Thermo Scientific 3907 Operating Manual page 47

See
Manual
Section
-- Inspect door latch, hinges and
door gasket seal.
8 Check air exchange ventilator
caps for adjustment; open or
close as required.
9 Perform a complete decontam-
ination procedure. Wipe down
interior, shelves, side panels
with disinfectant. Rinse every-
thing well with sterile water.
13 Verify and document all cali-
brations, at minimum.
10 Inspect and clean the humidity
generator, at minimum.*
5 Clean drip pan and drain lines.
9 Clean refrigeration system con-
denser.*
8 Verify defrost cycle for below
10°C operation.
-- Change filters (under normal
conditions).
-- Replace filter elements on the
dryer, if applicable. †
-- Rebuild solenoid valves on the
dryer, if applicable. †
-- Replace/repack the desiccant
towers on the dryer, if applicable.
-- Replace the check valve and
o-rings on the dryer, if applicable.
Thermo Scientific
Action 3 Months
*Qualified service personnel only ~ Regular monitoring routines of the various levels in your unit is encouraged.
† Refer to Puregas Dryer manual included in shipping box.
Yearly 2 Years


Between Experi-
ments. More fre-
quent deconta-
mination may be
required, depend-
ing on use and
environmental con-
ditions.

Depending upon
the quality of water
used in the
humidification
system, it may be
necessary to clean
more frequently.
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
Maintenance |
Chapter 10
5 Years 6 Years


Model 3907 & 3948 | 10-3