Example: We would like to change DPoF to a range of -40 to 200 oF. Press Enter.
Enter -40. Press Enter again. Enter 200. Press Enter again. To Save the Changes,
press “Y” for Y)es. To accept the changes, press “A” for A)ccept.
5.4.4 PROGRAMMING THE ALARM RELAYS
The system will then step to the
Alarm Relay mode. The two relays
are Form A, (single-pole, single-
throw), normally open. You can
independently program the “ON”
point and the “OFF” point for each
relay. To enter the menu, press
“C” for C)hange.
We would like to change Alarm 2 to
Open > a reading of 10 oC
Close < a reading of 10 oC
NOTE: IN ACTUAL OPERATION YOU SHOULD PROGAM IN A SMALL OVERLAP,
SO THAT THE RELAY DOES NOT CHATTER WHEN THE MEASURED READING IS
EXACTLY AT THE SETPOINT. THIS IS CALLED “HYSTERESIS.”
Press “2” to set Alarm 2. You will note that Alarm 2 is set for Air Temperature, AToC.
Under OPEN, insert 10 and press “Enter.” Under CLOSED, insert 10 and press “Enter.”