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    RTD Sensor, Pt100, Sheath, 3 Wire

    5 out of 5 based on 1 reviews | Write a review
    Pt100 RTD sensor is a platinum resistor temperature sensor, with small diameter, good flexibility, good vibration resistance, high accurate and fast thermal response time. RTD sensor can directly measure the temperature in the range of -200~+420 ℃ in various production processes.
    This product has a minimum quantity of 2
    Free Shipping Worldwide
    Delivery date: 6-20 days

    RTD (resistance temperature detector) sensor can directly connect to secondary instrument by copper conductor, and provide accurate input signal of temperature changes for display instruments, recording instruments, signal conditioners, scanister and computer.


    1. RTD temperature range and accuracy chart

    Type of sensing element Measuring range Allowable deviation Δt
    Pt100 -200~420℃ Class B (-200~800℃) Permissible deviation ±(0.30+0.005|t|)
    Class A (-200~650℃) Permissible deviation ±(0.15+0.002|t|)

    Note: t is the actual measuring temperature absolute value of the temperature sensing element.
    2. Thermal response time of RTD sensor

    Sheath diameter (mm) Thermal response time (s)
    Ф3 ≤3
    Ф4 ≤5
    Ф5 ≤8
    Ф6 ≤12
    Ф8 ≤22

    3. Installing form (unit: mm)
    RTD installing form

    Installing standard size Sheath diameter
    Ф8 Ф6 Ф5 (Ф4) Ф4 Ф3 Ф2
    M M16*1.5 M12*1.5
    S 22 19
    D Ф60 Ф50
    D0 Ф42 Ф36
    D1 Ф24 Ф20
    d0 Ф9 Ф7
    S 22 19

    4. RTD sensor connection mode (unit: mm)
    RTD sensor connection mode
    5. Selection chart

    Branch number Installing form Mode of connection Sheath diameter Sheath length
    B1: Single branch;
    B2: Double branch
    I1: No fixed device;
    I2: Fixed card sets of thread joint;
    I3: Movable card sets of thread joint;
    I4: Fixed card sets of flange;
    I5: Movable card sets of flange
    C0: Simple terminals;
    C3: Standard waterproof protection head;
    C4: Explosion-proof protection head;
    C6: Aviation plug;
    C9: Direct lead 3 wire
    D3: Φ3;
    D4: Φ4;
    D5: Φ5;
    D6: Φ6;
    D8: Φ8
    Single branch: 100~1000mm;
    Double branch: 100~500mm

    Tips: Differences between sheath RTD sensor and general thermal resistance
    The sheath RTD sensor is the thermal resistance that is soldered and sealed thermistor temperature-sensing element in the sheath wire, which consists of metal casing pipe, insulation material and metal wires. The metal casing material of sheath wire is usually stainless steel. The lead wire is usually copper conductor or silver conductor, and the insulation material is usually magnesium oxide.
    There are many characteristics of sheath RTD sensor compared with the general thermal resistance.

    1. The external diameter of thermistor can be small, so its time constant is small and reaction speed is fast.
    2. It has bendability and is suitable for temperature measurement of complex structure and small equipment.
    3. It has good vibration resistance and impact resistance.
    4. It has long service life.

    In this video, ATO will show you how to connect RTD sensor to temperature controller and how to use RTD sensor to measure water temperature.

    Existing reviews of RTD Sensor, Pt100, Sheath, 3 Wire
    3 wire RTD sensor Pt100
    The accuracy of PT100 RTD sensor is good, and the error at 170℃ is about 0.2℃. So it will continue to be used with no problem.
    From: Jonathan | Date: 26/09/2018
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