Low maintenance cost and easy installation Long lasting performance: No maintenance and repair for 6 years â?¢ Intelligent information can be output by providing advanced statistical data and diagnostic programs â?¢ Maximum tolerance of Class 1 meter: 1% in convection area ( Q2 â?¤ Q â?¤ Q4) 3 % in small area (Q1 â?¤ Q â?¤ Q2) [ SPECIFICATIONS ] * Measuring caliber 25 mm ~ 1,200 mm * Domestic Approval : 50 mm, 65 mm, 80 mm, 100 mm, 125 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm * Composition : Detection unit: Electronic sensor / Conversion unit: input unit, operation unit, output unit, indicator * Accuracy Full Scale: 0.2% (65 mm ~ 250 mm: 1st grade / 50 mm, 300 mm, 350 mm: 2nd grade) * Max. Measureable Flow Rate : 10 m/s * Display unit and contents : Accumulated flow (m3): 9 digit x 1 (forward, reverse, modification available) Instantaneous flow rate (m3 / h): 4 digits, date, time, alarm (battery life and empty pipe) and data logger * Measurement function : Low flow cut off: 0 ~ 9 of maximum flow * Measurement frequency : Battery Type : 1/5 Hz / AC Type : 6.25 Hz * Max working pressure : 1.0 MPa ~ 1.6 MPa * Input : 4 ~ 20 mA pressure gauge signal (Loop Powered Terminal): AC Type * Output : 1 Instantaneous flow rate (4 to 20 mA) 1 - AC Type 2 accumulated flow (O.C Pulse) - Pulse Load 5 ~ 35 V DC / 50 mA (Common for AC & Battery Type) * Liner : Hard Rubber * Electrode Hastelloy C * Housing/Flange : Carbon Steel * Communication and internal memory : RS 485 MODBUS: AC Type / Internal memory: Date, time, instantaneous flow rate, accumulated flow rate, and pressure Memory interval: 5 seconds ~ 24 hours (1 year storage upon 1 minute interval storage) * Power Battery Type : 3.6 V DC (Life span 7 years) / AC Type : 110 ~ 220 V AC * Temperature : Ambient temperature: 20 ~ 60 / Storage temperature: 30 ~ 70 (humidity up to 95%) * Protection class : Detection unit (IP 68) / Converter (IP 65) [ APPLICATIONS ] Water industry / Wastewater treatment industry For more details on quality Korean flowmeters, please feel free to visit http://www.hnl-global.com/flowmeter and contact us.