Teledyne 7500ZA operating instructions Example

NDIR Gas Analyzer Settings and Calibration

1.Select < User mode > → < Calibration parameters > → < Zero calibration >. The Zero

Calibration screen will appears as shown.

2.Select the Ch you want to change using the UP or DOWN key and then press the ENT key. The setting content becomes highlighted.

3.Choose whether you want to set the zero values all together or individually by toggling “at once” or “each” with the UP or DOWN key. Each channel that

is set to “at once” will be zero-calibrated at the same time.

4.When “each” is selected, the specific Ch (component) can be selected and zero-calibrated individually. Press the ENT key after making the choice and the specified calibration is performed.

To close the Manual Zero Calibration screen, press ESC. This will return the display to the previous screen.

Note: Pressing ESC during an entry (before pressing ENT) will abort the entry leaving the previous entry intact.

Example:

Set each Ch (component) to either “each” or “at once” using the steps above.

∙Setting “each”

Select the Ch (component) on the manual zero calibration screen and then perform the zero calibration.

∙Setting “at once”

In a manual zero calibration, Ch (components) for which “at once” are selected will simultaneously be zero-calibrated.

Teledyne Analytical Instruments 39