RF card water meter
Introduction
An RF card water meter is a smart water meter that uses radio frequency (RF) technology for wireless data transmission. It enables remote monitoring of water usage, prepaid or postpaid billing, and supports contactless recharging via an RF card. This technology improves accuracy, convenience, and efficiency in water management for residential, commercial, and industrial applications.
Features
1.Mechanical and electrical separation facilitates installation and maintenance
2.The liquid crystal display is synchronized with the mechanical part
3.Timing of valve rotation ensures flexibility
4.Applicable to low-density meter metering scenarios
Dimension
Horizontal | DN15 | DN20 | DN25 | |
L | mm | 165 | 195 | 225 |
B | 104.5 | 104.5 | 105.5 | |
H | 123.7 | 125.2 | 130.7 | |
Connection Method | d | R1/2 | R3/4 | R1 |
D | G3/4B | G1B | G1 1/4B | |
Weight | Kg | 1.75 | 1.95 | 2.5 |
Vertical | DN15 | DN20 | DN25 | |
L | mm | 182.5 | 188.5 | 212.7 |
B | 104.5 | 104.5 | 105.5 | |
H | 261 | 271 | 297 | |
Connection Method | d | R1/2 | R3/4 | R1 |
D | G3/4B | G1B | G1 14B | |
Weight | Kg | 2.4 | 3.0 | 3.3 |
Performance parameter
Standby Current (Power Consumption) | <7uA (dormancy) | Temperature class | T30 |
Data Acquisition Method | Reluctance sensing | Pressure rating | MAP16 |
Operating Voltage | 2.8~3.6V | Sensitivity level of flow field | U0/D0 |
Electromagnetic Environment Classification | E2 | Environmental grade | O Level |
Storage Environment | Ambient temperature -25℃~55℃,Relative humidity≤85% |
Flow parameter
Caliber | Q₃/Q₁ | Overload flow Q₄ | Service flow Q₃ | Demarcation flow Q₂ | Minimum flow Q₁ | Minimum reading | Maximum reading |
m³/h | L/h | m³ | |||||
15 | 160 | 3.125 | 2.5 | 25.0 | 15.6 | 0.00005 | 99999 |
125 | 32.0 | 20.0 | |||||
100 | 40.0 | 25.0 | |||||
20 | 160 | 5 | 4.0 | 40.0 | 25.0 | ||
125 | 51.2 | 32.0 | |||||
100 | 64.0 | 40.0 | |||||
25 | 160 | 7.875 | 6.3 | 63.0 | 39.4 | ||
125 | 80.6 | 50.4 | |||||
100 | 100.8 | 63.0 | |||||
Maximum allowable error: low zone (Q1<Q<Q2) maximum allowable error is ±5%; The maximum allowable error for high zone (Q2≤Q≤Q4,) is ±2% | |||||||
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