WIKA CTD9300 - Handbuch (Seite 29)

9037926 03/2005
GB
Temperature Dry Well Calibrators CTD 9300
3. Moduses and Functions
29 WIKA Operating Instructions CTD 9300 Rev. 1
3.1.2 Measuring Instrument Setup Menu
The measuring instrument setup menu is available only if the
calibrator is equipped with an integrated measuring instrument.
The menu is used for configuring the data logger and the
calibration processes of temperature switches, thermocouples,
resistance thermometers and 4-20 mA temperature transmitters.
The menu is hidden if the calibrator is not equipped with an
integrated measuring instrument.
The integrated measuring instrument makes it possible to measure
various sensor signals and to convert them to degrees Centigrade
according to standardised characteristic curves. It is also possible
to detect switch points of temperature switches. The data logging
function permits storing as many as six probe temperatures and the
nominal temperature per probe given by the calibrator. In total, the
calibration data of up to eight probes can be recorded.
The tolerance can be set within the limits of 0.01 K and 5.00 K,
the duration within the range of from 1 min to 100 min.
Cycles
Using the Cycles function, the calibrator can approach the ramps
continuously. If e.g. the temperature ramps 1, 2 and 3 are enabled
and the "UP" function has been selected, the ramps 1, 2 and 3 are
approached one after the other depending on the set cycles: with a
number of cycles of 3 this would be 1, 2, 3, 1, 2, 3, 1, 2 and 3.
If the "UP" and "DOWN" functions have been selected, the
calibrator will proceed as follows: 1, 2, 3, 2, 1, 2, 3, 2, 1, 2, 3, 2
and 1.
This function is especially useful for temperature change tests on
temperature sensors.
If the ramp program is enabled, set-values cannot be entered
via the keyboard. The keyboard will remain locked until the
temperature ramp function is disabled.