Product Overview
Iron-Constantan Temperature Sensor in a Screw-Cap Terminal Head, With Compression Fitting and Ceramic Terminal Block
Condition
Unused new old stock, sold as the probe with its connection head. Cap markings legible: THERMOMETRICS, Precision Temperature Sensors, Northridge, CA.
Ready to ship from our Idaho warehouse the same or next business day. Selling online since 1999.
Product Overview
A Type J thermocouple joins an iron leg to a constantan leg, and this one runs up its sheath into a screw-cap connection head. Inside the head, the two leads land on a ceramic terminal block with screw terminals. A compression fitting rides on the sheath, and a threaded entry with a hex fitting on the side of the head takes field wiring. The pictured unit is representative.
Key Features
- Type J (iron-constantan) thermocouple
- Connection head with screw-on cap held by a bead chain and a black seal ring
- Ceramic terminal block with screw terminals inside the head
- Compression fitting on the sheath
- Threaded wiring entry with hex fitting on the head
- Thermometrics, Northridge, CA decal on the cap
Applications
- Replacing a failed Type J head-mount sensor on a plastics extruder or oven zone already wired for J
- Keeping a spare for a controller input set to Type J
Frequently Asked Questions
What input does it need on my controller?
A Type J input. On a Type K setting the same junction reads the wrong temperature.
Is a transmitter fitted in the head?
No. The head holds a ceramic terminal block with screw terminals.
Can I tell this Type J apart from a Type K probe with the cap off?
Yes. The leads on the terminal block are white and red, the ANSI Type J colors with red negative; a Type K pair is yellow and red. Flat-rate shipping in the lower 48, and orders over the free-shipping line ship free.
The cap names a Northridge sensor shop and nothing about the junction inside. Lift it, and the white and red leads say Type J; match them to a J input.
