Alarm Output:
For meter models with alarm output installed it is possible to set alarms. On the IPM500 (D500) series meters there are two alarms that can be programmed to activate once the programmed set-point is surpassed. The alarms are active when the LEDs on the top of the display are illuminated. With this alarm option the user must enter the setpoint at which the alarm will be activated, the type of alarm it will be, as well as the characteristics of the alarm. The alarms can also be hooked up as an output in order to activate external devices. The setup for this function is below.

Setup:
The alarm output setup is shown to the right. An example of an alarm indicator is a noise alarm that will sound once the alarm is activated and the normally open relay is closed. If you are using alarm 1 it is only necessary to hook up alarm 1. There is no internal power source for the alarm relay so it is necessary to connect a power source in the connection. First, decide if you would like to use a normally open (N/O) switch or a normally closed (N/C) switch. Once you have made your decision use the corresponding pin. Connect one wire to the N/O or the N/C switch and the alarm indicator (sound alarm). Connect the other wire from your alarm indicator to the external power source. Finally connect a wire from the alarm ground (Common) to the power source. You are now ready to configure the alarm.

00000 – Relay status when alarm is active

0 – Relay 1 on, Relay 2 on
1 – Relay 1 off, Relay 2 on
2 – Relay 1 on, Relay 2 off
3 – Relay 1 off, Relay 2 off

00000 – Alarm latching or non-latching status (weather or not the alarm will turn off when the displayed value returns to normal ranges)

0 – AL1, AL2 non-latch
1 – AL1 latch, AL2 non-latch
2 – AL1 non-latch, AL2 latch
3 – AL1, AL2 latch

00000 – alarm status (this determines if the alarm will be activated once the displayed value is either higher (active high) or lower (active low) then the set setpoint)

0 – AL1 active high
AL1 active high
1 – AL1 – active low
AL2 – active high
2 – AL1 – disabled
AL2 active high
3 – AL1 active high
AL2 active low
4 – AL1 active low
AL2 active low
5 – AL1 disabled
AL2 active low
6 – AL1 Active high
AL2 disabled
7 – AL1 active low
AL2 disabled
8 – AL1 disabled
AL2 disabled

00000 – Selects the Hysteresis mode or Band Deviation mode of alarms

0 – AL1 BAND Deviation
AL2 Band Deviation
1 – AL1 Hysteresis
AL2 Band Deviation
2 – AL1 Band Deviation
AL2 Hysteresis
3 – AL1 Hysteresis
AL2 - Hysteresis
4 – No deviation or
Hysteresis in menu

00000 – Number of reading taken in the alarm zone before the alarm goes off

0 – 1 reading
1 – 2 readings
2 – 4 readings
3 – 8 readings
4 – 16 readings
5 – 32 readings
6 – 64 readings
7 – 128 readings

Your alarm functions are now ready to use.