Micropilot M FMR62B

Summary

Product identification

• Product Name: Micropilot FMR62B
• Protocol: HART
• Technology: Free-space radar
• Document: TI01684F/00/EN/05.24-00

Application

• Continuous, non-contact level measurement of liquids, pastes, and sludges.
• Process connections: Flanges.

Operating limits

• Maximum measuring range: 80 m (262 ft)
• Temperature: –196 to +450 °C (–321 to +842 °F)
• Pressure: –1 to +160 bar (–14.5 to +2 321 psi)

Performance characteristics

• Accuracy: ±1 mm (±0.04 in)
• Measured value resolution: 1 mm (digital)
• Maximum measured error:
  • Up to 0.8 m (2.62 ft) measuring distance: max. ±4 mm (±0.16 in)
  • Greater than 0.8 m (2.62 ft) measuring distance: ±1 mm (±0.04 in)
• Non-repeatability: ≤ 1 mm (0.04 in)
• Response time: < 1 s (damping switched off)
• Influence of ambient temperature:
  • Digital output (HART): Average TC = 2 mm/10 K
  • Analog (current output 1): Zero point TC = 0.02 %/10 K, Span TC = 0.05 %/10 K
  • Analog (current output 2): Zero point TC = 0.08 %/10 K, Span TC = 0.08 %/10 K

Feed water

• Media Groups:
  • A0 (εr 1.2 to 1.4)
  • A (εr 1.4 to 1.9)
  • B (εr 1.9 to 4)
  • C (εr 4 to 10)
  • D (εr >10)
• Measurement in vessels with agitator: Measuring ranges vary by media group and antenna type, from 2 m (7 ft) to 60 m (197 ft).
• Measurement in stilling well: Measuring ranges are 20 m (66 ft) for all media groups with an 80 mm (3 in) PTFE cladded flush mount antenna.
• Measurement in bypass: Measuring ranges are 20 m (66 ft) for all media groups with an 80 mm (3 in) PTFE cladded flush mount antenna.
• Influence of gas phase: Systematic measured error can occur due to gas phase pressure and temperature.

Product water

Not applicable for this product type.

Electrical

• Operating frequency: Approx. 80 GHz
• Transmission power: Peak power < 1.5 mW, Average output power < 70 µW
• Output signal: HART (FSK ±0.5 mA over current signal, 1200 Bit/s)
• Current output 1 (4 to 20 mA passive):
  • Operating modes: 4.0 to 20.5 mA, NAMUR NE 43 (3.8 to 20.5 mA), US mode (3.9 to 20.8 mA).
  • Assigned to: Level linearized.
• Current output 2 (optional, 4 to 20 mA passive):
  • Operating modes: 4.0 to 20.5 mA, NAMUR NE 43 (3.8 to 20.5 mA), US mode (3.9 to 20.8 mA).
  • Can be assigned to: Level linearized, Distance, Terminal voltage, Electronics temperature, Sensor temperature, etc.
• Switching output (optional):
  • Type: Open collector.
  • Electrical connection data: U = 16 to 35 VDC, I = 0 to 40 mA.
  • Internal resistor: < 880 Ω.
  • Insulation voltages: 1350 VDC (power supply), 500 VAC (ground).
• Signal on alarm:
  • Current output: Minimum alarm 3.6 mA, Maximum alarm 22 mA, User-configurable 3.59 to 22.5 mA.
• Load:
  • 4 to 20 mA passive, HART: Max load resistance depends on supply voltage (e.g., 30 VDC, 23 mA).
  • 4 to 20 mA passive, current output 2: Max load resistance depends on supply voltage.
• Supply voltage:
  • Non-hazardous, Ex d, Ex e: 10.5 to 35 VDC
  • Ex i: 10.5 to 30 VDC
• Nominal current: 4 to 20 mA
• Power consumption: 0.9 W max.
• Wireless HART data: Minimum start-up voltage 10.5 V, Start-up current < 3.6 mA.

Mechanical / hydraulic

• Antenna types and maximum measuring ranges:
  • Horn, 316L, 65 mm (2.6 in): 80 m (262 ft)
  • Drip-off, PTFE, 50 mm (2 in): 50 m (164 ft)
  • Cladded flush mount, PTFE, 50 mm (2 in): 50 m (164 ft)
  • Cladded flush mount, PTFE, 80 mm (3 in): 80 m (262 ft)
• Materials: Specific materials depend on the version (e.g., PTFE, 316L, aluminum).
• Dimensions: Refer to official documentation for detailed dimensional drawings.
• Weight: Refer to official documentation.
• Cable entries: Depend on device version; route cables downwards to prevent moisture ingress.
• Terminals: Clamping range for supply voltage is 0.5 to 2.5 mm² (20 to 14 AWG); for external ground terminal is 0.5 to 4 mm² (20 to 12 AWG).

Certificates and approvals

• CE mark
• RoHS
• RCM marking
• Ex approvals
• Functional safety (SIL2, SIL3)
• Pressure equipment (≤ 200 bar)
• Radio approval (EN 302729, EN 302372, FCC, Industry Canada)

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Disclaimer: Extraction may miss figures, footnotes, or revisions; contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

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