Overview Of Maintenance - Agilent Technologies 7100 User Manual

Overview of Maintenance

Table 25

Overview of maintenance

Procedure
Cleaning the electrodes,
pre-punchers and insulation
plate
Cleaning the electrodes
Cleaning the detection
window and the alignment
interface
Preparing/cleaning the
replenishment system
Maintaining the functionality
Changing the air inlet filter
Changing the lamp
Agilent 7100 Capillary Electrophoresis System User Manual
Typical frequency
*
Clean frequently
Clean frequently*
System cleaning should be performed
when new buffer is added to the
electrolyte reservoir.
Perform lamp intensity test from the
detector test suite in the Lab Advisor
regularly (for example bi-weekly) and
monitor lamp life using EMF values.
Overview of Maintenance
Notes
• Inspect pre-punchers for salt deposits, bent
tips, deposits in top funnel.
Replace if either electrodes or pre-punchers are
bent, show signs of wear such as scratches, or
cannot be cleaned.
Inspect for salt deposits, O-ring integrity, bending,
and check alignment.
Capillary window:
• Gently clean with isopropanol and a lint-free
cloth.
Optical alignment interface:
• Inspect for occlusion under microscope or
magnifier (dust or shards of polyimide).
• If capillary was broken while in the interface,
inspect and remove fragments (ultrasonic
device and air burst)
Clean for storage with isopropanol/water. Filter all
solutions prior to use (0.2 or 0.45 µm).
• if the environment is very dusty
• if the system cannot generate enough pressure
• at least every three months.
Use the red-labeled alignment interface without
capillary for tests.
Maintenance 8
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