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Innova Series Operator’s Manual
Calibrating the Innova
The Innova offers two calibration options, automatic and manual.
• The
automatic calibration (AUTO CAL)
displays all active
sensors on the display screen at the same time. You can calibrate all
active sensors simultaneously using a multi-gas cylinder available
from Thermo
Fisher Scientific. The concentrations set in the Auto
Cal Gas Value screen must match the multi-gas mixture, see Chapter
4, User Program, Setting Auto Cal Gas Values.
• During the
manual calibration (MAN CAL)
only one active sensor
is displayed on the screen at a time, only one sensor is calibrated
during a manual calibration. It is recommended to use a single gas
cylinder for manual calibrations. During a manual calibration you
may manually change the concentration of the gas before the gas is
applied. The default value is that set in the Auto Cal Gas Values
screen, see Chapter 4, User Program, Setting Auto Cal Gas Values.
Auto Calibration
WARNING
Calibrate the Innova in a “fresh air” environment (environment
known to be free of combustible and toxic gases and of normal
oxygen content).
NOTE
If you use the automatic adjustment method to calibrate the sensor,
make sure the gas cylinder contains the same concentrations of the
target gas as the values set in the
“AUTOCAL GAS VAL”
menu, see
Chapter 4, User Program, Setting Auto Cal Gas Values.
1. Hold down the
AIR
button for 3 seconds until the display counts down
and the bar graph starts to scroll, then the display will read
“DONE”
once the “fresh air” reading for all active sensors is complete (20.9%
for oxygen, 0 for all other sensors).
NOTE
After you complete the fresh air adjustment, a
“XXX”
may appear on
the display screen in place of a sensor reading. The buzzer and lights
will be on steady, see Calibration Alarms section at the end of this
chapter to respond to this message.
