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Water meter wifi /domestic water meter/ dn20 single flow non valve control smart water meter with LORAWAN module
Water meter wifi /domestic water meter/ dn20 single flow non valve control smart water meter with LORAWAN module
Water meter wifi /domestic water meter/ dn20 single flow non valve control smart water meter with LORAWAN module
Water meter wifi /domestic water meter/ dn20 single flow non valve control smart water meter with LORAWAN module
Water meter wifi /domestic water meter/ dn20 single flow non valve control smart water meter with LORAWAN module
Water meter wifi /domestic water meter/ dn20 single flow non valve control smart water meter with LORAWAN module
Water meter wifi /domestic water meter/ dn20 single flow non valve control smart water meter with LORAWAN module
Water meter wifi /domestic water meter/ dn20 single flow non valve control smart water meter with LORAWAN module

Water meter wifi /domestic water meter/ dn20 single flow non valve control smart water meter with LORAWAN module

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Quick Details

Brand Name:
ZHONGYI
Model Number:
DN20
Model:
ZYLXSG-X-A
Nominal diameter:
15
Accuracy grade:
2
Temperature rating:
T30
Pressure of work:
1.6Mpa
The pressure loss:
≤ 0.1Mpa
Protection grade:
IP66
Communication mode:
LORAWAN
Power supplye:
3.6V
Certification:
CE

Quick Details

Warranty:
1years
Type:
Multi-jet meters
Place of Origin:
Jiangsu, China
Brand Name:
ZHONGYI
Model Number:
DN20
Model:
ZYLXSG-X-A
Nominal diameter:
15
Accuracy grade:
2
Temperature rating:
T30
Pressure of work:
1.6Mpa
The pressure loss:
≤ 0.1Mpa
Protection grade:
IP66
Communication mode:
LORAWAN
Power supplye:
3.6V
Certification:
CE
product appearance:
Single flow non valve control intelligent water meter
technical parameters:

technical standard
CJ/T224-2012《Electronic remote water meter》
GB/T778.1~3-2007《Close the measurement of water flow in a full pipe and use cold and hot water meters for drinking water》
accuracy rating
Level 2
work pressure
≤1MPa
pressure loss
≤0.1MPa
leakproofness
1.6MPa water pressure, no leakage, leakage and damage within 15 minutes
nominal pressure
≤1MPa
nominal voltage
3.6V
Protection grade
IP68
working voltage
2.7V~3.6V
lowest reading
0.00005M3
full-scale reading
99999M3
Climate and mechanical environment safety rating
Class B
transmitted power
20dBm
frequency error
+/-10ppm
receive sensitivity
-140dBm
working frequency range
433/470MHz(780/868/915MHz are available)
Modulation Mode
LoRa
communication distance
No sheltered distance indoors:1.5km
storage temperature
-40~125°C
Battery model
ER18505M
Outdoor open space:3.5km
operating temperature
-40~85°C
Life Time
10 years
medium temperature
Hot water meter temperature:1℃~90℃
quiescent dissipation
<8uA
closing valve time
≤5S
Cold water meter for 1℃~45℃
Receiving power
<20mA
relative humidity
≤90%
Launching power
<100mA
Control valve normal operating current
<70mA
Measurement level
Class B

Metering introduction:

Hall sensor: it can measure water consumption in non-contact way and meanwhile convert measured data to display for user
In a water meter, the rotating rotor is a changing magnetic flux to the hall element,which causes the hall magnetic sensor to produce a changing electrical signal. In the principle of magnetic induction, a magnet is installed on the pointer of the mechanical water meter ; Hall magnetic sensor is fixed in the appropriate position, and the pointer rotation drives the magnet rotation.When the magnet approaches or leaves hall magnetic sensor, hall magnetic sensor can sense the signal, change the rotation number into the number of pulses, and send the pulses to the signal collector after shaping.The amount of water consumption can be determined by the number of pulses.

Advantages:

1. Hall sensor can measure the current and voltage of any waveform, such as dc, ac, pulse,and even the transientpeak.The secondary current faithfully reflects the waveform of the primary current. But , the ordinary transformer can’t . The ordinary one can only supply to measuring 50Hz sine wave.
2. The primary circuitis of complete electrical insulation fromthe secondary circuit. The insulation voltage is generally 2KV to 12KV, and can reach 20KV to 50KV for special requirements.
3. High accuracy: the accuracy is better than 1% underthe operating temperature , which is availablefor measuring any waveform But , the general accuracy of ordinary transformer is 3% to 5% and it is only suitable for 50Hz sine wave.

Communication mode :

1. LORAWAN
(1)Component: Lorawan has four parts
Node: gas meter, water meter, position , alertor etc.
Gateway: receiving data
Network platform : Management of equipment in base station, DNSEG control etc.
User’s data background : data storage and application processing for user
The main chip of LORAWAN communication module adopts the high-performance embedded ARM cortex-m3 32-bit RISC controller, which
ensures the stability of the device with multilevel software detection and multiple hardware protection mechanisms.It is composed
of the powerful ARM cortex-m3 32-bit RISC microcontroller and Lorawan wireless spread spectrum chip .
(2)Product features:
1. measurement function
* real-time pulse counter accumulates flow
* strong magnetic detection trigger alarming info.
2. historical data store locally
* the data during latest 90 days store every one hour
* the data during the latest 180 days stores everyday
* the data during the latest 1 year stores every month
3. Power supply: one main battery for supplying daily , another one for spare battery
4. Main battery capacity level indicator
* In each measurement data consumption on the road up the service reported to the battery capacity level suffixü
* Low battery threshold :when the battery capacity is less than 20%, it will trigger low battery alarm and the low battery
alarming info.will be reported every 24 hours untill spare battery switch threshold
* Battery switch threshold : capacity of 10% will trigger the switch of spare battery
5. Spare battery switch only in the following cases; otherwise, use the main battery.
* Pull out the battery or the battery does not exist
* the main battery theshold is 10%
* The switch of spare battery is automatic so that i will not be outage
6. Spare battery function
* Water flow control partial measurement
* historical data storage
* spare battery exceeds 7 days at least
* When spare battery is used , the alarming info. Of spare battery will be reported to server
7. The spare battery protection in transportation
* Prior to on-site activation, the meter is equipped with only spare batteries, and in the warehouse or during transportation,
protection will be provided to prevent the consumption of the spare batteries.
8. Battery life: 6
9. operating temp.:-5~+ 85℃
10. LED indicator: indicates LORA event
11. Manual triggering lorawan uplink for testing
12. Wireless technology: lorawan in EU868
13. LoRaWAN class: class A
14. LoRaWAN reports regularly measured data for a period of 24 hours by default
The message payload includes
* the latest accumulated measured data
* statue of meter: valve,power, strong magnetic detection
* battery capacity
* lorawan downlink signal indicator RSSI/SNR
15. LoRaWAN fixed time metering data report (ON/OFFconfigurable).LoRaWAN metering data report is triggered every day at fixed time
(e.g. 23:00, configurable), and the message payload is the same as the periodic report
* the latest accumulated measured data
* statue of meter: valve,power, strong magnetic detection
* battery capacity
* lorawan downlink signal indicator RSSI/SNR
16. LoRaWAN alarming info. Uplink report
* low battery alarm
* spare battery switch alarm
* valve error alarm
* strong magnetic detection alarm
17. LoRaWAN downlink set/inquire
* Set up/query LoRaWAN periodic metering data report cycle
* Fixed time measurement data report/switch/set up/inquiry/time
* Modify accumulated water flow data for calibration
* read the data of current accumulated water flow
* battery capacity reading
* valve control switch

After the communication module is superimposed, if combined with the integrated energy
control platform software independently developed by the company,It can realize:

* Unmanned, reduced manpower.
●automatic data logging.
●Industrial-grade communication equipment ensures the safety and reliability of meter reading.
●Complete system log traceability is available.
●Visual graphics, data statistics.
●Meter status alarm;When low-power and low-volume magnetic attack sampling fault leakage alarm (external leakage alarm) occurs,
real-time alarm information is uploaded to the background application platform.
●Control the gasmeter valve switch through background application software (desktop WEB and mobile APP).
●When the meteris removed or attacked by external forces, the information will be transmitted to the background application
platform in real time
●The stability of data transmission can be monitored.
Application:
Factory environment
Qualification:
Packing and delivery:
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