WIKA CTD9300 Benutzerhandbuch
Seite 43
9037926 03/2005
GB
Temperature Dry Well Calibrators CTD 9300
3. Moduses and Functions
43
WIKA Operating Instructions CTD 9300 Rev. 1
Press the CONTROL key to switch between the measuring and
calibration mode. As opposed to calibration mode, the control unit
is switched off in measuring mode.
"Measure" is displayed in the
top left-hand side of the status
bar. The fan cools the calibrator.
If a new nominal value is not
defined, the calibrator will reach
ambient temperature sooner or
later, depending on the
previous application
temperature.
Measuring mode is active after:
switching on the device
activating the temperature cut-out
a fault occurred
Apart from the current block temperature, the standard deviation
across the last n measured values (n = 1 ... 99) as well as the
gradient, the temperature change per minute, is displayed.
If an external reference thermometer is connected, the selection
"t- intern" and "t-extern" will be displayed underneath the nominal
value display. This permits the user to select between an internal
and external reference thermometer. The external reference
thermometer takes on all the functions of the internal thermometer.
Generally, it is used for calibrating very short thermometers only.
3.2
Measuring Mode
Fig. 28: Main menu,
measuring mode