Wall-mount dew-point transmitter DewTrans LC

optical4-20 mARS-232

Product description
The DewTrans LC is a high-accuracy, low-cost dew point mirror hygrometer. It provides fast and accurate measurement of humidity, dew point, ambient pressure and temperature. The transmitter can be configured for wall mounting or pipe mounting. The user can configure display readouts and analog outputs (e.g. RH, DP or temperature). The instrument delivers stable, accurate and repeatable measurements traceable to N.I.S.T.

Custom configuration

• Wall mounting
• Pipe mounting
• Sample chamber
• Electronics with remote sensor

Options

• Barometric pressure sensor
• Sample chamber
• Separate temperature sensor
• Higher accuracy ±0.1°C

Sensor
The DewTrans uses a wear-free, low-maintenance and reliable dew point mirror that can be used in most demanding environments. Only minimal maintenance such as mirror cleaning is required.

Installation
The DewTrans can be supplied as a compact unit or as a remote version. Remote electronics enable flexible mounting. For the compact version, electronics and sensor can be separated by a connector.

Technical overview
Parameters: Humidity % / Temperature °C / Dew point °C
Method: Single-stage dew point mirror
Measuring range: -20°C – +40°C TP / -10°C – +60°C (temperature) / 0% – 95% rH
Measurement uncertainty: ±0.2°C
Resolution: 0.05°C
Response time T90: 1°C/s
Flow rate: 1 – 5 l/min
Pressure: up to 10 bar
Calibration: Dew point mirror
Sample gas temperature: up to 100°C
Analog output/interfaces: 2 x 4–20 mA, RS232, alarms
Supply voltage: 24 V
Display: no display (configurable depending on version)
Protection rating: IP55
Connection: G 1 ¾"
Housing: 60 x 150 mm
Weight: 1.4 kg

Standard features

• Compact design
• Cost-effective
• Direct measurement method for dew point
• Display DP, RH, Temp.
• Selectable units °C, K, vppm …
• RS232 interface
• Long-life sensor
• Accuracy ±0.2 K (option ±0.1 K)
• Sensor and electronics separable

Applications

• Semiconductor industry
• Gas producers
• Metallurgical industry
• Chemical industry
• Pharmaceutical industry
• Heat treatment
• Glovebox environments

Technical characteristics / specifications

• Measured parameters: Humidity, Dew point, Temperature
• Measurement method: Single-stage dew point mirror
• Ranges: Dew point -20°C … +40°C TP; Temperature -10°C … +60°C; 0% … 95% rH
• Uncertainty: ±0.2°C (option ±0.1°C)
• Resolution: 0.05°C
• Response time (T90): 1°C/s
• Flow rate: 1–5 l/min
• Max. operating pressure: 10 bar
• Max. sample gas temperature: 100°C
• Analog outputs/interfaces: 2 x 4–20 mA, RS232, alarms
• Supply: 24 V
• Display: no display (dependent on version)
• Protection: IP55
• Connection: G 1 ¾"
• Housing (W x H): 60 x 150 mm
• Weight: 1.4 kg