas-sample pressure

0.03 ~ 0.2 Mpa

Gas-sample flow rate

60 ~ 180 L/h

Gas-sample dust content

Before entering the instrument, the gas-sample must be filtered out of dust and impurity


Instrument size and weight

Instrument size

448 * 401 * 234 mm

Dimension for mounting

330 * 322 mm

Instrument weight

32 kg