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8. Calibration
When shipped, all modules are calibrated. The calibrate gain and offset are stored in the EEPROM.
But in order to measure voltage more accurately in certain extreme environments, we provide a
visual manually calibration method.
First, please prepare the following items and tools
Precise wave generator
-The higher the precision the better.
Download calibrate tool
Please visit the product website to download the tool.
https://www.icpdas.com/en/product/PET-AR400
Please connect the PoE or power supply and switch to the module.
Then set the wave generator to output 102.4 Hz, 20Vpp Sin wave and connect it to the channel
that needs to be calibrated.
PET-AR400 User Manual
V1.0.0
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