Micropilot FMR51, FMR52
Endress+Hauser 33
Performance characteristics
Reference operating
conditions
• Temperature = +24 °C (+75 °F) ±5 °C (±9 °F)
• Pressure = 960 mbar abs. (14 psia) ±100 mbar (±1.45 psi)
• Humidity = 60 % ±15 %
• Reflector: metal plate with a minimum diameter of 1 m (40 in)
• No major interference reflections inside the signal beam
Maximum measured error
Typical data under reference operating conditions: DIN EN IEC 61298-2 / DIN EN IEC 60770-1;
percentage values in relation to the span.
Device Value Output
digital analog
1)
FMR51/FMR52
Standard version
Sum of non-
linearity,
nonrepeatability and
hysteresis
± 2 mm (0.08 in) ± 0.02 %
Offset/Zero ± 4 mm (0.2 in) ± 0.03 %
FMR51/FMR52
Version with application package
"Advanced dynamics"
2)
Sum of non-
linearity,
nonrepeatability and
hysteresis
± 3 mm (0.12 in) ± 0.02 %
Offset/Zero ± 4 mm (0.2 in) ± 0.03 %
1) Only relevant for 4-20mA current output; add error of the analog value to the digital value.
2) Product structure: Feature 540 "Application Package", Option EM "Advanced dynamics"
Differing values in near-range applications
2 (0.08)
0
-2 (-0.08)
A 1 (3.3)
4 (0.16)
-4 (-0.16)
R
D [mm] ([in])
D [m] ([ft])
A0019035
10 Maximum measured error in near-range applications; values for standard version
Δ Maximum measured error
A Lower edge of the antenna
D Distance from the lower edge A of the antenna
R Reference point of the distance measurement
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