WIKA TR21 Mode D'emploi page 23

11. Maintenance, cleaning and calibration
11.2 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 dismounted instrument can result in a
risk to persons, the environment and equipment.
▶
Carry out the cleaning process as described below.
▶ When cleaning from outside ("wash down"), observe the permissible temperature and
ingress protection.
▶ Prior to cleaning, properly disconnect the instrument.
▶ Use the required protective equipment (depending on the application; the thermometer
itself is basically not dangerous).
▶
Clean the instrument with a moist cloth.
This applies in particular to thermometers with a case made of plastic and cable
sensors with plastic-insulated connection lead, to ensure that any risk of electrostatic
charge is avoided.
Electrical connections must not come into contact with moisture!
CAUTION!
Damage to the instrument
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.
▶
Wash or clean the dismounted instrument, in order to protect persons and the
environment from exposure to residual media.
11.3 Calibration, recalibration
It is recommended that the measuring insert is recalibrated at regular intervals
(approx. 24 months). This period can reduce, depending on the particular application. The
calibration can be carried out by the manufacturer, as well as on site by qualified technical
staff with calibration instruments.
WIKA operating instructions model TR21
EN
23