Specifications

CANNON

CT-2000 Constant Temperature Bath

Revision 1.0g—February, 2012; CANNON

Instrument Company

2139 High Tech Road • State College, PA 16803 • USA

Problem Possible cause/solution

Bath does not heat. • Sensors not operational. Check connections for

sensors on rear panel.

• Temperature set lower than current bath

temperature. Check temperature setting — it

must be above existing bath temperature for

heat to go on.

• Bath fluid level may be too low. Add fluid per

manual instructions.

Bath control outside of specific limits. • Bath fluid viscosity may be too high (if the fluid

is too viscous at the desired temperature the

stirring will be inadequate, resulting in poor

control).

• Stirring motor or impeller may not be operating

properly. Check stirring motor and impeller.

• Faulty RTD probe. Remove control RTD probe

plug and check resistance with an ohmmeter

(approx. 100W at room temperature).

Bath top surface temperature too high. • Defective fan. Check cooling fan on rear panel

and in top assembly.

Air bubbles in bath fluid. • Level of fluid may be too low. Add fluid per

manual instructions.

• Stirring impeller may be on shaft with the wrong

orientation. See APPENDIX B.

• Bath fluid may be too viscous for operation at

this temperature. Replace with appropriate fluid.