Specifications

PCA

5.2 Starting a Calibration

Start any calibration procedure by doing the following:

1. Place the probe in an area of fresh air, turn ON the analyzer,

allowing it to cycle through its 60 second warm-up period. During

warm-up, the analyzer’s operation is checked and the sensors are

set to the following ambient conditions:

• Oxygen sensor spanned to 20.9%

• All gas sensors are zeroed

• The pressure sensor is zeroed

2. Any errors detected during warm-up

will be listed on the display

immediately following warm-up.

Correct any errors before proceeding.

Refer to Section 7.3 for a listing of

error messages and their meaning.

3. Display the MAIN MENU by

pressing the MENU (F2) button. If

necessary, press ESC until MENU

appears above F2.

4. Use the ▲▼ buttons to highlight

CALIBRATION, and then press

ENT to display the CALIBRATION

PASSWORD screen.

5. Before calibration can begin a

4-place alphanumeric password

must be entered. Use the ▲▼ and

◄► buttons to enter the password.

(default password is 1111)

6. Press the ENT key to accept the

password. If the correct password

was entered the CALIBRATION

LIST Menu will be displayed.

7. Use the ▲▼ buttons to highlight

the sensor to be calibrated, and then

perform the calibration procedure

for that sensor as described in the

following sections.