Overview
Probe
- Type J or K thermocouple elements for various temperature sensing applications.
- 1/4" diameter, 316 SS or Inconel Alloy 600 sealed sheath for protection against harsh environments.
- Magnesium Oxide (MgO) insulation provides vibration dampening and protection against thermal shock.
- Bendable to adapt to installation requirements.
- Available probe lengths: 6", 12", or 18".
Connection Head
- Cast aluminum NEMA 4X, IP66 screw cover head with a captive gasket.
- One-turn cover removal and installation mechanism to prevent cross-threading and save time.
- 3/4" NPT conduit opening with an internal stop to prevent overtightening and installation damage.
- Gripping ribs on the cover edge.
- Stainless steel cover chain.
Wiring
- Ceramic terminal base.
- Brass terminals with stainless steel screws eliminate the need to wrap connections around screws.
- Elevated terminal block for easy wire termination.
Made in the USA.
Thermocouple Probes with Connection Head - Types J and K
| Part Number | Pcs/Pkg | Wt (lb) | Price | Type | Probe Diameter (O.D.) | Probe Length | Probe Material | Temperature Sensing Range | Mounting |
|---|---|---|---|---|---|---|---|---|---|
| THMJ-C06-01 | 1 | $72.00 | J | 6" | 316 stainless steel | 0 to 720°C (32 to 1330°F) | Integral 1/2" x 1/2" NPT Hex Nipple, 316 SS | ||
| THMJ-C12-01 | 1 | $77.00 | J | 12" | |||||
| THMJ-C18-01 | 1 | $80.00 | J | 18" | |||||
| THMK-C06-01 | 1 | $72.00 | K | 6" | 316 stainless steel | 0 to 927°C (32 to 1700°F) | Integral 1/2" x 1/2" NPT Hex Nipple, 316 SS | ||
| THMK-C12-01 | 1 | $77.00 | K | 12" | |||||
| THMK-C18-01 | 1 | $80.00 | K | 18" | |||||
| THMJ-C06-02 | 1.3 | $69.00 | J | 1/4" | 6" | 316 stainless steel | 0 to 720°C (32 to 1330°F) | ProSense compression fitting (see accessories - purchased separately) | |
| THMJ-C12-02 | $70.00 | J | 12" | ||||||
| THMJ-C18-02 | $71.00 | J | 18" | ||||||
| THMK-C06-02 | $69.00 | K | 6" | 316 stainless steel | 0 to 927°C (32 to 1700°F) | ProSense compression fitting (see accessories - purchased separately) | |||
| THMK-C12-02 | $70.00 | K | 12" | ||||||
| THMK-C18-02 | $71.00 | K | 18" | ||||||
| THMK-C06-04 | 1 | $75.00 | K | 6" | Inconel Alloy 600 | 0 to 1149°C (32 to 2100°F) | Integral 1/2" x 1/2" NPT Hex Nipple, 316 SS | ||
| THMK-C12-04 | 1 | $85.00 | K | 12" | |||||
| THMK-C18-04 | 1 | $93.00 | K | 18" |
Technical Specifications
| Junction Type | Ungrounded |
|---|---|
| ASTM E230 Standard Limits of Error | ±2.2°C (±4.0°F) or 0.75%, whichever is greater |
| Probe | 4", 316 stainless steel or Inconel Alloy 600 sheath, single thermocouple element embedded in MgO powder |
| Probe Minimum Bend Radius | 2 x sheath diameter |
| Minimum Installation Depth | 3" (76 mm) |
| Connection Head | Die-cast aluminum, screw cover with stainless steel chain, compressed graphite gasket, NEMA 4X, IP66, 3/4" NPT conduit opening, max temp. 400°F (204°C) |
| Response Time | 2.9 seconds, 63.2% of a 25-77°C step change per method ASTM E839 |
| Wiring | Ceramic terminal base with brass terminals and stainless steel screws (Recommended tightening torque 3-4 lb-in) |
Note: Check the chemical compatibility of the sensor's wetted parts with the medium to be measured. Not designed for use in a thermowell. Use spring-loaded probe when installing in a thermowell.
Dimensions
Dimensions are in inches [mm].
THMJ & K - CXX-01 & 04
Diagram Description: This diagram illustrates a thermocouple probe with a connection head. It features a 0.25" [6.4] diameter probe with a 1/2" x 1/2" NPT Hex Nipple. The connection head has a 3/4" NPT conduit opening. The diagram indicates dimensions labeled "DIM 'A'" and "DIM 'B'".
| PART NUMBER | DIM "A" | DIM "B" |
|---|---|---|
| THMJ-C06-01 | 6.00[152.4] | 11.33[287.8] |
| THMJ-C12-01 | 12.00[304.8] | 17.33[440.2] |
| THMJ-C18-01 | 18.00[457.2] | 23.33[592.6] |
| THMK-C06-01 | 6.00[152.4] | 11.33[287.8] |
| THMK-C12-01 | 12.00[304.8] | 17.33[440.2] |
| THMK-C18-01 | 18.00[457.2] | 23.33[592.6] |
| THMK-C06-04 | 6.00[152.4] | 11.33[287.8] |
| THMK-C12-04 | 12.00[304.8] | 17.33[440.2] |
| THMK-C18-04 | 18.00[457.2] | 23.33[592.6] |
The connection head height is approximately 3.75" [95.2].
THMJ & K - CXX-02
Diagram Description: This diagram shows a thermocouple probe with a connection head, featuring a 0.25" [6.4] diameter probe and a 3/4" NPT conduit opening. The connection head also has a 1/2" NPT connection. Dimensions are labeled "DIM 'A'" and "DIM 'B'".
| PART NUMBER | DIM "A" | DIM "B" |
|---|---|---|
| THMJ-C06-02 | 6.00[152.4] | 10.64[270.3] |
| THMJ-C12-02 | 12.00[304.8] | 16.64[422.7] |
| THMJ-C18-02 | 18.00[457.2] | 22.64[575.1] |
| THMK-C06-02 | 6.00[152.4] | 10.64[270.3] |
| THMK-C12-02 | 12.00[304.8] | 16.64[422.7] |
| THMK-C18-02 | 18.00[457.2] | 22.64[575.1] |
The connection head height is approximately 3.75" [95.2].
Note: THMJ & K - CXX-02 probes use ProSense Compression Fittings for mounting.
Wiring Information
Wiring Color Codes:
- Type J: (+) white, (-) red
- Type K: (+) yellow, (-) red
Important Notes:
- Must use thermocouple extension lead wire.
- Observe polarity when making connections.
- Do not use standard wire nuts.
- Recommended screw terminal tightening torque: 3-4 lb-in.
Diagram Description: The wiring diagram shows terminal connections. For Type J, the positive terminal is white and the negative is red. For Type K, the positive terminal is yellow and the negative is red. The diagram visually represents these connections.
Accessories
| Part No. | Description | Pcs/Pkg | Price |
|---|---|---|---|
| BCF14-125N | Compression fitting, brass, for 1/4 inch diameter temperature probes, 1/8 inch male thread | 1 | $3.25 |
| BCF14-25N | Compression fitting, brass, for 1/4 inch diameter temperature probes, 1/4 inch male thread | 1 | $4.25 |
| BCF14-50N | Compression fitting, brass, for 1/4 inch diameter temperature probes, 1/2 inch male thread | 1 | $6.50 |
| CF14-125N | Compression fitting, 316 stainless steel, for 1/4 inch diameter temperature probes, 1/8 inch male thread | 1 | $8.00 |
| CF14-25N | Compression fitting, 316 stainless steel, for 1/4 inch diameter temperature probes, 1/4 inch male thread | 1 | $9.25 |
| CF14-50N | Compression fitting, 316 stainless steel, for 1/4 inch diameter temperature probes, 1/2 inch male thread | 1 | $14.00 |
| CFTF-14 | Teflon ferrule for brass or stainless steel compression fittings and 1/4 inch diameter temperature probes | 5 | $7.75 |
Note: A full listing of accessories is available. Thermocouple extension lead wire is available at www.automationdirect.com.
