Teledyne LGA-3500 - Laser Gas Analysis system - Manual (Page 61)

Laser Gas Analyzer Operation
Teledyne Analytical Instruments 47
• Backup coefficient: Save current calibration coefficients as
backup. The operator can choose to backup any set of calibration
coefficients they are satisfied with. The Model 3500 has
calibration coefficients backed up before shipping.
• Restore coefficient: When the users are not happy with the
current calibration result, and are unable to get good calibration
results, they can restore the old more satisfying backup
calibration coefficients.
4.3.4.1 A DJUST Z ERO :
Zero: Press “SET” when the cursor is on “Zero” button, the system
enters the Pre zeroing menu (Figure 4.24).
Figure 4.24 Pre zeroing sub menu
Choose “Accept” to accept the parameters, and the system starts
zeroing (Figure 4.25). The zeroing gauge bar shows the progress of the
process.