Micropilot FMR66B HART
14
V. 1, Rev. 2, 26-07-2022
Hauser
Overvoltage category
Overvoltage category II
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
Reference accuracy
The devices are optimized for bulk solid applications on delivery. Additional reference condition for
the accuracy specifications for solids devices is
Bin type
=
Workbench test
.
Accuracy
The accuracy is the sum of the non-linearity, non-repeatability and hysteresis.
• Measuring distance up to 1.5 m (4.92 ft): max. ±20 mm (±0.79 in)
• Measuring distance > 1.5 m (4.92 ft): ±3 mm (±0.12 in)
Non-repeatability
Non-repeatability is already included in the accuracy.
≤ 1 mm (0.04 in)
If conditions deviate from the reference operating conditions, the offset/zero point that results
from the installation conditions can be up to ±4 mm (±0.16 in). This additional offset/zero
point can be eliminated by entering a correction (
Level correction
parameter) during
commissioning.
Differing values in near-range applications
1.5 (4.92)
20 (0.79)
3 (0.12)
-3 (-0.12)
-20 (-0.79)
D [m (!)]
∆
[mm (in)]
R
0
A0032637
6
Maximum measured error in near-range applications
Δ
Maximum measured error
R
Reference point of the distance measurement
D
Distance from reference point of antenna
Measured value resolution
Dead band according to DIN EN IEC 61298-2 / DIN EN IEC 60770-1:
