Measurement settings, Automatic frost detection, Chapter 11 – Vaisala DM500 User Manual
Page 61
Chapter 11 _____________________________________________________ Measurement Settings
VAISALA _______________________________________________________________________ 59
CHAPTER 11
MEASUREMENT SETTINGS
This chapter provides you with information about the measurement
settings.
Automatic Frost Detection
The automatic dew/frost sensing procedure senses if the condensation
on the sensor is water (dew) or ice (frost). If the sensing is turned off,
the T
d/f
value can be either dewpoint or frostpoint, depending on the
sensor state. Then the other water content quantities are disabled. If
the sensing is on (default), the T
d/f
value below temperature of
0 ºC/32 ºF is always frostpoint.
1.
Open
MENU
: press .
2.
Select ►
Measuring
, press
3.
Select ►
Measurement settings
, press .
4.
Select
Autom.frost detection
.
5.
To enable the sensing, press
ON
.
6.
To disable the sensing, press
OFF
.
7.
Press
EXIT
to return to the main view.
NOTE
Cleanliness of the sensor is essential for the proper operation of frost
detection.