General Notes; Qualified Personnel - Siemens Sitrans P DS III PA Serie Servicehandbuch

Service manual

General notes

Excluded liability:
The user is responsible for all changes made on the device, provided that these are
not explicitly mentioned in the operating instructions.
WARNING
This work must only be carried out by qualified personnel with subject knowledge.
Only original spare parts must be used.
Exchanging components among different devices is not permissible.

Qualified personnel

are persons familiar with the installation, assembly, commisioning and operation of
the product and who have the appropriate qualifications for their activities such as:
training or instruction or authorization to operate and maintain devices/systems

according to the standard of safety technology for electrical circuits, high pres-
sures and corrosive as well as hazardous media.
for devices with explosion protection: training or instruction or authorization to be

allowed to work on electrical circuits for potentially explosive systems.
training or instruction according to the standards of safety engineering in the care

and use of suitable safety equipment.
CAUTION
Modules which are sensitive to electrostatic charge may be destroyed by voltages
which are far below the human level of perception. These voltages occur already
when you touch a component or electrical connections of a module without first
discharging yourself electrostatically. The damage incurred by a module as a
result of an overvoltage is not usually immediately perceptible but only becomes
noticeable after a long time in operation. Therefore, a suitable equipotential bond-
ing must be guaranteed when repairing the device.
44
A5E00078060-04