Hach-Lange HQD - BOD LDO Probe LBOD - Manual (Page 5)

DOC272.53.80025 5
Measurement
Measurement notes:
• Make sure that the BOD bottle is filled with sample and no air bubbles are present.
• The LBOD10101 magnetic-based motor produces more noise than a
conventional-based stirrer.
• Data is stored automatically in the data log when Press to Read or Interval is
selected in the Measurement Mode. When Continuous is selected, data will only be
stored when
STORE is pushed.
• Make sure the BOD bottle does not contain air bubbles when the stopper is installed
for accurate final results.
6. Select Read.
The display will
show Stabilizing...
and a progress bar
as the probe
stabilizes.
7. Select Done to
view the calibration
summary.
8. Select Store to
accept the
calibration and
return to the
measurement
mode.
9. After the 0
saturated value is
highlighted, place
the probe in a BOD
bottle full of
deionized water,
start the stirrer and
run for 10 minutes to
remove sulfite
residue. Remove
the probe from the
BOD bottle and
rinse thoroughly.
Before measurement:
The probe must have the correct service-life time stamp. Set the date and time in the meter before attaching the probe.
The probe is factory calibrated and ready for use. For applications that require greater accuracy and precision, perform a
user calibration.
If complete traceability is required, enter a sample ID and operator ID before measurement.
Refer to Troubleshooting on page 10 for measurement errors.
Tighten the probe locking nut securely when connecting the probe to the meter.
Connect the HQd meter to AC power so the battery life is conserved. See the HQd user manual for instructions.