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14
CAUTION
Inserting viscometer tubes/thermometers
Viscometer tube insertion
Thermometer immersion
NOTE
push button on the upper left corner of the Control Chassis rear panel.
This will empty any remaining fluid from the Overflow Jar and connec-
tion hoses into the bath. Turn off the TE-1500 after the remaining fluid
has been returned to the bath vessel.
Do NOT leave TE-1500 power on without liquid in the bath!
Siphon or vacuum the remaining bath liquid from the bath vessel.
The top cover of the TE-1500 contains two round holes 51 mm (two
inches) in diameter for the insertion of viscometer tube holders. An
additional hole is provided for the insertion of a thermometer.
Remove the cover(s) from the top of the bath and carefully place the
viscometer tube(s) into the plastic holders in the top cover. Insert the
tube(s) slowly to permit adequate time for the bath liquid displaced by
the tubes to drain through the overflow hole into the Overflow Jar.
Monitor the liquid level in the Overflow Jar carefully. If necessary, empty
excess fluid from the jar.
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 entire mercury column beneath the
surface of the liquid, but with the emergent stem above the surface at
ambient temperatures.
Kinematic viscosity thermometers are available from CANNON
Instrument Company. Consult APPENDIX A (Thermometry) for addi-
tional details.
Different thermometers have different installation requirements. Refer to
the information included with the thermometer in use for specific installa-
tion instructions.
®
TE-1500 Thermoelectric Constant Temperature Bath
CANNON
Revision 1.1b—January, 2007; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
®
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