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RF card large-diameter intelligent water meter
Introduction: Large caliber intelligent water meter is an instrument used to measure the total water consumption of drinking water flowing through the
Product details
Product Features
PRODUCT FEATURES
Large caliber intelligent water meter is an instrument used to measure the total water consumption of drinking water flowing through the tap water pipeline, which can meet the application needs of a large number of water companies. This product has undergone years of research on large meters and development of high-tech electronic products by our company. It is a high-tech instrument formed by using a microcomputer as the core and a smart card as the transmission medium. It has the characteristics of low power consumption, accurate measurement, and beautiful appearance. Completely eliminating the need for manual meter reading, it provides many guarantees for modern life and has become an important measuring and management instrument for the water supply department and property management department.
Module display content
Module display content
Cumulative: refers to the cumulative amount, which displays how many liters of water the user's water meter has used in total; Remaining: Refers to the remaining amount, which displays how many liters of the user's water meter are still available
Unit: m.3- Water volume unit; When the card swipe is successful, CC will be displayed - Completed
On/off valve: displays whether the valve inside the water meter is in the open or closed state
Please recharge: When the remaining amount of the user reaches below the alarm amount set by the card, it will display 'Please recharge' to remind the user to recharge and purchase water
Fault: When there is valve blockage or card swiping error, E XX fault will be displayed
Power shortage: When the battery voltage is detected to be lower than the minimum limit set in the water meter, it is determined that the battery is out of power and needs to be replaced in a timely manner
Interference: When a magnetic attack is detected in the table, the system will automatically close the valve. Brushing the user card can open the valve. When the interference reaches a certain number of times, the interference symbol will be displayed and the valve will be closed
Year Month Day, Hour Minute Second: When the time is displayed in the table, the corresponding year month day hour minute second symbol will appear on the display content
When swiping the user card, a new amount of water will appear at the end, which is the amount of water purchased last time
instructions
Instructions
1. User account opening: After installing the water meter, if the valve is already open without swiping the user card, the overdrawn water volume of this water meter will be used. When the user swipes the user card for the first time, it indicates that the meter has been opened and the used water volume will be automatically deducted.
2. User purchasing water: The user places the user card that has purchased water into the RF sensing area of the water meter, and the module will display as shown in Figure 1. The display "" indicates that data is being exchanged, and then the new purchase quantity will be displayed.
2. User purchasing water: The user places the user card that has purchased water into the RF sensing area of the water meter, and the module will display as shown in Figure 1. The display "" indicates that data is being exchanged, and then the new purchase quantity will be displayed.
3. Reading method: When the user wants to check their water usage, place the user card in the radio frequency induction area of the water meter to wake it up. At this time, the latest cumulative water usage, remaining water usage, newly purchased water usage and other parameters will be displayed on the LCD screen in sequence.
4. Card swiping error: If the user swipes the card too quickly or places it in the wrong position during the card swiping process, the wrong card character will be displayed followed by cumulative, remaining, and newly purchased water volume. When this situation occurs, users should not worry as it will not cause any losses. Please swipe your card again, as shown in Figure 2
5. Valve closing alarm:
(1) When the remaining water level is insufficient and reaches the alarm water level (set by the management department), the valve will automatically close to remind the user to purchase water in a timely manner. At this time, the user can use their own user card to swipe the card and open the valve to continue using water. When the remaining water level drops to 0, the valve can be opened by swiping the user card to enter the overdrawn state and continue using water (applicable when the management department sets the overdrawn water level). When the overdrawn water level is used up, the valve will automatically close and cannot be opened with the user card. Only after the user purchases water again and recharges it can the valve be opened to continue using water, and the used overdrawn water level will be deducted.
(2) Battery power shortage prompt: When the battery voltage of the water meter is lower than the set value and there is a power shortage, the water meter valve will automatically close. At this time, the user card can open the valve to continue using water. After 48 hours, if the battery has not been replaced, the valve will be completely closed. Only after replacing the battery can the valve be opened. When the battery is out of power, the management department should be notified in a timely manner to replace the battery.
6. Fault prompt: When the valve malfunctions (such as freezing at the valve due to cold weather) or other reasons, a fault prompt will be displayed on the LCD screen, and the management department should be promptly reported for resolution.
7. User card replacement: After the user card is lost, please go to the management department to reissue a new user card.
Appearance description
Outline description
Sketch Map
Nominal diameter DNmm
50
65
80
100
150
Outer diameter of flange Dmm
165
165
200
220
285
Screw hole center diameter Dmm
125
125
160
180
240
Number of screw holes, diameter Z-Φd
4-18
4-18
8-18
8-18
8-22
Total length Lmm
280
280
505
610
770
Installation instructions
Installation instructions
When selecting a water meter, the flow rate of the pipeline should be close to or less than the commonly used flow rate of the water meter, and the diameter of the water meter cannot be determined solely by the diameter of the pipeline.2. When installing a new pipeline, the stones, mud, and other debris inside the pipeline should be removed before installing the water meter to prevent damage or malfunction. Suggest installing a filter.
3. The dial of the water meter should be installed horizontally facing upwards, and the direction of the arrow on the watch case should be consistent with the direction of water flow in the pipeline. A flow straightening device or a straightening straight pipe section should be installed upstream of the water meter, and the length of the straightening straight pipe section should be greater than 5 times the diameter of the water meter.
4. The water meter should not withstand excessive stress caused by pipes, and should be installed on a base or bracket when necessary.
5. Keep the water meter away from the vibration source, as vibration can affect the accuracy of the water meter.
6. Water meters should be protected against exposure to sunlight and freezing.
7. To compensate for errors in the installation of the water meter and facilitate disassembly, it is recommended to install expansion joints with corresponding diameters downstream of the water meter.
For the convenience of water meter maintenance, it is recommended to install valves at appropriate positions upstream and downstream.
9. The water meter data concentrator should be installed indoors or in a location that is protected from rain, frost, and sun.
10. Users of water meters are not allowed to dismantle or install the control parts of water meters or handheld water meters at will. If they encounter problems, they can contact relevant departments for solutions.
Fault symptoms and troubleshooting methods
Fault phenomena and troubleshooting
Wrong card when swiping: Please swipe the card again.
When the valve is displayed as closed: please swipe the card again.
When 'power shortage' is displayed, please request the management department to replace the battery.
When 'Please recharge' is displayed, please go to the management department to purchase water.
When 'interference' is displayed, please notify the management department to investigate the cause.
TECHNICAL PARAMETER
Technical Parameter
Measurement accuracy: Level 2
Pressure loss:<>
Working voltage: 3.6V
Valve opening and closing times:>2000 times
Tested water temperature: 0~30 ℃
Work pressure: 0.02~1.6MPa
Card type: T5557 RF card
|
Nominal diameter |
Overload flow |
Common traffic |
Boundary flow rate |
Minimum flow rate |
|
32 |
12 |
10 |
0.20 |
0.120 |
|
40 |
20 |
16 |
0.32 |
0.200 |
|
50 |
30 |
25 |
2.0 |
0.500 |
|
65 |
48 |
40 |
3.2 |
0.800 |
|
80 |
75 |
63 |
5.0 |
1.25 |
|
100 |
120 |
100 |
8.0 |
2.0 |
|
150 |
300 |
250 |
20.0 |
5.0 |
Maximum allowable error of water meter: including minimum flow rateQ1 to low zone ± 5% excluding boundary flow Q2; Including the high zone ± 2% from the boundary flow Q2 to the overload flow Q4.
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