Hach-Lange HQD - Luminescent Dissolved Oxygen Probe LDO User Manual
Page 4
4
DOC272.53.80021
Note: Procedures also apply for rugged model probes.
1.
Connect the
probe to the meter.
The LDO101 probe
contains a factory
calibration. Remove
the shroud from the
probe.
2.
Push the
CALIBRATE
key to
create a new method
to enable user
calibration.
3.
Push the
METHODS
key, and
select User Cal -
100%. Push
OK
.
4.
Add
approximately ¼
inch (6.4 mm) of
reagent water to a
narrow-neck bottle,
such as a BOD
bottle.
5.
Insert a stopper
and shake
vigorously for
approximately 30
seconds to saturate
the entrapped air
with water. Allow up
to 30 minutes for
contents to
equilibrate to room
temperature.
6.
Remove the
stopper. Carefully
dry the cap with a
non-abrasive cloth
and place the probe
in the bottle.
7.
Select Read.
The display will
show Stabilizing...
and a progress bar
as the probe
stabilizes. The
display will highlight
the standard value.
8.
Select Done to
view the calibration
summary.
9.
Select Store to
accept the
calibration and
return to the
measurement mode.
Install the shroud on
the probe body.
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