DURAG D-R 290, Руководство по эксплуатации

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5 | Installation
D-R 290 97
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With the D‑ISC 100 control unit at field node level and the power supply of the
D‑R 290 provided by a D‑TB 100 ( Fig. 5.30 ). In this configuration the control unit
can be up to 1000 m from the device and also be used for operating other DURAG
Bus devices.
Fig. 5.30: Supplying the D−R 290 via a D-TB 100 and connection of a D‑ISC 100 via DURAG Bus
Installation of the supply unit
The power supply of the D−R 290 measuring system is provided by a D−TB 100 sup­
ply unit.
A blower is also required for the purge air.
Installation of the D-TB 100 supply unit
The D-TB 100 supply unit is installed close to the measuring point (ensure the pre-in­
stalled connection cable reaches it; see delivery note). The dimensional drawing for
the D-TB 100 supply unit, showing the positions of the attachment holes can be found
on page 9.3.6 Dimensional diagram supply unit (terminal box) D-TB 100 [
}
187] in
Fig. 9.11 .
5.7
5.7.1