4
Figure 4:
Side View - Typical 300 Series Removable Connector Wiring
Figure 5: Sample Power Supply Wiring Diagram
Electrical Installation
All connections to the Model 340MB are made to screw terminals
on removable headers .
Power Supply Wiring
The Model 340MB requires 12-24 volts AC or DC to operate .
The power connections are made to the ORANGE header . The
connections 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 termi-
nal marked positive (+) and the black wire to the terminal marked
negative (-) .
Note:
Connect the earth ground lug of the Model 340MB to a solid
earth ground with a wire which is as short as possible. This
will help prevent electrical interference from affecting the
Model 340MB’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 340MB Sensor Input
Signal (+) terminal, and connect the flow sensor black wire to Model
340MB Sensor Input Signal (-) terminal . The bare wire connects
to the Sensor Input Shield terminal .
SDI Series (standard pulse output option)
Connect SDI terminal number 3 to the Model 340MB transmitter
Sensor Input Signal (+) terminal, and SDI terminal number 2 to
the Model 340MB transmitter Sensor Input Signal (-) terminal .
Connect the shield terminal of the SDI sensor tot he Sensor Input
Shield terminal of the Model 340MB transmitter .
Other Sensors
The Sensor Input Power Out terminal on the 340MB transmitter
supplies nominal 12VDC excitation voltage for 3-wire sensors .
Connect the signal (+) and signal (-) terminals on the sensor to
corresponding terminals on the 340MB transmitter .
Note:
The green input LED flashes on and off as sensor pulses
are received.
Industrial
AC C /DC
Signal
Sensor Input
Model: 340MB
S/N 340BN-XXXXXX
Power Out
Comm LED
Shield
-
+
1
2
3
Temp 1
1
3
Temp 2
2
Input LED
Data
AC L /DC
Po
wer In
-
+
DC+
or
AC Load
Series 200
or
SDI Sensor
Shield
(if applicable)
Red Wire
or
Earth
Ground
DC -
or
AC Common
AC or DC
Power Supply
Black Wire
or
Signal -
Figure 6: Sample Sensor Wiring Diagram
PRELIMINARY
