Teledyne 7500 - Infrared gas analyzer - operating manual - Manual (Page 50)

50 Model 7500 Instruction Manual
Teledyne Analytical Instruments
“Auto Zero Calibration” screen
Example
In case where setting the auto calibration components
(see Item 6.2.4) to “CH1: enable” and “CH2: enable”.
• Zero calibration
A message, “Zero calibration” blinks at CH1
and CH2.
CAUTION
During auto zero calibration, any key operation is not
permitted other than operations such as key lock ON/
OFF and “Stop Auto Zero Calibration”.
When the key lock is set at ON, even the “Stop Auto
Zero Calibration” cannot be used. To stop “Auto Zero
Calibration” forcedly, set the key lock to OFF and then
execute “Stop Auto Zero Calibration”.