Endress+Hauser Micropilot S FMR531, Руководство по эксплуатации

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Micropilot S FMR531 with HART/4...20 mA Technical data
E Hauser 83
10.1.4 Auxiliary energy
Ripple HART 47...125 Hz: Uss = 200 mV (at 500
Ω
)
Max. noise HART 500 Hz...10 kHz: Ueff = 2.2 mV (at 500
Ω
)
Electrical connection Housing T 12 with separate terminal compartment.
Load HART Minimum load for HART communication: 250
Ω
Cable entry Cable gland: 2 x M20x1.5
Cable entry: 2 x G½ or 2 x ½ NPT
Supply voltage see Page 26.
Power consumption Max. 330 mW at 16 V, max. 500 mW at 24 V, max. 600 mW at 30 V.
Current consumption Max. 21 mA (50 mA inrush current).
Power supply For stand alone operation recommended via two Hauser RN221N.
10.1.5 Performance characteristics
Note Performance characteristics for instruments that can be calibrated in compliance with OIML R85.
Reference operating
conditions According to OIML R85:
• Temperature = -25 °C... +55 °C (-13…+131 °F)
• Atmospheric pressure
• Relative humidity (air) = 65 % ±15%
• Medium properties: e.g. medium with good reflectivity and calm surface.
• Tank diameter: signal beam hits the tank wall only at one side.
• No major interference reflections inside the signal beam.
Maximum measured error Absolute accuracy: better than ±1 mm
!
Note!
Free space Micropilot S radar gauges typically provide accuracy of ±0.5 mm (2 sigma value).
Depending on the respecitve national gauging regulations, the admissible errors AFTER installation
of the instrument on the tank are ±3 mm (OIML), ±4 mm (API), ....
Proof of accuracy of custody
transfer versions The accuracy of each Micropilot S is established through a calibration certificate that records the
absolute and relative error at 10 equidistant points during the final test. A Laser Interferometer
(Jenaer Messtechnik ZLM 500) with an absolute accuracy of 0.1 mm is used as a reference for the
free space measurements with FMR530, 531 and 533.
For stilling well measurements with FMR532, a NMI / PTB calibrated tape with an absolute
accuracy of 0.25 mm is used. Each Micropilot S is delivered with the PTB and NMi type approval.
Additional initial factory verifications for custody applications are available on demand for radar
instrument Micropilot S.
Maximum fill speed By the first pass trough of measuring range: 100 mm/min., thereafter unlimited.