Martel Electronics MC1210 - Manual (Page 28)

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1. Use the menu to select SW TEST on the upper display.
2. Connect the calibrator to the switch using the switch terminals. The polarity of the terminals
does not matter.
3. The top of the display will read “CLOSE”.
4. Raise the temperature slowly until the switch opens.
5. Once the switch is open, “OPEN” will be displayed, lower the temperature slowly until the
switch closes.
6. At the top of the display it will now read, “SW OPENED AT” and give you the temperature
that the switch opened at.
7. Press the “NEXT” option to view when the switch closed, and the dead band.
8. Press the “NEW TEST” option to get back to the main menu, clear the data and perform
another test.
Important NOTE: The previous example uses a normally closed switch. The basic
procedure is still the same for a normally open switch, the display will just read “OPEN”
instead of “CLOSE”.
P100-385
SW TEST CLOSE
RTD IN 4W
100.0 °C
------ °C
MENU LIGHT
P100-385
SW TEST OPEN
RTD IN 4W
MENU
100.0 °C
LIGHT
------ °C
P100-385
SW TEST OPENED AT
RTD IN 4W
NEW TEST
100.0 °C
NEXT
100.0 °C
DONE