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    Digital Pressure Transducer 5 PSI/30 PSI/100 PSI/3000 PSI/8000 PSI

    5 out of 5 based on 3 reviews | Write a review
    Digital pressure transducer with classic 2088 type head has high accuracy of 0.5%FS, medium temperature of -40~+60℃ (-40~+140℉) and optional measuring range -0.1~60MPa/ -1~600bar/ -14~8702psi. Pressure transducer is used for gauge pressure/absolute pressure/sealed pressure measurement of air, water, oil, etc. The output signal can be 4-20mA or RS485.
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    Delivery date: 6-12 days

    Digital pressure transducer for air/water/oil pressure measurement has optional output signal 4-20mA or RS485.

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


    Model ATO-PRES-PX400
    Weight 1.6kg
    Measuring range * -0.1~60MPa (-1~600bar/-14~8702psi)
    Pressure type Gauge pressure (standard), absolute pressure, sealed pressure
    Measure medium Air, water, oil
    Power supply * DC 12V, DC 24V, DC 12-36V
    Output signal * 4-20mA, RS485
    Accuracy * ±0.5%FS, ±0.3%FS
    Zero temperature drift ±0.03%FS/℃
    Sensitivity temperature drift ±0.03%FS/℃
    Long term stability ≤0.2%FS/year
    Overload pressure 200%FS
    Frequency response (-3dB) 5kHz~650kHz
    Thread of pressure connection * G1/4, G1/2, 1/4NPT, 1/2NPT, M14*1.5, M20*1.5
    Response time <10ms
    Operating temperature -40~+80℃ (-40~+176℉)
    Medium temperature -40~+60℃ (-40~+140℉)
    Material Housing: 304 stainless steel
    Fill fluid: silicon oil
    Pressure port: 304 stainless steel, or 316L stainless steel (customizable)
    Separating diaphragm: 304 stainless steel, or 316L stainless steel (customizable)
    Protection class IP67

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

    Digital pressure transducer dimension drawing (unit: mm):
    Digital pressure transducer dimensional drawing
    Pressure transducer wiring diagram:
    Pressure transducer wiring drawing

    RS485 output wiring diagram

    Pressure transducer rs485 output wiring

    Note: For the output signal RS485, it is only a 485 communication protocol, if you need the data to be received from the PC through the RS485 port, then the PC used should be a PC for industrial application, which can support 485 communication function (such as touch screen HMI upper computer, etc.), A USB to 485 communication interface is also needed to connect the sensor to the PC.

    Tips: Why the pressure transducer has no output?

    1. When the pressure transducer is used with a display instrument, if there's no display on the instrument, it should be judged first whether the pressure sensor has no output or the display instrument is faulty. Measure the output of analog pressure transducer with a multimeter to see if it has a current output of 4-20mA. If the pressure transducer is used with a signal isolator and DCS, it can be judged by measuring the current with a multimeter.
    2. If the pressure transducer doesn't have output, check firstly whether the 24V power supply is normal. If the 24V power supply and power supply are normal, but the pressure transducer still has no output, check whether the power cord is connected reversely, whether the positive and negative poles of the signal are connected incorrectly. If they are, check whether there are open circuit faults in the whole circuit.
    3. If all above inspections are normal, the hardware of the pressure transducer may break. If the circuit board of pressure transducer is damaged, it directly leads to no current output. Overload or over-voltage of the pressure transducer will also lead to damage of its measuring component, which may also lead to no current output; Damage of the transducer's gauge outfit would also lead to no current output. Short-circuit the gauge outfit directly with two wires and it will be normal after short-circuit, indicating that the gauge outfit is damaged. If the LCD head has no display, check the LCD board first, and then check the circuit board. If there's still no output, check the EMI board and circuit board.

    Measuring range conversion table:

    Unit kPa MPa bar psi
    Measuring range 0~5 0~0.005 0~0.05 0~0.7
    0~10 0~0.01 0~0.1 0~1.5
    0~20 0~0.02 0~0.2 0~3
    0~50 0~0.05 0~0.5 0~7
    0~100 0~0.1 0~1 0~14
    -100~0 -0.1~0 -1~0 -14~0
    -100~100 -0.1~0.1 -1~1 -14~14
    0~600 0~0.6 0~6 0~87
    0~1000 0~1 0~10 0~145
    0~1600 0~1.6 0~16 0~232
    0~2500 0~2.5 0~25 0~362
    0~6000 0~6 0~60 0~870
    0~10000 0~10 0~100 0~1450
    0~20000 0~20 0~200 0~2900
    0~30000 0~30 0~300 0~4351
    0~40000 0~40 0~400 0~5801
    0~50000 0~50 0~500 0~7252
    0~60000 0~60 0~600 0~8702
    0~100000 0~100 0~1000 0~14503

    Existing reviews of Digital Pressure Transducer 5 PSI/30 PSI/100 PSI/3000 PSI/8000 PSI
    -0.1MPa ~ 0.1MPa Digital Pressure Transducer
    I specially come to write a review after the completion of the system test. I bought a digital pressure transducer with measuring range of -0.1MPa ~ 0.1MPa. The pressure transducer has very good stability and quality. I install it near a 55kW fan VFD, and I don't use the shielded wire. The digital pressure transducer is still not disturbed.
    From: Hayden | Date: 07/08/2019
    Was this review helpful? Yes No (0/0)
    Questions about pressure sensors
    I want to ask you can I connect the pressure sensor output RS485 directly with pc by used cable RS485 converter, also can I connect 4 sensors to the computer at the same time?
    From: Yannis | Date: 20/12/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes. First, all four sensors and PC (such as touch screens) must support RS485 communication protocol.
    I see this sensor has rs485 capabilities. Can it also talk modbus over this?  How can I read pressure information?
    From: Greg | Date: 24/02/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, it  complies with the MODBUS communication protocol and adopts the subset RTU
    mode and RS485 half-duplex working mode in the MODBUS protocol. And if you want more information,  you can click the link
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