Micropilot S FMR532

Summary

Product identification

• Product Name: Micropilot S FMR532
• Type: Level transmitter for continuous and non-contact precision level measurement.
• Application: Custody transfer and inventory control applications. Meets OIML R85 and API 3.1B requirements. The FMR532 with planar antenna is suited exclusively for stilling well applications with measuring ranges up to 38 m (125 ft).

Operating limits

• Ambient temperature range (Standard): -40 °C to +80 °C (-40 °F to +176 °F)
• Ambient temperature range (Custody transfer): -25 °C to +55 °C (-13 °F to +131 °F)
• Storage temperature: -40 °C to +80 °C (-40 °F to +176 °F)
• Process temperature range: -40 °C to +150 °C (-40 °F to 302 °F)
• Process pressure limits: 0 to 25 bar (0 to 375 psi)

Feed water

• Dielectric constant: r  1.4

Product water

• Measuring range (FMR532 ≥ DN150, Stilling well/Bypass):
  • Media group A (DC r = 1.4 to 1.9): 38 m (125 ft)
  • Media group B (DC r = 1.9 to 4): 38 m (125 ft)
  • Media group C (DC r = 4 to 10): 38 m (125 ft)
  • Media group D (DC r > 10): 38 m (125 ft)
• Max. measuring range with custody transfer approval:
  • NMi: 25 m (82 ft)
  • PTB: 30 m (98 ft)
• Blocking distance: 1 m (3.3 ft) from flange (for stilling well/bypass)
• Maximum fill speed: 100 mm/min during the first pass through the measuring range, thereafter unlimited.

Performance characteristics

• Precision (2σ value): 0.8 mm (0.03 in)
• Maximum measured error (Absolute accuracy): Better than ±1 mm (0.04 in)
• Maximum measured error (OIML, API, installed): ±3 mm (0.12 in)
• Resolution (Digital): 0.1 mm
• Resolution (Analog): 0.03 % of measuring range
• Settling time (Typical): 15 sec
• Hysteresis: 0.3 mm (0.01 in)
• Non-repeatability: 0.3 mm (0.01 in)
• Reaction time: Min. 1 s (depends on parameter settings)
• Long-term drift: Within specified accuracy.
• Influence of ambient temperature: Within specified accuracy according to OIML R85.
• Inventory control versions accuracy: ±3 mm (0.12 in) under reference conditions.

Electrical

• Output signal: 4-20 mA (invertible) with HART protocol
• Min. load for HART communication: 250 
• Supply voltage (Standard): 16 V to 36 V DC (20 mA)
• Supply voltage (Ex): 16 V to 30 V DC (20 mA)
• Signal voltage (Ex): 11.5 V to 30 V DC (4 mA or 20 mA)
• Power consumption: Max. 330 mW at 16 V, max. 500 mW at 24 V, max. 600 mW at 30 V, max. 700 mW at 36 V
• Current consumption: Max. 21 mA (50 mA inrush current)
• Ripple HART: 47 to 125 Hz: Uss = 200 mV (at 500 )
• Max. noise HART: 500 Hz to 10 kHz: Ueff = 2.2 mV (at 500 )
• Galvanic isolation: 500 V towards power supply and ground, and power supply and signal.
• Internal overvoltage protector: 600 Vrms surge arrester (impulse current test 8/20 µs, Î = 10 kA, 10 pulses).

Mechanical / hydraulic

• Weight: 6.5 kg (14.33 lbs) + flange weight
• Housing degree of protection: IP65/68, NEMA 4X/6P
• Antenna degree of protection: IP65/68, NEMA 4X/6P
• Materials in contact with process:
  • Horn antenna: 316L (1.4404)
  • Housing pipe: 316L (1.4435)
  • Planar antenna: PTFE
  • Sealing ring: Viton
  • Flange: 316L (1.4404/1.4435)
  • Adapter: 316L (1.4404)
  • Sealing: Viton
• Materials not in contact with process:
  • Housing T12: AlSi10Mg (aluminum, powder-coated)
  • Cover (Display): AlSi10Mg
  • Cable gland: Polyamid (PA), CuZn nickel-plated

Approvals

• Custody Transfer Approvals: NMi, PTB (OIML R85)
• Other Approvals: CE, C-Tick, Ex, Overfill prevention, RF, CRN.

Disclaimer

This summary is extracted from a PDF datasheet and may not include all figures, footnotes, or revisions. Contractual data must always be confirmed against the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror