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Ultrasonic water mete-DN15-DN40

technical parameter

Parts

Nominal diameter

Starting flow rate

Minimum flow rate

Transition flow rate

Nominal flow rate

Overload flow rate

DN(mm)

L/h

Q1L/h

Q2L/h

Q3m³/h

Q4m³/h

DN15

15

1.5

10

16

2.5

3.125

DN20

20

2.5

16

25.6

4

5

DN25

25

4

25

40

6.3

7.87

DN32

32

6

40

64

10

12.5

DN40

40

8

64

100

16

20

Accuracy   class

Class 2

Dynamic rangeQ3/Q1

160:1/250:1

Nominal   pressure

1.6Mpa

Water temperature

T30 /T50 /T70

Ambient temperature

-20℃~55

Ambient   Class

Fulfils OIML R49 Class C

Electromagnetic   environment

Class E1

Battery   Lifetime

3.6VDC lithium batteries, up to 8years(one cell),up to 15years(two   cell).

Pipe section

Copper/Stainless steel/Plastic

Interfaces

OpticalM-BUS, Sub-GLoraNB-IoT (selected)

Data storage

36 moths data storage.


Product features

1、The initial flow is small, the flow turn-down is wide.
2、No mechanical parts, no wear, long service life.
3、 The temperature is derived from the inverse algorithm, reducing the temperature sensor, the structure design is more compact.
4、 Store the last 36 months of historical data; with a power-down monitoring circuit, power can be stored immediately when the current data to prevent data loss.
5、 Support for IR, M-BUS output interface, remote meter reading can be achieved, user-centralized control and management.
6、Add the voltage monitoring function, 3.3V voltage detection circuit, alarm when the battery voltage dropped to 3.3V.
7、 Working years should be greater than 8 years.
eg: a 18505(3600 mAH) battery, 80% quantity of electric charge calculation:
work life = 2880/0.04=72000 hours, about 8 year!