MULTICAL®
403
32
Kamstrup
A/S
∙
Technical
description
∙
5512
‐
1689_B1_GB_03.2017
3.2.6
Pulse
inputs
A
and
B
>FF
‐
GG<
MULTICAL®
403
has
2
extra
pulse
inputs
(A
and
B)
which
are
placed
on
the
communication
modules
(see
paragraph
11
for
further
details
on
modules).
The
pulse
inputs
are
used
for
acquisition
and
remote
accumulation
of
pulses
from
e.g.
mechanical
water
meters
and
electricity
meters.
The
pulse
inputs
function
independently
of
the
meter
itself.
Therefore,
they
are
not
included
in
any
energy
calculation.
The
constructions
of
the
two
pulse
inputs
are
identical
and
can
be
individually
set
up
to
receive
pulses
from
water
meters
or
electricity
meters.
Pulse
inputs
A
and
B
are
placed
on
selected
communication
modules.
The
table
below
is
a
part
of
the
type
number
overview,
which
shows
the
module
type
numbers.
The
table
distinguishes
between
modules
with
pulse
inputs
(In
‐
A,
In
‐
B)
and
modules
with
pulse
outputs
(Out
‐
C,
Out
‐
D).
Modules
Data
+
2
pulse
inputs
(In
‐
A,
In
‐
B)
10
Data
+
2
pulse
outputs
(Out
‐
C,
Out
‐
D)
11
M
‐
Bus,
configurable
+
2
pulse
inputs
(In
‐
A,
In
‐
B)
20
M
‐
Bus,
configurable
+
2
pulse
outputs
(Out
‐
C,
Out
‐
D)
21
Wireless
M
‐
Bus,
EU,
configurable,
868
MHz
+
2
pulse
inputs
(In
‐
A,
In
‐
B)
30
Wireless
M
‐
Bus,
EU,
configurable,
868
MHz
+
2
pulse
outputs
(Out
‐
C,
Out
‐
D)
31
BACnet
MS/TP
+
2
Pulse
inputs
(In
‐
A,
In
‐
B)
66
Modbus
RTU
+
2
Pulse
inputs
(In
‐
A,
In
‐
B)
67
MULTICAL
403
registers
the
accumulated
consumption
of
the
meters
connected
to
inputs
A
and
B
and
saves
the
counter
values
every
month
and
every
year
on
target
date.
The
number
of
these
yearly
and
monthly
loggings
depends
on
the
selected
logger
profile
(RR
‐
code).
Read
more
about
data
logger
profiles
in
paragraph
3.2.11.
In
order
to
make
identification
easier
during
data
reading,
the
meter
numbers
of
the
two
meters
connected
to
inputs
A
and
B
can
be
saved
too.
The
meter
numbers
can
be
programmed
into
the
meter
in
SETUP
loop
or
via
METERTOOL
HCW.
Two
alarm
types
are
connected
to
the
pulse
inputs,
cold
water
leakage
and
external
alarm
respectively.
Unless
otherwise
informed
by
the
customer,
the
meter
is
by
default
prepared
for
external
alarm
on
both
inputs
from
the
factory,
but
only
with
active
leakage
alarm
on
input
A
(like
in
MC402).
Please
contact
Kamstrup
A/S
should
you
need
leakage
alarm
possibility
on
input
B.
Read
more
about
cold
water
leakage
in
paragraph
3.2.8
and
more
about
info
codes
in
paragraph
7.7.
Below
please
find
specification
of
requirements
to
pulse
duration
and
pulse
frequency
for
meters
connected
to
pulse
inputs:
Pulse
inputs
A
and
B
In
‐
A
65
‐
66
and
In
‐
B:
67
‐
68
via
module
Electronic
switch
Reed
contact
Pulse
input
680
k
pull
‐
up
to
3.6
V
680
k
pull
‐
up
to
3.6
V
Pulse
ON
0.4
V
for
30
ms
0.4
V
for
500
ms
Pulse
OFF
2.5
V
for
30
ms
2.5
V
for
500
ms
Pulse
frequency
3
Hz
1
Hz
Electrical
isolation
No
No
Max.
cable
length
25
m
25
m
Requirements
to
ext.
contact
Leak
current
at
function
open
1
A
