WIKA CTD9300 Benutzerhandbuch
Seite 36
9037926 03/2005
Temperature Dry Well Calibrators CTD 9300
3. Moduses and Functions
GB
36
WIKA Operating Instructions CTD 9300 Rev. 1
3.1.2.5 mA-Probe
This menu is used for configuring the temperature transducer
calibration.
Setting the Current Range
If the probe is a 2-wire
transducer, the current range
must be set to 4-20 mA, for
3-wire transducers that are
generally supplied with
operating voltage externally, a
range of 0-20 mA can be set.
Setting the Temperature Range
To be able to convert the output current of the transducer properly
to a temperature signal, the measuring instrument must know the
limit temperatures for 4 mA (0 mA) and 20 mA. They must be
entered according to the specifications at the transducer.
Setting the Supply
Prior to a transducer calibration you must define whether the
calibrator is to supply the transducer with 24 V DC operating
voltage or not. Generally, this is the case. If it is supplied through
an external voltage source, the internal supply must be switched
off.
Fig. 21: mA-probe
setup menu