Monthly Maintenance - Thermo Scientific Orion 2120XP User Manual

Analyzer Maintenance

Monthly Maintenance

Calibration
Replacement of Reference
Electrode Filling Solution
Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide
Calibration frequency is operator dependent for the most accurate and
precise measurements.
• Replacement of the reagent requires calibration. Refer to Chapter IV,
Performing a DKA Calibration.
• Calibration intervals can be programmed using the setup mode. This
will prompt the operator to recalibrate after a specific amount of time
has passed. Refer to Chapter III, Use of the Setup Mode.
Refer to Chapter II, Installation of New Reference Electrode.
Reference electrode filling solution is meant to be a several month supply.
Therefore, if the filling solution bottle is less than one quarter full, replace
the solution. This should be checked each month to ensure that the
electrode does not run dry.
1. Remove the spent filling solution bottle from the clip. Unscrew the cap
and discard the bottle.
2. Remove the cap and seal from a new reference electrode filling solution
bottle. Check that the rubber gasket is properly aligned, and then
connect the cap and tubing assembly to the bottle. The 1/8" tubing
should extend into the bottle.
3. Invert the filling solution bottle and snap it into the clip.
4. Use a pushpin to puncture three air vents in the bottom of the bottle.
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