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8.0 Using the Upper and Lower Display for Calibration and
Testing
8.1
Performing a Temperature Switch Test
The ASC-400 calibrator can detect switch state changes and link the results in any
source/simulate mode (except pulse), performing an automatic or semi automatic switch
calibration, on a great variety of pressure, temperature and electrical level switches.
An example is given below for calibrating a temperature switch, measuring the
temperature with an external RTD sensor, using an external temperature source.
To perform a switch test, follow the principle of navigating through the functions
described in the guidelines in section 4.2 and proceed as follows
:
1. Select the upper display and select “Switch Test” from the Upper Mode list.
2. Connect the ASC-400 calibrator to the switch using the switch terminals. The polarity
of the terminals does not matter.
3. The upper display shows no read outs at neither “Closed”, “Opened” nor “Dead
band”
Figure 16
Temperature Switch Test
RTD Probe
Temperature
Switch