HLS-W312 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: DN50 ~ DN300
● Built-in lithium battery, applicable for the situation 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 Cart Iron
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 If the flow meter without any 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)
DN50 200 0.150 0.315 0.500 63.000 78.750
DN65 200 0.240 0.500 0.800 100.000 125.000
DN80 200 0.380 0.800 1.300 160.000 200.000
DN100 200 0.600 1.250 2.000 250.000 312.500
DN125 200 0.750 2.000 3.200 400.000 500.000
DN150 200 1.000 3.150 5.000 630.000 787.500
DN200 200 1.500 5.000 8.000 1000.000 1250.000
DN250 200 1.500 5.000 8.000 1000.000 1250.000
DN300 200 2.400 8.000 12.800 1600.000 2000.000

 

Error curve

hls w31 error

 

Dimension ( Unit: mm
hls w312 dimension

Size Appearance dimension (mm) Flange dimension (mm) Pressure
(Mpa)
L H1 H2 W1 W2 D D1 d x n Sealing face C
D2 f

DN50

200 70 131 76 95 165 125 18×4 102 2 19

1.6

DN65

200 75 135 79 95 185 145 18×4 122 2 20 1.6
DN80 225 94 132 94 95 200 160 18×8 138 2 20

1.6

DN100

250 104 140 104 104 220 180 18×8 158 2 22 1.6
DN125 275 117 148 117 117 250 210 18×8 188 2 22

1.6

DN150

300 134 155 114 114 285 240 22×8 212 2 24 1.6
DN200 350 165 254 165 165 340 295 22×12 268 2 26

1.6

DN250

450 197 269 197 197 405 355 26×12 320 2 29 1.6
DN300 500 223 287 223 223 460 410 26×12 370 2 32

1.6

 

Wiring terminal of standard configuration

hls w312 wiring

1 2 3 4

485 + (A)

485 – (B) DC8-36V

GND of RS485

Remark: There are terminal tags (1, 2, 3, 4 ) on the electrical connection box.

 

 

 

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 )

Request A Quote

Scroll to Top
Contact Form
request a quote