RFID Prepaid Water Meters – BSI Electronics

Overview

Accuracy Class: B

Available in: 15 mm / 20 mm / 25 mm diameter

Maximum Flow Rate:

Conforms to Standard	ISO 4064 -13: 2005, OIML R49, CJ/T 133-2007
Sizes (Diameter)	15mm, 20mm, 25mm
Thread Connections	15mm: G¾B R½B 20mm: G1B R¾B 25mm: G1¼B R1B
Available in	Hot:	Yes
	Cold:	Yes
Max Flow Rate (Q3)	15mm: 2.5m³/h 20mm: 4.0m³/h 25mm: 6.3mm³/h
Meter Readings Range	0.0001-99999
Accuracy Class	B
Permissible Error:	Q2≤Q≤Q4	In the range 0.1-30°C: ±2 % In the range 30-90°C: ±3 %
	Q1≤Q	In the range 0.1-90°C: ±5%
Working Temperature	0.1-90°C (no freezing temperatures & direct sunlight permitted)
Max Working Pressure	≤10Bar
Max Pressure Loss	≤0.63Bar
Power Supply	Lithium battery
Battery Lifespan	Shown on cover
Working Voltage	3.6V
Working Current	≤10μA
Pulse Resolution	1pulse/0.1m³ (100 Litres)
IP Level	Not stated (fully sealed)
Communication Method	RFID
User Interface	LCD:	For information display
	Buzzer:	For alarm
Main Features	Tag RFID card, on which water credits are loaded, to transfer credits to the meter and to open the solenoid valve.
	An LCD Displays the current purchase volume, remaining volume and usage.
	The valve will shut off automatically when water credits run out, if battery is completely flat or in event of tampering or significant magnetic disturbance.
	Impending low battery, low water credits and magnetic disturbance alarm.
	Meter will periodically execute auto-checks on valve flexibility. As an added benefit, this will prevent battery dormancy.
	Data retention: >10 years (even if battery fails)