Making The Electrical Connection - WIKA D-1-7 Serie Manual De Instrucciones

6. Commissioning, operation
Types of sealing
Parallel threads
per EN 837
1
Correct sealing of the process connections with parallel threads at the sealing face
suitable flat gaskets, sealing rings or WIKA profile sealings.
The sealing of tapered threads (e.g. NPT threads) is made by providing the thread with additional
sealing material such as, for example, PTFE tape (EN 837-2).
For further information on seals see WIKA data sheet AC 09.08 or under www.wika.com.

6.2 Making the electrical connection

The pressure transmitter must be earthed via the process connection.
■
Use the instrument with shielded cable.
■
Earth the shield on at least one end of the lead.
■
Only ever use a power source that ensures a safe electrical isolation of the operating voltage in
■
accordance with IEC/DIN EN 60204-1. In addition, observe the general requirements for PELV
circuits in accordance with IEC/DIN EN 60204-1.
WIKA operating instructions pressure transmitter model D-1x-7
per DIN 3852-E
1
Tapered threads
NPT, R and PT
must be made using

13
GB