Teledyne 7500ZA - Infrared Gas Analyzer - Manual (Page 75)

NDIR Gas Analyzer Settings and Calibration
Teledyne Analytical Instruments 59
Auto Zero Calibration Screen
Example
With Ch1 and Ch2 set to enable for auto
calibration (see Section 6.2.4):
• Zero calibration
A message, “Zero cal.” blinks at Ch1
and Ch2.
Caution: During auto zero calibration,
the only key operations allowed are key lock
ON/OFF and “Auto Zero Calibration Stop.”
When the key lock is set at ON, even the “Auto
Zero Calibration Stop” cannot be used.
To forcibly stop “auto zero calibration”, set the
key lock to OFF and then execute “Auto Zero
Calibration Stop.”