Bacharach PCA 2 24-9448 - Manual (Page 80)

Instruction 24-9448 5-14
Calibration
4. Use the and buttons to enter an
Appled value that exactly equals the concen-
traton stamped on the CO cylnder.
The calibration range is from 250 to
11,000 ppm. An attempt to calibrate out-
side this range will cause the message “Bad
Calibration Wrong CAL Entry” to appear in
the following step.
5. Adjust regulator for a flowmeter ndca-
ton of approxmately 2 SCFH. Wat untl
the Measured readng stablzes (approxmately 3 mnutes), and then
press
ENT
to calbrate the CO Measured value to that of the Appled
value. The message “Good Calbraton” should brefly appear followed
by the CALIBRATION LIST screen beng re-dsplayed.
If the sensor’s output is low, but still usable, then the message “Good
Calibration WARNING Low Sensor” will appear. The sensor will now
be marked as being Low in the DIAGNOSTICS screen.
If the sensor’s output is too low to be usable, then the message “Bad
Calibration Sensor End of Life, Entry Not Saved” will appear followed
by the CALIBRATION LIST screen being re-displayed. The sensor will
now be marked as being BAD in the DIAGNOSTICS screen.
6. Turn OFF regulator and remove gas cylnder.
CALIBRATE CO-HI
Measured 3895 PPM
Applied 4000 PPM
06/28/06 09:45:30 AM
PRINT
F1 F2 F3
Figure 5-2. Gas Sensor Calibration Equipment
Parts:
1. Gas Cylinder
2. Regulator *
3. 3/16" I.D. Tubing *
4. Tee *
5. Flowmeter *
6. Barbed Hose Connector *
* Part of Calibration Kit 24-7059
POWER
P
T-STACK T-AIR
GAS
Leave Top
Port Open
GAS Port