Yokogawa 202 Field Mounting Rate Totalizer - Manual (Page 33)

Flowmeter Input 29
4. Reed Switch - External DC Power
With 150
µ
A internal pull up current
Note: For a switch or reed input with contact bounce link DBH can be switched "on". This will
eliminate the effect of switch bounce while limiting the input frequency to 200Hz.
5. Coils
Note: If the input has a very high impedance,
the following link settings should be used:
Link Settings
Link 1
Link 2
Link 3
COIL PULSE
DBL DBH
NPS
Link Settings
Link 1
Link 2
Link 3
COIL PULSE
DB DBH
NPS
825R input impedance
eg. Millivolt signal from paddlewheel
or turbine (15mV P-P minimum).
Link Settings
Link 1
Link 2
Link 3
COIL PULSE
DBL DBH
NPS