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1. Designed strictly according to GBT 778.1-2007,ISO-4064,JJG162-2009 standard.
2. Low starting flow rate(Q1), avoid missing the small flow rate.
3. No pressure loss, IP68 of protction leve, suitable for varieties of work environment.
4. High accuracy make the water fees accurate and reliable.
5. No rotate abrasion, long service time.
【A brief description of the Ultrasonic water meter】
Ⅰ:Very low starting flow, the minimum measurable flow rate of 0.01m / s
Ⅱ:Ultra-low-power design, power consumption less than 0.00055W
Ⅲ:Battery-powered can work for more than 6 to 10 years
Ⅳ:ultrasonic sensors, no mechanical moving parts, maintenance-free design 10 years
Ⅴ:ultrasonic meter bi-directional flow can be measured
Ⅵ:measuring tube section mold casting, to ensure that no leakage
Ⅶ:Accuracy ± 1%, ± 2%, ± 3% Optional
【Technical parameters of ultrasonic water meter】
⒈ Measuring principle: Ultrasonic two-channel time difference principle, the use of low-voltage multi-pulse transmitter circuit, double-balanced receiving circuit noise suppression.
⒉ Measuring media: water, sea water, industrial waste water, suspended solids content of <10g / l, particle size <1 mm, liquid filled pipes.
⒊ diameter range: DN15-1000mm whole series of different diameters user-selectable
⒋ pipe length: Size according to ordinary meter design (see below)
⒌ measurement period: Default 1 times / sec, verification status: 4 times / sec.
⒍ Temperature: Ambient temperature -10 ℃ ~ 45 ℃, liquid temperature -0 ℃ ~ 160 ℃
⒎Accuracy: ± 1%, ± 2%, ± 3% Optional
⒏ ultrasonic meter Repeatability: better than ± 0.5%
⒐ Data storage: The EEPROM / FLASH memory parameters automatically record the cumulative flow before 128 512 days ago
⒑ Protection rating: IP68, can work normally underwater 2 meters
11. Local display: two-line display include the cumulative amount of 9, 4 flow rate, as well as prompt and various states and units
12. Communication interface: RS485 standard configuration; USART, infrared optional.
13. Output signal: two isolated OCT or TTL pulse output, 1 two-wire 4-20mA analog output.
14. Power supply: Built-in 3.6V lithium battery can work for more than 10 years / external DC8 ~ 36V DC power supply / two-wire 4-20mA power supply.
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