Differential Pressure Sensor 100kPa specs not clear

Help & Support Robot Parts
1

Hi,

I would like to have more information about the product that you are selling, manufactured by Phidgets.

It is not clear from the product description if the pressure different is +/- kPa or if it’s only positive, between 0 to 100 kPa.

We need to connect one port to the atmospheric pressure and sense the pressure on the other port, that can go above or below the atmospheric pressure by 1 bar.

Thanks,
Andrea

2

Hello @AndreaFEG,

Welcome to RobotShop community.

Here are the full specifications of the sensor:

Product Specifications

Sensor Properties
Sensor Type Gas Pressure (Differential)
Controlled By VoltageRatio Input
Sensor Output Type Ratiometric
Pressure Differential Min 0 Pa
Pressure Differential Max 100 kPa
Case Pressure Max 400 kPa
Pressure Resolution 111 Pa
Measurement Error Max ± 2.5 %
Warm-up Time 20 ms
Response Time Max 1 ms
Electrical Properties
Supply Voltage Min 4.8 V DC
Supply Voltage Max 5.3 V DC
Current Consumption Max 10 mA
Output Impedance 1 kΩ
Output Voltage Min 250 mV DC
Output Voltage Max 4.8 V DC
Physical Properties
Operating Temperature Min -40 °C
Operating Temperature Max 125 °C
Recommended Tubing Size 3⁄32″
Customs Information
Canadian HS Export Code 8473.30.00
American HTS Import Code 8473.30.51.00
Country of Origin CN (China)

Let us know if you need further information.

Sincerely,

3

Hi Ebram,

Thanks for your fast response.

I want to confirm on this spec.
Pressure Differential Min 0 Pa
Pressure Differential Max 100 kPa

Assuming that we have 100kPa of pressure on one port, the sensor would be able to measure the pressure on the second port on a range that goes from 0kPa to 200kPa.
Is this correct?

Thank you,
Andrea

4

Hello @AndreaFEG,

Thank you for your reply.

According to the description from the specs, the sensor can only read 100kpa, like it only has a 0 to 100kpa gauge.

The sensor can also has a max pressure of 400kpa so you can read the pressure up to 400kpa but only if the pressure on the first port is 300kpa or above.

You can confirm this with the manufacturer directly as well:
[email protected]

Let us know if you need further assistance.

Sincerely,