AKCP SPX+ Introduction Manual page 94

SPX+ Introduction Manual - updated until firmware 4997
In the Flow Sensor there is "Number of Pulse per Unit" in the config.
You can use this value to adjust the sensor reading to match the real-world value.
Dry contact will also work but only to count the pulses. If you want to test for the rate accuracy, you'd
have to test with something that can generate a wave signal, like using an oscilloscope to generate
wave form and plug it to the sensor port.
But the general idea of this sensor is that it will show the rate of received pulses and also count it.
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