Siemens SITRANS TW 7NG3242 Betriebsanleitung Seite 79

WARNING
When operating electrical equipment, certain parts of this equipment automati-
cally carry dangerous voltages. Failure to observe these instructions could there-
fore lead to serious injury and / or material damage.
The device's power supply plug may never be plugged in or removed when the
power is switched on. An appropriately labeled mains switch must be provided
close by when the device is installed.
Because the device contains terminals which it is dangerous to touch, the device
may only be installed in closed operations room, housings and cabinets to which
only qualified personnel has access.
This device is to be installed within a closed housing which, in regard to its
mechanical strength, conforms with the requirements of DIN EN 61010-1 or
another production safety standard for electrical devices. Operation of this device
is not permitted outside of an enclosure such as a switching cabinet or junction
box for example.
Only appropriately qualified personnel may work on or in the vicinity of this
device.
This personnel must be completely familiar with these operating instructions.
Devices with intrinsically safe type of protection lose their license when they are
operated on other circuits than those specified by the EC type examination
certificate (to be noted especially in chapter 6, page 125).
The perfect and safe operation of this equipment is conditional upon proper trans-
port, proper storage, installation and assembly as well as on careful operation
and commissioning.
The device may not be operated with the housing open.
The equipment may only be used for the purposes specified in this instruction
manual.
All modifications to the device which are not explicitly allowed require the express
approval of the manufacturer.
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.
SITRANS TW
A5E00054075-05
79