Ch. 6. Fluid Imaging in a Droplet Sec. 6.6. Cleaning and Repair
4.
Remove the window assembly
Tools 0.050” hex driver or Allen wrench
• Remove the three screws holding the
glass insert into the holder body.
• Remove the window assembly.
• Use a Q-Tip
1
to gently push the window
out of the Droplet holder body
Caution: Push gently on the top side of the
window. Be careful not to push on the piezo
actuator (Pink block in illustration)
6.6.2. Cleaning
The cantilever holder clip, window assembly and O-ring can be cleaned by soaking in ethanol. Sonica-
tion may result in weakening the glue bond of the adhesive used to attach the window to its mounting
plate so limited amounts of sonication (less than 15 minutes) of the parts is recommended. Rinse the
parts in clean de-ionized water. Dry the parts with either low-pressure compressed air or a soft tissue
before reassembling the holder.
The rest of the holder parts can be cleaned with a cotton swab and ethanol. Avoid areas with electrical
wiring or circuit boards. If you are unsure about having gotten the wrong bits wet, dry the parts (perhaps
under the warmth of a desk lamp) for a while. Dry the parts with low pressure compressed air in any
case.
6.6.3. Reassembly
1. Fit the o-ring into the groove in the window mounting plate. Spare o-rings are supplied in the
accessory kit for the droplet holder and more can be obtained from Asylum Research if necessary.
2. Place the window in the holder aligned so that the ramp in the glass points toward the hole for
mounting the cantilever spring clip. The O-ring around the edge of the window mounting ring
will prevent the window from fitting directly into the holder body.
3. Use a finger to gently push the window into the holder body. As you push on the window, be
aware that the o-ring will need to compress in the recess of the holder body. In order for this to
happen, it may be necessary to use a small tool like the point of a pair of tweezers to help guide
the O-ring to fit.
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