RF Card Prepaid Water Meter

RF card prepaid water meter is for measuring volume of hot water which passing through pipeline

Application:

Radio frequency card intelligent water meter is the new measuring instrument employing the microprocessor to realize water collection, processing, display, and reserving. It is the best choice for realizing intelligent control by most of tap water administrative bureaus, ideal for enhancing public awareness of saving water. This meter has many patents. Compared with traditional way, it can control user's overspend by prepaying for an IC card

FEATURE:

1. IC card water meter use pre-paid way to achieve the new management mode of “purchase first, then use ”.

2 .Show the different level price of the water ,one card can be used to several meter.

3. Double reading display: mechanical and electronic reading

4. the unique battery protection

5. Stable performance, wide application

6. Low power consumption, long life time

7. Electronic part is vacuum sealed.

8. Anti-jamming andresistexterior magnet interference.

MAIN TECHNICAL DATA: Water meter temperature grade: T30,T50,T70,T90

                                      Pressure grade:MAP10

                                      Pressure loss grade: P63

                                      Upstream disturbance grade:U5

                                      Downstream disturbance grade:D0

MAXIMUM PERMISSIBLE ERROR:

a) In the lower zone from Q1 inclusive up to but excluding Q2 is ±5%  

b) If the temperature≤30°C, In the upper zone from Q2 inclusive up to and including Q4 is ±2%

c) If the temperature>30°C, In the upper zone from Q2 inclusive up to and including Q4 is ±3%

Note: Technical data conform to ISO4064-1~3:2005IDT

ELECTRIC TECHNICAL DATA for RF Card Water Meter

Working current	power-off protection	Quiescent current	Temperature	Battery voltage	Nominal Pressure	water volume per 1 pulse signal
<20mA	2.4V	<15uA	0.1°C~55°C	3.6V	2.5V~3.6V	100L

FLOW TECHNICAL DATA

Model No	Size	R Flow turndown	Q4 Max Flow	Q3 Nominal Flow	Q2 Transitional Flow	Q1 Min Flow	Min Reading	Max Reading
	mm	Q3/ Q1	m³/h		L/h		m³
LXWRF-15ES	15	80	3.125	2.5	50	31.25	0.00005	99999
		100			40	25
		125			32	20
		160			25	15.62
LXWRF-20ES	20	80	5	4	80	50
		100			64	40
		125			51.2	32
		160			40	25
LXWRF-25ES	25	80	7.875	6.3	126	78.75
		100			100.8	63
		125			80.64	50.4
		160			63	39.37

RF Card Prepaid Water Meter