Richards Thermocouple and Temperature Sensor Catalog 16

173 / 204

Analog Panel Meter, Rectangular
Part Number Range Type External
Resistance
Accuracy Dimensions
M10-K
0 to 2500°F
or
-20 to 1370°C
K 10 Ohm
± 1%
or
25°F
Diameter -
4.50” or 114.3 mm
Depth -
1.50” or 38.1 mm
M10-J
0 to 1000°F
or
-20 to 540°C
J 10 Ohm
± 1%
or
10°F
M11-J
0 to 500°F
or
-20 to 260°C
J 10 Ohm
± 1%
or
5°F
2
M10 & M11
Analog Panel Meter, Round Portable Type -
Part Number Range Type External
Resistance
Accuracy Dimensions
M1
0 to 2500°F
or
0 to 1370°C
K 1 Ohm
± 2%
or
50°F
Diameter -
4.50” or 114.3 mm
Depth -
1.50” or 38.1 mm
1
M1
Richards Analog Panel Meters are available for both Type K and Type J thermocouples. It is important to note
that the M10-K, M10-J , and the M11-J, have an external resistance requirement of 10 Ohms. In order to main-
tain the accuracy of the readings, the total resistance of the thermocouple and the extension wires combined must
be equal to 10 Ohms. The M1 unit has an 1 Ohm external resistance requirement. This requires that the total re-
sistance of the thermocouple and the extension wires combined must be equal to 1 Ohm.
The M1 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.
! Note: Resistance values for thermocouple and extension wires can be found in the engineering section of this catalog.
Switches, Gold Fuses, Instruments - Analog, Round Portable or Square Panel
Manufacturing, Engineering and Sales Since 1938
Phone: 617.527.4385 Fax: 617.964.3746 Email:
SW-GF
M1-M10
Page 173 Visit our website at