Copyright 2013 Baker Hughes Company.
English–Dry
TC / Liquid
TC Temperature Calibrators | 39
1. Disconnect the mains connection cable from the calibrator.
2. Prise open the fuse compartment from the bottom with a fingernail or a flat screwdriver.
3. Remove the compartment with the fuses.
4. Check the fuses and replace any blown fuses.
Note:
Always replace both fuses, even if only one has blown.
5. Fit the fuse compartment back in place and connect the mains connecting cable. See
4.2.
Note:
Should the fuses blow repeatedly, there is probably a fault with the calibrator. Send the
calibrator to Druck for repair.
8.2 Recalibration
The calibrator is adjusted and tested with measuring equipment in accordance with recognized
national standards prior to delivery.
The calibrator should, depending on the application situation, be inspected at appropriate
intervals on the basis of ISO
10012.
It is recommended to send the calibrator to Druck for recalibration after 36
months, or after a
maximum of 500 operating hours, whichever is sooner.
8.3 Cleaning
8.3.1 Exterior Chassis
Clean the calibrator with a dry or slightly damp lint-free cloth. Do not use sharp objects or
aggressive agents for cleaning.
Ensure that your cleaning agent cannot be a source of danger from a reaction with parts of the
calibrator or the materials inside. If unsure of clean agent compatibility, contact Druck Services.
8.3.2 Vent Grilles for Inlet Air
The grille openings, see Figure
1 items
11 and 12, in the base of the calibrator must be cleaned
at regular intervals. The cleaning interval depends upon on the air pollution at the installation site
and the amount of use.
1. Clean the grille openings by vacuuming or brushing.
8.3.3 Inserts
During normal operation, the inserts create small quantities of metal dust. This can result in an
insert getting stuck in the dry block.
1. Remove the insert from the dry block with the aid of the sleeve exchange tool.
2. Clean the insert and the dry block at regular intervals.
8.3.4 Micro Bath
Before cleaning, the micro bath must be drained as much as possible using the draining syringe.
Observe the instructions in the safety data sheet of the calibration liquid.
INFORMATION
If the vent grilles become obstructed, the thermal protection
fuse may trip. The thermal protection fuse in non-resettable. The calibrator
cannot be used anymore. The calibrator must be returned to Druck for repair.
Ensure that the grille openings are always kept clear.
INFORMATION
Before a prolonged shutdown of the calibrator, remove the
insert from the dry block or micro bath.
