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7. Starting, operation
Mechanical connection
Please refer to our data sheet "Pressure gauge sealing washers AC 09.08" in WIKA's
„
product catalog Pressure and Temperature Measurement or our website
www.wika.de for details about sealing washers.
When mounting the instrument, ensure that the sealing faces of the instrument and
„
the measuring point are clean and undamaged.
Screw in or unscrew the instrument only via the flats using a suitable tool and the
„
prescribed torque. The appropriate torque depends on the dimension of the pressure
connection and on the sealing element used (form/material). Do not use the case as
working surface for screwing in or unscrewing the instrument.
When screwing the transmitter in, ensure that the threads are not jammed.
„
For tapped holes and welding sockets please see Technical Information IN 00.14 for
„
download at www.wika.de - Download
Electrical connection
Connect the instrument to earth via the pressure connection.
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For power supply, use a circuit with energy limitation (EN/UL/IEC 61010-1, section
„
9.3) with the following maximum values for the current: with U+ = 35 V (DC): 4 A.
Provide a separate switch for the external power supply.
Alternative for North America: The connection may also be made to „Class 2 Circuits"
or „Class 2 Power Units" according to CEC (Canadian Electrical Code) or NEC (Nati-
onal Electrical Code).
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio
Product label (example)
Product-No.
P #
Serial-No.
S #
PIN assignment
Coded manufacture date
GB
PSD-30
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