Thermo Scientific SOLA II, User Manual

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Available ranges for the SOLA II Trace
The lowest recommended range is 2ppm full scale, and the published specifications are limited to
this lowest range; however some users have calibrated for lower ranges and have scaled the outputs
accordingly. The manufacturer recognises this may be a preference of some users but notes that
where a user calibrates for a full scale range lower than 2ppm the performance specifications are not
altered, that is the repeatability will not be guaranteed to be lower than 1% of 2ppm, similarly the
limit of detection also remains 1.25% of 2ppm (25ppb).
The highest recommended range is a full scale of 5ppm, above this range the performance of the
standard SOLA II is usually deemed sufficiently good to negate the benefits of the SOLA II Trace and
provide a more cost effective solution, however users are invited to consult the factory for the
implementation of ranges with the SOLA II Trace higher than 5ppm.
SOLA II User Guide N - 2 Thermo Fisher Scientific