meter).
If front panel meter does not cycle, contact the USASL for
guidance. If periodic cycling is evident, the transport standard shall then
be connected to a 115-volt ac line power in the laboratory environment area
in which measurements are to be made.
The batteries of the transport
standard shall be checked and recharged as necessary to bring them to a
full-charge condition.
The battery charge switch should be placed in the
"Lo-Charge" position during normal operation.
(3) The transport standard shall be allowed to stabilize in the
laboratory environment for at least 24 hours before observations are begun.
The first set of observations will then be made.
The using instructions
contain a typical format for a four-cell by four-cell comparison which
consists of 16 observations taken in the order specified in the observation
sheet. For clarity and to eliminate confusion in the measurement process,
the transport standard cells are designated 1 through 4 and the laboratory
standards A through D. The first set of observations shall be transmitted
to the USASL immediately for analysis to determine a go or no-go condition
for the transport loop.
(a) A
GO
condition
will
be
assumed
by
the
AACL
and
intercomparisons shall continue at a rate of two per week until notification
by the USASL.
(b) If a NO-GO condition exists, the USASL will advise the AACL to
discontinue the observations and will provide further instructions as
necessary.
(4) Upon completion of the observations at the AACL and return of the
transport standard to the USASL, the cell values shall be redetermined with
respect to the Army Volt.
If this redetermination and the ACF
intercomparison data are conclusive, a test report will be completed and
transmitted to the AACL calibrating the enclosure(s). A DA Label 80 will be
prepared by the AACL referencing the test report and the enclosure.
(5) If upon return of the transport standard to the USASL, either the
cell value redetermination or the observation data are found to be
inconclusive, a rescheduling for calibration will be made and the procedure
repeated.
d. Internal Surveillance of the AACL Saturated Cells
(1) Surveillance of the reference and working groups of cells will be
maintained by the method outlined in the TB. Surveillance will consist of
monthly comparisons of the reference and working cells and plotting the
computed value of each cell and the mean of the groups.
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