sperok Posted May 11, 2011 Posted May 11, 2011 Since I've had a few water system failures at a vacation property it has become important to me to generate an alarm when there is unexpected demand. I've connected an EZIO8T to the pulse output of a water meter and built the following ISY program to count the pulses. Am I in for any surprises? Can the ISY reliably count these pulses? My expectation is that every On to Off transition of the EZIO8T input will trigger a pulse. It appears to work, but I have not tried to calibrate the pulses against the meter yet to get a gallons/pulse figure. If Status 'Irrigation and Sensors / Sprinkler 1 / Irrigation Water Meter' is Off Then $water_pulse += 1 Else - No Actions - (To add one, press 'Action') EZIO8T Inputs are normally pulled up to +5V indicating 'ON'. This counter should increment when grounded by the pulse output on the meter.
LeeG Posted May 11, 2011 Posted May 11, 2011 sperok That should work. Variables are not saved across a power cycle so power interruptions will disrupt the count. My pulse water meter generates one pulse per gallon. High flow meters can be once per 10 gallons. Lee
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