Monthly Maintenance - Thermo Scientific Orion 2117HL User Manual

Analyzer Maintenance

Monthly Maintenance

Calibration
Replacement of Reference
Electrode Filling Solution
Thermo Scientific Orion 2117HL High Level Chloride Analyzer User Guide
Calibration frequency is operator dependent for the most accurate and
precise measurements.
• 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 a 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.
Danger: Turn off the air pump prior to removing the reference electrode
filling solution bottle. If the air pump is left on, it will spatter filling
solution as the bottle is removed.
1. Turn off the air pump. Refer to Chapter III Shutdown and
Start-Up Procedure.
2. Remove the hollow push pin on the discharge tube of the air pump
from the base of the filling solution bottle.
3. Remove the filling solution bottle from the clip. Unscrew the cap and
discard the bottle.
4. 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.
5. Invert the filling solution bottle and snap it into the clip.
6. Puncture the base of the filling solution bottle with the hollow push pin
on the discharge tube of the air pump. Push the pin down until its
PVC base abuts the bottle. Mark and date the level of filling solution
in the reservoir. The electrolyte solution will begin to flow into the
reference electrode.
V-2