Bacharach PCA 3 Manual De Propietario
PCA
3 Manual
76
0024-9472 Rev 2
6.11. CO
HIGH
Sensor Calibration
This procedure spans the optional carbon monoxide high sensor (4,001 to
20,000
20,000
ppm) to a known gas level.
6.11.1. Material Required
•
Calibration Kit
(P/N 0024-7059)
•
Gas Cylinder
(4,000 ppm CO in Air, P/N 0024-1155)
Figure 6-12. Gas Sensor Calibration Equipment
6.11.2. Procedure
1. If not already done, turn ON the analyzer and display the
CALIBRATION LIST screen (refer to Calibration on page 62).
2. Use the
▲▼ buttons to highlight CO-HI, and then press ENT to display
the CALIBRATE CO-HI screen.
NOTE: “Measured” is the current CO reading, while
“Applied” is a known CO level that will be applied for
calibration purposes.
“Applied” is a known CO level that will be applied for
calibration purposes.
3. Attach a 4,000
ppm CO cylinder to the regulator of the calibration fixture
shown in Figure 6-12 on page 76.
4. Use the
▲▼ and ◄► buttons to enter an applied value that exactly
equals the concentration on the CO cylinder.