Technical data
10.2 Performance
SITRANS Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC
81
10.2
Performance
Performance
1)
Reference operating conditions according to IEC 60770-1
Ambient temperature
+15 to +25 °C (+59 to +77 °F)
Humidity
45% to 75% relative humidity
Ambient pressure
860 to 1060 mbar g (86000 to 106000 N/m
2
g)
Measurement Accuracy (measured in accordance with IEC 60770-1)
From end of antenna to 600mm
(1.96ft)
40mm (1.57")
Remainder of range
the greater of: 10 mm (0.4"), or 0.10% of Span
Analog Output Accuracy (measured in accordance with IEC 60770-1)
Non-linearity (accuracy)
0.125% of Span (including hysteresis and nonre-
peatability)
Non-repeatability
0.025% of Span (included in non-linearity specifica-
tion)
Deadband (resolution)
0.0375% of Span (included in non-linearity specifi-
cation)
Frequency
C-band, approx. 6 GHz
Max. measurement range
2)
20 m (65 ft)
Update time
mA output and loop display is updated once per
second
Minimum detectable distance
2)
0.3 m (1 ft), plus the shield length (if any)
Influence of ambient temperature
0.003% / K
Dielectric constant
εr > 3
Memory
•
non-volatile EEPROM
•
no battery required.
1) Under specific strong electromagnetic fields the output can vary < +/- 0.5% of maximum
range.
2) Referenced from the sensor reference point.