Badger Meter M-series Installation And Operation Manual - page 36
36
ADDENDUM B
MAINTENANCE
Mandatory, routine or scheduled maintenance should not be
required for the Badger M3000 Mag Meter electronics or flow
tube after proper installation.
However, some occurrences may require personnel to
perform the following:
· Flow Tube and Electrode Cleaning
· Fuse Replacement
· Amplifier I&C Card Stack Replacement
These maintenance procedures are discussed in this
section.
Disconnect main power to the unit before attempting
any device maintenance or cleaning. Do not clean
components inside the amplifier or junction box.
Flow Tube and Electrode Cleaning
At times flow tube, electrodes, amplifier/junction box
housings and the amplifier window may need periodic
cleaning, depending on process fluid properties, fluid flow
rate and surrounding environment.
Clean the flow tube and electrodes by following the
material handling and cleaning procedures documented
in MSD Sheets for the products(s) that were in contact
with the flow tube and electrodes.
Should flow tube and/or electrode cleaning become
necessary:
1. Disconnect detector from pipeline.
2. Clean electrodes with isopropyl alcohol or fresh, clean
water depending on the chemical compatibility of the
measured fluid.
3. Reconnect detector to pipeline
Fuse Replacement
Disconnect main power to the unit before attempting
any device maintenance.
Risk of electrical shock. Replace fuse ONLY with the
same type and rating.
Authorized personnel must perform fuse replacements.
Replace fuses with fuses of the same ampere rating and
type. Refer to wiring diagrams when ampere ratings are
unknown or questionable.
Detector coil and incoming amplifier power supplies are each
protected by a fuse in the amplifier.
Detector coils are protected by a 630mA, 250VAC, slow
blow fuse
Incoming amplifier power is protected by a 500mA, 250VAC,
slow blow fuse
Fuse ratings are listed on the circuit board, next to the fuse
holders. Refer to the M-Series, Model 4000
To access and replace fuses:
1. Remove display chamber cover. Turn the cover
counterclockwise to remove it from the amplifier. If
necessary, use a strap wrench.
2. Remove the 2 display card screws and washers.