23
8 Supplement
WIKA Operating instructions - Submersible pressure transmitter model LH-20
Measuring ranges
Overload capacity, max. pressure
0 … 2.5 bar
50 bar
0 … 4 bar
65 bar
0 … 6 bar
90 bar
0 … 10 bar
90 bar
0 … 16 bar
130 bar
0 … 25 bar
130 bar
Output variable 4 … 20 mA
Output signal
4 … 20 mA
Signal resolution
4 µA
Fault signal
22 mA
Max. output current
22 mA
Run-up time
Ʋ with deviation ≤ 0.2 % approximately
2 s
Ʋ with deviation ≤ 0.1 % approximately
15 s
Output variable 4 … 20 mA/HART (optional)
Output signal
4 … 20 mA/HART
HART output values according to HART standard 5.0
Ʋ
Primary Value
Pressure
Ʋ
Secondary Value
Temperature
Signal resolution
1 µA
Fault signal
< 3.6 mA
Max. output current
22 mA
Run-up time approx.
15 s
Additional output parameter - temperature (optional)
Integrated resistance thermometer
Pt 100 according to DIN EN 60751
Tolerance class
B
Range
-50 … +100 °C (-58 … +212 °F)
Reference conditions and actuating variables (according to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
Ʋ
Temperature
+15 … +25 °C (+59 … +77 °F)
Ʋ
Relative humidity
45 … 75 %
Ʋ
Air pressure
860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig)
Determination of characteristics
Limit point adjustment according to IEC 61298-2
Characterstic curve
Linear
Reference installation position
upright, diaphragm points downward
Influence of the installation position
< 0.2 mbar/20 Pa (0.003 psig)
Содержание LH-20
Страница 15: ...15 8 Anhang WIKA Betriebsanleitung Pegelsonde Typ LH 20 Typ LH 20 frontbündig Abb 8 Maße Typ LH 20 frontbündig ...
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Страница 58: ...58 Notes WIKA Operating instructions Submersible pressure transmitter model LH 20 ...
Страница 59: ...59 WIKA global WIKA Operating instructions Submersible pressure transmitter model LH 20 ...