Items Specifications Accuracy ±1% of reading at rates >0.2 mps Repeatability 0.2% Principle Transmit time Velocity ±32m/s Pipe Size DN15mm-DN6000mm Display LCD with backlight, display accumulated flow/heat, instantaneous flow/heat, velocity, time etc. Signal Output 1 way 4-20mA output 1 way OCT pulse output 1 way relay output Signal Input 3 way 4-20mA input achieve to heat measurement by connecting PT100 platinum resistor Other Functions Automatically record the positive,negative,net totalizer flow rate and heat. Automatically record the time of power-on/off and flow rate of the last 30 times.Replenish by hand or read the datas through Modbus communication protocol. Pipe Material Carbon Steel, stainless steel, cast iron, cement pipe, copper, PVC, aluminum, FRP etc. Liner is allowed Straight Pipe Section Upstram: 10D; Downsteam:5D; From the pump:30D (D means outer diameter) Liquid Types All kinds of clean and pure liquids. Liquid Temperature Standard: -30℃ ~ 90℃ ,High-temperature:-30℃ ~ 160℃ Liquid Turbidity Less than 10000ppm, with a little bubble Flow Direction Bi-directional measuring, net flow/heat measuring Environment Temperature Main Unit: -30℃ ~ 80℃ Transducer: -30℃ ~ 160℃, Temperature transducer: select on enquiry Environment Humidity Main Unit: 85% RH Transducer: standard is IP65, IP68(optional) Cable Twisted Pair Line, standard length of 5m, can be extended to 500m (not recommended); Contact the manufacturer for longer cable requirement. RS-485 interface, transmission distance up to 1000m Power Supply DC24V Power Consumption Less than 1.5W Communication MODBUS RTU RS485