Pre-payment wate meter contact-type

GALONMETER TM Card Prepaid Water Meter is IMPELLER (turbine) water meter with dry type register (liquid protected register as Option) for residential application with sizes from Dn15 to Dn20 designed by GALONMETER.

OPERATION of the water meter:
Water flows through the meter’s strainer and into the measuring chamber where it drives the impeller. A driving magnet transmits the movement of the impeller to a driven magnet located within the hermetically sealed register. The magnet is connected to a gear train which translates the impeller rotates into volume totalizators displayed on the register dial face.

CONSTRUCTION:
GALONMETER TM Card Pre-paid Water Meter consists of Mechanical Water Meter, Electric Ball valve, Circuit Board (CPU), Battery and TM Card.

PRINCIPLE:
With the signal from the water meter to CPU, the CPU knows the exactly volume of the water pass through the water meter.
When insert the TM card to the water meter, the CPU know immediately the volume of the water can be used, the electric ball valve under the “open” condition.
When the volume used up, the CPU will send the instruction to the electric ball valve to close the valve.

Dimension:

L1: the total length with connection and the gasket without compression.

Main Technical Data:

Working Temperature: 0℃~+40℃
Power: DC3,6V (BY BATTERY)
Operating Current: <10mA
Quiescent Current: <15uA
Power-off Protect: 3V
CPU working Temperature: -10℃~+50℃
Date Protection: >10years

TM CARD     
Max. Permission Error (for T30):
From Q1 inclusive up to but excluding Q2 is ± 5%; From Q2 inclusive up to and including Q4 is ± 2%;

Main Function:
Q1 Q2    Q3 Q4

Cryptographic Function: Automatically identify the password of the TM Card;
Prepaid Function: Pay at first;
Notification Function: the remind volume less than the setting volume, LCD show the alarm code;
Cut-off Function: the remind volume is “0”, the valve cut-off;
Power off protection Function: the power is less than 3V, the valve closed, and all the date automatically saving;
Magnetic   Protection   Function:   Valve   automatically   closed   with   outside stronger magnet interference, with magnet removing, valve open again;
Date Setting: through the TM Card can set the “overdraft”;
Easy to change the Battery.

LCD with the Function as:

The LCD will display as turn with the information:
Total Volume: Show as “Total V” - The total volume of the water pass through the water meter;
Current Volume: Show as “Current V” – The current purchase volume; Remain Volume: Show “Remain V” – the remaining volume of the water.