Describe the bath during the fault
Record the set temperature, displayed temperature and the reading of any independent reference already used in your procedure. Include the time after start-up when the problem appeared. State whether the fault concerns heating, cooling, circulation, an alarm, a leak or an unstable indication. A recent operating record is more useful than an estimate made from memory.
Give the liquid type and fill level used, together with the lid, rack and probe load. Mention a fluid change, move to another bench or maintenance immediately before the problem began. RTS needs the normal arrangement as well as the failed condition.
Identify the parts of the system
Some baths have separate controllers, external circulation circuits or cooling units. List their model numbers and explain how they are connected. Photograph the equipment labels and identify any temperature reference that belongs to the bath kit. Do not send only the controller unless the receiving arrangement has been agreed; the symptom may depend on the assembled system.
Decide the repair and transport arrangements
Provide the size, approximate weight and plant location so the team can discuss whether assessment is practical on site or after dispatch. Agree how the working liquid and any external plumbing will be handled before moving the unit. The manufacturer's transport instructions and the receiving laboratory's requirements should accompany that decision.
Ask the estimate to identify the proposed repair, parts requiring approval and the checks included afterwards. A model may need manufacturer service or replacement rather than a local component repair. Confirm the available route before arranging a production shutdown around it.
Specify the result required after repair
An operational check can show that a bath heats or circulates again. Your calibration work may also require a comparison of the built-in indication, stability at a working point or temperature differences between positions. List those requirements separately. The site thermal entries in CC-4643 concern the indicator with sensor at a single position; a wider bath survey needs its own agreed plan.
Keep the fluid, depth, rack arrangement and operating points with the report so the next user can reproduce the checked condition.
Plan around the laboratory bench
For IMT Faridabad or another plant, name the person who releases the bath and the department that receives it back. Include the next planned use and any spare equipment available while the repair is assessed.