Dry Run
33
Afterwards, check the O-ring. No dirt particles
may remain on the sealing.
If the reagent is distributed in the reactor, it is also recommended to clean the reactor. If the
powder is only in the area of the reagent bed storage, simply open the reactor, remove the
reagent bed and brush the powder through the riser tubes into the sample tray. Even with dry
compressed air (minimum distance 15 cm!) the reactor can be cleaned.
After the cleaning a dry run should be performed.
6.
Dry Run
A dry run is necessary:
Before first use,
after the reactor has been left open for a longer period > 180 sec
or
if the water content of a previous measurement exceeded 25 mg
Although very low water contents are to be measured and the device was not in use before,
a dry run is recommended. If the HydroTracer is not in use the unit must always be kept closed
and be filled with reagent
A dry run is carried out in accordance with section “2 Performing a Test”
,
with the difference:
no sample material is used
the heating temperature is set to 210 °C
for the sample weight is enter 1 g and for the density 1g/cm³
