RF card smart water meter

Radio frequency card smart water meter is a new type of measuring instrument that uses a new microprocessor to collect, process, display, and store water volume. Its small size, light weight, low power consumption, high precision, strong anti-interference ability, high reliability, easy installation and use, and replaceable battery are the best ways for the majority of water management departments to achieve intelligent management. It is an ideal choice to enhance the public's awareness of water conservation.

Main technical parameters

nominal caliber	Q3/Q1=100 80, 63, 50	Q4	Q3	Q2	Q1	Mechanical reading		Electronic reading
						Minimum number	Maximum number	Minimum number	Maximum number
mm		M3/h	M3/h	M3/h	M3/h	M3	M3	M3	M3
15		3.125	2.5	0.04	0.025	0.0001	99999	0.1	99999
20		5	4	0.064	0.04
25		7.875	6.3	0.1008	0.063

a、 Overload flow Q4- the maximum flow rate that the water meter can use in a short period of time without damage.
b、 Common flow Q3- the optimal flow rate for water meters under normal operating conditions.
c、 Boundary flow Q2- the flow that occurs when the flow range is divided into two zones.
d、 Minimum flow Q1- the minimum flow rate required to be indicated by the water meter within the maximum allowable error limit.
2. Measurement error:
a. From the low zone including minimum flow to excluding boundary flow: ± 5%.
b. From the boundary flow to the high zone including overload flow: ± 2%.

External dimensions

Specification and model	Total length (L)	Long (L1)	Width (B)	High (H)	Connecting thread	weight
LXSGZ-15E	275mm	180mm	80mm	105mm	G3/4B	2.0kg
LXSGZ-20E	295mm	190mm	80mm	105mm	G1B	2.2kg
LXSGZ-25E	346mm	225mm	104mm	112mm	G11/4B	2.5kg

Product Features

1. Automatic measurement: Measure and subtract the remaining amount and amount in the meter when in use;
2. Intelligent control: When the remaining amount is 0, the valve will automatically close; After recharging, if the remaining amount is greater than 0, the valve will automatically open;
3. Low voltage alarm: When the built-in battery voltage in the meter is lower than the usage value, the alarm prompts to replace the battery;
4. Insufficient remaining amount alarm prompt: When the remaining amount is lower than the set value, the alarm prompts the user to recharge as soon as possible;
5. Anti interference alarm: When external strong magnetic interference affects the measurement accuracy, the valve will automatically close and provide a warning prompt;
6. Multiple rate setting: With multiple rate setting, it can achieve single rate status or be set to multiple rate status;
7. Initialization: After successful communication with the initialization card, the buzzer emits a "beep" sound and displays in full screen. Rolling displays: prompts for overdrawn amount, valve status, and accumulated 0000.00;
8. LCD display prompt: The upper left screen shows the accumulated usage amount; The bottom left screen shows the remaining amount; The right screen displays text prompts such as valve closed, valve open, flow signal failure, valve failure, please recharge, card reading error, second level water volume, third level water volume, and please replace the battery. (Note: The first level water volume, second level water volume, and third level water volume are one way of setting the compound rate.)