11 Problems and their removal
Operating manual mzr-11507
38
Technical data subject to change without prior notice!
Last update: August 2016
Error
Possible cause of error
Action
manufacturer
11 Leak of the fluid connections
Flangeless ferrules leak
Change the flangeless ferrules
12 Status of the pump cannot be checked
or calibrated
No contact/connection to the pump
Check the power supply of the pump
-„-
Check the connection of the zero modem
cable between PC and dosage system or
try to use a new cable
Motor control out of order
Switch the power supply for a short time
OFF and then ON to start the motor
control again
13 Over temperature
Pump surface dirty
Clean the pump surface
Pump works heavy
Flush the pump
14 Over current
Pump works heavy
Dosage needle damage, replace the
needle
-„-
Dosage needle blockade, clean or flush
the needle
Back-pressure valve not open
Flush the back-pressure valve
Particle in dosage liquid
Flush the pump
table 12
Trouble shooting guide
If unknown faults appear or an uncertainty arises from appearing faults in the
working with the pump, immediately shut down the micro annular gear pump
at first!