Zhuhai Huiyue Technology Co., Ltd
Zhuhai Huiyue Technology Co., Ltd
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Introduction:
The photoelectric direct- -reading remote water meter uses the wireless radio frequency technology to realize wireless data transmission. It is mainly composed of a wireless module and a photoelectric direct-reading remote water meter. The water meter and the electronic module are produced separated and the dry and wet methods are separated to improve the product quality, there’s no communication wire connection, thus the water meter is applicable to various environments, the user' s water consumption can be monitored, the running state of the pipe network can be analyzed, maintenance and replacement can be easily performed, and the electronic module can be separated from the water meter to be replaced with a new one.
Product features
1. Zero reading error.
2. Low power consumption and low failure rate
3. Highly reliable data encoding and verification technology
3. Rotor-type metering structure, with high metering accuracy, convenient meter reading and beautiful appearance;
4. Comply with the "Electronic Remote Water Meter" standard (CJ/T 224-2012)
5. Flow performance complies with GB/T 778.1~5-2018 standards, and the accuracy level is Class 2
6. Compatible with multiple communication protocols: DL/T645, CJ/T188, internal protocol, user-specified protocol
7. Comply with the electromagnetic compatibility design requirements of electronic products such as EMC, ESD, EMI, etc.
8. Cooperate with the remote automatic meter reading management system to realize meter reading and monitoring automation
Technical Parameters
| Product model: | LXSY-15 ~ 40E | ||
| Working voltage: | M-BUS: DC 36V | RS-485: DC 12V | |
| Working current: | M-BUS: | Meter Reading Current≤10.0mA | |
| Static operating current≤1.5 mA | |||
| RS-485: | Meter Reading Current≤5.0mA | ||
| Ambient temperature: | 0.1 ℃ ~ + 55 ℃ | ||
| Relative humidity: | 0 ~ 95% RH | ||
| Temperature rating: | T30 (cold water) | T90 (hot water ) | |
| Working pressure: | 1 MPa | ||
| Pressure loss grade: | ∆p63 | ||
| Communication with host: | M-bus, RS-485 bus | ||
| Communication rate: | 1200/2400/4800/9600bps | ||
| Communication protocols: | DL/T645, CJ/T 188,internal protocols, or user customization | ||
| Max communication distance: | 300m | ||
| Short-circuit current protection: | Yes | ||
| Bus PIN ESD protection: | over 10 kV | ||
| Storage temperature: | -25 ℃ ~ + 65 ℃ | ||
| Bus open circuit, short circuit, idle and other fault protection | Yes | ||
| Accuracy rating: | Class 2 | ||
Flow Parameter
| Model | Nominal | Q3/Q1 | Overload | Normal | Boundary | Minimum |
| LXSY-15E | DN15 | 160 | 3.125 | 2.500 | 0.050 | 0.025 |
| LXSY-20E | DN20 | 160 | 5.000 | 4.000 | 0.080 | 0.040 |
| LXSY-25E | DN25 | 160 | 7.875 | 6.300 | 0.128 | 0.063 |
| LXSY-32E | DN32 | 160 | 12.500 | 10.000 | 0.200 | 0.125 |
| LXSY-40E | DN40 | 100 | 20.000 | 16.000 | 0.320 | 0.200 |
NOTE
Maximum allowable error:
1. The maximum allowable error of high zone flow rate (Q2≤Q≤Q 4) is ± 2% when the water temperature range is 0.1 ℃ ~ 30 ℃. When the water temperature is higher than 30 ℃, the maximum allowable error of ± 3%
2. The low zone flow rate (Q1≤Q ≤Q2) is ± 5% , regardless of the water temperature range.