VFM-60
Vortex Flowmeter
Rev1.3
Date:24/04/2020 User’s Manual
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3.1.3 Wiring for RS485
Picture 3.5 Wiring for RS485
3.2 Wiring for 12-terminal board
3.2.1 Wiring for 3 wire pulse output
3-wire pulse output require a power source of 13.5~42VDC. VFM use a current pulse output with
50% duty ratio. If the pulse reciving instrument require voltate pulse, please add a resistor between
‘
’
and “V-”, the resistance should be within 500
~1000
, and power consumption should be
no less than 0.5W.
Picture 3.6: 3-wire pulse output wiring
