GE CTR 80 User Manual

12 Maintenance• The calibration instrument has been designed with the utmost care. Easeof operation and simplicity of maintenance have been a central theme inthe product development. Therefore, with proper care the instrumentshould require very little maintenance. Avoid operating the instrument indirty or dusty environments.• If the outside of the bath becomes soiled, it may be wiped clean with adamp cloth and mild detergent. Do not use harsh chemicals on the surfacewhich may damage the paint.• Periodically check the fluid level in the bath to ensure that the level hasnot dropped. A drop in the fluid level affects the stability of the bath.Changes in fluid level are dependent upon several factors specific to theenvironment in which the equipment is used. A schedule cannot be out-lined to meet each environmental setting. Therefore, the first year the bathshould be checked weekly with notes kept as to changes in bath fluid. Af-ter the first year, the user can set up a maintenance schedule based on thedata specific to the application.• Heat transfer medium lifetime is dependent upon the type of medium andthe environment. The fluid should be checked at least every month for thefirst year and regularly thereafter. This fluid check provides a baseline forknowledge of bath operation with clean, usable fluid. Once some fluidshave become compromised, the break down can occur rapidly. Particularattention should be paid to the viscosity of the fluid. A significant changein the viscosity can indicate that the fluid is contaminated, being used out-side of its temperature limits, contains ice particles, or is close to a chemi-cal break-down. Once data has been gathered, a specific maintenanceschedule can be outline for the instrument. Refer to the General Operationsection (Section 8) for more information about the different types of flu-ids used in calibration baths.• If a hazardous material is spilt on or inside the equipment, the user is re-sponsible for taking the appropriate decontamination steps as out-lined bythe national safety council with respect to the material. MSDS sheets ap-plicable to all fluids used in the baths should be kept in close proximity tothe instrument.• If the mains supply cord becomes damaged, replace it with a cord withthe appropriate gauge wire for the current of the bath. If there are anyquestions, call GE Kaye Instruments Customer Service for more informa-tion.• Before using any cleaning or decontamination method except those rec-ommended by Kaye, users should check with GE Kaye Instruments Cus-5512 Maintenance