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WRR-330 WRR-321 WRR-322 WRR-323 WRR-331 B thermocouples

Home Products Shanghai Automation Instrumentation No. 3 Factory Thermocouples WRR-330 WRR-321 WRR-322 WRR-323 WRR-331

WRR-330 WRR-321 WRR-322 WRR-323 WRR-331 B thermocouples

  • Category:Thermocouples
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    Description

    WRR-330 WRR-321 WRR-322 WRR-323 WRR-331 B thermocouples

    Product introduction:

    WRR-330 WRR-321 WRR-322 WRR-323 WRR-331 B thermocouples, the current source needs a sampling current for feedback. Although there are other methods for sampling, the most stable and accurate method is still resistance sampling.
    Popular knowledge: The resistance power used for sampling is at least 20 times greater than the sampling power, so that no obvious drift due to heat is caused.
    Continuing last time, the current of 100mA_ level is a very common current value, but it is usually an awkward current value for resistance sampling.
    A_ grade current does not usually require too high accuracy. It is mainly sampled with a shunt, as long as the power is sufficient.
    The mA / 10mA_ level current is relatively simple. Since it does not produce significant sampling power, the usual precision metal film resistors can meet the requirements.
    The current of 100mA_ is not small or small. It does not have such a large resistance value with a shunt, and it does not have such high power with a precision metal film resistor.

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    Product Categories

    • Shanghai Automation Instrumentation No. 3 Factory
      • Thermocouples
      • Thermal resistance
      • Bimetal thermometer
      • Temperature transmitter
      • Non-contact thermometer
    • Shanghai Automation Instrumentation No. 4 Factory
      • Pressure guages
      • Pressure transmitters
      • pressure controllers
    • Shanghai Far East Instrumentation Factory
    • Shanghai Automation Instrumentation No. 5 Factory
      • Ultrasonic Level Meter
      • Magnetic Level Gauge
      • Magnetostrictive Liquid Level Transmitter
      • Guided Wave Radar Level Meter
      • Electric Float Level Transmitter
      • Floating Ball Level Meter
      • Floating Ball Liquid Level Switch
      • Radio frequency admittance switch
      • Input-Type Liquid Level Transmitter
      • Tuning Fork Level Switch
      • Intelligent Radar Level Meter
      • Resistance level switch
    • Shanghai No. 9 Automation Instrumentation Co., Ltd.
      • Electromagnetic Flowmeter
      • V-Cone Flowmeter
      • Glass Rotor Flowmeter
      • Metal Tube Rotor Flowmeter
      • Throttling Device
      • Ellipse Flowmeter
      • Vortex Flowmeter
      • Turbine Flowmeter
      • Wedge Flowmeter
      • Sliding vane flowmeter
      • Roots flowmeter
      • Flow Switch
    • Shanghai Automation Instrumentation No. 11 Factory
      • Electric Actuator
      • electric-pneumatic valve positioner
      • angle electric actuator
      • Intelligent electric actuator
    • Shanghai Automation Instrumentation No. 7 Factory
      • Electric control valve
      • Pneumatic control valve
    • Shanghai Automation Instrumentation Co., Ltd.
    • Shanghai ZiYi Marine Instrument Co.,Ltd
      • Frequency Meter
      • Ammeter
      • Power Factor Meter
      • Voltmeter
      • Current voltmeter
      • Controllable Voltage Regulator
      • Megger
    • Shanghai Automation Instrument Tachometer and Instrument Motor CO.,LTD
      • Fixed magnetic tachometer
      • Handheld centrifugal tachometer
      • Rotating speed digital displayer
      • Electric tachometer
      • Non-contact handheld digital tachometer
      • Standard speed generator
    • Shanghai Dahua Instrument Factory
      • Automatic balanced recorder
      • Circular chart recorder
      • Intelligent digital display regulator
      • Intelligent data logging device
    • Shanghai Hua Dong Electronic Instrument Factory
      • Weighing sensor
      • Weighing controller
      • Weighing amplifier
      • Weighting Resistance Strain Meter

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