Type S Platinum-Rhodium Ceramic Thermocouple and Type K Ceramic Thermocouple

The S-type ceramic thermocouple is a precious metal thermocouple, also known as the single platinum-rhodium thermocouple. The positive pole (SP) is a platinum-rhodium alloy containing 10% rhodium and 90% platinum, and the negative pole (SN) is pure platinum. Its wire diameter is usually 0.5 mm, with an allowable deviation of -0.015 mm. The maximum long-term service temperature is 1300 °C, and the maximum short-term service temperature is 1600 °C. It has the advantages of the highest accuracy, the best stability, a wide temperature measurement range, and a long service life in the thermocouple series. It is suitable for oxidizing and inert atmospheres.

The K-type ceramic thermocouple is one of the most widely used temperature sensors. It consists of a positive leg made of nickel-chromium alloy and a negative leg made of nickel-silicon alloy. The temperature measurement range is generally from -200 °C to 1260 °C. It has the characteristics of high sensitivity and fast response time, which can quickly and accurately measure temperature changes. The ceramic materials used in K-type ceramic thermocouples provide excellent thermal insulation, electrical isolation, and are highly durable, resistant to thermal shock, chemical corrosion, and mechanical wear, making them suitable for harsh environments and industrial applications.

Core Parameters of Type S Ceramic (Single Platinum-Rhodium) Thermocouple

II. Core Parameters of Type K Ceramic Thermocouple

Thermocouple Extension/Compensating Wires and Cables (General Specifications)

Compatible Types: Supports Type K, E, J, T, N, and other thermocouple types

Insulation Material: Glass fiber, Polyvinyl Chloride (PVC), Polytetrafluoroethylene (Teflon), Asbestos, etc.

Structural Specifications: Single-core / Multi-core (2-core, 3-core, 4-core, 6-core); Stainless steel braided protective version available

Installation and Fixing Parts

Explosion-proof Installation: Compatible with WRa24b/44b-B model; protection tube diameter options: 6~25mm

General Installation: Supports threaded, flange, and other fixing methods (Based on general configurations of the same brand's similar products)

Certification-related Specifications (Product Compliance Parameters)

1. Explosion-proof Certification Specifications

Explosion-proof Mark: Ex db IICT1~T6 Gb

Executive Standards: GB/T 26786-2011, GB/T 3836.1-2021, GB/T 3836.2-2021

Drawing Numbers: Explosion-proof thermocouple 1.144.111~514; Explosion-proof thermal resistor 1.184.111~114

Certificate Validity Period: June 30, 2023 to June 29, 2028

2. Functional Safety (SIL) Certification Specifications

Certification Level: SIL 2 (System Integrity: SIL 2 Capability; Random Integrity: Type B Element; Hardware Fault Tolerance: HFT=0)

Applicable Models: WR□, WZ□, WB□ series temperature sensors (including transmitters)

Executive Standard: IEC 61508:2010 (Parts 1-7)

3. Electromagnetic Compatibility (EMC) and Low Voltage Directive (LVD) Certification Specifications

Executive Standards: 2014/35/EU Low Voltage Directive, 2014/30/EU Electromagnetic Compatibility Directive; EN 61000-6-3:2007+A1:2011, EN 61000-3-2:2014, etc.

Covered Models: WRKIOX, WRKOX, WRNIOX, WRSOX, WRBKX, and other full-series temperature sensors

Application Scenarios

Type S Ceramic (Single Platinum-Rhodium) Precious Metal Thermocouple

Precision Metallurgy

High-end Ceramics

Glass Manufacturing

Scientific Research Experiments

Aerospace Equipment

Military Manufacturing

Type K Ceramic Thermocouple

Automobile Manufacturing

Chemical Industry and Energy

Machinery Processing

Industrial Furnaces

Automation Equipment

Frequently Asked Questions (FAQ)

Q1: Do you accept sample orders?

A: Yes, we welcome sample orders for quality testing and verification.

Q2: What is the delivery lead time?

A: Sample production takes 3-5 days; bulk production takes 1-2 weeks depending on the order quantity.

Q3: Is there a Minimum Order Quantity (MOQ) requirement?

A: The MOQ requirement is low; we support 1-piece sample orders for quality inspection.

Q4: What are the shipping methods and delivery time?

A: Regular shipping methods include DHL, UPS, FedEx, or TNT, with a typical delivery time of 3-5 days; air freight or sea freight is also available.

Q5: Can you print the brand logo?

A: Yes. Please inform us formally before production and confirm the design plan based on samples first.

Q6: Do you provide a product warranty?

A: Yes, we offer a 1-year warranty for our products.

Packaging and Labeling

Packaging Type: Shockproof packaging (Marked with "Fragile", "Handle with Care - Do Not Crush or Drop")

Manual Welding

Automatic Welding

Insulation Testing

Laser Marking

Warehouse Managing

Thermocouple Assemble

Vacuum Leak Detection

Surface Polishing

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