Maintenance Schedule - Hach ORBISPHERE 3100 Manual Básico Del Usuario

3. O2: AC diagnostic parameters
Option
O2: AC diagnostic
parameters
4. O2: Calibration timer
Option Description
Activate Check the box to activate the calibration timer option.
calibration
When activated, the instrument will automatically remind the user when the next sensor
timer
calibration is due.
The Last calibration date parameter is shown for information. This is automatically
updated each time a calibration is performed on the sensor.
Enter the Nb of days between calibrations in the box provided. This defines the due
date of the next sensor calibration.
Section 7 Maintenance

7.1 Maintenance schedule

This following table shows the recommended maintenance schedule for the ORBISPHERE
3100 instrument. This proposed schedule should be modified according to operating conditions.
Interval
Daily
Weekly
Monthly
Yearly
Every 4 years
7.2 Batteries
The instrument is designed to operate on rechargeable batteries. When battery power becomes low,
the batteries can be recharged by connecting the instrument to the mains power supply using the
supplied power adapter and cable. When connected, the batteries are automatically recharged.
7.3 Sensor
If the instrument is being powered by mains power, disconnect the instrument from the power supply before
carrying out this procedure.
Based on instrument usage of 8 hours/day and 365 days/year, the sensor spot will need to be
replaced about once every 4 years. The procedure is very simple and takes no more than a few
minutes.
Before starting, ensure you have the replacement flow chamber assembly as supplied with the
maintenance kit (part number DG33228). Switch the instrument OFF and make sure it is
disconnected from any mains power supply.
Follow these instructions referring to the illustrations below:
Description
This option is useful for troubleshooting purposes and will display the values of
the fluorescent and reference amplitude and phase, plus the phase shift value
Item
Clean outside of the instrument with a damp cloth and run clean water through the
instrument to clean the internal passageways
Clean outside of the instrument with a damp cloth and run 20 mL of ethanol (EtOH)
through the instrument to clean the internal passageways
Run warm water through the instrument followed by 20 mL of ethanol (EtOH).
Dry by flowing dry air or N
Calibrate the oxygen sensor
Replace the oxygen sensor spot and perform a sensor calibration
W A R N I N G
through the instrument
2
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