Safety And Installation Information - Knick WG 21 A7 Sicherheits- Und Installationshinweise

WG 21 A7

Safety and installation information

Be sure to read and observe the following instructions!
Safety information
Whenever it is likely that the protection has been impaired, the device shall be
made inoperative and secured against unintended operation.
The protection is likely to be impaired if, for example:
• the device shows visible damage
• the device fails to perform the intended measurements
• after prolonged storage at temperatures above 80 °C
• after severe transport stresses
Before recommissioning the device, a professional routine test in accordance with
EN 61010-1 must be performed. This test should be carried out at our factory.
Protection against electric shock: For applications with high working
voltages, you should ensure there is sufficient spacing or isolation from
neighboring devices and protection against electrical shocks.
Installation and commissioning
The Model WG 21 A7 is an associated equipment for operation outside hazardous
locations. The intrinsically safe current loop may be led into hazardous locations.
Only certified intrinsically safe circuits may be connected to the current loop.
Before commissioning it must be established that the intrinsic safety is maintained
when connecting the current loop to other equipment, including lines.
Be sure to observe the EC-Type-Examination Certificate and the regulations of
EN 60079-14 and the following.
Assembly / dismantling, installation, operation and maintenance may only be
carried out by qualified personnel as defined by the automation industry in
compliance with the applicable regulations and the operating instructions.
Be sure to observe the technical specifications and input ratings.
Proper use
The Model WG 21 A7 is used for the supply of intrinsically safe 2-wire transmit-
ters.
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