Resolution; Reaction Time; Influence Of Ambient Temperature - Endress+Hauser Levelflex FMP51 Modbus Technical Information

Levelflex FMP51 Modbus

Resolution

Reaction time

Influence of ambient
temperature
3) According to DIN EN IEC 61298-2 / DIN EN IEC 60770-1 the response time is the time which passes after a sudden change of the input signal
until the output signal for the first time assumes 90% of the steady-state value.
4) Product structure: Feature 600, options MB, MC or MD)
Endress+Hauser
In the area of the upper probe end, the measuring error is as follows (rod/rope only):
D
40 (1.57)
30 (1.18)
10 (0.39)
2 (0.08)
0 (0)
- 2 (- 0.08)
- 10 (-0.39)
- 30 (- 1.18)
- 40 (- 1.57)
 7 Measuring error at the upper end of the probe; dimensions: mm (in)
D Sum of non-linearity, non-repeatability and hysteresis
R Reference point of measurement
DC Dielectric constant
• digital: 1 mm
• analog: 1 μA
The reaction time can be parametrized. The following step response times (as per DIN EN IEC
61298-2 / DIN EN IEC 60770-1)
Probe length
< 10 m (33 ft)
< 40 m (131 ft)
Probe length
< 10 m (33 ft)
The measurements are carried out in accordance with DIN EN IEC 61298-3 / DIN EN IEC
60770-1
• digital (HART, PROFIBUS PA, FOUNDATION Fieldbus): average T
For devices with remote sensor
1 m (3.3 ft) of the remote cable.
• analog (current output):
– zero point (4 mA): average T
– span (20 mA): average T
R
100 (3.94)
3)
are valid if the damping is switched off:
Level measurement
Sampling rate
3.6 measurements/second
≥ 2.7 measurements/second
Interface measurement
Sampling rate
≥ 1.1 measurements/second
4)
there is an additional offset of ±0.3 mm/10K (±0.01 in/10K) per
= 0.02 %/10 K
K
= 0.05 %/10 K
K
DC = 2
DC = 80
200 (7.87)
Step response time
< 0.8 s
< 1 s
Step response time
< 2.2 s
= 0.6 mm/10 K
K
A0015091
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