Technical Data - Mettler Toledo QLX3 Benutzerhandbuch

Error symptom
The status light of the
pump does not blink when
the device is connected to
power.
On the display, the QL3
pump does not appear in
the list of devices
connected to the balance.

8 Technical Data

Refer to the Reference Manual (RM) of your balance or dosing module for more information.
Manuals are available online or through your METTLER TOLEDO service representative.
22
Possible cause
The sealing ring and/or
fastening nut are
damaged.
The pump is disconnected
from power.
The pump is damaged.
The pump is disconnected
from power.
The USB cable is not
properly connected.
The USB cable is
damaged.
The USB-A port of the
balance is damaged.
The pump is damaged.
Diagnostic
–
Disconnect and reconnect
the AC/DC adapter from
the pump. The indicator
light should blink once
when the device is
connected to power.
Check that the AC/DC
adapter and the power
cable are not damaged.
Check with another pump,
if available.
Disconnect and reconnect
the AC/DC adapter from
the pump. The indicator
light should blink once
when the device is
connected to power.
Check that the AC/DC
adapter and the power
cable are not damaged.
Check that the USB cable
is connected properly.
Check that the USB cable
is not damaged.
Disconnect the pump from
the USB-A port of the
balance. Connect a USB
mouse to the same USB-A
port. Verify that a pointer
(arrow) appears on the
terminal and can be
moved by moving the
mouse.
Check with another pump,
if available.
Remedy
Change the sealing ring
and the fastening nut at
the bottle cap and/or the
dosing head. See
"Maintenance".
Make sure that the end of
the tube is cut straight.
Replace the AC/DC
adapter and power cable.
Replace the pump.
Contact your METTLER
TOLEDO service represen-
tative.
Replace the AC/DC
adapter and power cable.
Connect the USB cable
properly.
Replace the USB cable.
If the mouse pointer does
not appear, contact your
METTLER TOLEDO service
representative.
Replace the pump.
Contact your METTLER
TOLEDO service represen-
tative.
QLX3 liquid module