Simpson 270 Series - Page 20

Introduction
AMP-CLAMP MODEL 150-2
The Simpson Amp-Clamp Model 150-2 allows AC current meas-
urements without breaking the circuit under test. The Amp-Clamp
works in effect as a transformer containing a split core for accom-
modating the conductor which carries the current being measured.
The
current
carrying
conductor
becomes
the
transformer
primary
and
a
coil
in
the
Amp-Clamp
serves
as
the
secondary
winding.
The
Amp-Clamp
output
voltage
is
proportional
to
the
current
measured
and
can
be
applied
to
the
270-5
as
an
AC
voltage.
The
Amp-Clamp
has
a
range
selector
with
6
positions.
Any
of
the
following
current
ranges
can
be
used
with
the
270-5:
5,
10,
25,
50,
100
or
250
amperes.
NOTE: Instructions are furnished with each Amp-Clamp.