Accuracy (including nonlinear, hysteresis and repeatability) ≤ ± 0.5%FS (typical), ≤ ± 1%FS (top) Nonlinear BFSL (consistency) ≤ ± 0.5%FS Hysteresis and repeatability ≤± 0.3%FS Zero thermal drift ≤± 0.1%FS/10K (typical) ≤ ± 0.2%FS/10K (top) A full range of thermal drift ≤± 0.1%FS/10K (typical) ≤ ± 0.2%FS/10K (top)1000m3/h Diameter DN6…DN250 Filtering requirements caliber DN10, DN15 filtering particles less than 20 microns Diameter DN20, DN25 filtering particles less than 30 microns Diameter greater than DN32 filtering particles less than 50 microns Electrical specifications (EN60770) Electrical specifications (EN60770) The signal output (with short circuit protection) 4-20mA, pulse, Hart, RS485 The power supply voltage (UB), with polarity protection 24VDC ± 10%, 220VAC The power supply voltage influence degree ≤ ± 0.01%FS/10V Current limit (linear output signal is up to 1.5 times the rated range) 28mA (typical) Load (RL), connected to the 0V RL ≤ (UB-10V) /0.02A[.] Environmental conditions Environmental conditions Sensor temperature range of -20 ℃…80 ℃, -20 ℃…120 ℃ Ambient temperature range (depending on the electrical connection of -40 ℃ ~80 ℃); The environmental humidity ≤ 85%RH (20 ℃) The transport / storage temperature range of -40-85 ℃ The transport / storage temperature range of -40-85 ℃ EMC EN 61000-6-3 (emission) EMC (disturbance) conditions, RF field of 10 V/m, 26 MHz – 2 GHz deviation < 2% FS EN 61000-6-2 Insulation resistance Ω > 100 M (100 V) Power frequency test based on SEN 361503 Seismic stability sine: 15.9 mm-pp, 5 Hz – 25 Hz IEC 60068-2-6 Sine: 20 g, 25 Hz – 2 kHz Sine: 20 g, 25 Hz – 2 kHz Anti impact impact: 500 g / 1 ms IEC 60068-2-27 Free fall: 1 m IEC 60068-2-32 Protection level (degree of protection connector, with matching can be achieved) IP65 Explosive environment Explosion-proof grade Exd IICT6 Mechanical properties Electrical connection terminal Electrical shell material of aluminum alloy The main material of stainless steel Stainless steel impeller material Threaded connection, flange connection
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