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Resetting the DPM-3221
There are two ways to clear the previously stored data.
1. Press and hold the Reset button (5) until the LCD display indicates “Press again 5 seconds to
reset”, then release the Reset button and press again holding for 5 seconds to delete the data.
2. Use the external power source socket and connect the remote I/O (white wire) as shown below. This is
marked RC on the s i d e o f t h e DPM to t h e G N D o r negative terminal (black wire) for 3 seconds.
All previously recorded data is then erased.