CANNON Instrument Company® | Maintenance and Service
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10.
Using the GUI touch-screen, select and open the firmware update in the firmware update directory
on the E: drive.
11.
Remove the USB flash drive.
12.
To update a sample handler or valve controller, connect a USB cable between the USB connection
and the appropriate controller board. Both bath controllers can be updated without connecting
them with a USB cable.
13.
Repeat steps 7 through 10 as necessary to update all applicable controller boards.
14.
Click
Save And Exit
.
15.
Power cycle the unit by completely turning it off with the power switch on the hood, waiting 10
seconds, then turning it on.
Update the VISCPRO II software
Run the VISCPRO II installation program. Follow all instructions in the installation program.
Change Viscometer Tube
Warning:
Do not drain the silicone bath fluid until it has cooled off to a
safe temperature
.
1.
Turn off the CAV 4.2 and allow the bath to cool down.
2.
Drain the silicone bath fluid into a clean container and save for refilling the unit.
3.
Raise the hood.
4.
Note the solvent line connections. Gently unscrew the solvent lines from the top of the viscometer
tube.
5.
Disconnect the sensor cable by gently pulling straight up.
6.
Unscrew the thumb screws until they spring free of the bath top.
7.
Gently draw the viscometer tube straight up and out of the bath.
8.
Inspect the new viscometer tube for defects, especially small chips on the top and bottom of the
tube. These can cause vacuum leaks and problems with solvent contamination.
9.
Clean the bottom of the new tube and apply a light coating of silicone bath fluid.
10.
Gently lower the viscometer tube into the bath and press it into the cone of the tube tip in the
bottom of the bath. The viscometer tube must pass through 2 O-rings in the cone and seat gently
onto the top of the metal tube tip. Failure to seat the viscometer tube properly may result in poor
performance.
11.
Press the top bracket into position and evenly tighten the thumb screws.
12.
Verify that the bath drain set screw is tight and refill the bath with silicone bath fluid.
