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BAM 1020-9800 Manual Rev W.docx
Page 22
F3
“Error Recall”:
This key allows the user to view the errors logged by the BAM
1020. The errors are sorted by date. The last 12 days which contain error records are
available, and the last 100 errors can be viewed.
F4
“Data Recall":
This key allows the user to view the data stored in the BAM 1020,
including concentrations, flow, and all six external channels. The data is sorted by
date, and the user can scroll through the data hour-by-hour using the soft-keys. Only
the last 12 days which contain data records are available for viewing in this menu.
F5
“Transfer Module”:
This key is used to copy the memory contents to an optional
data transfer module. The transfer module option is obsolete and no longer used.
F6:
This key is not assigned a data function.
3.4 Filter Tape Loading
A roll of Met One glass fiber filter tape must be loaded into the BAM 1020 for sampling. A roll
of tape will last more than 60 days under normal operation. It is important to have spare rolls
available to avoid data interruptions. Some agencies save and archive the used filter tape,
although the used sample spots are not protected from contamination, and are not marked to
indicate the sample hour or site. Chemical analysis may be affected by the binder agent in
the tape.
Used filter tape should never be “flipped over” or re-used! This will result in
measurement problems. Loading a roll of filter tape into the BAM 1020 is a simple matter
using the following steps:
1. Turn on the BAM 1020. The BAM 1020 should automatically raise the sample nozzle.
2. Lift the rubber pinch roller assembly and latch it in the UP position.
3. Unscrew and remove the two clear plastic reel covers.
4. An empty core tube
MUST
be installed on the left (take-up) reel hub. This provides a
surface for the used tape to spool upon. Met One supplies a plastic core tube to use
with the first roll of tape. After that, you can use the empty core tube left over from the
previous roll. Never fasten the filter tape to the aluminum hub.
5. Load the new roll of filter tape onto the right (supply) reel, and route the tape through
the transport assembly as shown in the drawing. Attach the loose end of the filter tape
to the empty core tube with adhesive cellophane tape or equivalent.
6. Rotate the tape roll by hand to remove excess slack, then install the clear plastic reel
covers. The covers must be tight in order to properly clamp the tape in place and
prevent slipping.
7. Align the filter tape so that it is centered on all of the rollers. Newer units have score
marks on the rollers to aide in visually centering the tape.
8.
Unlatch and lower the pinch roller assembly onto the tape. The BAM 1020
cannot automatically lower the rollers, and the BAM 1020 will not operate if the
pinch rollers are left latched in the up position!
9. Press the TENSION soft-key in the TAPE menu. The BAM 1020 will set the tape to the
correct tension and alert you if there was an error with the process. Exit the menu.