  We present a systematic analysis of all the BeppoSAX data of SGR1900+14. The
observations spanning five years show that the source was brighter than usual
on two occasions: ~20 days after the August 1998 giant flare and during the
10^5 s long X-ray afterglow following the April 2001 intermediate flare. In the
latter case, we explore the possibility of describing the observed short term
spectral evolution only with a change of the temperature of the blackbody
component. In the only BeppoSAX observation performed before the giant flare,
the spectrum of the SGR1900+14 persistent emission was significantly harder and
detected also above 10 keV with the PDS instrument. In the last BeppoSAX
observation (April 2002) the flux was at least a factor 1.2 below the
historical level, suggesting that the source was entering a quiescent period.
