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    Differential Pressure Transducer, Output 4-20mA HART

    $686.67
    Differential pressure transducer has high accuracy 0.075%FS, optional measuring range 0~3MPa/ 0~30bar/ 0~435psi, medium temperature -40~+60℃ (-40~+140℉), special for air/water/oil pressure measurement. Pressure transducer has output signal of standard current 4-20mA or 4-20mA HART.
    SKU: ATO-PRES-2051
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    Free shipping
    Delivery date: 15-20 days

    Differential pressure transducer for air/water/oil pressure measurement has optional output signal 4-20mA or 4-20mA HART.

    Application: Pressure transducer is widely used in process control, chemical, petroleum and metallurgical industry and other fields.

    Specification:

    Model ATO-PRES-2051
    Weight 1.6kg
    Measuring range * 0~3MPa (0~30bar/0~435 psi)
    Range ratio 10:1 (minimum), 100:1 (maximum)
    Pressure type Gauge pressure, absolute pressure, sealed pressure
    Measure medium Air, water, oil
    Power supply DC 24V
    Output signal * 4-20mA, 4-20mA HART
    Accuracy ±0.075%FS
    Zero temperature drift ±0.03%FS/℃
    Sensitivity temperature drift ±0.004%FS/℃
    Long term stability ≤0.1%FS/3 years
    Overload pressure 200%FS
    Frequency response (-3dB) 5kHz~650kHz
    Operating temperature -40~+80℃ (-40~+176℉)
    Medium temperature -40~+60℃ (-40~+140℉)
    Material Housing: 316L stainless steel
    Fill fluid: silicon oil
    Pressure port: 316L stainless steel
    Separating diaphragm: 316L stainless steel
    Connection The connecting thread on the pressure tap is NPT1/2. The thread of the output cable connection hole is M20*1.5.
    Protection class IP67
    Additional options * LCD display with backlight
    Accessories * Mounting bracket, stainless steel 3-valve group

    Note: * denotes optional parameters, you can select every parameter in drop-down lists to finish your order.

    Differential pressure transducer mounting diagram (unit: mm):
    Differential pressure transducer mounting diagram
    Differential pressure transducer wiring diagram:
    Differential pressure transducer wiring diagram
    Tips: Operating Steps of Start and Stop a Differential Pressure Transducer
    There are at least five valves connecting with the differential pressure transducer, among, two sampling valves are used for sampling and cutting off the process media, two blow-down valves are used to flush the connecting pipe or remove condensate or gas from the connecting pipe. The connecting pipes are connected with the differential pressure transducer through three-valve group or five-valve group, and the starting and stopping of differential pressure transducer are mostly operated on the three-valve group.

    1. Stop Method of Differential Pressure Transducer
      When closing the differential pressure transducer, the steps for closing the three-valve group are as follows: close the negative pressure valve first, then open the balanced valve, and finally close the positive pressure valve. If the differential pressure transducer is out of operation for a long time, both positive and negative pressure valves of primary valve and three-valve group should be closed, the balanced valve should be opened to ensure equal pressure on both sides of the transducer's measuring room, in a balanced state.
    2. Start Method of Differential Pressure Transducer
      When starting the differential pressure transducer, the steps for opening the three-valve group are as follows: open the positive pressure valve firstly, then close the balanced valve, and finally open the negative pressure valve.
      When starting or stopping the differential pressure transducer for steam flow measurement, the differential pressure transducer with isolator, and the liquid level differential pressure transducer with a balanced container, the positive pressure valve/negative pressure valve/balanced valve cannot be opened at the same time when operating the three-valve group. Because even if it is opened in a short time, the condensate water in the balanced container and the isolation fluid in the isolator may run off, resulting in the incorrect display of meter, and even the differential pressure transducer cannot be put into operation in serious cases. When necessary, the drain valve and exhaust valve on the measurement room of differential pressure transducer shall be used to remove the air or condensate water.
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