2018-05-09
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Table 2.3. Energy pulse values at the pulse output in normal mode
Energy unit
kWh / MWh
GJ
Gcal
Pulse value
1 kWh/pulse
0.005 GJ/pulse
0.001 Gcal/pulse
Table 2.4. Volume pulse values at the pulse output in normal mode
Flow sensor nominal flow q
p
0.6; 1; 1.5; 2.5; 3.5; 6 m
3
/h
10; 15; 25; 40; 60 m
3
/h
Pulse value
1 l/pulse
10 l/pulse
Optional plug-in modules
M-Bus module
Radio wM-Bus module (868 MHz)
Modbus RTU module (RS-485)
BACnet module (RS-485)
M-Bus module
Designed for data reading and programming the meter via M-Bus protocol. The total working time of the serial communication interface is
limited to 200 minutes a month (for protection of the battery against premature discharge). Unused communication time limit is summarized.
Once the communication time limit has been spent, the interface is locked out till new time limit for communication will be given (16 seconds
for each next hour).
Power supply
The standard version of meter has one AA-size battery (3.6 V; 2.7 Ah; Li-SOCl
2
) installed inside the calculator. The minimum battery life is 11
years, including the voltage required for operation of the pulse outputs. The meter can be equipped with up to two batteries.
As an option meter could be equipped with external power supply module (12-42 V DC or 12-36 V AC 50/60 Hz,10 mA max). The power supply
module is installed inside the calculator in place designated for second battery. In such case meter has one AA-size battery (3.6 V; 2.7 Ah;
Li-SOCl2) inside with a minimum battery life of 11 years (not including the voltage drain by reading of optional communications modules) and
powers the meter whenever the external power source is turned off.
An optional power adapter (230 V 50/60 Hz / 12 V AC) is available separately with a cable which total length is 2.5 m to feed the external power
supply module.
Mechanical specification
Calculator dimensions:
117 × 44 × 89.5 mm
Flow sensor dimensions:
Total meter weight:
Table 2.5. Weight of meters
Connection type and size; flow sensor length
Max. meter weight (kg)
G3/4" (110 mm)
0.8
G1" (130 mm)
0.9
G1" (190 mm)
1.1
G1 ¼" (260 mm)
3.6
G2" (300 mm)
7.4
DN20 (190 mm)
2.9
DN25 (260 mm)
6.1
DN40 (300 mm)
9.2
DN50 (270 mm)
8.5
DN65 (300 mm)
13.0
DN80 (300 mm)
15.0
DN100 (360 mm)
18.0
Environmental class:
C according to EN 1434
Ambient temperature:
calculator
from +5°C to +55°C (condensing, indoor installation)
flow sensor
from -30°C to +55°C
Relative humidity:
< 93
Mechanical environment class:
M1
Electromagnetic environment class:
E2
Calculator enclosure ingress protection rating:
IP65
Flow sensor enclosure ingress protection rating:
IP65 (IP67 available on custom order)
