Omega cl310 User Manual page 55

8. Document Mode
8.1 Introduction
Document mode allows an instrumentation technician to create
repeatable calibration tests for up to 50 tags while in the field, to
download predefined calibration tests from a PC database for up to
50 tags before going to the field, or some combination of both types
up to a maximum of 50 tags. Each test may consist of 1 to 21 user
selectable test points, and may be repeated as many times as
necessary to complete adjustment and calibration of the tag. Two
sets of test results are stored for each tag, an initial As Found set
stored during the first test performed, and a final As Left set stored
during the last test performed. If only a single test is required to
confirm a tag's calibration, both sets of test results will be the same.
When creating a test in the field, the technician selects the calibrator
input and output to be used for the test before the As Found test is
started. These include the standard measure and source types of the
calibrator, plus two special types, manual input and manual output.
Manual input and output extend the versatility of the calibrator by
providing a means for the technician to key in data from auxiliary
measurement or source equipment, or from field devices that can
not be physically connected to an instrument, such as the dial
position of a panel meter. The calibrator output points are entered
one at a time during the As Found test. The point values may be
entered in any order, but this is usually done as a sequence of
ascending values, descending values, ascending followed by
descending, or vice versa. After each output is generated, the
technician waits for the input to settle. Once settled, he presses a
function key to prompt for manual entries if any, to save both the
output and input values, and finally to step to the next point. Once all
required test points have been entered, a different function key is
pressed to end the As Found test by prompting for the tag
identification data and the test validation limit, and automatically
adding the real time clock time stamp. If test validation was
selected, the technician has the option of displaying the As Found
test results.
To perform a downloaded test, the technician selects the tag to be
tested from a list on the display for the As Found test. The calibrator
cycles through the test points one at a time automatically generating
the As Found (downloaded) output value in the case of a calibrator
source type, or displaying the As Found value of a manual output
type. Once the input has settled, the technician presses a function
key to prompt for manual input entry if any, to save both the As
Found output and input values, and finally to step to the next point.
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