Checkline PT-DPM - Manual (Page 2)

Introduction Introduction
2
The Dew Point Meter is a hand-held, electronic
instrument that measures, calculates and records
climatic parameters, quickly and accurately.
Measured parameters are:
T a - Air Temperature
RH - Relative Humidity
T s - Surface Temperature
T d - Dew Point Temperature
- Surface minus Dew Point
Power-up / Power-down Power-up / Power-down
The PosiTector DPM powers-up when any button is
pressed. To preserve battery life, the instrument
powers-down after approximately 3 minutes of no
button activity. To power-down immediately, hold
both (-)(+) buttons for 5 seconds. Settings are
retained during power-down.
Air temperature
and humidity
sensor
Surface
Temperature
Sensor
Temperature