AIMEI UWM Ultrasonic Water Meter Installation Guide
- June 13, 2024
- AIMEI
Table of Contents
AIMEI UWM Ultrasonic Water Meter Installation Guide
TECHNICAL SPECIFICATIONS
General Information
UWM is used in residential applications for water metrology and process control. Designed to realize the future of automatic meter reading (AMR) and IoT data collection. Read this manual before installing the meter. More details refer to Data sheet.
Features
- Brass/Plastic Body
- High Metrology Accuracy: Up to R800
- Extremely Low Start Flowrate: 2L/h
- No Measure of air
- Leakage Detection
- Reverse Flow Alarm
- IP 68 , UV-Resistance
- Battery Life Time:Up to 16years
- AMI&AMR Embedded and Standard Wireless LoRa Protocol
Compliance With Standard
- MID DIRECTIVE 2014/32/EU
- OIML R 49 2013
- FCC CFR PART 15
- Compliance to potable drinking water (ACS/WRAS
- RoHs DIRECTIVE 2011/65/EU
- WEEE DIRECTIVE 2019/19/EU
Working Condition
Water temperature: ≤50℃
for Cold Water Meter:
Pressure: ≤1.6Mpa
Mechanical:
Environment: M1
Electromagnetic:
Environmental Class: E1/E2
Climatic Environment: O
Max Permissible Error
a) In the lower zone from Q1 inclusive up to but excluding Q2: ±5%
b) In the upper zone from Q2 inclusive up to and including Q4: +2%
Specifications
Type| Size
(nine)
| Q3| Q3/Qi| Q2/Qi| Parameters
IL
---|---|---|---|---|---
UWM| 15| 2.5m3/
h
| R160-
R800
| 1.6| Protection
Class: IP68
Installation:
Any Position
Sensitivity:
I TODO
0
t.N| 1.0n13/
li
INSTALLATION REQUIREMENTS
Dimension
Type| Size (mm)| L (mm)| E (mm)| A (mm)| C
(mm)| Connection Thread
---|---|---|---|---|---|---
D| d
UW M| 15| 110-190| 97| 81| 88| G
3/4B| R 1/2
20| 110-190| 97| 81| 93| G 1B| **** R 3/4
Use the couplings, coupling nuts and gaskets to connect the water meter with the water pipe in both end
The meter must be installed with the water flow direction same as the arrow
indicated on the meter body (see following drawing)
Installation Statement
a) The nominal diameter of water meter should be selected according to
the volume of water passing through the pipeline.
b) Attention should be paid that cold water meter must not be used for
hot water and caustic liquid.
c) Installation in the direct sunlight should be avoided to prevent
extreme conditions where the temperature is too high to affect the function.
For outdoor installation, it is recommended to be at least 0.3m above the
ground to ensure the wireless communication. d)In order to keep the water
meter in good working condition, the pipeline should be clear up before
installing the meter.
e) The valves should be installed in front and back of the water meter.
f)During the service time, keep the water meter lid closed. Keep the surface
of the register clean to make clear reading during the long time service
g) Ensure that the water supply line is kept operating under full pipe
conditions
h) Ensure that the minimum pressure at the back end of the gauge is 0.03
MPa
Verification Process
Calibration:
- Place the water meters on the test bench, start water flow and wait until there is no air in the pipe. Then stop water flow.
- Read the initial index of tested water meters, make a flow rate (Q3/Q2/Q1) and when related water magnitude has been passed, stop water flow.
Then reading final index of tested water meters. And calculate relative index error of tested water meters with following formula:
I(Vf-Vi)-Vr / Vr
Vi: Initial index of the water meter
Vf: Final index of the water meter
Vr: Real volume (measured by the reference device)
Note: with automatical test table, there is no need to read initial and final index
Sealing:
The sealing mark will be one of followings:
ATTENTIONS
Customer Attentions
- Damages and defects which take place during the loading , unloading and transport after the product is delivered to the consumer.
- In the event that there are alterations on the guarantee certificate ,the orginal serial number on the product is removed or altered.
- Damages and defects caused by use errors.
- Defects in the meters which are not protected by the negative effects of the external atmospheric conditions ( mechanic impact,rain and dust,freezing,direct sunlight)
- Defects caused by the foreing objects in the installation
- Meters with removed seals are not covered by guarantee.
The Repairs Of The Defect Not Covered By The Above Mentioned Guarantee Are Done With Charg
Maintenance
There is an obligation of maintenance and calibrations at regular intervals at the repair and calibration stations authorized by the Ministry department. And the repaired and maintened water meter should be tested again according to the standard flow rate listed in the Main Technical Data before reinstalled.
FCC Statement
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1)This device may not cause harmful interference, and (2)This device must accept any interference received, including interference that may cause undesired operation
NOTE: AIMEI is not responsible for any radio or TV interference caused by unauthorized modifications or changes to this equipment. Such modifications or changes could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Federal Communication Commission (FCC) Radiation Exposure Statement
When using the product, maintain a distance of 20cm from the body to ensure compliance with RF exposure requirements.
Manufacturer
Address:
68, West Town Road, Shangtian Town, Fenghua, Ningbo, Zhejiang, 315511, China
Call: +86-574-59517708
Email: aimei@chinaaimei.com
Web: www.asmwatermeter.com