User`s guide

Operation
125
Auxiliary RS-232—This port is available if you have the options
board installed. This is for future development.
Date/Time—Select the desired date format and then enter the
correct date. Next, enter desired time format and then enter the
correct time. Press OK to accept the new time.
Loading Tubes
Loading the ATD Carousel
During primary desorption, the carrier gas will flow through the
sample tube from the bottom to the top. It is therefore essential that
sample tubes that have been used for air monitoring are loaded with
their sampling ends (double grooved end) upwards. This will ensure
that the sample is desorbed through the same end of the sample tube
through which the sample was collected and thus, the volatiles will
not pass through the whole length of the adsorbent bed.
Each PerkinElmer tube is labeled with a unique serial number for
your convenience and for improved GLP tracking. Any additional
identification of individual tubes should be done by marking the
pen-clips only.
It is essential for correct operation of the ATD carousel that the
external surfaces of all sample tubes are free from extraneous
material. Such material may cause the tubes to stick within the tube
handling mechanism. All material, for example residues from
identification labels or other marking methods, must be completely
removed before tubes are loaded onto the carousel.
Stainless steel sample tubes with pen clips may be loaded onto the
carousel. The tube must be placed into the carousel with the pen clip
facing in, toward the center of the carousel. Whether or not a pen
clip is fitted on the tube, it is essential that the double grooved end
of
the tube is always pointed upwards
.
The pen-clip can be removed from a sample tube by inserting a
wide-bladed screwdriver between the clip and the tube, close to the
CAUTION
Labels must not be attached directly to the tubes