Badger Meter Series 4000 Sensor - 1/2, 3/4", 1" - Manual (Page 9)

Detecting Coil and Electronic Assembly Replacement
A #1 Phillips screwdriver is required for servicing electronics. It is not necessary to depressurize or drain the system to service the
electronics.
1. Disconnect sensor wiring from display or transmitter.
2. Using a Phillips screwdriver, loosen and remove the two #4 Phillips head screws and accompanying hardware.
LETTING ELECTRONIC ASSEMBLY DROP FROM SENSOR COULD DAMAGE DETECTING COIL.
3. Unplug coil from electronics NOTE: ON ANALOG UNITS THE COIL IS PERMANENTLY ATTACHED TO ELECTRONICS.
4. Plug coil to replacement electronics and reattach the electronics to the sensor with the two #4 Phillips screws.
BE SURE WIRES FROM COIL ARE TUCKED IN BEFORE TIGHTENING SCREWS. (See next page for replacement part
numbers).
5. To replace detecting coil, first remove the electronic assembly per Step 1. Unplug coil from electronics. Remove the two
#6 Phillips head screws, the coil retaining plate and secure to sensor housing with the #6 hardware. Plug replacement coil
to electronic assembly and fasten the electronics to the sensor with the hardware (see the next page for replacement part
numbers.) The coil wire orientation is not critical to the operation.
ELECTRONIC ASSEMBLY
#4 HARDWARE
#6 HARDWARE
COIL RETAINING PLATE
COIL
IMPELLER BODY
Figure 4: Coil and Electronic Assembly Replacement
Installation & Operation Manual
Page 9 April 2012