Noise; Level 3 Configure Menu; Polycoef (Polynomial Coefficients) - Ametek 5000 Instrument Manual

16 Enable span adjustment during auto-cal cycle
32 Make outputs track during auto-cal/auto-zero
64 Display negative moisture value as zero
128 Use non-verbose display mode for display line 4; system alarms only will be displayed (no
informational messages)
Example: Features to be enabled are Auto-Range (bit value = 1) and Output Tracking (bit value =
32).
The new value for the Flags1 = 1 + 32 = 33

Noise

Noise spikes that may occur in low absorbance applications can be eliminated using the Infinite Im-
pulse Response Filter formula. The values entered here are noise smoothing coefficients between 0.1
and 1.0. The noise smoothing value is factory set to 1.0 which essentially disables noise smoothing;
setting noise factors to 0.1 will result in the smoothest data, but will significiantly reduce response
time. Enter new noise smoothing coefficient when the "New Value?" prompt is displayed. Press
to save change and return to the Noise Menu; press
ENTER
Note that infinite inpulse noise filtering is disabled when enchanced noise smoothing (boxcar
averaging) is enabled. Refer to Page 4-7, Flags2 for more information on enabling enhanced noise
smoothing.

Level 3 Configure Menu

Figure15 shows the sub-menus of the Configure Menu when the Level 3 password has been en-
tered. Scroll up, down, left, and right until desired menu item is highlighted; press
tinue.
The constants and variables which may be altered in the Level 3 Configure Menu greatly affect

analyzer function and signal processing. The default values for many of these variables are deter-
mined during factory calibration of the instrument. DO NOT change the values of system con-
NOTE
stants and variables without full understanding of their effects on analyzer function and output
data.

PolyCoef (Polynomial Coefficients)

The polynomial coefficients used in the moisture concentration calculations vary from instrument
!
to instrument and are determined during factory calibration. With the exception of Coefficient D,
CAUTION
these values should never be changed unless factory service is performed or a major component is
changed.
Select this menu item to alter the values of the polynomial coefficients contained in the formula used to calculate
moisture concentration.
• Press Cancel to scroll through the variables PolyCoeff_X where X = 0 through 5, A - D.
• Enter the new coefficient value when the "New Value?" prompt is displayed.
The coefficients must be entered in decimal form i.e. 1234.56. The calibration report shows
to quit.
CANCEL
Software Configuration 4-5
to con-
ENTER