Portable Type	Handset Type	Fixed Type
Measuring Principle	When the ultrasonic beam is transmitting in the liquid,its transmit time is proportional to the liquid flow.
Application	for continuously measuring the flow of most clear,single and pure liquid which do not have large consistence suspended matter or bubbles.
Linearity	Better than 0.5%
Accuracy	Better than 1.0%
Repeatability	Better than 0.2%
Velocity Range	0~±32m/s
Pipe Materials	Steel,stainless steel,cast iron,PVC,cement pipe and other pipes whose materials are close . Liner are Optional(there can not be the interspace between the liner and the pipe exine)
Pipe Size	S model sensor(with magnetism:50-100mm) M model sensor(with magnetism:50-700mm) L model sensor(no magnetism:300-6000mm)
Sensor Installation Method	Clamp-on
Measured Liquid	water,sea water,acid and alkali,food oil, gas,coal oil,diesel oil,petroleum,alcohol,beer etc.these single and pure liquid which can transmit ultrasonic beam
Ambient Temperature	Convertor:-10-70℃,
Fluid Temperature	Normal sensor:-30 ~ +80℃ High temperature sensor:-30 ~ +160℃(only for Smodel and Mmodel,no magnetism)
Display	2 lines display the instantaneous flow,totalize flow and signal state		2×10LCD display.Display the instantaneous flow and the positive ,negative ,net totalizer flow and velocity etc.
Signal Input	No signal input	No signal input	●4-20mA analog signal input,accuracy 0.1%,can imput pressure,liquid level,temperature and so on. ●PT100 platinum resistor.
Signal Output	RS485		●4-20mA or 0-20mA current signal output ●OCT output (pulse width 6~1000ms,factory setting is 200ms) ●relay can put out positive,negative,net accumulative pulse and the alarm signal. ●RS485 output IP: IP65, IP68
Communication Protocol	MODBUS Protocol
Power Supply	220VAC(Standard) Battery: built-in Ni-MH accumulator which can work for more than 12hours continuously.		220VAC(Standard), 24VDC(optional)
Straight pipe length	Upstream≥10D,Downstream≥5D, Length from pump exit≥30D
Ingress Protection Ratings	Convertor: IP65, Sensor: IP65	Convertor: IP65, Sensor: IP65	Convertor: IP65, Sensor: IP68
Explosion Proof Rating	No explosion proof	No explosion proof	EXdⅡBT4
Crust Materials	Die-casting aluminum	PVC	Die-casting aluminum
Other fuctions	built-in whole thermal printer,which can relize in-time and set-time print	---------------	●Auto-memory the positive,negative,net accumulative flow and heat of former 512 days,former monthes,former 10 year; ●Auto-memory the power-on and power-off time and the flow of former 30times,and also can realize auto and manual adding; ●can read out the datas by MODBUS protocol,self-diagnose to tell the current working state.
	self-diagnose:tell the current working state whether it is normal or not.