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    Diaphragm Pressure Sensor for Water/Viscous Liquid

    5 out of 5 based on 3 reviews | Write a review
    Diaphragm pressure sensor can prevent blocking of viscous liquid. The internal ASICs convert the mV signal into a standard current (4-20mA/0-20mA), voltage (0-5V/1-5V/0-10V) or RS485 signal. Pressure sensor with stainless steel sealing structure has small size, light weight, high anti-vibration and anti-shock performance, measuring range 0~35MPa/ 0~350bar/ 0~5076psi, medium temperature -40~+60℃ (-40~+140℉), for water/viscous liquid pressure measurement.
    SKU: ATO-PRES-P350
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    Delivery date: 6-12 days

    Pressure sensor for water/viscous liquid pressure measurement has optional output signal, such as 4-20mA/0-20mA/0-5V/1-5V/0-10V/RS485.

    Application: Pressure sensor is widely used in food, medicine, hygiene and brewing industries.


    Model ATO-PRES-P350
    Weight 0.4kg
    Measuring range * 0~35MPa (0~350bar/0~5076psi)
    Pressure type Gauge pressure (standard)
    Contact us for absolute pressure, sealed pressure type (note that the measuring range for these two types must ≤1MPa)
    Measure medium Pure water, wine, fruit juice, viscous liquid
    Power supply * DC 12V, DC 24V, DC 12-36V
    Output signal * 2 wire: 4-20mA, 0-20mA
    3 wire: 0-5V, 1-5V, 0-10V
    Accuracy * ±0.5%FS, ±0.3%FS, ±1%FS (when output signal is 0-5V or 0-10V)
    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
    Electrical connection * DIN connector type, M12 circular connector type, direct lead wire type
    Thread of pressure connection * G1/2, 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)
    Sealing: FKM (medium temperature ≤ +200℃/+392℉), EPDM, NBR
    Cable length 2m
    Protection class IP65

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

    Pressure sensor dimension drawing (unit: mm):
    Diaphragm pressure sensor dimensional drawing
    Pressure sensor wiring diagram:
    Pressure sensor wiring diagram
    Tips: Why the pressure sensor output signal is smaller than 4mA?
    The most common reasons for maximum display is an improper selection of the pressure sensor's range or wrong setting of range, or zero shift is not made in liquid level measurement, thus making the output current of the pressure sensor to exceed 20mA. When the circuit of pressure sensor is suspected to be faulty, the circuit board can be replaced to judge the faults. Damage of the pressure sensor's diaphragm will also lead to over-range failure. For example, the output current of the diaphragm pressure sensor used for measuring vapor is greater than 20mA, and it's found after disassembling that some diaphragms have a lot of bumps, some diaphragms deform after freezing or overheated. The failure causes may be abnormal steam tracing which leads to condensate freezing, or long-term contact between the steam and diaphragm box caused by leakage. It also indirectly illustrates the importance of on-site inspection.

    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 Diaphragm Pressure Sensor for Water/Viscous Liquid
    For my measurement experiment
    I've had this pressure sensor for half a month. I use this sensor for my pressure measurement experiments. The sensor works well and the data is accurate. I would recommend it to my friends.
    From: Paulo | Date: 13/06/2022
    Was this review helpful? Yes No (0/0)
    Pressure sensor works better than expected
    I bought two pressure sensors of these, and both work as they should. Pretty accurate for what I am using for. The price is good and I will definitely purchase this product again!
    From: Alston | Date: 18/03/2022
    Was this review helpful? Yes No (0/0)
    Pressure sensors for pneumatic conveying experiments
    I bought two ordinary type pressure sensors and two flat diaphragm pressure sensors. I am ready to do pneumatic conveying experiments. There is no problem with the initial inspection. I will carefully test the parameters in later experiments.
    From: Jayden | Date: 15/11/2018
    Was this review helpful? Yes No (0/0)
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