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Rosemount-68Q Temperature Sensor

Rosemount™ 68Q Sanitary Temperature Sensor

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Product Description

The Rosemount 68Q Sanitary Temperature Sensor is an industry-standard, resistance temperature detector (RTD). This sensor is engineered to provide flexible and reliable temperature measurements in hygienic process environments for the food and beverage, pharmaceutical and life-science industries. This RTD is designed with a Tri Clamp® sanitary endcap configuration for easy installation and its aseptic process connection is suitable for clean-in-place (CIP), dead-pocket free, measurement applications.

Specifications

Time Constant / Response
Tri Clamp O.D. tube size 1-in. and greater: Less than 3.5 seconds required to reach 63.2% sensor response; Tri Clamp O.D. tube size 1/2- to 3/4-in.: Less than 1.5 seconds required to reach 63.2% sensor response; see full specs for complete specifications
Stability
Tri Clamp O.D. tube size 1/2- to 3/4-in.: ±0.08% maximum ice-point resistance shift following 1,000 hours at maximum specified temperature 392 °F (200 °C)
Lead Wires
Tri Clamp O.D. tube size 1-in. and greater: ±0.04% maximum ice-point resistance shift following 1,000 hours at maximum specified temperature 392 °F (200 °C)
Insulation Resistance
500 x 10^6 ohms minimum insulation resistance when measured at 100 Vdc at room temperature
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Calibration Options
Customer-specified calibration point or schedule; calibration schedule with Callendar-Van Dusen constants
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Features

  • Designed for hygienic process environments to meet food and beverage, pharmaceutical and life-science industry demands
  • Tri Clamp endcap provides immersion lengths from 1.0 to 9.5 inches (25.4 to 241.3 mm) for easy installation
  • Withstands -58 to 392 °F (–50 to 200 °C) temperature range for application durability
  • Aseptic process connections are suitable for clean-in-place, (CIP) dead-pocket free, measurement applications
  • Surface finishes on sensors and SST connection heads meet 3-A® Standards to ensure reliable performance
  • Variety of enclosure and connection head options offer application flexibility
  • Sensor capsule is welded into the 316 SST sanitary endcap/stem assembly for performance stability
  • Calibration schedules with Callendar-Van Dusen constants improve overall sensor performance and accuracy
  • Provides option for electropolishing wetted parts to meet specific surface finish requirements

Documents & Drawings