Cannon Instrument CT-1000HT (High Temperature Contant Temperature Bath) - Manual (Page 11)

9
CANNON ® CT-1000HT Constant Temperature Bath
Revision 1.1b—June, 2011; CANNON ® Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
switch cords exit from the right opening (as viewed from the rear).
The back lip on the rear top cover fits into the slot on the top heater
housing. Line up the holes, insert screws, and tighten.
4. Connect all plugs and probes to the correspondingly labeled sockets
at the rear of the CT-1000HT bath unit.
5. Adjust the four feet on the bottom of the bath housing to level the
bath. This should be done before filling the bath with fluid.
Inserting viscometer tubes/thermometers
The top cover of the CT-1000HT contains seven apertures, 51 mm (2") in
diameter, for the insertion of viscometer tube holders. Two additional
holes are provided for insertion of thermometers.
Inserting viscometer tubes If necessary, remove the viscometer tube hole cover(s) from the top of
the bath and carefully place the viscometer tube(s), with the proper
holder attached, into the bath through the aperture(s) in the top cover.
NOTE After filling the bath with fluid, adjust the height of the viscometer tube(s)
to ensure that the liquid under test and/or any timing marks on the tube
are a minimum of 6 mm (¼") below the top level of the liquid.
Thermometer immersion Proper thermometer immersion is critical for viscosity measurements.
Even a calibrated thermometer will read incorrectly if is it improperly
immersed in the bath. “Total immersion” kinematic viscosity thermom-
eters should be used with the bulb and only the mercury column beneath
the surface of the liquid, but with the emergent stem above the surface at
ambient temperatures.
NOTE Different thermometers have different immersion requirements. Refer to the
information included with the thermometer in use for specific instructions.
Power/probe connections
Bath connections To complete electronic connections between CT-1000HT bath compo-
nents, attach the 9-pin thermistor connector from the bath to the
THER-
MISTORS connection on the controller rear panel. Connect the bath
power connector from the bath to the BATH POWER female connection
on the controller rear panel.
Thermistor Controller-bath power MAINS