Capillary Sensor Troubleshooting And Replacement - MES SQA-V Gold Service Manual

SQA-V
and
How to replace the Surge Protector:

Turn off the SQA-V and disconnect the power
cable from the rear panel.

Remove the printer from the rear panel

Disconnect the printer cable and set the
printer aside.

Pull down and separate the two green sections
of the surge protector.

Using a 5.5mm socket screw driver, unscrew
the 4 nuts connecting the Surge Protector to
the rear panel.

Replace the surge protector "body" (grey
part) with a new one.

Replace the four nuts.

Reconnect the printer cable and return the
printer to its designated location on the rear
panel.

Cl
Capillary
Capillary Sensor Troubleshooting and Replacement (KHD-908-000846 REV 02)
Sensor Issue: When the SQA-V is turned on, it fails SELF TEST.

Ensure there is no testing capillary in the measurement compartment.

Remove the SQA-V from sources of electronic noise (cell phones, etc.).

Clean the measurement compartment per User Guide instructions.

Reboot the SQA-V without a testing capillary in the chamber:

Turn the system off then back on at the main switch on the rear panel.

Press the front panel On/Off key to begin Auto-Calibration and Stabilization.

In case the self- test keeps failing after the reboot do the following:

Print a copy of the SELF- TEST parameters.

Check parameter #17. This parameter represents the noise level. In case the value
is higher than 3- the noise level is too high. In this case replace the cables
connecting the Optical Board to the LED Board.

Check the values of Conc 1, Conc 2 and Conc. 3. If these values are ZERO, the
capillary sensor might be damaged and needs to be replaced.
Service Manual 24_Apr_2014
ose the SQA-V.
Remove the Printer
Disconnect the
Printer Cables
Separate the two
sections
Remove the Surge
Protector
27