Installation and Setup of Pressure Transducer with Voltage Output

These instructions are applicable only to pressure transducers with voltage output. Pressure transducers with 4-20mA output are supported, but require a different procedure. Please refer to the appropriate Zenseio user guide.

Pressure transducers that have voltage output (0-5V or 0-10V) can be connected only to GPI2 or GPI3 ports.

Pressure transducers with output voltage range less than 5V or with high output impedance are not recommended due to potential analog accuracy loss.

1. In Zenseio mobile configuration app:
   
1. Set VAUX voltage output to 12V (or the excitation voltage required by your sensor).
2. Select “Voltage” mode on the chosen GPI port (GPI2 or GPI3).
   
3. Set settling time 1000 ms (or the required measurement duration for your sensor).
4. For "Supply VAUX?", select "Yes"
2. Wire connections (Wire color coding may differ between sensor models. Always refer to the specific sensor’s instruction manual): 
1. Connect black wire to GND.
   
2. Connect red wire to VAUX.
3. Connect green wire to the selected GPI port (GPI2 or GPI3).
   

Data interpretation/scaling (in your application software)

The General formula:

Pressure (psi) = (Maximum Pressure Range in psi * Measured Output Voltage in Volts) / Full-Scale Output Voltage

where:

1. Full-Scale Pressure Range = sensor’s maximum rated pressure (e.g., 100 psi, 200 psi)
   
2. Measured Output Voltage = current sensor output (e.g., 3.2 V)
   
3. Full-Scale Output Voltage = sensor’s maximum output voltage (e.g., 5 V, 10 V)
   

Examples

-----------

0–10 V Pressure Transducer

Formula:

Pressure (psi) = (Maximum Pressure Range × Measured Voltage) / 10

Example:

For a 100 psi transducer measuring 4 V:

Pressure = (100 × 4) / 10 = 40 psi

0–5 V Pressure Transducer

Formula:

Pressure (psi) = (Maximum Pressure Range × Measured Voltage) / 5

Example:

For a 200 psi transducer measuring 3 V:

Pressure = (200 × 3) / 5 = 120 psi

For sensors with other voltage ranges or output characteristics, consult the sensor manufacturer’s specifications.

ZenConfig mobile app settings

Wiring 

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