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Chapter 5. Advanced Programming
58 TMO2D User’s Manual
5.3 Set Significant Digits?
The first option in the Factory Setup Menu, Set Significant Digits?, enables you to modify the resolution of the gas
reading on the TMO2D display, when you select display in PPM ranges. You can select values from 2 to 4; the default
setting of 3 suppresses one significant digit, a setting of 2 suppresses two digits, and a setting of 4 displays the full
resolution of the calculated gas reading. However, while the Significant Digits option affects the display, the analog
outputs retain full resolution at all times.
Note: This option applies only if you select display in ppm ranges. If the TMO2D is set up for the 10 ppm range, it
defaults to 2-digit resolution. However, you can change the significant digits in this menu.
5.4 Select Background?
The
Select Background? option enables you to select a background gas label if background compensation is active
and the LCD has been programmed to display the background gas.
Note:
Background compensation and display apply only for a TMO2 oxygen transmitter. If the Auto Calibration
mode is active, the TMO2D displays calibration status instead of the background gas.
FACTORY SETUP MENU
Set Significant Digits?
Press [YES] to set the number of digits desired.
Significant Digits:
2-4 [3]:
Use the numeric keys to enter the desired number of digits. Press [YES] to enter the
number, and [YES] again to confirm the entry.
FACTORY SETUP MENU
Set Significant Digits?
Press [NO] to proceed to the Set Background option.
FACTORY SETUP MENU
Select Background?
Press [YES] to select the background gas label.
Select Background Gas:
%Bkgd?
Use the [NO] or arrow key to move brackets to the desired entry. The program
offers five label choices: Bkgd, H2, N2, SO2, and CO2. Press [YES] to confirm the
entry.
FACTORY SETUP MENU
Select Background?
Press [NO] to proceed to the Select Tracking? option.