Performance Characteristics; Reference Operating Conditions; Maximum Measured Error; Measured Value Resolution - Endress+Hauser Micropilot FMR60B Technical Information

Reference operating
conditions

Maximum measured error

Measured value resolution

Response time

18
Overvoltage category
Overvoltage category II

Performance characteristics

• 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
Reference accuracy
Accuracy
The accuracy is the sum of the non-linearity, non-repeatability and hysteresis.
• Measuring distance up to 0.8 m (2.62 ft): max. ±4 mm (±0.16 in)
• Measuring distance > 0.8 m (2.62 ft): ±1 mm (±0.04 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
∆ [mm (in)]
4 (0.16)
1 (0.04)
0
-1 (-0.04)
-4 (-0.16)
R
 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
Dead band according to DIN EN IEC 61298-2 / DIN EN IEC 60770-1:
• Digital: 1 mm
• Analog: 1 µA
According to DIN EN IEC 61298-2 / DIN EN IEC 60770-1 , the step response time is the time
following an abrupt change in the input signal up until the changed output signal has adopted 90 %
of the steady-state value for the first time.
The response time can be configured.
0.8 (2.62)
Micropilot FMR60B HART
D [m ( )]
A0032636
Endress+Hauser