Dew Point Sensor

The NP330-G dew point sensor measures humidity in gases, covering a range from -80°C frost point to +20°C dew point, suitable for both trace and high humidity applications.
It is widely used in industrial measurement technology and is compatible with various gases and gas mixtures.
This sensor is a 4–20 mA transmitter for measuring absolute humidity in gases, with outputs in °C dew point or frost point, and optionally in ppmW or ppmV.

Product Features

1. Multi-point calibration
Over 60 calibration points for enhanced measurement accuracy
2. Temperature compensation
Minimizes the impact of temperature changes on readings
3. High measurement accuracy
Combines multi-point calibration and temperature compensation for excellent precision
4. Fast response time
Quickly reacts to dew point changes for efficient measurements
5. High pressure resistance
Patented design withstands pressure up to 300 bar
6. Long product lifecycle
Designed for industrial use with long-term spare parts availability

Downloads

NP330-G Specification Sheet

Specifications

Measuring range (dew/frost point): -80°C TP to +20°C TP
Operating temperature: -20°C to +60°C
Calibration and 4–20 mA output options: Dew point, ppmW, ppmV
Current output: 4–20 mA
Serial interface: RS232
Switching output: 24 V DC / max. 70 mA
System pressure: Up to 300 bar (4350 psi)
Power supply: 18–28 V DC / max. 70 mA
Standard installation depth: 50 mm with ½" thread (optional 120 mm or 430 mm depth)
Protection rating: IP65