FLOWSIC610
超声波流量计

氢气计量交接测量

• 测量原理

  Ultrasonic transit time difference measurement

• Measured variables

  Volume a. c., volumetric flow a. c., gas velocity, speed of sound, hydrogen purity (option)

• Measuring Medium

  Hydrogen with purity >95%
  Hydrogen with purity >90% (on request)

• Repeatability

  ≤ ± 0.05 % of the measured value

• Accuracy

  Typical error limits Qt ... Qmax | (Qmin ... Qt):
  ≤ ±0.5 % | (±1.0 %) dry calibrated
  ≤ ±0.2 % | (± 0.5 %)
  After flow calibration and adjustment with constant
  factor. Without uncertainty of the flow test facility.
  ≤ ±0.1 % | (±0.2 %)
  After flow calibration and adjustment with polynomial
  or piecewise correction. Without uncertainty of the
  calibration test facility.

• Min. piping requirements

  ≥DN100 - straight inlet section ≥10DN or ≥2DN+FC+3DN, outlet section ≥3DN
  DN50, DN80 - straight inlet section ≥5DN/FC/10DN, outlet section ≥3DN

• Medium temperature range

  -40 °C…+60 °C / -40 °F…+140 °F
  -40 °C…+85 °C / -40 °F…+185 °F (on request)

• Operating pressure range

  Standard: 15…102.1 bar(g) (217...1,480 psi(g))
  Optional: 7…102.1 bar(g) (102...1,480 psi(g))
  Others on request

• Nominal pipe size

  DN50 … DN400 / 2” … 16”
  Others on request

• Metrological approvals and certificates

  Metrological:
  MID 2014/32/EU Class 1
   
  Explosion protection:
  IECEx/ATEX: IEC 60079, EN 61326-1:2013
   
  Pressure rating:
  ASME: B16.5/B16.47, B36.19/B36.10
   
  For details see operating instructions

• Hazardous area approvals

  IECEx
  Ex db ia [ia Ga] IIС T4 Gb
   
  ATEX
  II 2(1) G Ex db ia [ia Ga] IIC T4 Gb

• Digital Outputs

  4x digital output
  therof 2x as frequency output (10kHz max)

• Digital communication

  Modbus RS-485 (2x)
  Modbus RTU/ASCII
  Blutooth
  USB