PD8-6262 Explosion-Proof Dual Analog Input Flow Rate/Totalizer
Instruction Manual
25
Power Connections
Power connections are made to a two-terminal
connector labeled POWER. The totalizer 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 7. Power Connections
Signal Connections
Signal connections are made to a nine-terminal
connector labeled SIGNAL. The COM (common)
terminals are the return for the 4-20 mA and the
10 V input signals. The two COM terminals connect
to the same common return, and are not isolated.
There are no switches or jumpers to set up for current
and voltage inputs. Setup and programming is
performed through the programming buttons or
MeterView Pro software.
Current (mA) Connections
The following figures show examples of current
connections.
INPUT SIGNALS
Figure 8. 2-Wire Transmitters
Powered by Internal Supply
INPUT SIGNALS
Figure 9. 3-Wire Transmitters
Powered by Internal Supply
INPUT SIGNALS
Figure 10. Transmitter Powered by
External Supply
INPUT SIGNALS
Figure 11. Self-Powered Transmitters
The current input is protected against current
overload by a resettable fuse. The display may or
may not show a fault condition depending on the
nature of the overload.
The fuse limits the current to a safe level when it
detects a fault condition, and automatically resets
itself when the fault condition is removed.
Voltage Connections
The following figures show examples of voltage
connections.
INPUT SIGNALS
Figure 12. 2-Wire Voltage Input Connection
INPUT SIGNALS
Figure 13. 3-Wire Voltage Input Connection
The meter is capable of accepting any voltage
from -10 VDC to +10 VDC.
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+
-
