Endress+Hauser Micropilot FMR56 - Performance Characteristics; Reference Operating Conditions

Micropilot FMR56, FMR57
Endress+Hauser 31
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 diameter ≥ 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 version Value Output
digital analog
1)
Standard Sum of non-linearity, non-repeatability 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
Differing values in near-range applications
3 (0.12)
0
-3 (-12)
A 2 (6.6) D [m] ([ft])
20 (0.79)
-20 (-0.79)
R
D [mm] ([in])
A0019034
 18 Maximum measured error in near-range applications
∆ 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
Measured value resolution
Dead band according to DIN EN IEC 61298-2 / DIN EN IEC 60770-1:
• Digital: 1 mm
• Analog: 1 μA