162 / 192
lnstruments
-
Analog, Square
Panel Mount
of
RdUffi'P'dfta$ie
Richards
Analog
Panel
Mount
Meters
are
available
for
both
Type
K and Type J
thermocouples.
lt
is
important
to
note that
the
Ml0-K,
M1O-J,
and the
Ml1-J
meters
have
a external
resistance
of
10
Ohms. ln order to
maintain
the accuracy
of
the
readings,
the total
resistance of the
thermocouple and
extension
wires combined
must be equal
to
10
Ohms.
The
Ml
unit has
1
Ohm
external
resistance. This
requires the total resistance
of
the thermocouple and extension wires combined to be equal
to
1
Ohm.
The
Ml
meter
is normally used
in
our
portable molten metal handle assembly, but
they
may be used in situations
where
long extension
wires
are not
required. The
M10
and
M11
type
instruments
are usually
used in
situations where
longer extension
wires are
needed.
t
N96:
Resistance
values
for
thermocouple
and
extension
wire
can be
found
in
the
engineering
section
of
this catalog.
log
Panel
Meter
-
Sguale, Panel
Mount
n10
&n]l
t
1o/o
or
25"F
+
1"h
or
10'F
t
1o/o
or
5'F
Height
-
4.60" or
117mm
width
-
5.85" or
148.5mm
Mounting
-
4
Studs
#6-32NC-2
10 Ohms
10 Ohms
10 Ohms
0 to
2500'F
or
-20
to
1370"C
0
to 1000'F
or
-20 to 540"C
0
to
500"F
or
-20 to
260'C
Portable
Type
Analog
Panel
Meter
-
Round,
Panel
tount
Diameter
-
4.50" or
114.3mm
Depth
-
1
.50" or 38.1mm
0 to
2500"F
or
0
to
1370'C
Page
162