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Ring Thermocouple Type K

Ring Thermocouple Type K
Details:
1. Compact and integrated, highly flexible: The structure is extremely compact, typically with one end of the thermocouple wire directly welded to form the temperature sensing point and fixed on an O-type terminal, while the other end serves as a lead wire. This design makes it ideal for installation in confined spaces
2. Unique mechanical fixing: The O-type terminal design allows for direct fastening to the measured surface using bolts, screws, or clips, ensuring secure and easy installation, suitable for flat or curved objects
3. Specialized for surface temperature measurement: Primarily designed for measuring the surface temperature of solid objects. When in close contact, it provides a fast thermal response, especially suitable for metal surfaces with good thermal conductivity
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Description
Technical Parameters
Size & Wiring

A K-type thermocouple is a device for measuring temperature that consists of two wires made of different materials. When these two wires are joined together, they form an electrical connection. If the temperature changes at this junction, it generates a voltage that can be interpreted as temperature. This is often called the "Seebeck effect."

 

Characteristics of ring thermocouple type k

 

Thermocouple is one of the most commonly used temperature detection components in industry. It must be equipped with a secondary instrument, and its advantages are:

① High measurement accuracy. Because thermocouples can directly contact the tested object, they are not affected by the intermediate medium.

② Wide measurement range. Common thermocouples can measure continuously from 0 to +200 ℃, while some special thermocouples can measure temperatures as low as -269 ℃ (such as gold iron nickel chromium) and up to+2800 ℃ (such as tungsten rhenium).

③ Simple construction and convenient use. Thermocouples are usually composed of two different types of metal wires, and are not limited by size or beginning. They have a protective sleeve on the outside, making them very convenient to use.

 

temp K sensor 6
temp K sensor 5

 

The methods to test the quality of ring thermocouple type k

 

1. Observe with the naked eye whether the protective tube is corroded and penetrated, whether it is leaking, etc.

2. Use a multimeter to measure the continuity. The resistance of the assembled thermocouple is generally not greater than 2 ohms, and the resistance of the stainless steel braided wire type is generally not greater than 50 ohms. Generally, if it is greater than 1K, it can be determined to be broken.

3. Use a multimeter to measure the resistance value. Resistors exceeding 100K are bad.

4. Use the multimeter ohm measurement method to measure, adjust the resistance, connect both ends, and use a lighter to slightly burn it. If the multimeter pointer obviously becomes larger or smaller, it means it is good. If the pointer does not move, it means it is broken.

5. Use a multimeter to measure the voltage at both ends. If there is no voltage, it is broken

 

FAQ

 

Q: Do you support custom cable length and thread specifications on Ring Thermocouple Type K? If yes, what are the minimum order quantity and lead time for such customizations?

 

A: Yes, we offer full customization on:

Cable length – Any length can be produced according to your exact distance requirements to the temperature controller or data acquisition system.

 

MOQ (Minimum Order Quantity) & Lead Time:

Product Type MOQ Lead Time
Standard items (stock models) No MOQ (1 unit acceptable) 3–5 business days (in stock)
Simple customizations (length/thread changes) To be discussed based on specifications 7–15 business days
Complex customizations (special materials/unique designs) Depends on product specifications 15–40 business days
Reference: General industry standards for custom thermocouple lead times and MOQ policies.

 

How to Proceed:

To initiate a custom order, please provide the following information:

Required cable length (including any special jacket material requirements, e.g., silicone, fiberglass, PTFE)

Terminal size (refer to selection table above or specify your mounting screw diameter)

Thread specification (NPT or metric; indicate exact thread size)

 

Estimated quantity:

Any additional application details (temperature range, environmental conditions)

Once we receive your specifications, our sales team will confirm the exact MOQ and lead time for your custom requirements. For standard items, we can typically ship within 3–5 business days. For urgent custom orders, we can discuss expedited options.

Should you have any further questions or require a formal quotation, please do not hesitate to contact our sales team with your detailed specifications.

 

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K-type thermocouple specifications
 

 

Model Products Name Wire material Line skin Wire diameter
(MM)		 Wire core specifications length
(MM)		 Graduation mark Actual application temperature
(℃)		 thermal conductor Thermal conductor material Thermal conductor size
(MM)		 Nut material Thread Nut size Connection terminal Connection terminal size
(MM)		 Spring material Spring size
(outer diameter * length MM)		 Insulated/non-insulated
TS-D4-05 Terminal type K-type thermocouple KX nickel chromium nickel silicon stainless steel braided 2*3 7*0.2 500 K 0-250 RNB round terminal Tinned copper 17.7*8.0/4.3*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TS-D4-10 Terminal type K-type thermocouple KX nickel chromium nickel silicon stainless steel braided 2*3 7*0.2 1000 K 0-250 RNB round terminal Tinned copper 17.7*8.0/4.3*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TS-D4-15 Terminal type K-type thermocouple KX nickel chromium nickel silicon stainless steel braided 2*3 7*0.2 1500 K 0-250 RNB round terminal Tinned copper 17.7*8.0/4.3*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TS-D4-20 Terminal type K-type thermocouple KX nickel chromium nickel silicon stainless steel braided 2*3 7*0.2 2000 K 0-250 RNB round terminal Tinned copper 17.7*8.0/4.3*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TS-D6-05 Terminal type K-type thermocouple KX nickel chromium nickel silicon stainless steelbraided 2*3 7*0.2 500 K 0-250 RNB round terminal Tinned copper 21.4*12.0/6.5*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TS-D6-10 Terminal type K-type thermocouple KX nickel chromium nickel silicon stainless steel braided 2*3 7*0.2 1000 K 0-250 RNB round terminal Tinned copper 21.4*12.0/6.5*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TS-D6-15 Terminal type K-type thermocouple KX nickel chromium nickel silicon stainless steel braided 2*3 7*0.2 1500 K 0-250 RNB round terminal Tinned copper 21.4*12.0/6.5*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TS-D6-20 Terminal type K-type thermocouple KX nickel chromium nickel silicon stainless steel braided 2*3 7*0.2 2000 K 0-250 RNB round terminal Tinned copper 21.4*12.0/6.5*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TR-D4-05 Terminal type K-type thermocouple KX nickel chromium nickel silicon Silica gel 3 7*0.2 500 K 0-200 RNB round terminal Tinned copper 17.7*8.0/4.3*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TR-D4-10 Terminal type K-type thermocouple KX nickel chromium nickel silicon Silica gel 3 7*0.2 1000 K 0-200 RNB round terminal Tinned copper 17.7*8.0/4.3*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TR-D4-15 Terminal type K-type thermocouple KX nickel chromium nickel silicon Silica gel 3 7*0.2 1500 K 0-200 RNB round terminal Tinned copper 17.7*8.0/4.3*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TR-D4-20 Terminal type K-type thermocouple KX nickel chromium nickel silicon Silica gel 3 7*0.2 2000 K 0-200 RNB round terminal Tinned copper 17.7*8.0/4.3*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TR-D6-05 Terminal type K-type thermocouple KX nickel chromium nickel silicon Silica gel 3 7*0.2 500 K 0-200 RNB round terminal Tinned copper 21.4*12.0/6.5*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TR-D6-10 Terminal type K-type thermocouple KX nickel chromium nickel silicon Silica gel 3 7*0.2 1000 K 0-200 RNB round terminal Tinned copper 21.4*12.0/6.5*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TR-D6-15 Terminal type K-type thermocouple KX nickel chromium nickel silicon Silica gel 3 7*0.2 1500 K 0-200 RNB round terminal Tinned copper 21.4*12.0/6.5*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated
TR-D6-20 Terminal type K-type thermocouple KX nickel chromium nickel silicon Silica gel 3 7*0.2 2000 K 0-200 RNB round terminal Tinned copper 21.4*12.0/6.5*1.0       Red and blue SV fork 20*6.5/4.3*0.5 spring steel 6*50 non-insulated

 

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