YUANKY single flow non-valve-controlled smart water meter multi jet home water meter
Product features
Hall sensor can measure any waveform of current and voltage, such as DC, AC, pulse, and even transient peak.The secondary current truly reflects the primary current waveform.However, ordinary transformers cannot. The ordinary one can only provide measurements of 50Hz sine waves.
The primary circuit is completely insulated from the secondary circuit.Insulation voltage is generally 2KV – 12KV, special requirements can reach 20KV ~ 50KV.
High precision: the accuracy is better than 1% at the working temperature, can measure any waveform, but the general accuracy of ordinary transformers is 3% ~ 5%, only suitable for 50Hz sine wave.
Technical parameters
|
Diameter |
DN15 |
DN20 |
DN25 |
Range rae |
80(Q3/Q1) |
Operating pressure |
≤1.6Mpa |
|
(Q1) |
0.031 |
0.016 |
0.079 |
Accuracy grade |
B |
Pressure loss |
≤0.1Mpa |
|
(Q2) |
0.05 |
0.025 |
0.0126 |
Protect grade |
IP65 |
Working temperature |
0~30℃ |
|
(Q3) |
2.5 |
4 |
6.3 |
Power supply |
3.0V |
Screen display |
LCD Range ratio8 |
|
(Q4) |
3.1 |
5 |
7.9 |
Maximum permissible errors |
Q3±2%, Q2±2%, Q1±5% |
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Communication motherboard parameters
|
Measurement method |
Ultrasonic dual channel |
Abnormal remind |
Abnormal failure report, Voltage and current alarm |
Periodic reporting |
Periodic reporting data |
|
Historical data storage |
Store hourly/daily/monthly for godays |
Indicator lamp |
Communication lamp/rigger lamp |
Current and voltage |
Collect current and voltage values |
|
Battery voltage alarm |
Alarm when the power is less than 10% |
Screen display |
LCD |
Uart |
Four wire |
|
Extemal storage |
256K |
AI SET |
Pin type 4 needles |
Environment temperature |
-40 TO 85 |
|
Support agreement |
Big-end mode HEX |
Communication |
20MA |
Display |
digital |
|
Communication mode |
LORAWAN |
NB-IOT |
Current |
WIFI |
RS485 |
M-BUS |
|
Extermnal Transport |
lorawan |
Wireless communication |
Wireless communication/GPRS/TCP/UDP |
Wireless communication/WIFI/TCP/UDP |
R5485-wire |
Wireless communication/M-BUS TCP/UDP |
|
Antenna |
Soft antenna |
Soft antenna |
Spring antenna |
Spring antenna |
/ |
Spring anternna |
|
Support agreement |
Big end mode HEX |
Big end mode HEX |
Big end mode HEX |
Big end mode HEX |
Modbus RTU |
Big end mode HEX |
|
Communication |
Low frequency High frequency |
NB-IOT |
GPRS |
2.4G |
RS485 |
M-BUS |
|
Pulse singna |
/ |
/ |
3-wire GNDS1 S2 |
3-wire GNDS1 S2 |
3-wire GNDS1 S2 |
3-wire GNDS1 S2 |
|
Screen display |
LCDbutton switching scree |
LCDbutton switching scree |
LCDbutton switching scree |
LCDbutton switching scree |
LCDbutton switching scree |
LCDbutton switching scree |
|
Communication distance |
2-3KM |
2-3KM |
2-3KM |
＜10m |
/ |
/ |
|
Wire length lineorder |
/ |
/ |
/ |
/ |
Wire length:m Line order:4-wire Positive/negative A/B |
/ |
|
Power supply |
Main power + Standby power |
Main power + Standby power |
Main power + Standby power |
Main power + Standby power |
485 power + Standby power |
Main power + Standby power |
|
Advantage |
High cost effective/extemal magnet activation/multifunction/standard interface |
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|
Low power consumption 12-20UA(sleep current)/High cost effective/ultra-small shape/high reliability(40 to 85℃ test temp.)/rich peripherals |
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