Thermo Scientific 146i, Instruction Manual

Page: 78 / 340

Operation
Program Menu
3-36 Model 146 i Instruction Manual Thermo Fisher Scientific
The Calibrate O
3
Coefficient screen is used to automatically adjust the O
3
coefficient and enter the span concentration. The display shows the current
O
3
concentration reading and the current O
3
range. The next line of the
display is where the O
3
calibration gas concentration is entered.
It is important to note the averaging time when calibrating. The longer the
averaging time, the more accurate the calibration will be. To be most
accurate, use the 300-second averaging time.
●
In the Main Menu, choose Photometer Setup > Calibration > Cal O3
Coef .
CALIBRATE O3:
O3: 0.803
SPAN CONC: 0000.80 4 ?
§¨ MOVE CURSOR
©ª
CHANGE VALUE
ƒ
SAVE
OPER MODE DIAGS ALARM
The Program menu sets the Model 146i’s internal computer program to
conduct a series of calibration events at preset times and durations. Up to
32 calibration events can be programmed. Next Event is read only and
shows the status of the next event number and time, there is no setting
screen.
Each event can be assigned gas, span, ozonator and permeation levels,
photometer mode, and event set time. This function is only available when
the instrument is NOT in service mode. If the service mode is active when
the next cycle time occurs, the program will not be triggered. Turn service
mode OFF to run next program cycle time. For more information on the
service mode, see “
Service Mode ” later in this chapter.
Note When events are running, none of the settings may be changed via
the front panel interface, except for the program cycle enable/disable,
which may be toggled to cancel the current program.
▲
●
In the Main Menu, choose Program .
Calibrate O
3
Coefficient
Program Menu