144 | Chapter 4: Maintenance
With Buffer
Switching
Connect the supply bottles this way:
• Buffer bottles C and D: Disinfectant
• Buffer bottles A and B: Rinse solution
After disinfecting channels C and D, you will reverse this assignment
to disinfect channels A and B.
Keypad:Run DECON_STEP1, DECON_STEP2, and DECON_
STEP3.
LHC: At the prompt/delay, change bottles.
Without Buffer
Switching
Connect the disinfectant bottle to the Fluid In port.
Keypad:Run DECON_STEP1 followed by DECON_STEP2.
LHC: At the prompt/delay, change bottles.
7. Finally, disconnect the supply tubing from the washer to completely purge the
system of all fluid by priming the tubing with air. Keypad: Run PURGE_
SYSTEM_WITH_AIR. LHC: Follow the prompts.
Storing the Instrument
After performing the Long Shutdown (Prepare for Storage or Shipment) protocols:
l Turn off the instrument and disconnect the power cord.
l Store it on a flat surface that is relatively free of vibration, in a dust-free and particle-
free environment.
l Protect the instrument from temperature extremes that can cause condensation within
the unit and from corrosive fumes and vapors.
l Store the instrument under the following environmental conditions:
Temperature: 20° to 50°C (-4° to 122°F)
Relative humidity: 10% to 85% (non-condensing)
n Important: Allow the instrument to reach room temperature before use after
storage.
Replace Components
Some components of the 405 LS must be replaced periodically to maintain specified
performance levels.
l Replace the Vacuum Pump Fuse on the facing page
l Clean the Fluid Inlet Filter on page 130
l Vacuum Filtration Carrier: Replace the Gasket on page 146
405™ Microplate Washer LS
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