3 ELECTRICAL CONNECTIONS
Manual ERZ2000-DI · EN1.2 · 2017, December 21st
78
ERZ2004/2104-DI; X 9 and X 10 are optionally assigned
X 9
Terminal 1 Ex-option enco + (Vo)
Terminal 2 Ex-option enco - (Vo)
Terminal 3 Ex-option Vm measuring channel (HFX) +
Terminal 4 Ex-option Vm measuring channel (HFX) -
Terminal 5 Ex-option Vm comparison channel (HFY) +
Terminal 6 Ex-option Vm comparison channel (HFX) -
Terminal 7 Ex-option pressure measurement - transmitter (opt. HART)
Terminal 8 Ex-option pressure measu transmitter (opt. HART)
Terminal 9 Ex-option temp. - transmitter (opt. HART) for PT 100 s. X 10
Terminal 10 Ex-option temp. + transmitter (opt. HART) for PT 100 s. X 10
X 10
Terminal 1 reserve / free
Terminal 2 reserve / free
Terminal 3 reserve / free
Terminal 4 reserve / free
Terminal 5 reserve / free
Terminal 6 reserve / free
Terminal 7 Ex-option PT 100 +
Terminal 8 Ex-option PT 100 sense +
Terminal 9 Ex-option PT 100 sense -
Terminal 10 Ex-option PT 100 supply - -
Note
With use of the internal Ex isolation stage:
A mixture of inputs is possible with respect to Ex protection, which means
an individual signal can also be used with an external isolation stage or
with a pressure-proof encapsulated ignition protection type, in combina-
tion with Ex intrinsically safe protection type.
Example:
The volume inputs for measuring and comparison channels and the original ENCO
meter are operated on
X 9
via the internal Ex card, the pressure transducer is op-
erated as a 4..20 mA transmitter and the temperature probe is operated as PT 100
4-wire connection with pressure-proof encapsulation ignition pressure type and
connected to
X 5
.
Other possible mixtures are feasible.
The number of connection possibilities increases if the optional Ex input card is
used. This input card enables galvanic isolation of MSR signals, such as 20 mA
Содержание ERZ2000-DI Series
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Страница 81: ...3 ELECTRICAL CONNECTIONS Manual ERZ2000 DI EN1 2 2017 December 21st 75 Figure 61 Rear wall of the ERZ2000 DI ...
Страница 99: ...4 TRANSMITTERS Manual ERZ2000 DI EN1 2 2017 December 21st 93 Figure 69 Measuring path arrangement USM GT400 ...
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