The Calibrator's Switch Test Procedure - Ametek Jofra CTC-155 A/C User Manual

Compact temperature calibrator
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2. Press one of the
• T
1 :
• T
:
2
• Dead band : To determine dead band, toggle between "Yes" (a two-way-
• Rate :
• Test runs:
Note...
the Rate should be set so that the thermostat sensor can follow the
temperature in the calibrator's well.
3. Press
The Switch test is now in progress.
While the Switch Test is in progress, 2 options are available:
• Stop :
• Results :
4.8.2

The calibrator's Switch Test procedure

1) Once the Switch Test is started, the calibrator starts working towards T
as possible. The calibrator's temperature changes (heating or cooling) and switch
status are shown in the display.
2) When T
1
bottom of the screen will change accordingly.
3) The calibrator now starts working towards T
4) In a normal situation, the thermostat changes state before T
achieved and the temperature is stable, no results will be displayed.
129591 03
(Arrow) keys to access the editable fields for new values:
First set temperature
Second set temperature
temperature measurement) and "No" (a one-way-temperature
measurement). A dead band result is only measured when
dead band is set to "Yes".
The permitted range is 0.01 - 10.0°C/min. / 0.02 -
Can be set from 1 to 3 making it possible to run the test more
than once.
(F4) to start the Switch Test.
Press
(F1) to stop the Switch Test. The process will end and
the results will be deleted from the results list.
Pressing the
beginning heating towards T
.... .... ....
Press
(F3) to display the current Switch Test result. The
....
results change as the test progresses. The results list is also
accessible from the Switch Test menu screen.
is achieved and the temperature is stable, the text and the graphic in the
(F4) key the process will start from the
.
1
at the specified Rate.
2
2019-01-30
18.0°F/min.
as quickly
1
is achieved. If T
is
2
2
22

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Jofra ctc-350 a/cJofra ctc-660 a/cJofra ctc-1205 a/c

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