NOTE: Usually we do not ship the liquid ultrasonic Transducer Coupling Agent because of air traffic control, if you have special requirements on gel, please tell us. Introduction of Ultrasonic flow meter: TUF-2000B Flowmeter can be virtually applied to a wide range of long-term online measurement. Convertor protection class IP67,transducer protection class IP98.A variety of liquid applications can be accommodated: ultra-pure liquids ,portable water,chemicals,raw sweage,reclaimed watere,cooling water,river water,plant.etc Performance and Parameter:       Items    Performance &Parameter                                                     Convertor                   Principle    Transit-time ultrasonic flowmeter        Accuracy    ±1%        Display    2x20 character LCD with backlight, support the language of Chinese, English, Italy, Turkish        Signal output    1way 4-20mA output, electric resistance 0-1K, accuracy0.1%        1 way OCT pulse output(Pulse width-1000ms, default is 200ms))        1 way Relay output        Signal input    3 way 4-20mA input, accuracy 0.1%, acquisition signal such as temperature, press and liquid level        Connect the temperature transducer P100, can finish the heat/energy measurement.        Data Interface    Insulate Rs485 serial interface, upgrade the flowmeter software by computer, support the MODBUS.        Special Cable    Twisted-pair cable, generally, the length under 50 meters, select the Rs485, transmission distance can over 1000m                       Pipe Installation Condition    Pipe material    Steel, stainless steel, cast iron, copper, cement pipe, PVC, Aluminum, glass steel product, liner is allowed        Pipe diameter    25-6000mm        Straight pipe    Transducer installation should be satisfied: upstream10D, downstream5D, 30D from the pump.