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“Multiplier:” The Interim Value is multiplied by the value in this field. The Multiplier may be set to 1,
2, 5, 10 or 100. The Multiplier sets the resolution (i.e., a multiplier of 2 sets the resolution to 2 counts).
“Reference:” The Interim Value may be referenced to another Function. The value of the Function
selected in this field will be added (+) or subtracted (-) from the Interim Value. Differential
measurements can be made by subtracting one Function from another. Temperature measurements
based on thermocouple probes must be temperature compensated by referencing the “T. COMP”
(temperature compensation) Function.
“Allow Negative Readings:” Negative readings
should not be allowed on functions such as RPM,
M.P., most pressures, fuel levels, etc. If negative
readings are not allowed, negative values will be
displayed as zero.
“Filter:” The Interim Value may be filtered. A
filter increases the response time (shown in the
“seconds =” field) and reduces jumping.
“Dejitter Level (FFT):” A unique dejitter
algorithm may be applied to the Interim Value. A
Dejitter algorithm removes jumpy readings without
increasing response time.
“Truncate (# digits):” The last one or two digits
on the Interim Value may be truncated (displayed as zero).
“Decimal Places:” This field only allows you to place a decimal point in the display. It does not
change the calibration of the Interim Value.
“Snap to zero below:” If the Interim Value drops below the value set in this field, the Interim Value
will be set to zero.
“Probe powered by:” If the probe assigned to the EDC Input (selected above) is powered by the
aircraft bus, the readings may change as the bus voltage changes. By selecting “BUS” in this field the
MVP will perform a ratio metric calculation with respect to the bus voltage. This will eliminate reading
changes due to bus voltage variations. Most E.I. probes and transducers are not power by the bus but
Trim, Flaps and Annunciators should be powered by the bus.
“Reset values back to factory default?” Each Probe has a factory default setting for each of the
calibration parameters listed above. If any parameter has been changed from the factory default, the
changed parameter will be displayed in yellow. This field can be used to reset the calibration
parameters back to the factory defaults.
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