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PhidgetBridge 1046, Manual

You can easily install the Cobra 1046 with the help of our comprehensive Installation Manual. This manual is available for free download on our website, providing step-by-step instructions to effortlessly set up your product. Get your hands on the manual from our website and begin the installation process today.

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PhidgetBridge 4-Input

Contents

1 GETTING STARTED

2 USING THE 1046

2.1 Phidget Control Panel

2.1.1 Windows

2.1.2 macOS

2.2 First Look

2.3 Digital Output

3 TECHNICAL DETAILS

3.1 How to Calibrate the Bridge

3.2 Gain Setting vs. Resolution

3.3 Connecting your Strain Gauge/Load Cell

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Summary of Contents for 1046

Page 1: ...NG STARTED 2 USING THE 1046 2 1 Phidget Control Panel 2 1 1 Windows 2 1 2 macOS 2 2 First Look 2 3 Digital Output 3 TECHNICAL DETAILS 3 1 How to Calibrate the Bridge 3 2 Gain Setting vs Resolution 3 3 Connecting your Strain Gauge Load Cell ...

Page 2: ...our sensor to the PhidgetBridge according to the wiring speci ed on the sensor s product page or datasheet See the technical section to learn how to hook up resistive sensors such as RTDs 2 Connect the PhidgetBridge to your computer using the USB cable Now that you have everything together let s start using the 1046 Using the 1046 Phidget Control Panel In order to demonstrate the functionality of ...

Page 3: ...ning the Phidget Control Panel you will see something like this 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 rmware version your Phidget is running If y...

Page 4: ...where you know accurately what is being measured In the case of weight measurement this would be a known force or weight Record the output from the 1046 at one known point and at a second known point It helps if the two values are reasonably far apart Use the values to make a linear equation to convert the 1046 output in V V called X to the appropriate unit you are measuring called Y Two calibrati...

Page 5: ...our strain gauge it s possible to use a multimeter to determine how to connect it provided there are no electronics in the sensor First measure resistance between the 4 wires There are 6 combinations two combinations will have a resistance 20 40 higher than the other four Choose one of these high resistance combinations and wire it into 5V and G on the 1046 Connect the other two wires into Apply a...

Page 6: ...sistance of the RTD the following formula can be used Where is the Bridge Value given by the PhidgetBridge in mV V and and are the resistances of the known resistors Using a Voltage Divider The alternate method requires only two resistors This reduces the amount of error that can be introduced into the system due to resistor tolerances A voltage is applied to the two resistors and the RTD in serie...

Page 7: ...ween the RTD and the 1046 PhidgetBridge Add this resistance to the two resistors Turn off the power to the RTD by disabling the channel on the PhidgetBridge to reduce self heating of the RTD By using higher resistor values 1 Kilo ohm there will be less self heating of the RTD but the resolution of the measurement will be reduced somewhat We recommend 1 Kilo Ohm resistors as a reasonable trade off ...

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