Helios PD2-6400 High Voltage & High Current Meter
Instruction Manual
16
Power Connections
Power connections are made to a two-terminal
connector labeled POWER. The meter will operate
regardless of DC polarity connection. The + and -
symbols are only a suggested wiring convention. There
are separate models for low voltage and high voltage
power. See
details.
Figure 10. Power Connections
Signal Connections
Signal connections are made to a four-terminal
connector labeled SIGNAL. The I+ and I- terminals
are used for Channel A (CH-A) as the current input
terminals. The V+ and V- terminals are used for
Channel V (CH-V) as the voltage input terminals.
In addition to the signal connections, the switch
labeled TYPE must be set to AC (alternating current)
or DC (direct current) to accept the corresponding
type of voltage and current signals.
Voltage Input
The following figures show examples of connecting the
meter for a voltage input. Note that in addition to the
connections, the AC/DC type switch much also be set.
Figure 11. AC Voltage Input Connection
Figure 12. DC Voltage Input Connections
Current Input
The following figures show examples of connecting the
meter for a current input. Note that in addition to the
connections, the AC/DC type switch much also be set.
Figure 13. AC Current Connections
Figure 14. AC Current Transformer Connections
Figure 15. DC Current Connections
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+
-
HOT
NEUTRAL
INPUT SIGNAL
I-
V+
I+
V-
3
4
1
2
COM
F4
1
2
TYPE
AC
DC
V
AC
INPUT SIGNAL
I-
V+
I+
V-
3
4
1
2
COM
F4
1
2
TYPE
AC
DC
V
DC
