ULTRATWIN (UL)
INSTRUCTION MANUAL
26
Transducer
The transducer should be installed, and connected, in accordance with the
installation instructions contained in the Transducer User Guide.
The entire range of standard dB transducers are certified for use in
hazardous areas and different models, for each, are available for use in Zone
1 or Zone 0.
Wire the transducer to the UltraTWIN
’s
transducer terminals, terminal
numbers will depend on the unit type, as follows:
Transducer 1
TERMINAL CONNECTION DETAILS
Unit Type
Red:
Power
White:
Signal
Black:
0Volts
Green:
Screen
Wall Mount
45
46
47
47
Fascia Mount
32
31
30
30
Transducer 2
TERMINAL CONNECTION DETAILS
Unit Type
Red:
Power
White:
Signal
Black:
0Volts
Green:
Screen
Wall Mount
48
49
50
50
Fascia Mount
35
34
33
33
When using 2-core screened extension cable, the Black and Green wires of
the transducer should be connected to the screen of the extension cable,
which in turn should be connected to the appropriate 0 volts terminal of the
UltraTWIN.
ATEX
For
EEx m
(
Zone 1)
applications a transducer certified to
Sira
02ATEX5104X
is used, and must be supplied via a 4000A breaking fuse,
which is fitted as standard to the UltraTWIN level controller.
For
EEx ia
(
Zone 0)
a transducer certified to
Sira 02ATEX2103X
is
used,
which must be connected to the UltraTWIN via an external Zener barrier.
