TSI Instruments EVM SERIES, Руководство пользователя

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Placement and Calibration of Sensors
Calibrating CO2 AND O2
EVM Series User Manual
61
5. In the Calibration screen, press
▲
/
▼
Arrows to select CO
2
or O
2
.
Selecting a sensor
Press Up or Down Arrow
CAL soft key
Figure 4-23: Selecting a calibration sensor
6. Press the CAL soft key to open the CO
2
“Calibration/Calibrate” screen. (Allow at least 2.5 minutes
for CO
2
to stabilize.)

For the Set Points, - zero and –span soft keys will appear. Press either Zero Cal or Span Cal
soft key. (See Table 4-2 for more information.)
Soft key Menu
Zero, Span or Exit
Figure 4-24: Calibration CO
2
ready screen

NOTE: If “ – ” (a minus sign) appears in front of Zero or Span, this has not been calibrated.
Alternatively, the “ + ” (plus sign) signifies the cal point has been calibrated.
7. Turn the regulator on. The regulator should have a flow rate of 1.0 L/min.
8. Allow the level to stabilize. For CO
2
, wait at least two minutes to stabilize.

For Zero Cal, the screen will display Zero with a Set soft key.

For span cal, press
▲
/
▼
Arrows on the keypad to adjust the appropriate level.