Badger Meter Registers - Manual (Page 31)

User Manual
Pulse-signal PNP / PNP-LP
The ER-420 is suitable for use with flowmeters which have a PNP output signal For a reliable pulse detection, the pulse
amplitude has to go above 1 2V Signal setting PNP-LP employs a low-pass signal noise filter, which limits the maximum input
frequency (see "Details of Setup Functions" on page 15 ) For a signal detection level of 50% of the supply voltage, see "Active
signals 8.1V to 12V and 24V" on page 31
Active signals 8.1V to 12V and 24V
If a sensor gives an active signal, see "Details of Setup Functions" on page 15 The detection levels are 50% of the selected
supply voltage; approximately 4V (ACT_8 1) or 6V (ACT_12) or 12V (ACT_24)
Page 31 May 2014