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DN80 RS485 OCT Ultrasonic Flow Meter For Central Air Conditioning

Categories Clamp On Ultrasonic Flow Meter
Model Number: ML-E8
Place of Origin: China
MOQ: 1
Price: Negotation
Payment Terms: T/T
Supply Ability: 10000 units per month
Delivery Time: 7-10 working days
Packaging Details: In carton
Velocity range: 0.1m/s~5m/s
Accuracy: ±2%
Output: 4-20mA, OCT, RS485
Data Logger: Daily, Monthly, Yearly Totalizer
Pipe Size: DN10-DN80
Repeatability: 0.8%
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DN80 RS485 OCT Ultrasonic Flow Meter For Central Air Conditioning

Model F8 Ultrasonic Flow Meter with 4-20mA / RS485 / OCT


I INTRODUCTION
The energy meter ML-E8 is specially designed for central air conditioning systems to do cooling and heating measurement.It could measure and charge for cooling and heating.
The energy consumed by the user is calculated by measuring the temperature and flow rate of the chilled water (or hot water) flowing through the pipe.Install an energy meter ML-E8 on the user's inlet pipe and install a temperature sensor on each of the inlet and outlet pipes. The energy is calculated by metering the amount of chilled water (or hot water) flowing through the pipe (ie, the flow rate and pipe size), and the temperature difference between the incoming and return water.

II. SPECIFICATION

ModelML-E8
Velocity Range0.1 m/s ~ 5.0 m/s
Accuracy± 2.0%
Repeatability0.80%
Pipe SizeDN15,DN20,DN25,DN32,DN40,DN50,DN65,DN80
Data StorageDaily, Monthly, Yearly Totalizer
Analog output4~20mA, Maximum load: 600Ω
Alarm outputOCT, Upper and lower limit alarm function (for option)
CommunicationRS485, (MODBUS or MeterBUS for option)
Power Supply24VDC
Cable Length1.8m
KeypadFour light touch buttons
ScreenOLED 128*64 screen display
UnitsMetric and imperial units are available
Cubic Meters(m3), Liters(L),USA Gallons(GAL)/hour, USA Gallons(GAL)/min
Default unit setting: m3/h
TotalizerSix bit digit
Piper MaterialStainless steel pipe, carbon steel pipe, PVC
Case MaterialAluminum alloy
Environment Temp.0℃-50℃
RTD Measuring Temp.2℃-105℃
Medium Temp.0℃-50℃
Environment Humidity0-95% relative humidity, without condensation
IP GradeIP54


III. Working Principle

Ultrasonic flow meters use sound waves at a frequency beyond the range of hearing (typically 0.5, 1, or 4 MHz). This ultrasound signal is sent into a stream of flowing liquid by using wetted (insertion) transducers that make direct contact with the liquid or external (clamp-on) transducers that send the ultrasound through the pipe wall. Clamp-on ultrasonic flow meters allow users to measure the volumetric flow rate of a fluid in a pipe without having to penetrate the pipe which decreases installation and maintenance costs.

A typical transit-time ultrasonic liquid flow meter utilizes two ultrasonic transducers that function as both ultrasonic transmitter and receiver. The ultrasonic flow meter operates by alternately transmitting and receiving a burst of ultrasound between the two transducers by measuring the transit time that it takes for sound to travel between the two transducers in both directions. The difference in the transit time (∆ time) measured is directly proportional to the velocity of the liquid in the pipe.
III. DIMENSION

SizeABCD(mm)
(mm)(mm)(mm)MinMax
DN15258581.5/φ208/φ23
DN202515581.5/φ254.5/φ28
DN2528.518.5581.5/φ324.5/φ35
DN3229.524681.5/φ388.5/φ45
DN403627781.5/φ487.5/φ54
DN504132911.5/φ587.5/φ64
DN6544.535.51021.5/φ6511.5/φ75
DN801.5/φ7611.5/φ86


China DN80 RS485 OCT Ultrasonic Flow Meter For Central Air Conditioning factory
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