HOW TO USE
NB-IoT clap-on water
meter is used for measuring water flow rate through pipe via wireless NB-IoT network
uploading water consumption. Base meter and electronic module can be completely
separated for future maintenance and upgrade on site.
Water meter
will be timed uploaded data at 1 o’clock by default. These data
including frozen accumulated water consumption of the previous day, real-time accumulated water consumption, signal
value, battery voltage and so on. And If it is fails, water meter will automatically replenish the data in the
next cycle.
FUNCTIONS
1. Clap-on
structure:
The
base
meter and electronic module can be completely separated for future maintenance
and upgrade.
2. Magnetic
reluctance sampling:
Imported
precision
sampling sensor, one equivalent per 0.01m3
3. Alarm
function: Water
meter
will automatically alarm when battery voltage is low and strong magnetic attack
occurs.
4. Infrared
communication function: Handheld
unit
enables data querying and setting.
5. Timed
upload function: The data will be uploaded at 1 o’clock by
default.
6. Storage
function: Water
meter can store frozen data for 12 months continuously.
TECHNICAL PARAMETERS
|
Caliber(DN)
|
15mm
|
20 mm
|
25 mm
|
|
Overload Flow Rate
(Q4)
|
3.125 m3/h
|
5 m3/h
|
7.875m3/h
|
|
Common Flow Rate (Q3)
|
2.5 m3/h
|
4.0 m3/h
|
6.3m3/h
|
|
Transitional Flow Rate
(Q2)
|
0.04 m3/h
|
0.064 m3/h
|
0.1008m3/h
|
|
Minimum Flow Rate (Q1)
|
0.025 m3/h
|
0.04 m3/h
|
0.063m3/h
|
|
Measurement Range
(Q3/Q1)
|
100
|
|
Minimum Reading
|
0.0001 m³
|
|
Maximum Reading
|
99999.9999 m³
|
|
Accuracy
|
0.01
m³
|
|
Working Temperature
|
Cold water meter :0.1℃～30℃；Hot water
meter :0.1℃～90℃
|
|
Battery
|
3.6V disposable
lithium batteries
|
|
Environment Temperature
|
-25℃～70℃
|
|
Communication Method
|
NB-IoT communication;
infrared communication
|
|
Maximum Working
Pressure
|
1 MPa
|
|
Maximum Allowable Error
|
Q1≤Q＜Q2 Error≤±5%；Q2≤Q≤Q4 Error≤±2%
|
|
Level of Pressure Loss
|
△p63
|
|
Accuracy Class
|
Class 2
|
|
IP Degree
|
IP68
|
|
Flow Section
Sensitivity Level
|
U10，D5
|
|
Environment Safe Class
|
B
|
|
EMC Level
|
E1
|
INSTALLATION
1. Water meter installation should be complied with GB/T778.5 installation requirements.
2. It is suggested to install the filter in front of the ultrasonic water meter and install the valve in front of the filters to facilitate the maintenance and cleaning of the filters.
3. Wash the pipe before installation to avoid threads, tones or other sundries in the pipeline from causing malfunction of the meter.
4. Water meter should be installed horizontally (display face up).
5. Please leave enough space for repairing, and install according to water flow direction on the pipe.
6. Please do not apply too much force when connecting the ultrasonic water meter and pipe, to avoid damaging the meter body and causing water leakage.
7. Please do not knock the meter shell violently or cause strong vibration during installation, in case of damaging the equipment.
DIMENSION
|
Caliber
|
L1（mm）
|
L2（mm）
|
L3（mm）
|
H（mm）
|
W（mm）
|
D（mm）
|
|
DN15
|
165
|
255
|
14
|
142
|
90
|
R1/2
|
|
DN20
|
195
|
295
|
16
|
142
|
91
|
R3/4
|
|
DN25
|
225
|
341
|
18
|
147
|
94
|
R1
|
MAIN TECHNIQUES
1. NB-IoT
technique:
Signal
network
depth coverage (underground installation and piping well all can work normally).
2. Micro-power
technique:
Timed
detection technology, water meter
quiescent current is not greater than 10μA.
3. Micro-computer
and micro-storage technique：Highly
integrated
and highly reliable.
4. Totally
sealing design：All
of
the circuits are sealed by polyurethane, there is no exposed electrode, and can
be used in humid environment.
5. Data
encryption:
Data
transmission
adopts 128-bit advanced encryption standard, AES-128 encryption and decryption
algorithm.
PRODUCTS
E-mail:export@suntront.com
