Datasheet

Specifications are subject to change without notice EM24 DIN DS 220213 5
EM24 DIN
Number of inputs 3
Input frequency 20Hz max, duty cycle 50%
Pr
escaler adjustment From 0.001 to 999.9 m
3
or
kWh per pulse
Contact measuring voltage 5VDC +/- 5%
Contact measuring current 10mA max
Input impedance 680
Ω
Contact resistance ≤100Ω, closed contact
≥500kΩ, open contact
W
orking modes
(DP version excluded) Selectable:
• total and partial ener
gy
meters (kWh and kvarh)
without digital inputs;
• total and partial energy
meters (kWh and kvarh)
managed by time periods
(t1-t2-t3-t4), W dmd syn-
chronisation (the synchr
o
-
nisation is made every time
the tarif
f changes) and
GAS (m
3
) or W
ATER (hot-
cold m
3
) or remote heating
(kWh) meters or external
kWh meter;
• total and partial energy
meters (kWh and kvarh)
managed by time periods
(t1-t2), W dmd synchroni-
sation (the synchr
onisation
Digital input specifications
is made independently
from the tariff selection)
and GAS (m
3
) or WATER
(hot-cold m
3
) or remote
heating (kWh) meters or
external kWh meter;
• total ener
gy (kWh, kvarh)
and GAS, WATER (hot-cold
m
3
), remote heating, exter-
nal kWh meters (3 choices
only).
W
orking modes
(DP version only) Selectable:
• GAS (m
3
) or W
ATER (hot-
cold m
3
) or remote heating
(kWh) meters
Note The energy metering is
only made by means of the
analogue inputs.
Insulation By means of optocouplers,
4000 VRMS digital inputs
to measuring inputs,
4000 VRMS digital inputs
to power supply input.
• total and partial energy
meter (kWh, kvarh) man-
aged by time periods (t1-t2).
Alarms
Used Dupline function Monostable (push-button)
Used channells Selectable (A1 to P8). No
control that the selected
channels are not used for
counters or analog vari-
ables.
Number of alarms 2 per instrument
Alarm modes Up alarm, down alarm (see
the table “List of the
variables that can be
connected to”)
Set-point adjustment From 0 to 100% of the dis-
play scale
Hysteresis From 0 to full scale
On-time delay 0 to 255s
Output status Normally energised
Available variables All, except for the “max”
variables
Number of variables 8 per instrument
80 per network
Dupline data format 3 1/2 DGT BCD
Full scale value Selectable from 1.999 to
1999M
Used channels depending on the number
of variables
Multiplexer A1 to A4
Value G1 to H8 (1
st
group of 16
variables)
I1 to J8 (2
nd
group of 16
variables)
K1 to L8 (3
th
group of 16
variables)
M1 to N8 (4
t
h
group of 16
variables)
O1 to P8 (5
th
group of 16
variables)
Available variables All, except for the “max”
variables
Synchro/Tariff input
Used Dupline functions Monostable (push-button)
Realtime
Used channels A5
Working mode Selectable:
• none
• Wdmd synchronization
Dupline specifications