WIKA PSD-4 Manual De Instrucciones página 13

5. Commissioning, operation
5.4 Electrical mounting
5.4.1 Requirements for voltage supply
→ For power supply see product label
The power supply for the pressure switch must be made via an energy-limited electrical circuit in accordance with
section 9.4 of UL/EN/IEC 61010-1, or an LPS per UL/EN/IEC 60950-1 / CSA C22.2 no. 60950-1, or class 2 in
accordance with UL1310/UL1585 (NEC or CEC). The voltage supply must be suitable for operation above 2,000 m
should the pressure switch be used at this altitude.
5.4.2 Requirements for electrical connection
Ingress protection of the mating connector corresponds to the ingress protection of the pressure switch.
■
Cable diameter matches the cable bushing of the mating connector.
■
Cable gland and seals of the mating connector are correctly seated.
■
No humidity can ingress at the cable end.
■
5.4.3 Requirement for shielding and grounding
The pressure switch must be shielded and grounded in accordance with the grounding concept of the application.
5.4.4 Connecting the instrument
1. Assemble the mating connector or cable outlet.
→Pin assignment, see product label
2 Establish the plug connection.
.
WIKA operating instructions pressure switch, model PSD-4
EN
13