Smart Ultrasonic Water Meter, Model ASN-SU

The Aria Sanjesh ASN-SU Smart Ultrasonic Water Meter delivers R250 accuracy with no mechanical moving parts and outstanding measurement precision. Designed for residential applications and urban water distribution networks, it enables the measurement of very low flow rates, data transmission and logging, leak detection, and remote reading through AMR/AMI systems.

 

 

The ASN-SU operates on an ultrasonic measurement principle based on the transit-time difference of sound waves traveling through the water flow path. This technology provides exceptionally high measurement accuracy and negligible pressure loss without the need for mechanical components, resulting in long service life and stable performance.

Key advantages of this meter include the ability to measure very low water flow rates due to its low starting flow threshold, transmit data and connect to data management and remote reading systems (AMR/AMI), automatically detect leaks and post-meter pipe bursts, and record both consumption data and operational events. The meter is also capable of detecting different types of tampering. These features make the ASN-SU an ideal solution for accurate measurement and intelligent water consumption management in residential and urban applications.

  • Mechanism: Ultrasonic
  • Accuracy Class: R250
  • Compliance: Designed and manufactured in accordance with INSO 19191 and OIML R49 standards
  • Temperature Rating: Operates effectively up to 50°C
  • Body Material: High-grade Brass (CuZn40Pb2)
  • Protection Rating: IP68 (Resistant to dust and water ingress)
  • Power Supply: Integrated Battery
  • Flow Measurement: Capable of measuring both forward and reverse flow
  • Data Logging: Consumption data storage for up to 62 days
  • Event Logging: Stores the last 10 events
  • Security: Capable of detecting various types of meter tampering
  • Leak Detection: Detects leaks and post-meter pipe bursts
  • Connectivity: Data transmission via IoT networks
  • Performance: Long service life with sustained accuracy due to optimized design and the use of high-quality materials in the manufacturing process
  • Low-Flow Sensitivity: Capable of measuring very low flow rates

Nominal Diameter

 Unit of Measurement DN15 DN20 DN25 DN32 DN40
Dynamic Range (R=Q3/Q1) —-

250

Overload Flow Rate (Q4)

 m3/hr 3.125 5 7.875 12.5 20
Permanent Flow Rate (Q3) m3/hr 2.5 4 6.3 10

16

Transition Flow Rate (Q2)

 l/hr 16 25.6 40.32 64 102.4
Minimum Flow Rate (Q1)

l/hr

 10 16 25.2 40 64
Maximum Displayed Volume m3

99999.999
Accuracy Class —

2

Maximum Operating Temperature

 °C 50
Maximum Operating Pressure bar

16

Pressure Loss Class

bar

≤0.63

Installation Orientation

 —

Horizontal/Vertical

Flow Profile Sensitivity Class

U0D0

Dimensions
Meter Length mm 165 190 260 260 300
Threaded Connection — G3/4B G1B G1 ¼ B G1 ½ B

G2B

 

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