Page
13
©
2008
Gastech
Australia
Pty
Ltd
A
second
barrier
that
can
be
used
is
the
GasTech
57
‐
9010
‐
01
(MTL
7787+).
This
barrier
must
only
be
used
in
conjunction
with
the
GasTech
4100R
controller
card,
as
the
4100R
card
has
100
Ω
load.
WARNING:
If
you
use
this
barrier
on
another
controller
that
uses
a
load
above
100Ohms
the
D
‐
Guard
will
turn
off
when
it
see
a
high
gas
reading
(>15mA)
as
the
volt
drop
over
this
barrier
is
greater.
Wiring
of
the
GasTech
57
‐
9010
‐
01
barrier
is
as
follows:
Содержание D-Guard
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