Fluke 750SW, Руководство пользователя

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DPCTrack2
Users Manual
15-12
15.2.2.5 Output Signal Information
15.2.2.5.1 Output Type
Entering the Instrument’s Output Type is done in the same manner that you selected the
Input Type . Both the Input and Output Type drop-down lists will contain the same
selections. If the signal type needed is not yet on the list, you can add it through the
“Lists” menu. You may enter up to 50 characters in this field.
15.2.2.5.2 Out Resolution
When adding a new test point group, the value shown in the Out Res field will default to
the same value set in the Company Record screen, see Chapter 9. To select a different
output resolution, select it from the Output Res field’s drop-down list. As you select
different resolutions, you will notice that the Out Low Range and Out High Range fields
will adjust accordingly.
15.2.2.5.3 Out Low Range & Out High Range
The Out Low Range and Out High Range fields are used to record the Instrument’s full
output range. Any numeric value may be entered into each of these fields. If the
Instrument’s stated accuracy uses “Percent of Range” in any way, it is very important that
you enter the correct output range for the device since this is used in conjunction with the
Range Acc % to calculate the item’s low and high limits.
15.2.2.6 Stated Accuracy
There are five stated accuracies that come standard with the system. The default value is
Percent of Range
15.2.2.6.1 Percent of Range
Selecting “Pct of Range” will instruct the system to calculate the high and low limits
from a percent of the Instrument’s full output range. For example, 1% of a range of 0-100
psig would make the limits plus or minus 1 psig at each test point. To use this stated
accuracy, you must fill in the Out Low Range and Out High Range fields. (Note: This
may also be used in conjunction with a Plus/Minus value.)
15.2.2.6.2 Percent of Reading
Selecting “Pct of Reading” will instruct the system to calculate the high and low limits
from a percent of each test point’s output value. For example, 1% of a test point of 50
Deg C would make the limits for that test point plus or minus 0.5 Deg C. 1% of a test
point of 75 Deg C would make the limits for that test point plus or minus 0.75 Deg C.
(Note: This may also be used in conjunction with a Plus/Minus value.)
15.2.2.6.3 Percent of Reading Range
Selecting “Pct of Reading Range” will instruct the system to use a combination of the
Range Acc% and the Reading Acc% to calculate the high and low limits. For example,
imagine you have a test point of 10 GPM, with an output range of 0-100 GPM. With a
Range Accy% of 1% and a Reading Acc% of 2%, the high and low limits would be plus
or minus 1.2 GPM. (1% of 0-100 = 1 and 2% of 10 = 0.2. Therefore, 1 + 0.2 = 1.2
making the low limit 8.8 GPM and the high limit 11.2 GPM) to use this stated accuracy,
you must fill in the Out Low Range and Out High Range fields. (Note: This may also be
used in conjunction with a Plus/Minus value.)
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