RMG TERZ 94, Руководство по эксплуатации

Страница: 15 / 66

Installation
Operating Instructions for the TERZ 94 Electronic Turbine Meter
13
Electrical connections
The LF and HF volume pulses and the current output in non-Ex devices are
led out of the meter head by a 7-pin connector (Binder). All other connections
have to be made at the terminals on the board.
Standard connection TERZ 94 (Ex and non-Ex devices) and
TERZ 94-S (Ex devices):
Standard connection TERZ 94-S (non-Ex devices):
In areas subject to explosion hazards, the TERZ 94 must only be
connected to certified intrinsically safe circuits.
Make sure that the limiting values from the conformity certificate
(see appendix) for the devices, which have to be connected, are
not exceeded.
If one or more electric circuits are used, it is to ensure that with the cable
selection the permissible limiting values according to the EEC design
inspection certificate are not exceeded. Each ex signal circuit has to be wired
in its own cable, which is to be led through the appropriate cable gland. A
fixed installation of the intrinsically safe cables is mandatory. The connecting
cables have to be provided with core-end sleeves.
1
2
3 4
5
PE (Abschirmung)
6
1 - / 4 + LF signal
2 - / 5 + not connected
3 - / 6 + HF signal
PE (Screening)
1
2
3 4
5
PE (Abschirmung)
6
1 - / 4 + LF signal
2 - / 5 + Current output 4 to 20 mA
3 - / 6 + HF signal
PE (Screening)