Delta OHM HD2817T Series, Manual

Page: 19 / 64

19
Act above ( high threshold ) When the measurement increases, it represents the threshold ( set
value ) that shifts the relay from de-energised to energised when exceeded.
The contact to terminals 9 and 10 goes from closed to open. The contact to terminals
8 and 9 goes from open to closed.
The trigger threshold can be disabled, by setting the “
status = inactive ”.
RELE RL1
ACTIVE ABOVE
set value: 100.0°C
status: active
<UP> <DOWN> change
<ESC> exit/cancel
To change the threshold value, press ENTER to select the
set value line and use the


arrows to set the desired value.
Press ENTER to go to the status line. Use the
 
arrows to select active in order to
enable the trigger threshold, inactive to disable it.
Act below ( low threshold ) When the measurement decreases, it represents the threshold that
shifts the relay from de-energised to energised when exceeded.
The contact to terminals 9 and 10 goes from closed to open. The contact to terminals
8 and 9 goes from open to closed.
The trigger threshold can be disabled, by setting the “
status = inactive ”.
RELE RL1
ACTIVE BELOW
set value: 25.0°C
status: active
<UP> <DOWN> change
<ESC> exit/cancel
To change the trigger point value, press ENTER to select the
set value line and use the
 
arrows to set the desired value.
Press ENTER to go to the status line. Use the
 
arrows to select active in order to
enable the trigger threshold, inactive to disable it.
Hysteresis It represents the value of the relay RL1 hysteresis applied to both thresholds
defined above.
RELE RL1
HYSTERESIS
set value: 1.0°C
status: enable
<UP> <DOWN> change
<ESC> exit/cancel