6
•
emergency transmitting of the alarm message in case of one of the next emergency situations:
◦
fixation of external magnetic field influence;
◦
low internal battery charge;
◦
leak fixation (continuous consumption < 0.3 cubic meter per hour);
◦
fixation of a breakthrough (continuous consumption > 0.3 cubic meter per hour).
•
there are two operation modes (“Storage” and “Operation”);
•
control of the battery passivation level and automatic depassivation when it is necessary.
1.3 SPECIFICATION
The main specification is shown in the table 1.
Table 1
Parameter
Value
Basic
Meter type
SHVE-15
SGVE-15
Nominal diameter, mm
DN15 (15 mm)
Ambient temperature,
о
С
+5…+55
Relative humidity of ambient air, %
от 0 до 100
Ambient pressure range, kPa
от 86 до 106
Temperature class
Т30
Т90
Maximum admissible pressure
MAP10
Pressure loss
∆
p
63
Flow profile sensitivity classes
U0/D0
Ratio Q
3
/Q
1
(HR/VR)
100/50
Flow rate HR/VR, m
3
/h
Maximum Q
4
2,0/2,0
Permanent Q
3
1,6/1,6
Transitional Q
2
0,025/0,051
Minimum Q
1
0,016/0,032
Capacity of indicator, m
3
99999,9999
Resolution of the reading, m
3
0,0001
Reverse water flow
The meter does not allow measurements in the reverse
flow. It is recommended to install a non-return valve.
Average service life of the meter, years
12
Interface
Optical port, LoRaWAN radio channel
Weight of one pulse on the optical port, m
3
0,000025
0,000050
Pulse duration at the optical port,
μ
s
100
Radio
Protocol
LoRaWAN
