Additional Notes For Instruments With Ehedg And 3-A; Mounting Instructions; Cleaning In Place (Cip) Cleaning Process; Faults - WIKA TW61 Mode D'emploi

6. Additional notes for instruments with ... / 7. Faults

6. Additional notes for instruments with EHEDG and 3-A

6.1 Mounting instructions

Observe the following instructions, especially for EHEDG certified and 3-A conform
EN
instruments.
Mount the electrical thermometer, including the thermowell, with minimal dead space
■
and able to be cleaned easily.
Installation position of the thermowell should be designed to be self-draining.
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The mounting position must not form a draining point or cause a basin to be formed.
■

6.2 Cleaning in place (CIP) cleaning process

Only use cleaning agents which are suitable for the seals used.
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Cleaning agents must not be abrasive nor corrosively attack the materials of the wetted
■
parts.
Avoid thermal shocks or fast changes in the temperature. The temperature difference
■
between the cleaning agent and rinsing with clear water should be as low as possible.
Negative example: Cleaning with 80 °C and rinsing at +4 °C with clear water.

7. Faults

CAUTION!
Physical injuries and damage to property and the environment
If faults cannot be eliminated by means of the listed measures, the instrument
must be taken out of operation immediately.
▶
Contact the manufacturer.
▶
If a return is needed, please follow the instructions given in chapter 9.2
"Return".
For contact details see chapter 1 "General information" or the back page of the
operating instructions.
Faults
Not possible to insert the
temperature probe into the
thermowell
14
Causes
Foreign bodies in the thermowell
Damaged or contaminated
fastening thread on thermowell or
temperature probe
Damaged fastening thread on
thermowell or temperature probe
Thermowell or probe has been bent
or damaged during installation
WIKA operating instructions thermowell, model TW61
Measures
Remove foreign bodies
Clean the threads
Return the thermowell
(see chapter 9.2 "Return")
Return for repair