Front panel operations – Cannon Instrument CMRV-5000 User Manual
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CANNON
®
Mini-Rotary Viscometer
CMRV-5000 Instruction & Operation Manual
Version 1.0b—August, 2011; CANNON
®
Instrument Company
2139 High Tech Road • State College, PA • 16803 • USA
weight are provided. Weights vary depending
on the ASTM Method used for testing.
Temperature probe
CMRV-5000 block temperature is detected by
a 3k-ohm temperature probe, which must be
seated securely in the thermistor aperture at
the side of the CMRV housing and plugged
into the electronic chassis.
Thermometers
The CMRV-5000 unit is shipped from CAN-
NON
®
with two thermometers to be used to
check the temperature of the block.
The long thermometer used for the probe
and cell calibrations is a PRINCO mer-
cury-thallium calibrated thermometer with
a range of -46°C to +30°C in .2°C increments and an accuracy of ±
0.01°C below 20°C.
The shorter, high-temperature uncalibrated thermometer has a range
of 0°C to 105°C in 1°C increments with an accuracy of ± 1°C.
NOTE
If a thermometer is removed from
the CMRV-5000 when the unit is
cooling, plug the thermometer
aperture in the Plexiglas
®
cover to
prevent ice formation around the
rotors.
Cell caps
Cell caps are used to enhance
temperature control and prevent
condensation in the CMRV cells
during the cooling phase of the
temperature profile.
Front panel operations
CMRV front panel
Control features
CMRV front panel control features are simple and functional. The switch
on the front panel is the power switch for the unit. The light-emitting
Hook-weights
Cell caps