Manual
6
5
Instructions
5.1
How to select the function
1. Switch on the device by pressing the power key (2). If you hold the power key for more than 2 seconds,
this will switch off the instrument.
2. The device has 4 functions:
a) humidity and temperature
b) dew point
c) wet bulb
d) temperature via thermocouple input (K- or J-type)
If you hold the Hold key (3), you will see the following abbreviations in the display:
rH
humidity and temperature measurement
dP
dew point measurement
_Et
wet bulb temperature measurement
tP
K / J-type temperature measurement
If you release the Hold key (3) at the time the relevant abbreviation appears in the display, the desired
function will be set as the standard measurement.
3. Humidity and temperature measurement
a) Switch on the device by means of the power key (2).
b) Insert the plug (17) of the humidity sensor into the sensor input socket (7).
c) Select humidity and temperature measurement by means of the Hold key (3) if you have not done so
yet.
d) The display will now show you the humidity value in % RH (upper line) and the temperature in °C
(lower line).
Note:
You can switch between °C and °F as the temperature unit. For more information about this, see
below (settings).
4. Dew point measurement
a) Switch on the device by means of the power key (2).
b) Insert the plug (17) of the humidity sensor into the sensor input socket (7).
c) Select dew point measurement by means of the Hold key (3).
d) You can now read the dew point from the upper line of the display. The lower line of the display
shows “dP” for “dew point”.
5. Wet bulb temperature measurement
a) Switch on the device by means of the power key (2).
b) Insert the plug (17) of the humidity sensor into the sensor input socket (7).
c) Select wet bulb temperature measurement by means of the Hold key (3).
d) Now you can see the wet bulb temperature in the upper line of the display. The lower line of the
display will show “_Et”.
6. Temperature measurement by means of the thermocouple input
a) Disconnect the humidity / temperature sensor by removing the plug (17) from the socket (7).
b) Insert a K-type or J-type thermocouple into the K- / J-type input (8).
c) Switch on the device by means of the power key (2).
d) Select K- / J-type temperature measurement by means of the Hold key (3).
e) You can now see the temperature on the d
isplay. Moreover, either “K” or “J” will appear in the display.
Note:
K-type sensors are used as standard. If you wish to change from a K-type to a J-type
thermocouple, see below (settings).
5.2
Data Hold function
By pressing the Hold key (3), you can hold the measurement values in the display during the
measurement. The display will indicate “HOLD”. If you press the Hold key (3) again, you leave the Hold
function.
