Photometer Setup Menu - Thermo Scientific 146i Instruction Manual

Operation

Photometer Setup Menu

Photometer Setup
3-30 Model 146i Instruction Manual
The Model 146i can be equipped with an optional internal photometer,
which is used to measure concentration of ozone.
Menu
The Photometer Setup menu sets up the photometer.
In the Main Menu, choose Photometer Setup.
●
PHOTOMETER:
>RANGE
Range
The Range menu allows the operator to view the gas units (always in ppm),
to select the O
In the Main Menu, choose Photometer Setup > Range.
●
RANGE:
>RANGE
O Range The O Range screen defines the concentration range of the analog
3 3
outputs. For example, an O
concentrations between 0 and 5 ppm. Available operating ranges include:
0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 5.0, C1, C2, and C3.
C1, C2, and C3 are custom ranges. For more information about custom
ranges, see
The display shows the current O
to change the range.
In the Main Menu, choose Range > O3 Range.
●
AVERAGING TIME
CALIBRATION FACTORS
CALIBRATION
OPER MODE DIAGS ALARM
range, and to set the custom ranges.
3
GAS UNITS
SET CUSTOM RANGES
OPER MODE DIAGS ALARM
range of 0–5 ppm sets the analog output to
3
"Set Custom Ranges" below.
PPM
5.00
range. The next line of the display is used
3
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