RF Card Prepaid Water Meter

RF card prepaid water meter is continuous measuring, memorizing and displaying the volume of cold water passing through pipeline

Application:

Radio frequency card prepaid 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

Note: Cubic meter (m3) and U.S. gallon (USG) for option

Working conditions:

Water temperature

≤40°C for cold water meter

≤90°C for hot water meter

Feature:

1. RF card water meter use pre-paid way to achieve the new management mode of "payment first before use"

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

3. Double reading display: mechanical and electronic reading

4. Unique battery protection

5. Stable performance, wide application

6. Low power consumption, long service time

7. Electronic part is vacuum sealed.

8. Anti-jamming andresistexterior magnet interference.

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 standard.

Electrical Technical Data for RF Card Water Meter

Working current	Low voltage protection	Quiescent current	Temperature	Battery voltage	Nominal Pressure	Each pulse signal water volume
<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-15E	15	80	3.125	2.5	50	31.25	0.0005	99999
		100			40	25
		125			32	20
		160			25	15.62
LXWRF-20E	20	80	5	4	80	50
		100			64	40
		125			51.2	32
		160			40	25
LXWRF-25E	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