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Thermocouple Probes have a maximum service temperature of 1300°F (700°C) depending on the type and gauge of the
thermocouple wire used in their construction. The elements are made with impregnated fiberglass wire. The 30 gauge 1/16” O.D.
probes have a high temperature limit of 400°F (200°C) due to Kapton insulation on the element. A grounded junction is standard to
help prevent the element from pulling out of the tube and to provide a rapid temperature response time.
!
Note:
If you would like to order a Type E, J, N, or Type T assembly, just substitute the “
K
“ with a “
E
“, “
J
“, “
N
“, or “
T
” in the part numbers
listed on this page. Double element assemblies are also available. Add a ”
D
” to the part number.
Example: 20K4DM-9M4-48-SH.
Probes can also be made with Types: B, R, and S, phone for details. Also, sheaths can be made of other materials and sizes - see page on
“Miniature Tubes”
Application
Wire
Gauge
Outside Diameter
Inches mm
Type K
1
Probe, Plain
Standard plain probe. Specify : “X” overall length, and “Y” probe sheath length.
16
20
20
24
30
1/4
1/4
3/16
1/8
1/16
6.4
6.4
4.8
3.3
1.6
16K4P-G-9M4-X-Y
20K4P-G-9M4-X-Y
20K4P-G-9M3-X-Y
24K4P-G-9M2-X-Y
30K4P-G-9M1-X-Y
2
Probe, Overbraided OB8 = 304SS OB9 = Alloy 9 (600)
The overbraid is on the exposed insulated wire portion of the probe - from the
sheath to the cold end. It is used to protect the insulation from abrasion and to
help shield against electrical pick up.
16
20
20
24
30
1/4
1/4
3/16
1/8
1/16
6.4
6.4
4.8
3.3
1.6
16K4P-G-9M4-X-Y-OB8
20K4P-G-9M4-X-Y-OB8
20K4P-G-9M3-X-Y-OB8
24K4P-G-9M2-X-Y-OB8
30K4P-G-9M1-X-Y-OB8
3
Probe, Compression Fitting
A Compression Fitting (
CF
) is added to the assembly. A 1/8” NPT stainless
steel compression fitting for sheaths with outside diameters of 1/16” to 3/16”;
1/4” NPT for 1/4” sheaths. Special sizes are available - under Accessories,
Compression Fittings
.
16
20
20
24
30
1/4
1/4
3/16
1/8
1/16
6.4
6.4
4.8
3.3
1.6
16K4P-G-9M4-X-Y-CF
20K4P-G-9M4-X-Y-CF
20K4P-G-9M3-X-Y-CF
24K4P-G-9M2-X-Y-CF
30K4P-G-9M1-X-Y-CF
4
Probe, Flexible Extension
Flexible extensions (
FE
) are made with Armored Cable (
AC
).
The ”
Z
” dimension may or may not completely cover the normally exposed
insulated wire depending on what length you specify. The Compression Fitting
is optional, if desired add “
CF
” to the part number.
16
20
20
24
30
1/4
1/4
3/16
1/8
1/16
6.4
6.4
4.8
3.3
1.6
16K4P-G-9M4-X-Y-FEZ
20K4P-G-9M4-X-Y-FEZ
20K4P-G-9M3-X-Y-FEZ
24K4P-G-9M2-X-Y-FEZ
30K4P-G-9M1-X-Y-FEZ
5
Probe, Angle
90 degree and 45 degree angel are standard, but other angels can be ordered.
The part numbers shown are for 45 degree probes. For 90 degree, change the
“45” to “90” in the part number. For the optional Relief Spring (
SR
) add “
SR
” to
the end of the part number
.
The Compression Fitting is optional, if desired add
“
CF
” to the part number.
16
20
20
24
30
1/4
1/4
3/16
1/8
1/16
6.4
6.4
4.8
3.3
1.6
16K45P-G-9M4-X-H-C
20K45P-G-9M4-X-H-C
20K45P-G-9M3-X-H-C
24K45P-G-9M2-X-H-C
30K45P-G-9M1-X-H-C
6
Probe, Angle, Flexible Extension
90 degree and 45 degree angel are standard, but other angels can be ordered.
The part numbers shown are for 90 degree probes. For 45 degree, change the
“90” to “45” in the part number. The Compression Fitting is optional, if desired
add “
CF
” to the part number. Spade Lugs (
LS
) also available (at added cost).
16
20
20
24
30
1/4
1/4
3/16
1/8
1/16
6.4
6.4
4.8
3.3
1.6
16K90P-G-9M4-X-H-C-FEZ
20K90P-G-9M4-X-H-C-FEZ
20K90P-G-9M3-X-H-C-FEZ
24K90P-G-9M2-X-H-C-FEZ
30K90P-G-9M1-X-H-C-FEZ
#9 Alloy (600) is standard, but other alloys such as: #7 (446SS), #8 (304SS), *16 (316SS), Hastelloy C etc. are also
available. See listings under “Miniature Metal Protection Tubes. Just replace the “9” in the part number with the desired alloy.
Thermocouples - Probes without Connectors or Heads
Page 38
Phone: 617.527.4385 Fax: 617.964.3746 Email:
sales@asrichards.com