Digital Pressure Sensor for Hydraulic/Steam/Air
Digital pressure sensor has a LCD screen with backlight and power supply DC 24V/12V, can output current signal (4-20mA/0-20mA), voltage signal (0-5V/1-5V/0-10V) or RS485 signal. Pressure sensor has small size, light weight, high anti-vibration and anti-shock performance, measuring range -0.1~100MPa/ -1~1000bar/ -14~14503psi, medium temperature -40~+60℃ (-40~+140℉), for hydraulic/steam/air pressure/high-temperature liquid measurement.
Pressure sensor for hydraulic/steam/air 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 process control, aerospace, automotive, medical equipment, HVAC and other fields.
Specification
| Weight | 0.4kg |
| Measuring range * | -0.1~100MPa (-1~1000bar/-14~14503psi) |
| 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 | Hydraulic, steam, air, high-temperature liquid (non-explosion proof area) |
| 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
RS485
(Note: Pressure sensor designed without LCD screen for 2 wire 0-20mA, 3 wire 0-5V, 1-5V, 0-10V and RS485 output signal. The direct lead wire type pressure sensor is also not equipped with an LCD screen.) |
| 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 * | G1/4, 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)
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)
Pressure sensor wiring diagram:
RS485 output wiring diagram
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: Selection of pressure sensor sensitivity
Generally, within the linear range of sensor, it is better that the sensitivity of pressure sensor is as high as possible. Only when the sensitivity is high, the value of output signal corresponding to the measured change is relatively large, which is conducive to signal processing. However, it should be noted that if the sensitivity of pressure sensor is too high, the external noise which is irrelevant to the measurement is easy to mix in, which will also be amplified by the amplification system, thus affecting the measurement accuracy. Therefore, it is required that the digital pressure sensor itself should have a high signal noise ratio to minimize the interference signal introduction from the outside.
The sensitivity of digital pressure sensor is directional. When the measured object is a single vector and has high directional requirements, the sensor with low sensitivity in other directions should be selected. If the measured vector is a multi-dimensional vector, it is better to select the digital pressure sensor with smaller cross sensitivity.
