Cannon Instrument CT-1000 (Contant Temperature Bath) - Manual (Page 12)

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CANNON ® CT-1000 Constant Temperature Bath Instruction & Operation Manual
Revision 3.1e—June, 2011; CANNON ® Instrument Company
2139 High Tech Road • State College, PA • USA 16803
Figure 13: Filling the CT-1000 bath
Filling the bath
After CT-1000 assembly
is complete, you are
ready to fill the bath.
CAUTION Make sure that the bath
is placed in its intended
final position before
adding bath fluid. The
CT-1000 should not be
moved with bath fluid in
the bath jar. NEVER USE
FLAMMABLE BATH
LIQUIDS.
1. Make sure that the
instrument power is
OFF and select a
bath liquid appropri-
ate to your operating
temperature range (see APPENDIX C).
2. Fill the jar with bath liquid at ambient temperature to a level suffi-
cient to engage the float switch. This float permits bath operation
when the minimum amount of fluid has been added to the bath jar.
3. Continue to add fluid until the bath liquid level has risen to approxi-
mately 40 mm (1.5") of the top of the jar.
4. Turn the instrument power ON and incrementally heat the bath to
desired control temperature while monitoring the bath liquid level
carefully. The bath level must be 15-20 mm (approximately ½" to
¾") from the top of the jar at the control temperature. If it becomes
apparent that this liquid level will not be achieved, return the bath to
within 10°C of ambient, turn the instrument power OFF and add or
remove liquid as necessary.
5. Repeat step four until you have attained the proper bath liquid level
at the desired control temperature.
CAUTION Different bath fluids expand at different rates. Do not overfill the bath!
WARNING Monitor the level of bath liquid closely when operating the CT-1000 at
higher temperatures (100-150°C). The bath liquid will expand as the
temperature increases. The CT-1000 bath jar is not designed to contain
liquid under pressure. If the bath is overfilled, liquid may overflow.