Thermo Scientific 49i, Instruction Manual, Page: 52 / 314

Operation
Range Menu
3-16 Model 49
i
Instruction Manual Thermo Fisher Scientific
C1, C2, and C3 are custom ranges. For more information about custom
ranges, see “Set Custom Ranges” below.
Set Custom Ranges
The Set Custom Ranges menu lists three custom ranges: C1, C2, and C3.
Custom ranges are user-defined ranges. In the standard range mode, any
value between 50 ppb (0.05 ppm) and 200,000 ppb (200 ppm) can be
specified as a range. In the
μ
g/m
3
(mg/m
3
) mode, any value between 100
μ
g/m
3
(0.1 mg/m
3
) and 400,000
μ
g/m
3
(400 mg/m
3
) can be specified as a
range.
• In the Main Menu, choose Range > Set Custom Ranges .
Custom Ranges The Custom Ranges screen is used to define the custom ranges.
The display shows the current custom range. The next line of the display is
used to set the range. To use the custom full-scale range, be sure to select it
(Custom range 1, 2, or 3) in the O
3
Range screen. For more information
about selecting ranges, see “O
3
Range” above.
• In the Main Menu, choose Range > Set Custom Ranges > Custom
range 1, 2, or 3 .
• Use and to move the cursor left or right.
• Use and to increment or decrement the numeric value.
• Press to save the new range.
C3 C3 C3 C3
Table 3-5. Operating Ranges
ppb ppm
μ
g/m
3
mg/m
3
CUSTOM RANGES:
>CUSTOM RANGE 1 550.0
CUSTOM RANGE 2 650.0
CUSTOM RANGE 3 750.0
RANGE AVG DIAGS ALARM