Electrical Data With Built-In Transmitter Or Digital Display; Electrical Data With Built-In Transmitter In Accordance With The Fisco Model; Tightening Torques; Tightening Torques Between Cable Gland And Connection Head - WIKA TR25 Mode D'emploi

5. Commissioning, operation

5.2.2 Electrical data with built-in transmitter or digital display

For the sensor circuit, the values mentioned in 8.1 apply.
Signal circuit in Ex ia or ib, IIC intrinsic safety ignition protection
EN
U = depending on the transmitter/digital display
i
I = depending on the transmitter/digital display
i
P = in the case: Depending on the transmitter/digital display
i
C = depending on the transmitter/digital display
i
L = depending on the transmitter/digital display
i
The transmitters and digital displays used must have their own certification in accordance
with IEC/EN. The installation conditions and electrical connection values can be seen from
the relevant approvals and must be observed.

5.2.3 Electrical data with built-in transmitter in accordance with the FISCO model

The transmitters/digital displays used for the application range in accordance with the
FISCO model are considered FISCO field instruments. The requirements in accordance
with IEC/EN 60079-27, and the connection conditions of the approvals in accordance with
FISCO, apply.

5.3 Tightening torques

5.3.1 Tightening torques between cable gland and connection head

Junction between cable gland and connection head
■
Thread
M20 x 1.5
Junction between cable and cable gland
■
Screw the pressure screw tightly into the adapter piece (use appropriate tools!)

5.3.2 Tightening torques between connection head and neck tube

Thread
M24 x 1.5 with pressure screw
18
Tightening torques
12 Nm
Tightening torques
Connection head material
Aluminium
27 Nm
WIKA operating instructions model TR25 (Ex i)
Stainless steel
30 Nm