Siemens SITRANS LG250 Operating Instructions Manual page 76

Guided wave radar 4...20 ma/hart - two-wire rod and cable probe with sil qualification
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Starting current
Load
Damping (63 % of the input variable),
adjustable
HART output values according to HART 7 (default setting)
Ʋ First HART value (PV)
Ʋ Second HART value (SV)
Ʋ Third HART value (TV)
Ʋ Fourth HART value (QV)
Indication value - DIsplay and adjustment module
Ʋ Displayed value 1
Ʋ Displayed value 2
Resolution, digital
Output variable - Additional current output
For details on the operating voltage see chapter "Voltage supply"
Output signal
Range of the output signal
Signal resolution
Failure signal current output (adjustable) Last valid measured value, ≥ 21 mA, ≤ 3.6 mA
Max. output current
Starting current
Load
Damping (63 % of the input variable),
adjustable
Indication value - DIsplay and adjustment module
Ʋ Displayed value 1
Ʋ Displayed value 2
Resolution, digital
Accuracy (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Ʋ Temperature
Ʋ Relative humidity
Ʋ Air pressure
Installation reference conditions
Ʋ Min. distance to internal installations
The output values can be assigned individually
1)
The indication values can be assigned individually
2)
The indication values can be assigned individually
3)
76
≤ 10 mA for 5 ms after switching on, ≤ 3.6 mA
see load diagram under Power supply
0 ... 999 s
Linearised percentage value, level
Distance to the level
Measurement certainty, level
Electronics temperature
2)
Filling height Level
Electronics temperature
< 1 mm (0.039 in)
4 ... 20 mA (passive)
3.8 ... 20.5 mA (default setting)
0.3 µA
21.5 mA
≤ 10 mA for 20 ms after switching on, ≤ 3.6 mA
Load resistor, see chapter "Voltage supply"
0 ... 999 s
3)
Filling height Level
Electronics temperature
< 1 mm (0.039 in)
+18 ... +30 °C (+64 ... +86 °F)
45 ... 75 %
+860 ... +1060 mbar/+86 ... +106 kPa
(+12.5 ... +15.4 psig)
> 500 mm (19.69 in)
SITRANS LG250 - Operating Instructions
1)
PBD-51041388

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