Maintenance, Cleaning And Recalibration; Maintenance; Cleaning; Cleaning The Metal Block - WIKA CTD9100-ZERO Manual De Instrucciones

8. Maintenance, cleaning and recalibration

8. Maintenance, cleaning and recalibration
Personnel: skilled personnel
Protective equipment: safety goggles, protective gloves
For contact details, please see chapter
1 "General information" or the back page of the
operating instructions.

8.1 Maintenance

The model CTD9100-ZERO temperature dry-well calibrator
is maintenance-free.
Repairs must only be carried out by the manufacturer.
This does not apply to the fuse replacement.
Before replacing the fuse, the calibrator must be
disconnected by unplugging the power cord from the mains
voltage.
Only use original parts (see chapter 11 "Accessories").

8.2 Cleaning

CAUTION!
Physical injuries and damage to property
and the environment
Improper cleaning may lead to physical injuries
and damage to property and the environment.
Residual media in the temperature dry-well
calibrator can result in a risk to personnel, the
environment and equipment.
▶ Carry out the cleaning process as described
below.
1. Cool down the calibrator as described in chapter
6 "Cooling down the metal block".
2. Prior to cleaning, switch off and disconnect the calibrator
from the mains.
3. Use the requisite protective equipment.
4. Clean the instrument with a moist cloth. Electrical
connections must not come into contact with moisture!
CAUTION!
Damage to property
Improper cleaning may lead to damage to the
instrument!
▶
Do not use any aggressive cleaning agents.
▶
Do not use any pointed and hard objects for
cleaning.
5. Wash or clean the temperature dry-well calibrator, in
order to protect persons and the environment from
exposure to residual media.
WIKA operating instructions temperature dry well calibrator, model CTD9100-ZERO

8.2.1 Cleaning the metal block

With calibrators, during operation, a small amount of metallic
dust can cause the block and the test item to become
jammed. To prevent this, on a regular basis and before any
long period the calibrator will be out of use, purge the test
bores with compressed air.

8.2.2 Cleaning fan guards

On the base of each calibrator is a dense air grille, through
which the cooling air is supplied to the calibrator. Depending
on the cleanliness of the air, clean the grille at regular
intervals by vacuuming or brushing.

8.2.3 External cleaning

Clean the outside of the calibrator with a damp cloth and
some water, or with a solvent-free light detergent.

8.3 Recalibration

DKD/DAkkS certificate - official certificates:
The temperature dry-well calibrator has been adjusted and
tested before delivery using measuring devices that are
traceable to nationally recognised standards.
On the basis of DIN ISO 10012, the calibrator, depending
on the application, should be verified at appropriate periodic
intervals.
We recommend that the instrument is regularly recalibrated
by the manufacturer, with time intervals of approx. 12 months
or approximately 500 hours of operation.
In addition, every factory recalibration includes an extensive
free-of-charge check of all system parameters with respect to
their compliance with the specification. The basic settings will
be corrected if necessary.
The basis of the recalibration is the guidelines of the German
Calibration Service, DKD R5-4. The measures described
here should be used and followed for recalibration.
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