Smart Water Digital Meter
LXZ3 is a remote valve control photoelectric direct reading smart water meter, measuring the cold potable water for residential application in sizes 15mm-40mm for cold water.
Features
* Adopting M-BUS or RS485 communication mode.
* Electronic parts are separately sealed, and the water proof can be IP68.
* Highest accuracy, lowest error, low starting flow rate.
* Multi jet dry type water meter.
* Magnetic drive, lower transmission resistance, frog-resistant. * Magnetic shield, for external magnetic field protection
* Low power consumption.
* Being stable and reliable by the "position identification" characteristics of photoelectric and microelectronic technology.
* Automatic reading and management.
* Each meter has an unique location number, easy wire construction.
* The valve can be shut on and off remotely by a management software.
Standard Compliance
Technical data conforms to ISO 4064 Class B, Class C, R80, R100, R125 or R160 standard for horizontal installation.
Optional Features
* Meter body: Brass and iron for selecting.
* Communication interface mode: RS485 interface or MBUS interface (optional)
* Communication transmission rate: 1200bps, 2400bps, 4800bps or 9600bps (optional)
*Communication specification: CJ/T188-2004 agreement, DL/T645-2007 or MODBUS Agreement (optional), or a special agreement to be made to order.
Working Conditions
*Power Supply: DC 9-24V (RS485 interface) and DC24-42V(MBUS interface);
* Humidity: 0~95% RH
*The distance between data collector and meter: ≤300m;
* Power consumption: ≤1uA (Static Working Current); ≤12uA (instant current during remote reading)
* Water temperature: ≤50ºC for cold water meter
* Water temperature: ≤90ºC for hot water meter
* Water pressure: ≤1MPa or 1.6MPa optional (10bar or 16bar optional)
Installation requirements
*The meter should be installed in vertical position with the direction of the flow as indicated by the arrow cast in the meter body with the register face upwards.
*Pipeline must be flushed before installation.
*The meter should be constantly full of water during operation.
Maximum Permissible Error
In the lower zone from Qmin(Q1) inclusive up to but excluding Qt (Q2) is ±5%.
In the upper zone from Qt(Q2) inclusive up to and including Qmax(Q4) is ±2%(cold water meter).
In the upper zone from Qt(Q2) inclusive up to and including Qmax (Q4) is ±3% (hot water meter).
Accessories
Each water meter has one set couplings optional: 2pcs tube, 2pcs nut and 2pcs gasket.
MAIN TECHNICAL DATA According to ISO4064 :2003 (Old Standard)
| Size | Inch | Class | Qmax | Qn | Qt | Qmin | Min reading | Max reading |
| Maximum flow | Nominal flow | Transitional flow | Min flow | |||||
| DN(mm) | m³/h | L/h | m³ | |||||
| 15 | 1/2" | B | 3 | 1.5 | 120 | 30 | 0.00005 | 99999 |
| C | 22.5 | 15 | ||||||
| 20 | 3/4" | B | 5 | 2.5 | 200 | 50 | 0.00005 | 99999 |
| C | 37.5 | 25 | ||||||
| 25 | 1" | B | 7 | 3.5 | 280 | 70 | 0.00005 | 99999 |
| C | 52.5 | 35 | ||||||
MAIN TECHNICAL DATA According to ISO4064:2014 (New Standard)
| DN | Mm | 15 | 20 | 25 |
| SIZE | Inch | 1/2" | 3/4" | 1" |
| Q4(m³/h) | 3.125 | 5 | 7.875 | |
| Q3(m³/h) | 2.5 | 4 | 6.3 | |
| R80 | Q2(L/h) | 50 | 80 | 126 |
| Q1(L/h) | 31.25 | 50 | 78.75 | |
| R100 | Q2(L/h) | 40 | 64 | 100.8 |
| Q1(L/h) | 25 | 40 | 63 | |
| R125 | Q2(L/h) | 32 | 51.2 | 80.64 |
| Q1(L/h) | 20 | 32 | 50.4 | |
| R160 | Q2(L/h) | 25 | 40 | 63 |
| Q1(L/h) | 15.62 | 25 | 39.37 | |
| Min reading(m³) | 0.00005 | 0.00005 | 0.00005 | |
| Max reading(m³) | 99999 | 99999 | 99999 | |
| Max pressure(MAP) | 16 | 16 | 16 | |
| Max loss(ΔP) | 63 | 63 | 63 | |
| Max temperature | T50 | T50 | T50 | |
Dimensions and Weight
| Meter Size | L | L1 | Width B | Height H | Connecting Thread | Wire Length |
| mm | D | m | ||||
| 15 | 258 | 165 | 85 | 120 | G ¾″B | 1 |
| 20 | 298 | 195 | 85 | 120 | G 1″B | 1 |
| 25 | 345 | 225 | 97 | 130 | G 1 1/4″B | 1 |
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