Basic features and options – Vaisala DMT143 User Manual
Page 12

USER'S GUIDE ____________________________________________________________________
10 ___________________________________________________________________ M211435EN-E
Basic Features and Options
- Dewpoint measurement range -60 ... +60 °C (-76 ... +140 °F).
- Dewpoint measurement accuracy up to ±2 °C (±5.4 °F) T
d
in air or N
2
.
- Operating pressure range 0 ... 50 bar
a
(725 psia).
- Configurable for optimum dewpoint measurement accuracy:
- Dewpoint measurement in SF
6
or air.
- Pressure compensation (fixed pressure setting or live pressure
input through RS-485).
- Analog output: one output channel, selectable from:
- 0 ... 1 V
- 0 ... 5 V
- 1 ... 5 V
- 4 ... 20 mA
- Digital output: RS-485 (non-isolated).
- LED for dewpoint level alarm and transmitter diagnostics.
- DRYCAP
®
polymer sensor:
- Autocalibration ensures accuracy in changing measurement
conditions.
- Sensor warming keeps the sensor dry in high humidity.
- Sensor purge ensures long term stability.
- NIST traceable (certificate included).
- Field check suitability with DM70 hand-held dewpoint meter.
- Optional accessories:
- Stainless steel grid filter for vacuum applications.
- Sampling cells with various installation options.
- Loop-powered external display.
- Connection cable for DM70 hand-held dewpoint meter.
- Plastic shipping case for avoiding contamination during
shipping.