The probe on my Lachat ASX sampler will not fit through the lower guide plate. Did I receive the wrong one?
Lachat sampler dual probe guide plate
The guide plate for the probe on Lachat ASX 260 and 520 autosamplers has two holes in it. A screw underneath the probe assembly can be loosened to turn the guide plate 180 degrees. This will put the other hole into position. The larger hole is needed to accommodate the dual probe used with an autodilutor. The smaller hole is for the smaller diameter single probe .