HLS-W311 Ultrasonic Water Meter ( battery powered )

HLS-W311 Ultrasonic water meters are widely used in the industry of urban water supply, water resource management, agricultural irrigation, garden management.

Product Description

Features

● Ultra-low power consumption, stable property
● Range ratio: R 200 ,   Size: DN15 ~ DN40
● Built-in lithium battery, applicable for the situation that power supply  is not available.
● External power supply of 8- 36 V DC can be connected to support analog current output or communication.
● Weatherproof: IP68, after using glue sealing the wiring joints, the flow meter can be immersed in the water for long term to work, but the immersive depth shall not exceed 2 m.
● Capacitive sensing operation button ( not open the transmitter cover to operate buttons)

 

Display

 

hls w31 display

Technical data
Executive standard ISO 4064-2005, GB/T 778-2007, JJG 162-2009
Fluid Water, waste water, sea water (meter tube must be fully filled with fluid)
Operation temperature 0.1 ~ 30℃ (for cold water),   0.1 ~ 100 ℃ ( for hot water)
Operation pressure 1.0 Mpa, 1.6 Mpa
Ambient condition Temperature: -10 ~ 45℃;  Humidity: ≤100% RH
Sensitivity level of upstream flow field U3
Sensitivity level of downstream flow field D0
Electromagnetic compatibility level E2
Meter tube Material Brass
Output signal One-way 4-20mA, Two-way OCT or TTL (optional),
Communication RS485 (optional)
Weather-proof IP68, after using glue sealing the wiring joints, the flow meter can be immersed in the water for long term to work, but the immersive depth shall not exceed 2 m.
Local display Double line, one line (4-digits) display instant flow rate, another line(9 digits) display accumulative flow.
Memory EEPROM / FLASH storage
Measuring cycle 1 time / second
Power supply Built-in 3.6V 19AH Lithium battery (Standard configuration)
External power supply DC 8 – 36 V (for 4-20mA output or communication)
Power dissipation In case of no output, the Built-in Lithium battery can support flow meter continuously working for about 6 years.

 

Flow rate range
Size Range ratio
(R)
Flow rate ( m3/h )
Startup flow Minimum flow (Q1) Transitional flow (Q2) Permanent flow (Q3) Overload Flow (Q4)

DN15

200 0.003 0.0125 0.020 2.500 3.125

DN20

200 0.0035 0.016 0.026 3.200 4.000

DN25

200 0.007 0.020 0.032 4.000

5.000

DN32 200 0.010 0.032 0.050 6.300

7.875

DN40 200 0.015 0.100 0.160 20.000

25.000

 

Error curve

hls w31 error

 

Dimension ( Unit: mm

hls w311 dimension

Size Appearance dimension Thread connection Effective
Thread
length
Pressure
Rating
(Mpa)
L H1 H2 W1 W2

DN15

165 14 129.5 58.5 64.5 G 3/4B 12 1.6

DN20

190 17.5 131.5 58.5 64.5 G 1B 13 1.6

DN25

160 22 134 58.5 64.5 G 1-1/4B 13

1.6

DN32 180 25 136.5 58.5 64.5 G 1-1/2B 14.5

1.6

DN40 200 33 141 58.5 64.5 G 2B 16

1.6

 

 

FAQ

Answer : Please send your question or enquiry to our email: sales@hginstrument.com, we will forward the questions to the related engineer.

Answer :  Please communicate with the sales about the return procedure before returning product.

Answer :  The delivery time depends on the order quantity and product specification.  If the product’s specification is conventional ( not special ),  delivery time is 5 or 7 working days for order quantity ≤ 10 pieces;  delivery time is 2 or 3 working weeks for order quantity 15 ~ 30 pieces. 

Answer :  by Courier,  by Sea or by Air

Answer :  Yes,  Generally warranty is one year.

Answer :  From year 2015  to year 2021,  average annual sales is RMB 350 million ( about USD 54.7 million )

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