Hach DR1300 FL Manual Del Usuario página 23

Problem
The readings
are low.
The readings
are low.
The readings
are low.
The readings
are low.
The readings
are low.
The readings
are low.
Possible cause
The reagent blank
value is not correct or
missing.
The reagent bottle was
not closed immediately
after use. The solvent
in the reagent
evaporated or the
reagent was
contaminated.
The quantity of reagent
added was not correct.
The reagent was not
correctly dispensed.
The reagents are no
longer good.
The sample port is
dirty.
The sample vials are
dirty or have scratches.
Solution
Make sure to do a reagent blank
calibration before a set of new
reagent bottles is used. Refer to
a reagent blank calibration
on page 16.
If the problem continues, do a
calibration check. Refer to
calibration check
Discard the set of reagent bottles.
Use a new set of reagent bottles. Do
a reagent blank calibration. Refer to
Do a reagent blank calibration
on page 16.
Close the reagent bottles
immediately after use.
Hold the reagent bottle vertically
above the sample vial when reagent
is added.
Note: If the reagent bottle is horizontal
when drops are added, the quantity of
reagent added will change.
Discard the set of reagent bottles.
Use a new set of reagent bottles. Do
a reagent blank calibration. Refer to
Do a reagent blank calibration
on page 16.
Keep the new reagents bottles out
of direct sunlight or indoor UV
illumination. UV light causes
damage to the reagents. When not
in use, keep the reagent bottles in
the dark.
Clean the sample port. Refer to
Clean the sample port
Clean the sample vials if dirty.
Replace the sample vials if the
sample vials have scratches.
Do
Do a
on page 17.
on page 21.
English 23