
INTERMATIC INCORPORATED |1950 Innovation Way, Suite 300 |Libertyville, Illinois 60048 |www.Intermatic.com
Units with “DG4” Option are equipped with an Audible Alarm, three position Dry Relay Contact, Alarm Switches,
and Surge Counter. To access the Dry Relay Contact (DRC); see section DG2 above.
NOTE: Alarm test functions can only be performed after the SPD has been installed, connected and powered up.
Operation of Alarm Switches:
• The Audible Alarm module switches consist of Alarm Mute; Alarm On, Alarm Test located on the lid of the SPD. All
buttons are operated by pressing down on the button.
• Once power is applied to the SPD, turn Alarm on by pushing down the Alarm On button.
• To ensure Alarm is activated, push down and hold Alarm Test button. Alarm should sound and RED LED should turn on.
If no Alarm or RED LED, push Alarm On Button; then re-test.
• To MUTE Alarm, press down and release Alarm Mute button
Surge Counter Operation:
• The Surge Counter requires NO SETUP. Once the surge protective device (SPD) has been installed and connected and
powered up; the surge counter provides automatic operation.
• The Surge Counter can be reset (set to zero count) by pressing the button located to the left of the counter.
• You can enable “High Level” Surge Counter operation to adjust the sensitivity to count higher voltage surges only. Refer to
Page 2 Instructions.
Alarm will sound and RED LED will turn on when there has been a failure of surge suppression components.
Alarm will sound and RED LED will turn on when there has been a failure of surge suppression components.
DG3 (Internal Audible Alarm, Three Position Dry Relay Contact, Surge Counter)
DG4 (Internal Audible Alarm, Three Position Dry Relay Contact, Alarm Switches)
Units with “DG3” Option are equipped with an Audible Alarm, Surge Counter, and three position Dry Relay
Contact. To access the Dry Relay Contact (DRC); see section DG2 previously.
Surge Counter Operation:
• The Surge Counter requires NO SETUP. Once the surge protective device (SPD) has been installed and connected and
powered up; the Surge Counter provides automatic operation.
• The Surge Counter can be reset (set to zero count) by pressing the button located to the left of the counter.
High Surge Counter Operation:
• Set switches 1 and 2 (High Surge) to the On position (as shown below). This will enable the “High Surge” variable level counting.
• By rotating the potentiometer counter clockwise to the settings shown below, you can adjust the sensitivity of the surge
counter to count higher voltage surges
Potentiometer Settings
Counts at:
≥ 2kV/1kA
Counts at:
≥ 4kV/2kA
Counts at:
≥ 6kV / 3kA
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