HYDAC HMG 3000 - Manual (Page 24)

HMG 3000 Page 24
Edition 11/2007 - V02 R01-S02 Stock no.: 669712
Examples of frequency measurement:
1) You would like to measure a frequency up
to 1000 Hz. Frequencies are recorded by the
HMG per minute. Enter "60" as the Factor to
display the frequency in Hz, enter "1000" for
the Upper measurem. range to scale the Y-
axis from 0 to 1000 in the graphical display.
2) You would like to measure the speed of a
machine from 0 to 2900 rpm, the speed
sensor supplies 2 pulses per revolution.
Enter "2" as the Factor and "3000" as the
Upper measurem. range
. The display is
then in revolutions per minute; for the
graphical display, the Y-axis is scaled from 0
to 3000.
3) A flow rate measurement transmitter in a
measurement range up to 450 l/min with a
frequency output supplies 8 pulses per liter.
Enter "8" as the Factor and "500" as the
Upper measurem. range
.
The display is then in l/min; for the graphical
display, the Y-axis is scaled from 0 to 500.
Examples of counter pulses:
1) The switching output of a proximity switch
on a conveyor belt is connected to the
frequency input of the HMG 3000. Enter "1"
as the Factor and the expected maximum
quantity to be counted (maximum 30000) as
the Upper measurem. range.
2) A gear flow meter supplies 250 pulses per
liter. Enter "250" as the Factor and as the
upper measurement range, the maximum no.
of liters expected (maximum 30000). If you
input 30000 as the Upper measurem. range
you can count up to 120 liters.