Verification Procedure - Hach PHC101 Manual Del Usuario

7.1 Verification procedure

1. Go to the
verification menu.
The display shows
the pH buffer
solution to use for
verification.
Note: Menu name for
HQd meters: Run check
standard.
5. Shake the probe
from side to side to
refresh the reference
junction and remove
air bubbles.
2. Prepare or pour
the pH buffer
solution into a
beaker.
6. Stir gently, then
read the pH value of
the buffer solution.
The meter accepts
or rejects the result.
3. Rinse the probe
with deionized water.
Dry the probe with a
lint-free cloth.
4. Put the probe in
the pH buffer
solution with the
sensor and
reference junction
fully in the solution.
Do not put the probe
on the bottom or
sides of the beaker.
English 11