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RAT-QD
High Temp Thermocouples with Ceramic Tubes and Connectors
- NHX Standard Ceramic Connector Rated to 650°C (1200?°F)
- HSTW Standard Connector Liquid Crystal Polymer Rated to 260°C (500°F)
- Up to 1650°C (3000°F) Rating
- Oxidizing or Reducing Atmospheres
Product Overview
- Color Code Standard ANSI
- Connector Temperature, Min 0 °C
- Junction Type Ungrounded
- Probe Diameter 0.25 in
- Process Connection Size N/A
- Process Temperature, Max 1650 °C
- Process Temperature, Min 0 °C
- Series ID RAT-QD
- Sheath Material Ceramic
- Temperature Sensor Type Thermocouple
- Thermocouple Type N/A
Supported Applications
The Omega RAT-QD series comprises Quick Disconnect High-Temperature Platinum Thermocouple Assemblies featuring ceramic protection tubes. These probes are designed for temperature measurement in oxidizing or reducing atmospheres up to 1650°C (3000°F). The assemblies utilize Type R, S, or B platinum thermocouples enclosed within a high-purity alumina protection tube.
Operating Conditions & Performance
The series is rated for process temperatures up to 1650°C (3000°F). Elements are insulated by a double bore high purity hard-fired alumina insulator. The standard probe diameter is ¼" with a standard insertion length of 12" and an overall length of 12"; the support tube length for standard configurations is 4". NIST Traceable Calibration is available as an option.
Key Specifications
- Measurement Range: Up to 1650°C (3000°F)
- Sensor Types: Type R, S, or B Platinum Thermocouples
- Sheath Material: High-purity alumina
- Insulation: Double bore high purity hard-fired alumina insulator
- Atmosphere Compatibility: Oxidizing or Reducing Atmospheres
- Standard Dimensions: ¼" diameter, 12" insertion length (standard), 4" support tube length
Configuration Options
The RAT-QD series offers configurable options for wire size, probe length, connector type, and structural configuration to accommodate specific installation requirements.
Sensor Configurations
- Thermocouple Calibrations: Pt vs Pt 13% Rh (Type R), Pt vs Pt 10% Rh (Type S), and Pt 6% Rh vs Pt 30% Rh (Type B).
- Wire Sizes: Available in 24 AWG or 30 AWG.
Housing & Connection Options
- Connector Types: NHX Standard Ceramic Connector and HSTW Standard Connector Liquid Crystal Polymer. For standard ceramic connector models, replace "HSTW-M" in the model number with "NHX-M".
- Mating Accessories: Mating connectors (e.g., HSTW-R/S-F, NHX-R/S-f), cable clamps (PCLM, PCLM-NHX), and safety clips (SFCL, HTCL) are sold separately.
Structural Variants & Options
- Support Tube Assembly: Models with a stainless steel support tube include an optional compression fitting allowing field positioning setting of the immersion length. These models feature "ST4" in the model number (e.g., RAT-QD-ST4).
- Mounting Threads: Optional compression fittings are available with ¼ mounting thread (SSLK-38-14) or ¾ mounting thread (SSLK-38-38).
- Dual Element: Dual element configurations are offered.
- Customization: Custom probe lengths and custom support tube lengths are available. Wire Batch certificate reports can be added by appending the suffix "CERT" to the model number (consult sales for pricing).
Key Product Differences
The series distinguishes between standard ceramic protection tubes and assemblies with stainless steel support tubes.
- Standard Probes: Models such as RAT-QD-30-12-HSTW-M feature a high-purity aluminum (alumina) protection tube without an integral stainless steel support structure for field positioning. The standard insertion length is 12".
- Support Tube Assemblies: Models designated with "ST4" in the model number, such as RAT-QD-ST4-30-12-HSTW-M, include a stainless steel support tube and an optional compression fitting. This configuration allows for field positioning setting of the immersion length.
- Dual Element: Specific variants, indicated by the "-DUAL" suffix (e.g., SAT-QD-30-24-HSTW-M-DUAL), provide dual element sensing capability.
PDFs & Manuals
