Endress+Hauser HART Proline t-mass I 300, Руководство по эксплуатации

Страница: 155 / 202

Proline t-mass I 300 HART Maintenance
Hauser 155
12 Maintenance
12.1 Maintenance tasks
No special maintenance work is required.
12.1.1 Exterior cleaning
When cleaning the exterior of measuring devices, always use cleaning agents that do not
attack the surface of the housing or the seals.
12.1.2 Sensing element cleaning
Cleaning the sensing element
The measuring device can be removed for cleaning.
Use key size 36 mm (1.42 in) to remove the sensor.
L
WARNING
Injury from measuring device being ejected!
‣
Ensure the system is depressurized before commencing the cleaning work.
NOTICE
Damage to the sensing element!
‣
Make sure the sensing elements do not hit against anything.
NOTICE
The use of unsuitable equipment or cleaning liquids can damage the measuring
device.
‣
Do not use pigs to clean the pipe.
‣
Use an oil-free cleaning agent that does not form a film to clean the sensor.
NOTICE
Damage to the sealing surfaces!
‣
Make sure the sealing surfaces do not hit against anything.
1. Ensure the system is unpressurized.
2. Release the compression fitting of the measuring device.
3. Carefully remove the measuring device from the process pipe.
4.
NOTICE
The protective guard protects the sensing element from damage!
‣
Do not remove the protective guard.
Gently clean the sensing elements using a soft brush.
5. Carefully insert the measuring device into the process pipe.
 Make sure the measuring device is aligned correctly→  16,  29.
6. For PEEK ferrules:
Tighten compression fitting with 1 turn.
7. For metal ferrules:
Tighten compression fitting with a ¼ turn.
Increase the pressure in the piping system and check for leaks once the desired
pressure is reached.