点超声波flowmeter与短期交付的

Handhold ultrasonic flowmeter TypePortable TypeHandset TypeFixed TypeMeasuring PrincipleWhen the ultrasonic beam is transmitting in the liquid,its transmit time is proportional to the liquid flow.Applicationfor continuously measuring the flow of most clear,single and pure liquid which do not have large consistence suspended matter or bubbles.LinearityBetter than 0.5%AccuracyBetter than 1.0%RepeatabilityBetter than 0.2%Velocity Range0±32m/sPipe MaterialsSteelstainless steelcast ironPVCcement pipe and other pipes whose materials are close . Liner are Optionalthere can not be the interspace between the liner and the pipe exine)Pipe SizeS model sensor(with magnetism:50-100mm) M model sensor(with magnetism:50-700mm) L model sensor(no magnetism:300-6000mm)Sensor Installation MethodClamp-onMeasured Liquidwatersea wateracid and alkalifood oil gascoal oildiesel oilpetroleumalcoholbeer etc.these single and pure liquid which can transmit ultrasonic beamAmbient Temperature Convertor-10-70,Fluid TemperatureNormal sensor-30 +80 High temperature sensor-30 +160only for Smodel and Mmodel,no magnetismDisplay2 lines display the instantaneous flow,totalize flow and signal state2×10LCD display.Display the instantaneous flow and the positive negative net totalizer flow and velocity etc.Signal InputNo signal inputNo signal input4-20mA analog signal input,accuracy 0.1%,can imput pressure,liquid level,temperature and so on. PT100 platinum resistor.Signal OutputRS4854-20mA 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, IP68Communication ProtocolMODBUS ProtocolPower Supply220VAC(Standard) Battery: built-in Ni-MH accumulator which can work for more than 12hours continuously.220VAC(Standard), 24VDC(optional)Straight pipe lengthUpstream≥10D,Downstream≥5D, Length from pump exit≥30DIngress Protection RatingsConvertor: IP65, Sensor: IP65Convertor: IP65, Sensor: IP65Convertor: IP65, Sensor: IP68Explosion Proof RatingNo explosion proofNo explosion proofEXdBT4Crust MaterialsDie-casting aluminumPVCDie-casting aluminumOther fuctionsbuilt-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 daysformer 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