Fairbanks H90-5200-A Digital Instrument - Manual (Page 13)

3. Weight Units Selection
The display will read “ U “, and one or more of the units indicator lights may be ON.
The lighted indicator(s) show the current selection(s). Units of lb,kg, lb/kg or custom
(no units indicated) can be selected, depending on the operators requirements.
Custom or “no” units are not front panel selectable
a. Primary Weight Unit Selection
This program step will only appear if lb/kg was selected in step 2. The display
will read “ PU “ and ONE of the units indicator lights will be ON. The light
indicates the primary weight unit. The primary weight unit is the weight unit
the scale is calibrated in and the units the scale will start in when it is powered up.
4. Grad Size Selection
This display will read “GSxxxx”, where the “xxxx” is the grad size. The grad size
displayed is for the primary units selected in program step 2a. Grad sizes for other
weight units are dependent on the primary unit grad size and are not independently
programmable.
Grad sizes from 0.0001 to 50 can be selected. If an unacceptable grad size is
selected, an error message “ElL” or “E1H” will be displayed. A grad size is
unacceptable IF The number of divisions for any weight unit is less than 100 or
more than 10,000 (number of divisions = capacity/grad size). These error
messages and inhibits will only be displayed when programming through the front
panel.
5. Balance / Motion Band Selection
The display will read “bALx.x”, where “x.x” is the width of the motion band in
divisions, “0.5,1.0, 2.0 or 3.0”. If the current A/D reading exceeds the digitally
filtered output by more than the motion band for 1/2 second, there is “motion” on
the scale and the instrument will switch to the fast filter mode, where the display
tracks the input.
If there is “motion” on the scale, zero, autotare and print operations are inhibited
until “motion” stops.
6. AUTOZERO Tracking (AZT) Selection
The display will read “AO x.x”, where the “x.x” is the width of the AZT band in
divisions. AZT enables the instrument to automatically zero off small changes in the
zero balance of the scale. For an AZT to occur, the weight must be within the AZT
band for a time defined by AZTD (see 7. Auto Zero Time Delay).
7. Auto Zero Time Delay
The display will read “AOtd x”, where x is 1, 2, 3, 4, 5 or 6. The Auto Zero Time
Delay is the number of seconds that the weight must be stable in the AZT band
before an Auto Zero operation will take place. AZTD will not be offered unless
AZT was enabled in the previous step.
50515 13 Issue #2 4/04