Siemens SITRANS LG250 Operating Instructions Manual page 71

Measurement accuracy (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Ʋ Temperature
Ʋ Relative humidity
Ʋ Air pressure
Mounting, reference conditions
Ʋ Min. distance to internal installations
Ʋ Vessel
Ʋ Medium
Ʋ Mounting
Sensor parameter adjustment
Fig. 28: Measuring ranges - SITRANS LG250
1 Reference plane
2 Probe length L
3 Measuring range (default setting refers to the measuring range in water)
4 Upper dead zone (see following diagrams - grey section)
5 Lower dead zone (see following diagrams - grey section)
Typical deviation - Interface measure-
ment
With interface measurement = 2.0.
1)
PBD-51041053
+18 ... +30 °C (+64 ... +86 °F)
45 ... 75 %
+860 ... +1060 mbar/+86 ... +106 kPa
(+12.5 ... +15.4 psig)
> 500 mm (19.69 in)
metallic, ø 1 m (3.281 ft), centric mounting, process fit-
ting flush with the vessel ceiling
Water/Oil (dielectric constant ~2.0)
Probe end does not touch the vessel bottom
No gating out of false signals carried out
4
2
3
5
± 5 mm (0.197 in)
SITRANS LG250 - Operating Instructions
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