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Technical parameters of vortex flow meters: Standard in force: Vortex flow meters (JJG1029-2007). Instrument diameter (mm): 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300. Nominal pressure (Mpa): 1.6 Mpa, 2.5 Mpa, 4.0 Mpa (other values can be customized). Accuracy class: Liquids: ±1%; Gases or steam: ±1.5%, ±1%. Range ratio: 1:10； 1:15 ； 1:20 Sensor material: 304 stainless steel, 316(L) stainless steel, etc. Operating conditions for vortex flow meters: Medium temperature: -40°C to +250°C, -40°C to +350°C; Ambient temperature: -20°C to +60°C; Relative humidity: 5% to 90%; Atmospheric pressure: 86 Kpa to 106 Kpa. Signal output options: Pulse signal, 4–20 mA signal. Power supply: A. External power supply: 34 VDC ±15%, with a ripple of ≤±5%; suitable for 4–20 mA output, pulse output, RS485, etc. B. Internal power supply: 1 set of 3.6 V 10 AH lithium batteries; the device can operate normally when the battery voltage is between 2.0 V and 3.0 V. An under-voltage indication appears when the voltage is below 2.0. Communication output functions for vortex flow meters: RS485 communication, HART protocol, etc. Signal connection ports: For the basic model, Hosmann connectors or built-in three-core cables are used ； Explosion-proof type: Internal thread M20*1.5 Explosion protection rating: E*aIICT5 or ExdIIBT6 Protection rating: IP65 or higher (customizable). For more information, please visit the company’s official website at http://www.yb1518.com/. Please retain this link when reproducing the content! http://www.yb1518.com/UploadFiles/20175239314754.jpg