WIKA D-11-7 - Manual (Page 13)

13 WIKA operating instructions pressure transmitter model D-1x-7
2478159.05 12/2011 GB/D/F/E
GB
Types of sealing
Correct sealing of the process connections with parallel threads at the sealing face  must be made using
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.
6. Commissioning, operation
Parallel threads Tapered threads
per EN 837 per DIN 3852-E NPT, R and PT
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