Description

The CT-329 uses a high-purity alumina ceramic sheath, possessing excellent heat resistance and insulation properties, making it an ideal material for high-temperature applications to resist thermal shock and oxidative corrosion. It comes standard with high-precision R, S, and K type thermocouples, capable of measuring up to 1600 °C (R/S type) or 1250 °C (K type), and uses heat- and corrosion-resistant materials to maintain accurate sensing even after prolonged exposure to high temperatures. Its design, incorporating a large round-head terminal box and fixing threads, ensures seamless installation and reliable connection, making it widely applicable in extreme operating environments such as metallurgical furnaces, ceramic kilns, heat treatment furnaces, and high-temperature reactors.

Specifications

Sensing Element

• Thermocouples: Types K, T, J, R, S, and B
• Platinum resistors: PT100, PT1000, PT500

Accuracy Class

• Class A, Class B, 1/10 DIN, 1/5 DIN, 1/3 DIN (select according to application)

Wiring Method

• Thermocouple: 2-wire
• PT100: 3-wire

Temperature Range (depending on the sensing element)

• Type K thermocouple: Approximately –50°C to +1200°C
• Type T thermocouple: Approximately –250°C to +350°C
• J-type thermocouple: approx. –40°C ~ +750°C
• R/S/B type thermocouple: approx. +600°C ~ +1600°C
• PT100: –200°C ~ +500°C (depending on package and wire material)

Probe Appearance and Dimensions

• Standard rod-shaped probe diameters: Φ3.2, Φ4.8, Φ5, Φ6.3 mm, Φ9.5 mm (custom sizes available)
• Probe length: can be specified as needed (e.g., 30mm, 50mm, 100mm and above)

Ceramic Tubes

• Φ17
  For other specifications or customized options, please contact us to discuss.

Threaded Threads

• We support 1/4″ PT and 1/2″ PT thread specifications.
  For other specifications or customized options, please contact us for discussion.

Installation

• Featuring a large round-head terminal box design, it provides robust connections and an easy-to-maintain interface.

Selection of Probe Material

Material	Description
304SS	Stainless steel for general industrial use, with excellent corrosion resistance.
316SS	High corrosion-resistant stainless steel, suitable for chemical or humid environments.
310SS	High-temperature stainless steel with excellent heat resistance.
P4	High-purity ferritic alloy, resistant to high temperatures and corrosion.
INCONEL	Ultra-high temperature nickel-based alloy, resistant to oxidation and acidic environments.
Hastelloy-C	High corrosion resistant nickel-chromium alloy, resistant to strong acid environments.
Hastelloy-B	High acid resistance nickel-chromium-molybdenum alloy, suitable for extremely acidic environments.

Application Examples

• Temperature monitoring of high-pressure vessels and piping.
• Temperature Management in Pressure Equipment and Industrial Systems.
• Key temperature sensing in high-pressure fluidization process.
• Fixed temperature measurement points under high pressure environment.
• Long-term stable installation of sensors in heavy industry or production areas.

Further Reading

• Sensing accuracy and error calculation method

  Resistance thermometer accuracy table and calculation formula

• Thermocouple accuracy and power meter

  Thermocouple accuracy and electric current

• Product Classification by Appearance

  Terminal box type temperature sensing rod introduction

  Introduction to wire-type temperature sensing rods

• Temperature calibration laboratory information

  CPT Temperature Calibration Center

Contact Information

For quotes, product selection advice, or technical assistance, please contact us through the following methods:

• Tel：07-3531378
• LINE@：@oneway3281
• Email：sales@oneway.com.tw