The following diagrams show how to wire most of the flow
transmitters supplied with Badger Meter flow meters.
Connection of transmitters from other manufacturers is
similar. This section deals with pulse outputs generated by
reed switches and by current sinking open collector transis-
tors, the most common types of outputs found in flow meter
pulse transmitters.
Note: A jumper between terminals #12 and #18 will double
the transmitter output frequency.
WARNING!! Transmitter lines carry very low power sig-
nals and are sensitive to external noise. Always use shielded
cable and keep AC power lines away from signal lines. Do not
bundle or route these together since this may cause erratic
operation of the PC100. DO NOT ground the cable shield at
the transmitter end.
• REED SWITCH TRANSMITTERS (Type A)
Reed switch transmitters close a contact to DC common.
Switches of this type have outputs of less than 150 HZ and
generate contact bounce.
Therefore, installation of a jumper between terminals
#12 and #13 is required. This effectively filters the unwanted
extra closures caused by contact bounce. (Jumper termi-
nals #11 and #12 if using transmitter input 2 on terminal
#10).
• EPT1XP & PEPT1 (TYPE B)
These models require that a special current regulator
supplied with the transmitter be installed exactly as shown.
Reversing the polarity will damage the transmitter. No
pulses will be detected without it.
HOW TO CONNECT THE PC100
TO AC OR DC POWER
6
HOW TO CONNECT SIGNAL
TRANSMITTERS TO THE PC100
CAUTION: To prevent accidents, power connection should
be made only after all other connections have been com-
pleted.
The PC100 is a microprocessor controller. It is important
that the power supply be as "clean" as possible. Avoid using
power lines that feed heavy loads such as pumps, motors, etc.
If dedicated lines are not available, a filtering or isolation
system might be required.
It is recommended that fuse protection be installed. Use
a 2/10th amp slow blow fuse on 120 VAC and a 1/10th amp slow
blow fuse on 240 VAC supply.
Typical US electrical code identifies the black wire as the
hot or hi lead, the white wire as the low or neutral lead, and
the green wire as the chassis ground lead.
For 240 VAC operation:
USA
Europe
Black
Blue
Red
Brown
Green
Green/yellow
DC supply for mobile operation or as a backup supply can
be done with a battery or other DC supply of 11-16 VDC/1amp.
Note: DC supply will not be available from terminal #20
when powering the unit with DC current.
MSE5XP
MSE5XP
EPT-1XP
Summary of Contents for PC100
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