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10.11.2004
Zones 1 & 2; 21 & 22
I.S. Isolators
10512E00
mA - Isolating Repeater
Type 9164
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Intrinsically safe input (I.S.) or
increased safety protection
Ex e version
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Bi-directional HART
transmission 4 ... 20 mA
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Suitable for 4-wire transmitter
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1 channel
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Galvanic isolation between input
and output
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Installation possible in Zone 1,
Zone 2, Zone 21, Zone 22 and
Div. 2
Basic function: Analog signal transmission 4 ... 20 mA for 4-wire
transmitters with HART communication, 1 channel.
The mA - isolating repeaters are used for connection of 4-wire
transmitters to active 2-wire inputs as well as to galvanic isolation.
The 4-wire transmitters can optionally be equipped with an
intrinsically safe or increased safety protection output circuit.
The devices bidirectionally transfer a superimposed HART
communictaions signal.
10470E01