SICK PBT Manual De Instrucciones página 22

Operating Instructions
Electrical connection
Connect the instrument to ground via the pressure connection.
„
The power supply for the pressure transmitter must be made via an energy-limited elec-
„
trical circuit per section 9.3 of UL / EN / IEC 61010-1, or an LPS to UL / EN / IEC 60950-1,
or Class 2 per UL1310/UL1585 (NEC or CEC). The power supply must be suitable for
operation above 2,000 m should the pressure transmitter be used at this altitude.
Ingress protection per IEC 60529 (The ingress protection classes specified only apply while
„
the pressure transmitter is connected with female connectors that provide the correspon-
ding ingress protection).
Ensure that the cable diameter you select fits to the cable gland of the connector. Ensure
„
that the cable gland of the mounted connector is positioned correctly and that the sealings
are available and undamaged. Tighten the threaded connection and check the correct
position of the sealings in order to ensure the ingress protection.
Please make sure that the ends of cables with flying leads do not allow any ingress of
„
moisture.
Power supply
L /Q Positive supply / measurement connection
+
A
M Negative supply / measurement connection
DIN 175301-803 A
L-Connector,
for conducter cross section up
to max. 1.5 mm²,
conducter outer diameter 6-8 mm,
IP 65
22
7. Starting, operation
2-wire
L / Q
+
A
M
© SICK AG • Germany • All rights reserved
Load (e.g. display)
3-wire
Q
A
8013153/V620/2012/03/12
PBT
GB
L
+
M