KROHNE SMARTSENS PH 8xxx Ex EN - Manual (Page 14)

6
SERVICE
14
SMARTSENS PH 8XXX
www.krohne.com 07/2014 - 4002951402 - MA SMARTSENS PH 8xxx R02 en
Service
6.1 Maintenance
For systems in hazardous areas, regular checks are required in order to maintain the proper
condition. The manufacturer recommends the following maintenance measures:
• Check the housing, the cable entry and the feed lines for corrosion and/or damage.
• Check the process connection and the piping connections for leakage.
• Check the entire sensor for dust deposits.
6.2 Dismantling
In order to prevent injury or material damage when replacing the sensor, always observe the
following points:
• Before dismantling the electrical connecting lines of the device, ensure that all the cables
leading to the sensor are de-energised themselves and to the reference potential of the
explosive area.
• All the relevant process pipes or containers must be depressurised before dismounting the
sensor.
• If the process pipes or the container contain products that are harmful to the environment or
to health, implement the appropriate safety measures before dismantling the sensor.
• Replace all the seals when reinstalling the device in the process pipe or container.
CAUTION!
Maintenance measures of a safety-relevant nature within the meaning of explosion protection
may only be carried out by the manufacturer, his authorised representative or under the
supervision of authorised inspectors.
.book Page 14 Monday, July 21, 2014 3:08 PM