15
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
3.
Attach the quick
connect tubing from
the matching con-
nector on the regula-
tor to the
PURGE
IN
connector on the
head unit rear panel.
Secure both connec-
tions by turning the
tube fitting clock-
wise until the
connection snaps
securely into place.
If necessary, turning the tube fitting counterclockwise will release
the connection.
4.
Attach the regulated pressure line from your nitrogen source (3 psig
maximum recommended) to the fitting opposite the flow adjust
control on the gas purge regulator.
5.
Engage the regulated flow of gas and turn the flow adjust dial until
the float is in the middle of the scale. When the flow has been
adjusted, turn off the flow at the nitrogen source. You may restore it
prior to running the temperature profile for your samples.
For additional information consult the flow meter instructions and
calibration certficate shipped with your flow meter.
WARNING
Never exceed the maximum pressure of 200 PSIG for gas pressure to
the regulator, as it will create a hazard.
Maintaining the air filters
The CMRV-5000 has been designed with easily-replaceable air filters for
the cooling fans on the front and rear of the Control Unit housing. The
filters help ensure adequate function of the fans, which help remove heat
from the hot side of the thermoelectric cooling units. The filters should
be replaced every three months if the instrument is used constantly, or
every six months if the instrument is used frequently.
To replace filters, slide the filters out of the mounting slots on the front
and rear of the Control Unit. Then slide in the replacement filters.
Cleaning the instrument housing
Periodically clean the outside of the unit with a damp cloth moistened
with water and/or a mild detergent solution.
CAUTION
Because of temperature extremes of viscosity testing, use caution
handling the CMRV viscometer cells before or after a test. Do not clean
the instrument unless the cell temperature is within 10°C of ambient.
Before cleaning the CMRV housing, turn off the instrument and unplug
the power cord.
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