RF IC card Intelligent Large caliber prepaid water meter

IC card smart prepaid digital water meter, (can be referred to as: IC card water meter, magnetic water meter, electronic water meter) can be classified to contact smart water meter and non-contact smart water meter, non-contact intelligent water meter, commonly known as: RF card water meter, Card water meter, widely used in the family, apartments, commercial buildings and other household charges of water, hot water use places. Professional magnet stop digital IC card smart prepaid water meter

  Features:
 
1. The large-caliber prepaid cold water meter is a water meter with settlement function composed of a cold water meter with a signaling device as a measurement base meter, a radio frequency card as an information carrier, and a control box and an electric control valve.
2. The large-caliber prepaid water meter uses lithium batteries, no external power supply is required, and low power consumption. The internal lithium battery can be used for more than three years under normal conditions and is not subject to installation conditions.

The main function
1. Display function
Users can display "remaining", "cumulative" and other water usage information by swiping their user card, and can display "ditch water information" when recharging
". At the same time display the valve switch status.
2. Water input limit function
The radio frequency card water meter sets a hoarding limit. When the sum of the water purchased in the user card and the remaining water in the meter is greater than the hoarding limit set,
The water meter does not accept user card recharge operations.
3. Closing valve payment function
When the remaining water volume in the meter reaches the alarm water volume, the valve is automatically closed to remind the user that there is not much water remaining in the meter. At this time, the user card is swiped in the meter and the valve opens. When the remaining water is used up, the valve is automatically closed and the user card cannot open the valve again. The user holds the user card to the water supply management department to purchase water.

IC card smart prepaid digital water meter product features:
Smart IC card water meter:

1. Using non-contact IC card technology, wireless data transmission is used to solve the problems of waterproof, moisture-proof and anti-attack.

2, micro-power technology: Usually power consumption is less than 0.5μA, so that the battery life greatly increased, to ensure the use of more than 6 years.

3, electric suspension ball valve technology: anti-locking, non-fouling characteristics, can achieve low pressure loss, wear, power consumption, anti-rust, anti-blocking effect.

4, automatic valve discharge, anti-blocking, anti-rust technology: valve timing automatically switch action, the effective use of pipeline pressure caused by the instantaneous impulse of water, to achieve automatic valve discharge, to prevent valve rust die, fouling and other phenomena.

5, full seal design: all lines are all sealed with epoxy resin, good sealing.

6, anti-external, magnetic attack technology: When the external power, magnetic attack, the meter will automatically close the valve.

Working conditions:

Flow range:    Q1~Q3 (Q4 short time work not change error)
Ambient temperature:    5℃~55℃
Ambient moisture:    (0~93)%RH
Water temperature:    cold water meter 1℃~40℃, hot water meter 0.1℃~90℃
Water pressure:    0.03MPa~1MPa (short time work 1.6MPa not leak, no damage)
Pressure loss:    ≤0.063MPa
 

Straight pipe length fore water meter is 10 times of DN, straight pipe length behind water meter is 5 times of DN.
Flow direction should be the same as the arrow on the body directs

Work power supply:

The operating voltage of alternating current or direct current shall be in the range of -15% to 10% of the standard voltage and the frequency of AC frequency should be ± 2% of the standard frequency.

Card water meter should add following below requirements:

Work pressure: 3.0V~3.6V
Static operating current: ≤5μA
LCD display range: 00000.0~99999.9
Climate and mechanical environment grade B
Electromagnetic environment class E1 level

Working conditions:
Flow range: Q1~Q3 (Q4 short time work not change error)
Ambient temperature: 5℃~55℃
Ambient moisture: (0~93)%RH
Water temperature: cold water meter 1℃~40℃, hot watr meter 0.1℃~90℃
Water pressure: 0.03MPa~1MPa (short time work 1.6MPa not leak, no damage)
Pressure loss: ≤0.063MPa
Straight pipe length fore water meter is 10 times of DN, straight pipe length behind water meter is 5 times of DN.
Flow direction should be the same as the arrow on the body directs.
Work power supply:
The operating voltage of alternating current or direct current shall be in the range of -15% to 10% of the standard voltage and the frequency of AC frequency should be ± 2% of the standard frequency.
Card water meter should add following below requirements:
work pressure: 3.0V~3.6V
Static operating current: ≤5μA
LCD display range: 00000.0~99999.9
Climate and mechanical environment grade B
Electromagnetic environment class E1 level