Advanced Instruments 4C3, User Manual

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The RMA procedure is as follows:
1. Contact Advanced Instruments to obtain an RMA (Returned
Material Authorization).
2. Pack and ship the instrument in its original carton. Do not send
instrument supply items.
If requested to return your 4C3 for repair or replacement:
1. Turn the instrument off and disconnect the power cord.
2. Drain the heat transfer fluid reservoir as instructed in section D.
Remove vented fluid fill plug from heat transfer fluid port and
replace with solid fluid ship plug.
3. Use dry, absorbent tissues to remove any remaining heat transfer
fluid from the sample freezing chamber.
4. Position the freezing chamber plug O-ring on the freezing cham-
ber plug such that it remains in place near the largest diameter of
the plug.
5. Gripping the freezing chamber plug handle, push the tapered part
of the plug, with the O-ring in place, into the sample freezing
chamber with enough force to hold both in place during ship-
ment, to avoid any instrument damage from fluid remaining in
the cooling system.
6. Place a clean, dry probe wiper over the tips of the probe and stir
wire as shown in figure 4.
7. Manually rotate the operating head clockwise and gently lower
the wiper-covered probe into the insert (STAT) test well.
8. Install the top half of the shipping fixture to securely hold the
operating head during shipment.
9. Carefully pack and send the 4C3 using its own specially-designed
carton and packing material (do not send supply items, cassettes,
tubes, or the reservoir drain tube unless one of these is suspected
to be the cause of a problem).
54
The Advanced
®
Model 4C3 User’s Guide