Metal Tube Rotameter - Measuring Range: Water (20°C) 16 – 150000 l/h, Air (0.1013 MPa 20°C) 0.5 – 4000 m3/h Range Ratio: 10 : 1 (Special type 20 : 1) Accuracy Class: 2.5 (Special type 1.5% or 1.0%) Working Pressure: DN15 – DN50 PN16MPa (Special type 25 MPa), DN80 – DN150 PN10MPa (Special type 16 MPa), Pressure rating of jacket 1.6 MPa Medium Temperature: Normalized type – 80 °C to 220 °C, High Temperature type 300 °C. Lined with FEP type ≤ 85 °C Ambient Temperature: – 40 °C to 120 °C (Remote display without LCD ≤ 85 °C), (Remote display with LCD ≤ 70 °C) Di Electric Viscosity: 1/4” NPT, 3/8” NPT, 1/2” NPT ≤ 5 mPa.s, 3/4” NPT, 1” NPT ≤ 250 mPa.s Output: Standard signal : two-wires system 4 – 20 mA (with HART Communication), Standard signal : three-wires system 0 – 10 mA, Alarm signal : 1. Two-way relay output 2. One-way or two-approach switches, Pulse signal output : 0 – 1 KHz isolated output Process Connection: Standard type : 24 VDC ± 20%, AC type : 220VAC (85 – 265 VAC as Optional) Connection Mode: Flange, Thread, Tri-Clamp Level of Protection: IP65/ IP67 Ex-Mark: Intrinsically safe : EXiaIICT 3 – 6, Exd type : ExdIICT4 – 6