Lorawan Wireless Smart Cold Water Flow Metter 868MHz-915MHz

No.

Function name

Function brief introduction

Function parameter

1

Measurement

Using multiple signal sources combination to calculate technic and software anti-interference technology, can check the true  and false of the signal

2

Meter number management

The only identify number of each meter, can only be modified by specialized machine

14 decimal numbers:

000000000000-999999999999

3

Meter base number management

If the water meter has a mechanical counter, the electronic readings and mechanical readings should be consistent.

0000.0000 cube-9999.9999 cube

4

Correction time

Correct anytime without leap year

2000 year~2100 year,

Minimum correction to seconds

5

Reading on assigned day

Save measurement data for a specified day

6

Failure testing

Alarm when strong magnetic interference or short-circuited on sampling line

7

Battery voltage detection

Alarm when the battery voltage reaches the lower limit

The lower limit is based on voltage value, generally lower 0.2~0.4V than battery voltage

8

Remote diagnosis

Meter reading,battery voltage,specified day reading,Failures,Valve Status,balance,Magnetic interference status

remote diagnosis available whenever necessary

No.

Name

Parameter

Remarks

min

Typical examples

max

unit

1

Main power

+2.7

+3.6

+3.7

V

2

Under-voltage point of the battery

3.1

3.4

V

3

Quiescent working current

9

20

uA

4

Working current while transmission

15

mA

5

Continuous communication intervals

6

year

2.2Ah battery,the remain energy is more than70% after six years

6

Traffic rate

2400

bd

7

Communication distance

500

m

Related to loaded amount

8

Normal working temperature

-10

50

ºC

No LCD

9

Storage temperature

-20

60

ºC

10

Humidity

85%