5.2Troubleshooting 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
Coat metallic surfaces with a
Is the target's surface transparent?
Coat transparent surfaces with an opaque
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
OS953 0 to 1000°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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