PR 4131 User Manual page 6

Mounting and connection of the device should comply with national legislation
for mounting of electric materials, i.e. wire cross section, protective fuse, and
location. Descriptions of input / output and supply connections are shown in the
block diagram and side label.
The following apply to fixed hazardous voltages-connected devices:
The max. size of the protective fuse is 10 A and, together with a power
switch, it should be easily accessible and close to the device. The power
switch should be marked with a label indicating that it will switch off the
volt age to the device.
Year of manufacture can be taken from the first two digits in the serial number.
UL INSTALLATIoN REqUIREmENTS
Use 60/75°C copper conducters only
For use only in pollution degree 2 or better
Max. ambient temperature ..................... 60°C
Max. wire size ......................................... AWG 26-14
UL file number ........................................ E231911
CALIBRATIoN AND ADjUSTmENT
During calibration and adjustment, the measuring and connection of external
voltages must be carried out according to the specifications of this manual. The
technician must use tools and instruments that are safe to use.
NoRmAL opERATIoN
Operators are only allowed to adjust and operate devices that are safely fixed
in panels, etc., thus avoiding the danger of personal injury and damage. This
means there is no electrical shock hazard, and the device is easily accessible.
CLEANING
When disconnected, the device may be cleaned with a cloth moistened with
distilled water.
LIABILITy
To the extent that the instructions in this manual are not strictly observed, the
customer cannot advance a demand against PR electronics A/S that would
otherwise exist according to the concluded sales agreement.
4 4131V104-UK