Neptune 4500 Page 6-3
6.4 VIEW CALIBRATION VALUES (F18)
Note: The values displayed in this procedure are valid only after a successful calibration has been
performed using F16 and F17.
1. While in the Setup mode, scroll to "F 18", then scroll down once using the UNIT/SET key to
enter View calibration menu.
2. The display will momentarily show "CAL 0" followed by a value. This value is the zero
calibration value and should be recorded in the table below. Press any key to continue.
3. The display will momentarily show "CAL 1" followed by another value. This value is the span
calibration value and should also be recorded in the table below. Press any key to return to
upper level (F18).
INDICATOR ZERO CALIBRATION VALUE SPAN CALIBRATION VALUE
S/N:
Table 6-1: Calibration Value Table
6.5 KEY-IN ZERO CALIBRATION VALUE (F19)
Note: This procedure is intended for emergency use only in the case of non-volatile memory loss.
A valid zero calibration value, obtained from a successful F16 calibration procedure, must
be used.
1. While in the Setup mode, scroll to "F 19", then scroll down once using the UNIT/SET key.
2. The display will momentarily show "CAL 0", followed by a flashing zero. Use the directional
keys (shown in Figure 6-1) to adjust the displayed value to the zero calibration value.
3. After setting the exact value, press and hold the UNIT/SET key to save the value.
4. The display will show "E CAL 0" momentarily, then revert back up to F19.
6.6 KEY-IN SPAN CALIBRATION VALUE (F20)
Note: This procedure is intended for emergency use only in the case of non-volatile memory loss.
A valid span calibration value, obtained from a successful F17 calibration procedure, must
be used.
1. While in the Setup mode, scroll to "F 20", then scroll down once using the UNIT/SET key.
2. The display will momentarily show "CAL 1", followed by a flashing zero. Use the directional
keys (shown in Figure 6-1) to adjust the displayed value to the span calibration value.
3. After setting the exact value, press and hold the UNIT/SET key to save the value.
4. If the entered value is greater than zero, the display will show "E CAL 1" momentarily, then
revert back up to F20. If a value of zero is entered, the indicator will briefly show "Err 5", then
revert back to the screen described above in Step # 2.
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