PKP DS04.1, Instruction Manual, Page: 12 / 17

Troubleshooting guide
Fault description Cause Remedy
The switch contact does not
switch No medium flowing through
flow monitor Check that medium is
flowing through the pipeline
Flow is too low or the switch
contact is set too high Adjust the switch contact to
a lower flow rate
Use the device at another
measuring range
Increase the flow rate
Incorrect reduction fitting or
pipe diameter is too small Correct pipe diameter
Float is stuck Disassemble and clean the
device
Switch contact is defective Remedy the cause of the
defect (short-circuit,
overload)
Replace the switch contact
Switch contact is
permanently switched Flow is too high or the switch
contact is set too low Reduce the flow
Adjust the switch contact to
a higher flow rate
Use the device at another
measuring range
Switch contact is
permanently switched Float is stuck Disassemble and clean the
device
Switch contact is defective Remedy the cause of the
defect (short-circuit,
overload)
Replace the switch contact
The switch point is not the
same as the actual flow rate Improper scale installed for
media used Request proper conversion
table or scale for media
used
Incorrect reduction fitting or
pipe diameter is too small Correct pipe diameter
Device is dirty Disassemble and clean the
device
Device is defective Remove device from system
and contact PKP
DS04 Instruction manual 03/2020 page 12