Cold Water Rheology Instruction Manual
372144
Revision D, May 2012
10
5 Operation
Refer to the manufacturer’s instruction manual for operating the circulating bath. It
provides detailed instructions, such as initiating cool down and caring for the unit.
It takes the bath system approximately 30-45 minutes to take the sample below
freezing.
It is recommended that the sample be stirred at 100 RPM while cooling so that the
temperature is constant throughout the sample volume. The temperature in the bath
reservoir is not the same as the sample temperature; it may be two or more degrees
colder.
For accurate temperature measurements, use a thermometer. You may order a
thermometer separately. Fann offers three thermometers for use with this kit:
Glass thermometer, degrees Fahrenheit, P/N 206040
Glass thermometer, degrees Celsius, P/N 206041
Digital thermometer, P/N 206044
Please empty the bath reservoir before moving the bath. Some units do not have a
drain; use a cup to remove the coolant.
The coolant make-up is approximately 50% propylene glycol and 50% distilled
water. Store this mixture in a closed container or the plastic bottle that comes with
the kit.
Automotive coolant is NOT recommended because it puts undue wear on the
circulating pump.
Follow the manufacturer’s instructions for cleaning and drying the bath.
Propylene glycol is a toxic alcohol. Please review the MSDS
for propylene glycol for safe handling, storage, and disposal.
