DPM-200 Digital Panel Meter
Instruction Manual
16
4-20 mA Output & Input Signal
Connections
The DPM-200 X2, with an optional 4-20 mA output,
can be used as an isolated temperature transmitter
with a big display by converting the thermocouple or
RTD input into an isolated 4-20 mA output.
Connections for the 4-20 mA transmitter output are
made to the connector terminals labeled
“mA OUT: I-, I+”. The 4-20 mA output may be
powered from an internal power supply (optional) or
from an external power supply.
Figure 33. 4-20 mA Output & Input Signal
Powered by Meter
Models include PD765-6R3-20-BM
and PD765-6X3-20-BM
Figure 34. 4-20 mA Output Powered by Meter
Models include PD765-6R5-10-BM
and PD765-6X5-10-BM
Figure 35. 4-20 mA Output Powered Externally
Models include PD765-6R3-00-BM,
PD765-6X3-00-BM, PD765-7R3-00-BM,
PD765-7X3-00-BM, PD765-7R5-00-BM,
and PD765-7X5-00-BM
Other Uses for Transmitter Power
Supplies
The most common use for the DPM-200’s two power
supplies is for the 200 mA transmitter power supply to
power the field transmitter and the other power supply
to power the 4-20 mA output from the meter.
However, the power supplies can be used in other
ways. For instance, for level transmitters that require
the use of a heated lens, the DPM-200’s 200 mA
power supply could be used to power both the heated
lens and the 4-20 mA signal from the transmitter.
Figure 36. DPM-200 X2 Powers Both the Heater
and 4-20 mA Input Signal
External Button Contacts
The DPM-200 X2 is equipped with four external
button contacts that can be used to remotely operate
the DPM-200’s front panel buttons. For instance,
these button contacts can be used to program the
meter and to remotely acknowledge/reset the relays:
The external button contacts are particularly useful for
wiring up a remote button to reset the relays as
shown here:
COM
SIGNAL CONNECTOR
mA+
2
1
3
5
4
V+
T+
EXC
2-Wire
4-20 mA
Transmitter
-
+
I-
mA OUT
P2-
P1+
4
5
3
1
2
P2+
P1-
24V OUT
6
I+
Remote Display,
Chart Recorder,
etc.
+
-
I-
mA OUT
5
6
I+
Remote Display,
Chart Recorder,
etc.
+
-
24V OUT
P+
P-
1
2
External
Power
Supply
-
+
I-
mA OUT
5
6
I+
Remote Display,
Chart Recorder,
etc.
+
-
DW2206
POWER
SIGNAL
EXC T+
V+ mA+
COM
RTD
SWITCH
TC
SERIAL
TC
RTD
1 2 3 4 5 6
COM NO
NO
NC
NC COM
RELAY2
RELAY1
4
3
6
5
2
1
3
4
1
2
5
2
1
+
I
-
I
+
mA OUT
6
5
24V OUT
2
1
P+
P-
