Standard Span & Zero Adjustment Once all of the connections are complete, you can begin to set up the sensor/amplifier system. You will need to have the output from the IAA300 connected to a device so you can read the voltage.
2. Flip the correct DIP switches to attain the corresponding value 3. Press the Shunt pushbutton 4. While the shunt is enabled and the IAA300 is reading the simulated load, adjust the span (described above) to the correct output. Ex. If you are using a 2 mV/V sensor with a 350 Ω bridge and the default 60.4 kΩ...
Excitation There are two excitation values available on the IAA300: 10 VDC (default), and 5 VDC. To select the excitation, simply flip the DIP switch to the appropriate configuration. The excitation voltage controls the maximum output of the amplifier.
DIP switch to the appropriate configuration. Ex. If you are using your IAA300 with a tension and compression load cell and you have tension setup as the positive direction, but now you would like to have compression as the positive direction, all you have to do is flip the DIP switch from the default polarity position (straight) to the reverse polarity position.
Tel: (949) 465-0900 Fax: (949) 465-0905 Bandwidth There are five bandwidth settings available on the IAA300: 100 Hz, 1 kHz (default), 10 kHz, 25 kHz, and 50 kHz. To select the bandwidth, simply flip the DIP switches to the appropriate configuration.
However, it sometimes happens that the rated output from the sensor is not exactly 2.0 mV/V or 3.0 mV/V. The IAA300 has a ±10% of R.O. adjustment range so a sensor with an output close to one of the input ranges will work fine.
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