Products for USB Sensing and Control Canada flag
Products for USB Sensing and Control

sales inquiries

quotes, distributor information, purchase orders
sales@phidgets.com

technical inquiries

support, advice, warranty, returns, misshipment
support@phidgets.com

website inquiries

corrections or suggestions
web@phidgets.com

Address

Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada

PHIDGETS Inc.

Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada
+1 403 282-7335

Differential Air Pressure Sensor 100 kPa

ID: 1139_0B

This differential air pressure sensor plugs into an Analog Input or VINT Hub port and measures pressure from 0 kPa to 100 kPa.

$30.00

Quantity Available: 228

Qty Price
5 $28.50
10 $27.00
25 $24.00
50 $21.00
100 $19.50
50+...

Note: The 1139_0B is identical to the 1139_0, except that you have the option of which size of Phidget cable to include.

The 1139 Differential Pressure Sensor is a dual ported air pressure sensor that measures the pressure difference between the two ports. It can measure pressure from 0 kPa to 100 kPa.

This sensor is designed to measure the pressure of clean, non-condensing air. Contact with moist air (i.e, human breath), dusty air, or other gases can shorten the lifespan of the sensor.

Features

  • Measures the pressure differential between its two ports from 0 to 100 kPa
  • Resolution of 111 Pascals
  • Connects to a Phidgets VINT port or voltage input

Interface Boards and Hubs

This sensor can be read by any Phidget with an Analog Input or VINT Hub port. It will connect to either one using a Phidget cable. VINT Hub ports can behave just like Analog Inputs, but have the added flexibility of being able to be used as digital inputs, digital outputs, or ports to communicate with VINT devices. For more information about VINT, see the VINT Overview page.

Product Voltage Inputs
Part Number Price Number of Voltage Inputs Voltage Input Resolution (bits)
HUB0002_0
VINT Hub Phidget
$40.00 6 (Shared) *** 15 bit
HUB0007_0
1-Port VINT Hub Phidget
$24.00 1 (Shared) ** 16 bit
HUB0001_0
VINT Hub Phidget
$35.00 6 (Shared) * 15 bit
HUB0000_1
VINT Hub Phidget
$30.00 6 (Shared) *** 15 bit
HUB5000_0
Wireless VINT Hub
$60.00 6 (Shared) * 16 bit
SBC3003_0
PhidgetSBC4
$120.00 6 (Shared) * 16 bit
DAQ1000_0
8x Voltage Input Phidget
$20.00 8 12 bit
1018_3B
PhidgetInterfaceKit 8/8/8
$80.00 8
1011_0
PhidgetInterfaceKit 2/2/2
$50.00 2 10 bit
1018_2B
PhidgetInterfaceKit 8/8/8
$80.00 8 10 bit
1010_0
PhidgetInterfaceKit 8/8/8 Mini-Format
$70.00 8 10 bit
1019_1B
PhidgetInterfaceKit 8/8/8 w/6 Port Hub
$110.00 8 10 bit
1203_2B
PhidgetTextLCD 20X2 : White : Integrated PhidgetInterfaceKit 8/8/8
$70.00 8 10 bit

Phidget Cables

This sensor requires a Phidget cable to connect it to an InterfaceKit or Hub. You can solder multiple cables together in order to make even longer Phidget cables, but you should be aware of the effects of having long wires in your system. See a full list of Phidget cables below.

Product Physical Properties
Part Number Price Cable Length
3003_0
Phidget Cable 10cm
$1.50 100 mm
CBL4104_0
Phidget Cable 30cm
$1.75 300 mm
3002_0
Phidget Cable 60cm
$2.00 600 mm
CBL4109_0
Phidget Cable 60cm
$2.00 600 mm
CBL4105_0
Phidget Cable 90cm
$2.00 900 mm
3038_0
Phidget Cable 120cm
$2.25 1.2 m
CBL4106_0
Phidget Cable 150cm
$2.50 1.5 m
3039_0
Phidget Cable 180cm
$2.75 1.8 m
3004_0
Phidget Cable 350cm
$3.00 3.5 m
KIT4030_0
Phidget Cable Kit
$10.00 80 mm


Getting Started

Welcome to the 1139 user guide! In order to get started, make sure you have the following hardware on hand:


Next, you will need to connect the pieces:

1139 0 Connecting The Hardware.jpg
  1. Connect the 1139 to the HUB0000 with the Phidget cable.
  2. Connect the HUB0000 to your computer with the USB cable.


Now that you have everything together, let's start using the 1139!

Using the 1139

Phidget Control Panel

In order to demonstrate the functionality of the 1139, we will connect it to the HUB0000, and then run an example using the Phidget Control Panel on a Windows machine.


The Phidget Control Panel is available for use on both macOS and Windows machines. If you would like to follow along, first take a look at the getting started guide for your operating system:


Linux users can follow the getting started with Linux guide and continue reading here for more information about the 1139.

First Look

After plugging in the 1139 into the HUB0000, and the HUB0000 into your computer, open the Phidget Control Panel. You will see something like this:

HUB0000 Panel.jpg


The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:

  • Serial number: allows you to differentiate between similar Phidgets.
  • Channel: allows you to differentiate between similar objects on a Phidget.
  • Version number: corresponds to the firmware version your Phidget is running. If your Phidget is listed in red, your firmware is out of date. Update the firmware by double-clicking the entry.


The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.

Voltage Ratio Input

Double-click on a Voltage Ratio Input object in order to run the example:

1018 Sensors VoltageRatioInput.png


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page.
  • Select the 1139 from the Sensor Type drop-down menu. The example will now convert the voltage into pressure (kPa) automatically. Converting the voltage to pressure (kPa) is not specific to this example, it is handled by the Phidget libraries, with functions you have access to when you begin developing!


Technical Details

General

The 1139 uses bipolar processing to provide an accurate, high level analog input signal that is proportional to the applied pressure. When the sensor is plugged in, the sensor voltage should default to about 0.2V, which corresponds to 0 kPa between the two ports.

Ports

The sensor comes with a positive top port and a negative bottom port. These ports have a diameter of 2.79mm to 3.30 mm (nominal 3mm).

Take caution when connecting the pressure ports- this sensor only measures a positive pressure differential, and you could damage the sensor if you connect it in reverse. Ensure that the upper port is always at an equal or higher pressure than the lower port.

1138 0 Ports.jpg

For hosing, we recommend using polyurethane tubing. We have had good results with 2.4mm ID tubing from EMI. In imperial measurement, 3/32” ID tubing is equivalent. This is available through laboratory supply stores such as Cole Parmer.

Formulas

The Phidget libraries can automatically convert sensor voltage into pressure (kPa) by selecting the appropriate SensorType. See the Phidget22 API for more details. The Formula to translate voltage ratio into Pressure is:




Phidget Cable

Analoginput.jpg

The Phidget Cable is a 3-pin, 0.100 inch pitch locking connector. Pictured here is a plug with the connections labelled. The connectors are commonly available - refer to the Analog Input Primer for manufacturer part numbers.

What to do Next

  • Programming Languages - Find your preferred programming language here and learn how to write your own code with Phidgets!
  • Phidget Programming Basics - Once you have set up Phidgets to work with your programming environment, we recommend you read our page on to learn the fundamentals of programming with Phidgets.


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 332
Customs Information
Canadian HS Export Code 8473.30.00
American HTS Import Code 8473.30.51.00
Country of Origin CN (China)

Documents

Product History

Date Board Revision Device Version Packaging Revision Comment
Oct 2012 0 N/A Product Release
December 2020 0 N/A BRemoved Phidget cable from packaging

This device doesn't have an API of its own. It is controlled by opening a VoltageRatioInput channel on the Phidget that it's connected to. For a list of compatible Phidgets with VoltageRatio Inputs, see the Connection & Compatibility tab.

You can find details for the VoltageRatioInput API on the API tab for the Phidget that this sensor connects to.

Code Samples



Example Options


Downloads

				Make your selections to display sample code.
					

Here's a list of our gas pressure sensors:

Product Sensor Properties
Part Number Price Sensor Type Pressure Min Pressure Max Pressure Differential Min Pressure Differential Max Pressure Resolution
PRE1000_0
Barometer Phidget
$15.00 Gas Pressure (Absolute) 50 kPa 110 kPa 250 mPa
1141_1B
Absolute Air Pressure Sensor 15-115 kPa
$30.00 Gas Pressure (Absolute) 15 kPa 115 kPa 111 Pa
1140_1B
Absolute Air Pressure Sensor 20-400 kPa
$30.00 Gas Pressure (Absolute) 20 kPa 400 kPa 413 Pa
1126_1B
Differential Air Pressure Sensor ± 25kPa
$30.00 Gas Pressure (Differential) -25 kPa 25 kPa 55 Pa
1136_0B
Differential Air Pressure Sensor ±2 kPa
$30.00 Gas Pressure (Differential) -2 kPa 2 kPa 5 Pa
1137_0B
Differential Air Pressure Sensor ±7 kPa
$30.00 Gas Pressure (Differential) -7 kPa 7 kPa 17 Pa
1138_0
Differential Air Pressure Sensor 50 kPa
$32.00 Gas Pressure (Differential) 0 Pa 50 kPa 56 Pa