Part 1: Setup
PhidgetTemperatureSensor
Welcome to the 1048 user guide! In order to get started, make sure you have the following hardware on hand:
- a 1048 Phidget Temperature Sensor
- a USB cable and computer
- a thermocouple
Select your Operating System:
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Verify Connection
Step 1: Install Phidgets Library
Before you begin using your Phidgets, you will need to install the Phidget Library.
1. Download the installer for your system:
● 32-bit Installer Download
● 64-bit Installer Download
If you're unsure which one you should get, press ⊞ WIN + Pause/Break:
Before installing our libraries, be sure to read our Software License.
Step 1: Install Phidgets Library
2. Open the download. If it asks you for permission, select Run
Step 1: Install Phidgets Library
3a. Select Next
Step 1: Install Phidgets Library
3b. Read the Licence Agreement. Select Next.
Step 1: Install Phidgets Library
3c. Choose Installation Location. Select Next.
Step 1: Install Phidgets Library
3d. Confirm Install
Step 1: Install Phidgets Library
3e. Wait for Installation to complete. This should only take a few moments.
Step 1: Install Phidgets Library
3f. Installation Complete. Close installation Window.
Step 2: Connect Devices
● Connect USB Cable to your computer and PhidgetTemperatureSensor
● Connect the thermocouple(s) to the PhidgetTemperatureSensor
Step 3: Verify Connection
1. Open the Phidgets Control Panel:
If your Control Panel does not open, look in your taskbar. Double click the Phidget Icon.
Step 3: Verify Connection
2. If connected, your Phidgets will appear in the Phidget Control Panel.
Done!
If you're able to see and interact with your devices in the Phidget Control Panel, you're done with the Setup part of this guide.
Scroll down to Part 2: Using Your Phidget for the next step.
For more help installing in Windows (e.g. manual install, using a VM, etc.), visit this page:
● Windows Advanced Information
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Verify Connection
Step 1: Install Phidgets Library
Before you begin using your Phidgets, you will need to install the Phidget Library.
1. Download the installer for your system:
● OS X 10.11+: Installer Download
● Mac OS X 10.7 - OS X 10.10: Installer Download
● Mac OS X 10.5 - OS X 10.6: Installer Download
Before installing our libraries, be sure to read our Software License.
Step 1: Install Phidgets Library
2. Open the download and double click on Phidgets.pkg
Step 1: Install Phidgets Library
3a. Select Continue
Step 1: Install Phidgets Library
3b. Read and continue. Read the License and click Agree.
Step 1: Install Phidgets Library
3c. Here, you have the option to select the installation location. Select Install to continue.
Step 1: Install Phidgets Library
3d. MacOS may ask for permission to install. Enter your username and password and Install Software.
Step 1: Install Phidgets Library
3e. Wait for Installation to complete. This should only take a few moments.
Step 1: Install Phidgets Library
3f. You may see a message that the extension has been blocked. Select Open Security Preferences.
Step 1: Install Phidgets Library
3g. Beside the message for Phidgets Inc, Click Allow.
Step 1: Install Phidgets Library
3h. Installation Complete, Click Close.
Step 1: Install Phidgets Library
3i. To delete the installer, click Move to Trash.
Step 2: Connect Devices
● Connect USB Cable to your computer and PhidgetTemperatureSensor
● Connect the thermocouple(s) to the PhidgetTemperatureSensor
Step 3: Verify Connection
1. Open the Phidgets Control Panel:
Step 3: Verify Connection
2. If connected, your Phidgets will appear in the Phidget Control Panel.
Done!
If you're able to see and interact with your devices in the Phidget Control Panel, you're done with the Setup part of this guide.
Scroll down to Part 2: Using Your Phidget for the next step.
For more info installing in MacOS (e.g. developer tools, driver extension, etc.), visit this page:
● MacOS Advanced Information
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Verify Connection
Step 1: Install Phidgets Library
1. First, you need to install the libusb-1.0 development libraries. For example, in Debian based distributions:
apt-get install libusb-1.0-0-dev
You’ll also need a C compiler and builder, if you don’t already have one installed.
apt-get install gcc
apt-get install make
Step 1: Install Phidgets Library
2. Next, download and unpack the Phidgets library:
● libphidget22
Step 1: Install Phidgets Library
3. Use the following commands in the location you unpacked to install the library:
./configure
make
sudo make install
Step 1: Install Phidgets Library
4. (Optional) You can also download and unpack the following optional packages:
● phidget22networkserver - Phidget Network Server, which
enables the use of Phidgets over your network
● phidget22admin - Admin tool to track who is connected to your
Phidgets when using the network server
● libphidget22extra - Required for phidget22networkserver
and phidget22admin
● libphidget22java - The Java libraries for Phidget22
For installation instructions for these packages, see the README file included with each one.
Step 2: Connect Devices
● Connect USB Cable to your computer and PhidgetTemperatureSensor
● Connect the thermocouple(s) to the PhidgetTemperatureSensor
Step 3: Verify Connection
1. The easiest way to verify that your libraries are working properly is to compile and run an example program. Download and unpack this C example that will
detect any Phidget:
● HelloWorld C Example
Step 3: Verify Connection
2. Next, open the terminal in the location where you unpacked the example. Compile and run using:
gcc HelloWorld.c -o HelloWorld -lphidget22
sudo ./HelloWorld
ou should receive a “Hello” line for each Phidget channel that is discovered:
You need to run it with sudo in order to be able to access USB devices. In order to use
Phidgets without sudo, you need to set your udev rules. See the Advanced Information page on the final slide of this guide for details.
Done!
If you're able to see your devices in the Hello World example, you're done with the Setup part of this guide.
Scroll down to Part 2: Using Your Phidget for the next step.
For more info installing in Linux (e.g. Udev rules, old versions, etc.), visit this page:
● Linux Advanced Information
Part 2: Using Your Phidget
About
The PhidgetTemperatureSensor with attached thermocouples allows you to measure extreme temperatures. This Phidget connects to a J, K, E, or T type thermocouple. Choose the thermocouple type in software and data will be converted to degrees Celsius automatically. If you have other thermocouple types, you can open the channel in VoltageInput mode and convert it to Celsius manually.
Explore Your Phidget Channels Using The Control Panel
You can use your Control Panel to explore your Phidget's channels.
1. Open your Control Panel, and you will find the following channels:
2. Double click on a channel to open an example program. Each channel belongs to a different channel class:
Expand All
In your Control Panel, double click on "Temperature Sensor (IC)":
In your Control Panel, double click on "Thermocouple Input":
In your Control Panel, double click on "Voltage Input":
Part 3: Create your Program
Part 4: Advanced Topics and Troubleshooting
Expand All
Before you open a Phidget channel in your program, you can set these properties to specify which channel to open. You can find this information through the Control Panel.
1. Open the Control Panel and double-click on the red map pin icon:
2. The Addressing Information window will open. Here you will find all the information you need to address your Phidget in your program.
See the Phidget22 API for your language to determine exact syntax for each property.
Note: Graphing and logging is currently only supported in the Windows version of the Phidget Control Panel.
In the Phidget Control Panel, open the channel for your device and click on the 
icon next to the data type that you want to plot. This will open up a new window:
If you need more complex functionality such as logging multiple sensors to the same sheet or performing calculations on the data, you'll need to write your own program. Generally this will involve addressing the correct channel, opening it, and then creating an Event Handler and adding graphing/logging code to it.
The quickest way to get started is to download some sample code for your desired programming language and then search google for logging or plotting in that language (e.g. "how to log to csv in python") and add the code to the existing change handler.
Filtering
You can perform filtering on the raw data in order to reduce noise in your graph. For more information, see the Control Panel Graphing page.
Graph Type
You can perform a transform on the incoming data to get different graph types that may provide insights into your sensor data. For more information on how to use these graph types, see the Control Panel Graphing page.
The Change Trigger is the minimum change in the sensor data needed to trigger a new data event.
The Data Interval is the time (in ms) between data events sent out from your Phidget.
The Data Rate is the reciprocal of Data Interval (measured in Hz), and setting it will set the reciprocal value for Data Interval and vice-versa.
You can modify one or both of these values to achieve different data outputs. You can learn more about these properties here.
Thermocouples consist of two junctions, one where the thermocouple meets the Phidget and one where the two wires are welded together at the sensing end of the device. In simplified terms, a thermocouple works by detecting the temperature difference between these two junctions. To measure the temperature at the sensing end we need to know the temperature where the thermocouple connects to the Phidget. There is an ambient temperature sensor on the board. The thermocouple reading is automatically calculated using the data from the on board temperature sensor.
An important thing to note is that the ambient temperature sensor measures the temperature of the board and the air around it, though not specifically at the junction. Generally you can assume the two locations are nearly the same temperature, however as the electronics heat up by being powered on, there can be some small error introduced. This is exacerbated by having the board in an enclosed space where normal airflow is restricted thereby increasing the effect of self-heating. As a result we recommend that the board be left in as open and well ventilated/cooled a place as possible to minimize this error source.
For more information on thermocouples, check out the Thermocouple Primer.
