Siemens SITRANS LH100, Краткое руководство по эксплуатации

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SITRANS LH100 (7MF1572..) Transmitter for hydrostatic level
A5E32588610-02, 02/2014
35
8 Technical specifications
Gauge pressure input
Measured variable
Hydrostatic level
Measuring range, max.
operating pressure (according
to 97/23/EC Pressure
Equipment Directive) and max.
test pressure (according to
DIN 16086)
Measuring range Maximum operating
pressure MAWP (PS)
Maximum test pressure
0,0 ... 2.5 bar 7.5 bar 7.5 bar
2-wire output
Output signal
4 … 20 mA
Load Resistor R [ Ω ]
U
H
Auxiliary power supply in V
Measuring accuracy (according to EN 60770-2)
Reference conditions
● Rising characteristic curve
● Start-of-scale 0 bar
● Room temperature 25 °C (77 °F)
Measurement deviation with
limit setting, including
hysteresis and repeatability
0.3% of full-scale value (typical)
Effect of ambient temperature
Zero point and measuring
range
● < 6 mH
2
O (3 to 18 ftH
2
O) 0.45%/10 K (0.45%/18 °F) of full-scale value
● ≥ 6 mH2O ( ≥ 18 ftH2O) 0.3%/10 K (0.3%/18 °F) of full-scale value
Long-term stability
Zero point and measuring
range
● < 6 mH
2
0 (3 to 18 ftH
2
0) 0.25% of full-scale value/year
● ≥ 6 mH
2
0 ( ≥ 18 ftH
2
0)
0.2% of full-scale value/year
Effect of auxiliary power supply In percent per change in voltage
0.01% per 1 V
Rated conditions
Installation conditions
Ambient conditions
● Ambient temperature
–
Altitude
– Relative humidity
-10 … +80 °C (-4 … +176 °F)
max. 2 000 m mean sea level
Use a suitable power supply at an altitude of more than 2 000 m (6562 ft.) above sea
level.
0 ... 100 %
Note Observe the temperature class in hazardous areas.
Storage temperature -40 … +80 °C (-40 … +176 °F)
● Degree of protection
according to EN 60529
IP68