Fault description Cause Remedy Personnel
No. 19: The identifier
appears
followed by the message
‘Negative pressure ’
.
The pump has detected too
low a back pressure.
Rectify the cause and
acknowledge the error.
Technical
personnel
No. 20: The identifier
and the
message
‘Module missing’
appear.
The optional module is
missing.
Insert the optional module. Technical
personnel
Communication between
the optional module and
pump electronics is not
working.
Return the pump to ProMinent.
No. 21: The identifier
and the
message
‘Module
communication’
appear.
The bus contact between
the optional module and
control room has been dis‐
connected.
Rectify the cause (cable, con‐
trol room ...)
Technical
personnel
15.2.2 Warning messages on the LCD screen
In the event of a warning:
n the yellow LED display lights up!
n an identifier and a message appear on the LCD screen.
Fault description Cause Remedy Personnel
No. 0:
‘Level’
and the identifier
appear.
The fluid level in the storage
tank has reached "Liquid
level low 1st stage".
Top up the storage
tank.
Instructed per‐
sonnel
No. 1: The identifier appears fol‐
lowed by the message
‘Diaphragm
rupture’
.
The diaphragm is broken. Replace the dia‐
phragm and clean
the diaphragm rup‐
ture indicator, refer
to the "Repair"
chapter.
Technical per‐
sonnel
No. 2: The identifier
appears fol‐
lowed by the message
‘Defective
stroke met.’
.
The metering monitor
reported more defective
strokes than was set in the
‘Inputs/Outputs’
menu.
Press the
[Clickwheel]
.
Investigate and clear
the cause.
Technical per‐
sonnel
No. 3: The identifier
and the
message
‘Invalid metering volume’
appear.
The set metering volume in
concentration mode cannot
be metered.
Adjust the metering
parameters.
Technical per‐
sonnel
No. 4: The identifier
and the
message
‘Invalid parameter’
appear.
A set parameter is invalid. Adjust the param‐
eter.
Technical per‐
sonnel
No. 5: The identifier
and the
message
‘Fan warning’
appear.
The fan is faulty or not con‐
nected.
Return the pump to
ProMinent.
No. 6: The identifier
appears fol‐
lowed by the message
‘System
warning’
.
An internal system warning
or an incorrect solenoid
assignment has been
detected.
Return the pump to
ProMinent.
No. 7: The identifier
appears fol‐
lowed by the message
‘Air in
dosinghead’
.
Gas bubbles in the liquid end
(leaks, gaseous medium, ...)
Bleed the liquid end
and rectify the
cause. Seal the
system or slow the
suction stroke.
Technical per‐
sonnel
Troubleshooting
108
DosingPump.ir
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