17
TRS 5-52 - Installation & Operating Manual -
819175-05
Testing the MIN alarm and MAX alarm
Action
Indication
Function
In operating mode:
Temperature between MIN
and MAX
Select Test parameter. Press
and hold the pushbutton.
MAX LED flashes for 3 seconds
MAX LED lights up red for 3
seconds
MAX output contact 21/23 closed, 22/23 open.
The MIN and MAX LED do not
light up for 1 second
MAX output contact 21/23 open, 22/23 closed.
MIN output contact 16/18 open, 17/18 closed.
MIN LED flashes for 3 seconds
MIN LED lights up red for 3
seconds
MIN output contact 16/18 closed,
17/18 open.
Test complete, release
pushbutton. Equipment
switches to operating mode.
Note: If you continue holding the pushbutton, the test sequence will start again.
You can interrupt the test sequence at any time by releasing the pushbutton.
If the test was failed, replace the temperature switch.
Checking the function of the MIN/MAX output contacts
Operating, alarm and testing
continued
Indications
Operation
Action
Indication
Function
Temperature between MIN
and MAX.
MIN and MAX LEDs are not lit
MIN output contacts 16/18 open, 17/18 closed.
MAX output contacts 21/23 open, 22/23 closed.
MIN alarm
Temperature below MIN
switchpoint.
MIN LED lights up red
MIN output contacts 16/18 closed, 17/18 open.
MAX alarm
Temperature above MAX
switchpoint.
MAX LED lights up red
Delay time elapsed, MAX output contacts 21/23
closed, 22/23 open.
Note
The actual value is shown on the 7-segment display.
