EMS 5003 Operator's Manual page 11

The gas analyzer should be checked periodically for accuracy. For normal shops using
the analyzer this would be approx. 3-6 months, for higher usage approx. every 1 month or more.
The analyzer can be calibrated in the field. In order to perform the calibration procedure you will
need a bottle of calibration gas and a calibration kit (Figure 17). The calibration Kit (EMS-5500)
can be purchased from EMS or your local distributor. The recommended calibration gas is Bar 97
Low and can be purchased from EMS, Part No.EMS-5502; BAR 97 LOW.
Calibration Procedure:
1. To begin the calibration procedure depress the "Menu" button on the Home sampling
screen. The main menu screen will show you the "Calibration" button (Figure 16) Press
the "CAL" button and the display will go to the calibration screen and show the stored
calibration gas values highlighted in white box (Figure 18). Compare these numbers to the
calibration gas bottle. If the numbers do not match, change the values by pressing each
gas value box,a key pad will open ( Figure 19) press Back to clear the value, and enter the
new values for each gas as needed and press the Ent, enter button. Once the values are
changed press the "Accept" button. NOTE: In 4 Gas mode the Nox window will not appear
or be calibrated in the calibration routine.
Figure 18
Calibration
Figure 17
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Figure 19