Installation Instructions

Micropilot FMR20
14 Endress+Hauser
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 diameter ≥ 1 m (40 in)
• No major interference reflections inside the signal beam
Maximum measured error
Typical data under reference operating conditions: DIN EN 61298-2, percentage values in relation to
the span.
Device Value Output
digital
1)
analog
2)
FMR20
40 mm
(1.5 in)Antenna
Sum of non-linearity, non-repeatability and hysteresis ±2 mm (±0.08 in) ±±0.02 %
Offset/Zero ±4 mm (±0.16 in) ±0.03 %
FMR20
80 mm (3 in)Antenna
Sum of non-linearity, non-repeatability and hysteresis ±2 mm (±0.08 in) ±0.02 %
Offset/Zero ±4 mm (±0.16 in) ±0.03 %
1) HART, SmartBlue (app)
2) Only relevant for 4-20mA current output; add error of the analog value to the digital value
Differing values in near-range applications
0
0.5 (1.67)
D[m ](ft)
∆
[mm (in)]
2 (0.08)
10 (0.39)
-20 (-0.79)
20 (0.79)
-2 (-0.08)
-10 (-0.39)
R
R
0.1 (0.33)
R
A0033255
 8 Maximum measured error in near-range applications; values for standard version
∆ Maximum measured error
R Reference point of the distance measurement
D Distance from reference point of antenna
Measured value resolution
Dead band as per EN61298-2:
• Digital: 1 mm (0.04 in)
• Analog: 4 µA