Bacharach PCA3 Especificaciones descargar pdf (Pagina 66)

PCA



3 Manual

66 0024-9473 Rev 4

CHAPTER 6. CALIBRATION

IMPORTANT: Before performing any calibration procedure ensure

that new batteries are installed or use the optional AC power

adapter. Also ensure that the analyzer is at room temperature and

will be sampling fresh air when turned ON.

6.1. B-Smart Sensors

The PCA

3 uses Bacharach’s B-Smart

Sensor technology for CO

LOW

, CO

HIGH

NO, NO

, and SO

. The B-Smart

Sensor is marked with a 10- or 14-digit

calibration code that can be entered in the instrument’s calibration screen via the

keypad, or with the Fyrite

User Software.

Benefits of the B-Smart

Sensors include the following:

•

New sensors can be installed without applying gas for calibration.

•

Sensors can be pre-calibrated and installed when needed

•

Sensors can be moved from one analyzer to another.

•

The analyzer’s diagnostics screen shows what sensors are installed,

and their current end-of-life condition (Good, Low, Bad).

B-Smart

sensors should be calibrated by an authorized Bacharach Service

Center (see Service Centers on page 99) every 6 months to 1 year to assure that

the analyzer continues to meet its published accuracy specifications. B-Smart

sensors, however, can be calibrated in the field if your facility has the necessary

equipment and qualified personnel to perform the procedures described in the

following sections.

6.2. 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 page 93 (Error Messages) 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.

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