Hach LBOD101, Руководство пользователя

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Section 5 Calibration
The procedure that follows is applicable to meters that can connect to Intellical LBOD probes. Refer
to the applicable meter documentation for meter operation and probe-specific settings.
5.1 Calibration notes
Read the notes that follow before calibration.
• Measure samples as soon as possible after collection.
• Use the single display mode for calibration when more than one probe is connected to the meter (if
applicable).
• Calibrate the probes and verify the calibration regularly for best results. Use the meter to set
calibration reminders.
• The calibration data is stored in the probe. When a calibrated probe is connected to a different
meter with the same calibration options, a new calibration is not necessary.
• Air bubbles below the sensor when in solution can cause a slow response or error in the
calibration. Make sure to remove air bubbles during calibration.
• The meter uses the slope value shown at the end of the calibration to monitor the condition of the
sensor cap.
5.2 LBOD water-saturated air (100%) calibration procedure
1. Fill a BOD bottle
approximately ¾ full
with water.
2. Put a stopper on
the bottle and shake
for 30 seconds.
3. Rinse the probe
with deionized water.
Dry the probe with a
lint-free cloth.
4. Carefully dry the
LBOD sensor cap
with a non-abrasive
cloth.
5. Put the probe in
the bottle. Wait
approximately
10 minutes for the
contents to adjust to
ambient
temperature.
6. Go to the
calibrate menu.
Select the probe, if
applicable.
7. Read the
dissolved oxygen
value. The display
shows 100% when
the reading is stable.
8. Save the
calibration.
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