Helios PD2-6400 High Voltage & High Current Meter
Instruction Manual
17
Current and Voltage Input
The following figures show examples of connecting the
meter for both current and voltage input. Note that in
addition to the connections, the AC/DC type switch
much also be set.
Figure 16. AC Current and Voltage Connections
Figure 17. AC Current Transformer and Voltage
Connections
Figure 18. DC Current and Voltage Connections
Relay Connections
Relay connections are made to two six-terminal
connectors labeled RELAY1
– RELAY4. Each relay’s
C terminal is common only to the normally open (NO)
and normally closed (NC) contacts of the
corresponding relay. The relays’ C terminals should
not be confused with the COM (common) terminal of
the INPUT SIGNAL connector.
Figure 19. Relay Connections
C
NO
NO
NC
NC
C
RELAY4
RELAY3
4
3
6
5
2
1
C
NO
NO
NC
NC
C
RELAY2
RELAY1
4
3
6
5
2
1
