Our Picarro water analyzer (L1102-i) is having problems making
measurements. We were measuring water vapor. As the [H2O] increased, the
scan time increased as well until it was 25-30s. The analyzer then gave
an error 'Error - Measurement time out'. After giving a few errors, the
Picarro restarted. This process repeated itself several times over a few
days. However, the [H2O] that was associated with timing out was about
27,000 ppmv on the first day (in the past we have analyzed much higher
[H2O] than this). Now the [H2O] that started having problems on the
third day was ~20, 000. Because this concentration is in the [H2O] range
of liquid water analysis, we can't measure liquid waters as well. Also I
noticed that when running low [H2O] the scan time is about 5s but
increased to 7s by the third day.
Has anybody had this problem and know how to correct it?