Wall-Mount Ultrasonic Flowmeter - Accuracy: ± 1% of reading at rates > 0.2 mps Repeatability: 0.2% Principle: Transmit Time Velocity: ± 32 m/s Pipe Size: DN15 – DN6000 mm Display: LCD with backlight, display accumulated flowheat, instantaneous flowheat, velocity Time and etc. Signal Output: 1 way 4-20 mA output, 1 way OCT pulse output, 1 way relay output Signal Input: 3 way 4-20 mA 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 and etc. Liner is allowed Straight Pipe Section: Upstream : 10D, Downstream : 5D, From the pump : 30D (D means outer diameter) Liquid Types: Water, Sea Water, Industrial Sewage, Acid& Alkaline Liquid, Alcohol, Beer, All kind of Oils Which can transmit ultrasonic single uniform liquid. Liquid Temperature: Standard : -30 °C to 90 °C, High Temperature : -30 °C to 160 °C Liquid Turbidity: Less than 10000 ppm, with a little bubble Flow Direction: Bi-Directional measuring, net flow/ heat measuring Environment Temperature: Main Unit : -30 °C to 80 °C, Transducaer : -40 °C to 110 °C , Temperature Transducer : Select on Enquiry Environment Humidity: Main Unit : 85% RH, Transducer : Standard is IP65, IP68 (Optional) Cable: Twisted Pair Line, Standard length is 5 m, can be extended to 500 m (not recommended), RS485 Interface, Transmission distance up to 1000 m Power Supply: AC220V and DC24V Power Consumption: Less than 1.5W Communication: MODBUS RTU RS485