Portable dew-point meter DewTrans PDM-S2-S

IP54chilled mirrorwith LCD display

Description
Field-tested dew point mirror technology for industrial moisture measurement. The two-stage sensor is removable and can be exchanged easily without altering the electronics. Each instrument is delivered with a NIST-traceable calibration certificate.

DewTrans Highlights

• Stable, accurate and repeatable measurements traceable to NIST.
• Operation and configuration via RS232; optional integrated datalogger available.
• Sensor cooling capability up to 65°C using two-stage Peltier cooling.
• Automatic mirror matching function:
  • Automatic correction of mirror alignment.
  • Automatic optical matching with selectable interval.
  • Reduces measurement errors due to contamination.
• Two configurable alarms:
  • User-programmable thresholds.
  • Can be set as latching (holding) or non-latching alarm.
• Serial and analogue outputs for process integration.
• RS232 communication compatible with terminal programs, printers or PC; programming via RS232.
• Two user-scalable 4–20 mA outputs:
  • 2 independent measurement outputs.
  • Scalable to psychrometric variables.
  • Configurable via RS232.
• Pressure sensor input for psychrometric calculations.
• Rechargeable lithium-ion battery for autonomous field measurements.
• Optional sample pump available.

Parameters / Method / Range
Parameters: Moisture %, Temperature °C, Dewpoint °C
Method: Dew Point Mirror, 2-stage Peltier
Range: -60°C to +60°C TP; -20°C to +40°C; 0% to 95% rH
ATEX: No
SIL: No
Accuracy: ±0.2 °C
Resolution: 0.05 °C
Response time T90: 1 °C/sec
Flow rate: 1–5 l/min
Pressure rating: up to 10 bar
Gas temperature max: 100 °C
Outputs: 2×4–20 mA; RS232; Alarm; Datalogger
Supply Voltage: 24 V or battery
Display: 2-line LCD TP/T
Protection Class: IP54
Connection: 6 mm
Dimensions: 52 × 20 × 50 cm
Weight: 5 kg

Standard Features

• Dew point mirror measurement technology
• Measurement of dew point, absolute pressure, PPMv and other psychrometric variables
• Primary dew point measurement for water vapour in gas
• Wide measuring range (−45 to 100 °C)
• Automatic mirror matching
• Calibration traceable to NIST
• Analogue & RS232 outputs
• Switchable dew and frost point measurement

Application Areas

• Oven atmospheres
• Process dryers
• Clean rooms
• Annealing furnaces
• Gas manufacturers
• Climate chambers
• Metrology laboratories
• Humidity calibration labs

Technical Specifications

• Model: DewTrans PDM-S2-S
• Parameters: Moisture %, Temperature °C, Dewpoint °C
• Method: Dew Point Mirror, 2-stage Peltier
• Range: -60°C to +60°C TP; -20°C to +40°C; 0% to 95% rH
• Accuracy: ±0.2 °C
• Resolution: 0.05 °C
• Response time T90: 1 °C/sec
• Flow rate: 1–5 l/min
• Pressure rating: up to 10 bar
• Gas temperature max: 100 °C
• Outputs: 2×4–20 mA, RS232, Alarms, Datalogger
• Supply Voltage: 24 V or battery
• Display: 2-line LCD TP/T
• Protection Class: IP54
• Connection: 6 mm
• Dimensions: 52 × 20 × 50 cm
• Weight: 5 kg
• Calibration: Dew Point Mirror, NIST traceability