14.2
Fault alerts
Fault description
The red LED displays lights up, the "Level"
symbol
appears flashing in the LCD display
as well as the symbols for "Error" and "Stop",
and the pump stops.
The red LED displays lights up, the "i < 4 mA"
symbol
appears flashing in the LCD dis‐
i < 4
i < 4
play as well as the symbols for "Error" and
"Stop", and the pump stops.
The red LED displays lights up, the "i > 23
mA" symbol
appears flashing in the LCD
i > 23
i > 23
display as well as the symbols for "Error" and
"Stop", and the pump stops.
The red LED displays lights up, the "m" and
"External" symbols
appear flashing in the
LCD display as well as the symbols for "Error"
and "Stop", and the pump stops.
The red LED displays lights up, the "Tem‐
perature" symbol
appears flashing in the
C
F
LCD display as well as the symbols for "Error"
and "Stop", and the pump stops.
The red LED displays lights up, the "Stroke
length adjustment" symbol
flashing in the LCD display as well as the
symbols for "Error" and "Stop", and the pump
stops.
14.3
Fault alerts / warning alerts
Fault description
Either the yellow LED display lights up, the
"Flow" symbol
appears flashing in the LCD
display - or, together with the red LED display,
the symbols for "Error" and "Stop" also appear,
and the pump stops.
Either the yellow LED display lights up, the "Dia‐
phragm" symbol appears flashing in the LCD
display - or, together with the red LED display,
the symbols for "Error" and "Stop" also appear,
and the pump stops.
Cause
The fluid level in the
storage tank has reached
"liquid level low 2nd
stage".
The pump is in "Analog"
operating mode, a fault
behaviour has been pro‐
grammed in the
ANALOG menu and the
control current has fallen
below 4 mA.
The pump is in "Analog"
operating mode, a fault
behaviour has been pro‐
grammed in the
ANALOG menu and the
control current has risen
above 23 mA.
The stroke memory has
overflown.
The pump is overloaded.
The temperature is too
high.
The stroke adjustment
dial was rotated while the
appears
menu was locked.
At issue here are error alerts, which dependent on the setting in the setting
menu are displayed as fault alerts or warning alerts.
Cause
The dosing monitor
is not correctly con‐
nected.
The dosing monitor
reported too few
strokes, more that
set in the FLOW
menu.
The diaphragm is
broken.
Troubleshooting
Remedy
Fill the storage tank.
Clear the cause of the low
control current or
Switch the programming of
the fault behaviour to "OFF" -
see chapter "Settings for
'Analog' operating mode".
Clear the cause of the high
control current or
switch the programming of the
fault behaviour to "OFF" - see
chapter "Settings for 'Analog'
operating mode".
Rectify the cause, then
[P] (think through the
press
consequences for the
process!).
Rectify the cause, then
[P] (think through the
press
consequences for the
process!).
Rectify the cause, then
[P] (think through the
press
consequences for the
process!).
Turn the stroke adjustment
dial back or enter the code.
Remedy
Connect the dosing monitor cor‐
rectly and
[P] .
press
[P] .
Press
Investigate and clear the cause
Replace the diaphragm and
clean the diaphragm rupture
reporter, refer to the "Overhaul"
chapter.
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81
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