Endress+Hauser Micropilot FMR20 HART - Performance Characteristics; Reference Operating Conditions; Maximum Measured Error; Measured Value Resolution

Micropilot FMR20 HART
Endress+Hauser 13
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.
Output, digital
(HART, SmartBlue (app))
• Sum of non-linearity, non-repeatability and hysteresis: ±2 mm (±0.08 in)
• Offset/zero point: ±4 mm (±0.16 in)
Output, analog
Only relevant for 4-20mA current output; add error of the analog value to the digital value
• Sum of non-linearity, non-repeatability and hysteresis: ±0.02 %
• Offset/zero point: ±0.03 %
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
 9 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
Response time
The response time can be configured. The following step response times apply (in accordance with
DIN EN 61298-2) when damping is switched off:
Tank height
<20 m (66 ft)
Sampling rate
1 s
-1