Environmental Express AutoBlock II - Manual (Page 26)

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Failure to adhere to AutoBlock maintenance instructions and/or requirements can
void all warranties and result in damage to the AutoBlock, loss of samples and/or
losses not covered by the Warranty. See warranty, section 1.3.
Maintenance Indicators
Two weeks prior to the date part(s) require replacement, the PDA will issue a
notice of such. This will give the analyst ample time to schedule the required
maintenance, and receive delivery of replacement parts if necessary. Upon
completion of the necessary maintenance, click the box of the corresponding item.
A message verifies that the step was actually taken.
For warranty purposes and repair issues, Environmental Express tracks all
replacement parts by the serial number of the corresponding AutoBlock.
Note: Upon initial installation, check the “Done” column. That date
should correspond closely to the date of installation. If not simply press and
acknowledge each maintenance item.
(A) HEPA Filter Replacement
The HEPA Filter installed in the top of the unit has under normal
operating conditions, a life expectancy of 12 months. The PDA will
prompt the analyst to change and acknowledge the replacement of this
filter. Failure to replace the filter at this interval may void any warranty
written or implied. Catalogue # for the HEPA filter is SC868.
(B) Injection Arm Tubing Kit
This kit supplies the tubing and connection fittings for the lines going
from the 6-way splitter to the injection arm. These tubes should be
replaced every 12 months under normal conditions. Prior to installing
these lines, back flush the splitter using a syringe and DI water. Allow 1
to 2 hours to complete this task of replacement.
(C) Peristaltic pump tube
The Teflon Tube in the peristaltic pump should be replaced once a year.
This frequency may need to be increased due to excessive or continuous
use of concentrated acids. When the unit is operating, the pump is
designed to automatically rotate forward and backward slightly to increase
the life of the tubing.
(D)
Electronic Cooling Filter
The small black air-intake filter located on the back panel keeps large
amounts of dust from depositing on the electronics located in the rear of
the AutoBlock. Should this become clogged with dust, costly electronic
components can overheat or be damaged by acid vapors. To clean, remove
the shroud, then wash and dry. Return the filter after is has completely