Flowmeter Input
21
1. Squarewave, CMOS or Pulse
2. Open Collector
With 15
�
A/
150
�
A
internal pull up
current
3. Reed Switch - External DC Power
With 150
�
A
i
nternal pull up
current
Note: For a switch or reed input with contact bounce link DBH can be switched "on"
by linking across the two right pins above DBH. This will eliminate the effect of
switch bounce while limiting the input frequency to 200Hz.
Link Settings
Link 1
Link 2
Link 3
COIL
PULSE
DBL
DBH
NPS
Switching threshold voltage is 1.3 volts.
Link Settings
Link 1
Link 2
Link 3
COIL
PULSE
DBL
DBH
NPS
Link Settings
Link 1
Link 2
Link 3
COIL
PULSE
DBL
DBH
NPS