2. Part Name and Function
2-4
(3)
Pulse Output/Unit Error Output
Pulse Output and Unit Error Output are available for single Air Flow Sensor operation. The
specifications are shown below:
Output method
Nch open drain output
Output Stage Circuit Diagram
Max. rated voltage
24V DC
Max. rated current
50 mA
Residual voltage
Max. 1.5 V
Leakage current
Max. 50 μA
Pulse Output
Output detail
Outputs the measured standard flow rate in the
corresponding unit pulse.
Output unit
1, 10 (Factory default),100, 1000L/P (*)
The pulse output inverts when the half amount of
specified flow rate passes.
(E.g. The output inverts at every 5 L is passed, if
the rate is specified to 10 L/P.)
However, if the frequency increases, the duty may
fluctuate by 20 to 80%.
Unit
error
output
Output detail
Turns ON the output when any of the errors below
occurs.
Detection item
Memory error
Ultrasonic wave measurement error
Pressure measurement error
Temperature measurement error
Power supply voltage drop detection
(*) Can be changed by the D6FZ-FGX21 Air Flow Station.
Pulse Output
Unit error output
0 V
Inside D6FZ-FGS1000
Int
ernal
C
ircuit