4
Figure 4:
Side View - Typical 300 Series Removable Connector Wiring
3/32” Flathead
Screwdriver
Series 300
Connector
Wire
Figure 5: Sample Power Supply Wiring Diagram
Electrical Installation
All connections to the Model 340BN are made to screw terminals
on removable headers.
Power Supply Wiring
The Model 340BN requires 12-24 volts AC or DC to operate. The
power connections are made to the ORANGE header. The con-
nections are labeled beside the header. Observe the polarity
shown on the label.
If a Badger Meter plug in type power supply (Model A-1026 or A-
503) is used, connect the black/white striped wire to the terminal
marked positive (+) and the black wire to the terminal marked
negative (-).
Note:
Connect the earth ground lug of the Model 340BN to a solid
earth ground with a wire which is as short as possible. This
will help prevent electrical interference from affecting the
Model 340BN’s normal operation.
Sensor Wiring
All flow sensor types connect to the four terminal header labeled
Sensor Input.
Series 200
Connect the flow sensor red wire to Model 340BN Sensor Input
Signal (+) terminal, and connect the flow sensor black wire to
Model 340BN Sensor Input Signal (-) terminal. The bare wire con-
nects to the Sensor Input Shield terminal.
SDI Series (standard pulse output option)
Connect SDI terminal number 3 to the Model 340BN transmitter
Sensor Input Signal (+) terminal, and SDI terminal number 2 to
the Model 340BN transmitter Sensor Input Signal (-) terminal.
Connect the shield terminal of the SDI sensor tot he Sensor Input
Shield terminal of the Model 340BN transmitter.
Other Sensors
The Sensor Input Power Out terminal on the 340BN transmitter
supplies nominal 12VDC excitation voltage for 3-wire sensors.
Connect the signal (+) and signal (-) terminals on the sensor to
corresponding terminals on the 340BN transmitter.
Note:
The green input LED flashes on and off as sensor pulses are
received.
Industrial
®
AC C /DC
-
Data
AC L /DC
Po
w
er In
-
+
BACnet
MS/TP
DC+
or
AC Load
Earth
Ground
DC -
or
AC Common
AC or DC
Power Supply
Signal
Se
nsor Input
Model: 340BN
S/N 340BN-XXXXXX
Power Out
Comm LED
MS/TP
Shield
-
+
®
BACnet
1
2
3
Temp 1
1
3
Temp 2
2
Input LED
Series 200
or
SDI
Shield
(if applicable)
Red Wire
or
Black Wire
or
Signal -
Figure 6: Sample Sensor Wiring Diagram
