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Sensor: R800-6 / R800-7 Series

Sensor: R800-6 / R800-7 Series

R800-6/R800-7 Platinum/Cobalt Industrial Resistance Thermometers for Very Low Temperature

R800-6/R800-7 are temperature sensors for very low temperature, which use platinum/cobalt dilute alloy for thermosensitive element and that can measure cryogenic temperature region (4K) to normal temperature precisely by one sensor.

Model

R800-6, R800-7

Temperature Range

4K to 375K (R800-6)

15K to 375K (R800-7)

Element

Pt100

Protective Tube

φ2x20mm

Lead Wire

4-wire polyester-coated copper wire φ0.2×L1000mm

Features

  • The temperature from the cryogenic
    temperature (R800-6 4K, R800-7 15K) to the room temperature (300K) can be measured by a single sensor.
  • The accuracy in the whole measuring range is high (±0.5K) and the sensor is interchangeable.
  • The thin capsule metal type durable construction offers low heat capacity and excellent stability.
  • Due to 4-wire type, precision measurement by a DC potentiometer can be executed.

Specifications

Thermosensitive Element: Platinum/Cobalt dilute alloy

Measuring Temperature: R800-6: 4K to 375K R800-7: 15K to 375K

Resistance: Value at 0°C 100Ω±0.15Ω

Tolerance: ±0.5k (refer to standard resistance value table)

Rated Current: 1mA DC

Sensitivity: Min0.09Ω/K (at 12K) Max. 0.40Ω/K

Repeatability: within 10mk

Structure of Thermosensitive Element: Spiral coil type alumina ceramics

Protecting Tube: Capsule type gold plating brass φ2×23mm

Lead Wire: 4-core type polyester covered copper lead wire φ0.2×L1000mm

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R800 Series

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