Photoelectric direct reading remote water meter

Features of photoelectric water meter:

1.Daily work without power,long life service time;

2.Anti-magnetic interference,precise record data;

3.RS485bus transfer,metersecurity, low energy consumption;

4. Adopt Special electric-control ball valve,small friction;

5.Abnormal water-use analyze,prevent possible accident in

Advance;

6.usethe word roundencodingdirectly readwindow value, anti-sabotage, nocumulative error

Parameters :

Nominal Diameter	Class	Overload Flow	Nominal Flow	Transitional Flow	Min Flow	Min Reading	Max Reading
mm		m3/h				m3
15	B	3	2.5	Q3/Q1=80 Q2/Q1=1.6		0.00005	9999
20	B	5	4.0			0.00005	9999
25	B	7	6.3			0.00005	9999

Working Condition:

<1>Base table:

a.Pressure:≤1MPa or 1.6MPa

b.Temperature:for cold water meter 0.1 degree~30 degree

<2>Optical remote sensor:

a.Temperature:-20 degree~+50 degree

　　b.Relative Humidity:10%~93%

　　c.Air Pressure:86kPa~106kPa

Pressure loss:　P<0.063MPa

Measurement Class: A(Accuracy)

The Max permissible error between 0.1degree and degree:

the upper zone(Q2≤Q≤Q4)is ±2%

the lower zone(Q1≤Q≤Q2)is ±5%

Nominal Diameter	Length(L1)	Length(L)	Width(B)	Height(H)	Connecting Thread
	mm				D	d
15	165	259	99	118	G3/4B	R1/2
20	195	299	99	120	G1B	R3/4
25	225	345	104	126	G11/4B	R1

Communication Way:RS485 bus

Max working current:20mA

Average power consumption: (only while meter reading):<50mW