Jun 16 2014

Ultrasonic water meter structure, working principle, the main technical parameters and Development

Ultrasonic water meter is the use of ultrasonic time difference principle, electronic water meter using industrial grade electronic components manufacturing and become. Compared with the mechanical water meter has high accuracy, good reliability, wide measurement range, long service life, no moving parts, no need to set parameters, features installed at any angle.

Ultrasonic  Water Meter

Applications:

1, industrial process measurement and control

2, alternative to improve the reliability of mechanical flowmeter measurement.

3, to replace all kinds of pressed high performance flowmeter.

A brief description of ultrasonic water meter:

The initial flow rate is extremely low, the minimum flow rate of 0.01m/s

Ultra low power design, power consumption is less than 0.00055W

Battery can work continuously for 6 to 10 years

Using the ultrasonic sensor, no mechanical moving parts, 10 years of maintenance free design

Ultrasonic water meter can measure the two-way flow

The measurement pipe mould casting, to ensure no leakage

The measurement accuracy of ± 1%, ± 2%, ± 3%.

Ultrasonic water meter technical parameters:

The measuring principle: ultrasonic time difference principle, using low voltage multi pulse transmitting circuit, receiving circuit of double balanced noise suppression.

Test medium: water and Water Meter Mechanism, <10g/l suspended solid content, grain diameter <1 mm, liquid filled pipe.

The diameter range: DN15-1000mm full range of users with different diameter optional

Tube length: designed according to common water meter size

The measurement cycle: the default 3 seconds, 1 seconds to 31 seconds of user selectable.

Applicable temperature: ambient temperature -40 ℃ ~ 80 ℃ (LCD display -25 ℃ ~ 60 ℃)

Accuracy: ± 1%, ± 2%, ± 3% optional

Ultrasonic water meter precision repeatability is better than ± 0.5%:

Sensor: high-temperature wear-resistant ceramic sensor, suitable medium fluid temperature of -40 ℃ ~ 160 ℃

Protection class: IP68, die casting aluminum instrument case, 2 meters underwater work

Output: RS232, 4-20mA, M-BUS, RS485 standard GPRS, CDMA, GSM Short Message optional.

Supply mode: single 3.6V lithium batteries can work 6 years, matching battery can work for more than ten years, the normal working voltage 2.6V

Active 4-20mA power supply (two wire), without the battery can work normally

RS232 output when the host cut electricity, no batteries can work normally

The RS485 output to external 5V supply, without the battery can work normally

http://www.asmeter.com