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9 Supplement
Accuracy (similar to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
Temperature
-
Relative humidity
-
Air pressure
-
Deviation in characteristics and characteristics
Average temperature coefficient of the zero
signal (temperature error)
Resolution, general
Ultrasonic frequency
Interval
Beam angle at 3 dB
5)
Adjustment time
Accuracy
16 mm
10 mm
4 mm
-4 mm
-10 mm
-16 mm
Fig. 20: Accuracy LEVEL TRANSMITTER 8177
Ambient conditions
Ambient, storage and transport temperature
Process conditions
Process pressure
38
1 m
2 m
3 m
4)
Relating to the nominal range, incl. hysteresis and repeatability, determined
according to the limit point method.
Time to output the correct level (with max. 10 % deviation) after a sudden
5)
level change.
+18 ... +30 °C (+64 ... +86 °F)
45 ... 75 %
860 ... 1060 mbar/86 ... 106 kPa (12.5 ... 15.4 psig)
4)
0.06 %/10 K
max. 1 mm
55 kHz
> 2 s (dependent on the parameter adjustment)
5.5°
> 3 s (dependent on the parameter adjustment)
better than 0.2 % or ±4 mm (see diagram)
4 m
5 m
6 m
-40 ... +80 °C (-40 ... +176 °F)
-20 ... 200 kPa/-0.2 ... 2 bar (-2.9 ... 29 psig)
LEVEL TRANSMITTER 8177 • 4 ... 20 mA/HART
7 m
8 m
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