一、Product Summary
Dear users, thank you for using our intelligent multi-flow non-valve water meter. Please read this instruction manual carefully before using it, so that you can easily use our products.
Intelligent multi-flow meter is used to realize accurate measurement of flow. The product has the characteristics of beautiful appearance, convenient installation, accurate measurement, stable operation, strong anti-pollution and anti-corrosion capability, long service life, small pressure loss, economy and practicality, etc. It is suitable for flow metering and charging of domestic water, central air conditioning system water, etc.
Implementation standard: GB/T 778 Measurement of water flow in closed full pipeline Drinking cold water meter and hot water meter JJG 162-2009 Cold water meter
二、Working Principle
The intelligent multi-flow meter adopts the principle of intelligent multi-flow. It is a kind of water meter that further calculates the flow rate of water by analyzing and processing the time difference caused by the change of speed when the intelligent multi-flow sound beam propagates downstream and countercurrent in water.
三、Function List
|
Serial Number |
Functions |
Comments |
|
1 |
Metering function |
Accumulated flow of real-time Hall counter |
|
2 |
Water metering data history storage local |
1. For the latest 90 days, the measurement data is stored every hour 2. The latest 180 days, the measurement data is stored every day 3. Monthly storage of measurement data in the latest year |
|
3 |
Power supply |
1. Battery powered 2. External power supply |
|
4 |
Main battery capacity level indication |
The suffix of that current battery capacity level is report to the server in each metering data message uplink report |
|
5 |
LED indication |
Communication events; Screen Cutting Event |
|
6 |
Manual triggering (triggering varies according to different models) |
Button triggers an escalation event Magnet triggers report event Trigger 1 second switch screen Trigger 2 seconds to report data Trigger more than 9 seconds to restart the device |
|
7 |
Wireless technology |
Lorawan/NB/GPRS |
|
8 |
External Interface |
RS485/Mbus |
|
9 |
Periodic reporting |
1 The default period is 24 hours Latest cumulative measurement data Water meter status: valve status/power supply Battery Capacity Level Downlink Signal Strength Indication |
|
10 |
Timed reporting |
1 Fixed time (for example, 23:00, also configurable) triggers metering data reports every day, and the message payload is the same as the periodic report Latest cumulative measurement data Water meter status: valve status/power supply Battery Capacity Level 5LoRaWAN Downlink Signal Strength Indication RSSI/SNR |
|
11 |
Alarm Message Uplink Report |
Battery Capacity Low Level Alarm Backup Battery Switch Alarm |
|
12 |
Screen digital display |
Display Content: Current Reading, Electricity Quantity, Balance 2 Display mode: normally bright (low power consumption screen) |
|
13 |
Mode of transport |
In the transportation mode, log is closed, communication is closed, pulse is not metered, and the operation with minimum power consumption is maintained |
|
14 |
Antenna (Nb/Lorawan/GPRS) |
Built-in antenna (spring/soft antenna) External antenna (chuck antenna) |
|
15 |
Infrared Configuration (Optional, Default None) |
Infrared Setting/Read Table Parameters Infrared Update Program |
|
16 |
Communication mode |
Supported Band |
|
|
M66 (GPRS Communications) |
850/900/1800/1900MHz |
|
|
BC26 (NB Communications) |
B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B66 |
|
|
BC35G (NB Communications) |
B1 @ H-FDD: 2100 MHz B3 @ H-FDD: 1800 MHz B8 @ H-FDD: 900 MHz B5 @ H-FDD: 850 MHz B20 @ H-FDD: 800 MHz B28 @ H-FDD: 700 MHz |
|
|
BG96 (NB/GPRS/CATM Communications) |
Cat M1/Cat NB1: LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/ B19/B20/B26/B28 LTE TDD: B39 (For Cat M1 Only) EGPRS: 850/900/1800/1900MHz BG96-M Cat M1: LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/ B19/B20/B26/B28 LTE TDD: B39 |
|
|
BC66 (NB Communications) |
B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/ B25/B26*/B28/B66 |
|
|
Lorawan Newsletter |
CLASSA, CLASSB and CLASSC modes are supported, and the supported frequency bands are shown in the attachment |
|
|
RS485 communication |
Four lines: red +, black-, yellow A, blue B |
四、Performance characteristics
1. There are no moving parts in the intelligent multi-water meter body, mechanical wear can be used stably and reliably for a long time, and measurement accuracy can be maintained for a long time.
2. The intelligent multi-water meter has a large range ratio and a small initial flow rate, and the range ratio of the water meter can reach: R80 ~ R160; The initial flow rate of the water meter can be as small as 15 liters per hour.
3. The metering accuracy of the intelligent multi-flow meter is the same, but the factory inspection can be required according to the Level 1 accuracy standard.
4. The intelligent multi-water meter has strong adaptability to fluid temperature changes and can achieve T30/T50/T70 temperature grade.
5. The intelligent multi-water meter has strong antistatic and anti-magnetic interference capabilities, and the antistatic can reach more than 12000V V.
6. The intelligent multi-water meter adopts micro-power consumption design technology to minimize the comprehensive power consumption of the water meter and has a service life of more than 6 +2 years.
7. The intelligent multi-water meter can choose a variety of communication modes, such as NB-IOT. LoRa, LoRaWAN, M-Bus. RS485, pulse and other communication modes, and is equipped with infrared communication mechanism, through which instrument parameters can be configured or instrument data can be read.
8. The intelligent multi-flow meter has the function of long-term data storage, which can realize annual, monthly and daily data storage and recording, which is beneficial for management departments to analyze water consumption big data and make reasonable water consumption decisions.
9. The intelligent multi-flow meter has a water flow direction identification mechanism, which can measure forward and reverse flow, and can adopt a variety of forward and reverse flow statistics and display methods so as to use units for data analysis.
10. The intelligent multi-flow meter has an alarm mechanism for long-term water running (leakage alarm) and an oath reporting mechanism for a single water running exceeding a preset amount, which can timely remind users whether there is water leakage in the household water pipe and whether they forget to turn off the faucet.
11. The intelligent multi-water meter has an empty pipe alarm mechanism, which can be used as an abnormal disassembly alarm after normal water running for a long time.
12. The intelligent multi-flow meter has an error counting (instantaneous excessive flow metering) judgment mechanism. When an error counting occurs, it can alarm in time and record the error time. When an error counting occurs, the MCU software in the meter has an error correction mechanism, which can prevent the occurrence of an error counting to the greatest extent.
13. The intelligent multi-water meter has the function of measuring fluid water temperature, and can give low-temperature or high-temperature alarms so that the management department can deal with them in a timely manner.
14. The combination of intelligent multi-water meter and management system can have a family water care mechanism. When the children of the family are not with the elderly, the community where the children or the elderly are located can know the water habits of the elderly through mobile phone APP, which can give early warning in time.
五、Technical Parameters
|
Caliber |
DN15 |
DN20 |
DN25 |
|
Minimum Flow (Q1) |
0.031 |
0.05 |
0.079 |
|
Common Flow (Q2) |
0.05 |
0.08 |
0.126 |
|
Maximum Flow (Q3) |
2.5 |
4 |
6.3 |
|
Range ratio |
80 |
||
|
Accuracy grade |
Class B |
||
|
Working pressure |
≤ 1. 6MPa |
||
|
Pressure loss |
≤ 0. 1MPa |
||
|
Level of protection |
IP68 |
||
|
Working water temperature |
0 ~ 30 ℃ |
||
|
Communication mode |
Lorawan/NB/GPRS/RS485 |
||
|
Power supply |
3.0 ~ 3.6 V |
||
|
Screen |
LCD8 bits |
||
|
Display Range |
0 m ³ ~ +99999.999 m ³ |
||
六、Product structure and size
| cal | DN15~25 |
| Range ratio | R80 |
| Accuracy grade | Class B |
| Working pressure | ≤1.6Mpa |
| Pressure loss | ≤0.1Mpa |
| Level of protection | IP68 |
| Working water temperature | 0~30℃ |
| Communication mode | Lorawan / NB / GPRS / RS485 |
| Power supply | 3.0 ~ 3.6V |
| Screen | LCD8 bits |
| Display Range | 0m³～＋99999.999m³ |
