Omega OS950 - Manual (Page 14)

5.2 Troubleshooting Measurement
Difficulties
If you experience measurement problems, review the fol-
lowing troubleshooting steps:
Is the sensor window clean?
Clean the sensor window and reflective cup and repeat the
measurement.
Is the target's surface non-metallic?
Coat metallic surfaces with a non-metallic finish and repeat
the measurement.
Is the target's surface transparent?
Coat transparent surfaces with an opaque non-metallic fin-
ish and repeat the measurement.
Alternatively, put a shiny metallic surface such as aluminum
foil behind the transparent target and repeat the measure-
ment.
Was the instrument's nosepiece in contact with the surface?
Touch the nosepiece flush to the target's surface and repeat
the measurement.
If after applying all of the above solutions, the instrument's
accuracy is still in question, contact Omega for further help.
Chapter Six - OS950™ Specifications
Target Temperature Range
OS951 -50 to 550°F (-45 to 287°C)
OS953 0 to 1000°C (-18 to 538°C)
OS955 186 to 1207°F (86 to 653°C)
OS956 186 to 1600°F (86 to 871°C)
Linearity Error
OS951 ± 1% of reading
OS953 ±3% of reading
OS955 ±3% of reading
OS956 ±3% of reading
Emissivity Error
±1% of max. difference between target temperature and
instrument temperature when touching, for emissivity of 0.8
to 1.0
Minimum spot size diameter
Approx. 1/4" (6.4 mm)
Repeatability
± 0.1 °F/°C
NIST Traceablity
In AECS Mode
Display Resolution
0.1 °F or 0.1 °C
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