15
Phone:(910)
392
‐
2490
Fax:
(910)
392
‐
2123
416
Landmark
Drive
Wilmington,
NC
28412
www.easterninstruments.com
Frequency,
Flow
Rate
Proportional
(Rate)
Digital
Output
Power
Required
The
CentriFlow®
Meter
Electronics
is
capable
of
outputting
a
Totalizing
Pulse
Output
signal.
The
Frequency,
Flow
Rate
Proportional
signal
is
a
pulse
signal
and
is
labeled
“Rate”
at
the
CUSTOMER
CONNECTION
block.
The
frequency
of
the
signal
is
0
to
500
pulses
per
second.
The
Rate
+,
supplied
by
the
customer
can
be
between
12
and
24
Volts.
The
Rate
‐
is
connected
to
the
Common
or
Power
Supply
Ground.
By
connecting
the
Rate
+
and
Rate
‐
with
customer
supplied
power
and
ground,
the
Rate
Out
signal
will
be
isolated
from
the
Digital
Electronics.
Although
the
preferred
method
of
supplying
power
to
the
Rate
output
is
customer
supplied
power,
+24V
local
power
is
also
available.
Using
the
local
power,
however,
results
in
a
loss
of
isolation.
This
Totalizing
Pulse
Output
will
output
a
Voltage
Pulse
that
is
related
to
the
Electronic
Full
Scale
Flow
Rate.
For
example,
if
the
Electronic
Full
Scale
Flow
Rate
were
calibrated
to
be
300
lb./min,
then
a
flow
rate
of
150
lb./min
would
correspond
to
a
pulse
of
250,
or
50%
of
Elec
‐
tronic
Full
Scale
Flow
Rate.
Remote
Reset/Zero
Digital
Input
Pushbutton
Switch
By
installing
a
push
button
on/off
switch
or
other
mechanical
relay
contact,
the
Remote
Input
can
be
used
to
remotely
reset
your
count.
In
order
for
this
option
to
be
utilized
the
push
but
‐
ton
on/off
switch
or
other
mechanical
relay
contacts
(customer
supplied)
must
be
installed
using
the
connection
listed
below.
Please
note
that
these
inputs
are
prewired
with
voltage
and
only
require
contact
closures
to
operate
correctly
(Wiring
an
SSR
to
this
input
will
not
work
properly).
