PEE1V03
20-11- 2017
7
External communication modules and interfaces
Optical interface
Integrated into the front panel of calculator. It is designed for data reading via M-bus protocol
and
parameterization of the meter.
The optical interface starts work (is activated) only after pressing control button and
automatically
shuts
down after 5 minutes, after the last pressing any button or after completing data transmission via interface.
Optional plug in modules
M-Bus module
CL module (Current loop)
MODBUS RS485 module
LON module
RF module 868 MHz
MiniBus module
BACnet module
It is designed for data reading via M-bus protocol and parameterization of the meter.
I
f meter is powered from internal battery - the total working time of serial communication interface is limited
up
to
200
minutes per month
( for protection of the battery against premature discharge).
Unused limit of communications
are summarized. The interface is blocked after the expiration of a limit and only after change of the hour, the new
time limit of communications will be given (for 16 seconds for each next hour).
Pulse outputs
Pulse outputs
2 (OB-normal mode, OD-test mode)
Type: open collector, permissible current up to 20mA,
voltage up to 50V.
Pulse duration: 125 ms
– in the normal operating mode,
1.2 ms
– in the test mode
Pulse values (energy and volume) on pulse output device in the operating mode as specified in the table
below :
- energy pulse output values
:
Energy units
„MWh“
„GJ“
„Gcal“
Pulse value of thermal energy
1 kWh/pulse
0,005 GJ/pulse
0,001 Gcal/pulse
- flow (volume) pulse output values
:
Permanent flow rate, q
p,
m
3
/h
0,6 ... 6
10
… 60
Pulse value, l/pulse
1
10
Supply voltage
Internal battery
size AA, 3,6 V, 2,4 Ah, lithium battery (Li-SOCl
2
)
service life not less than 11 years
External power supply
12 V…42 V DC or 12 V…36 V,50/60 Hz AC,10 mA
max
+
internal
b
ackup battery:
size AA, 3,6 V, 2,4 Ah, lithium battery
(Li-SOCl
2
) service life not less than 11 years (without data reading via a
digital interface)
– for powering of the meter, when the external power
supply is turned off.
External power supply module is mounted inside in the meter.
Mechanical data
:
Dimensions of calculator
117 mm x 44 mm x 89,5 mm,
Dimensions of flow sensors
According to Annex B
Weight
:
Connection type of flow sensor
Weight of meter, not more than, kg
G3/4“ (110 mm)
0,7
G1“ (110 mm)
0,7
G1“ (130 mm)
0,8
G1“ (190 mm)
0,9
DN20 (190 mm)
2,5
