Maintenance And Cleaning; Maintenance; Cleaning - WIKA 712.15.100 Manual

6. Maintenance and cleaning

6. Maintenance and cleaning

6.1 Maintenance

EN
The instruments are maintenance-free.
The indicator and switching function should be checked once or twice every year. For this the
instrument must be disconnected from the process to check with a pressure testing device.
WARNING!
Danger to life due to impermissible filling of the instrument with loss of
explosion protection
The filling of instruments leads to a loss of the explosion protection and can lead to
damage to the instrument.
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If a return is needed, please follow the instructions given in chapter 7.2 "Return".
Repairs must only be carried out by the manufacturer.

6.2 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.
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Carry out the cleaning process as described below.
1. Before cleaning, correctly disconnect the instrument from the pressure supply, switch it off
and disconnect it from the mains.
2. Use the requisite protective equipment.
3. Clean the instrument with a moist cloth.
Electrical connections must not come into contact with moisture!
CAUTION!
Damage to the instrument
Improper cleaning may lead to damage to the instrument!
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Do not use any aggressive cleaning agents.
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Do not use any hard or pointed objects for cleaning.
4. Wash or clean the dismounted instrument, in order to protect persons and the environment
from exposure to residual media.
Differential pressure gauge models 712.15.100, 732.15.100, optional for hazardous areas
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