Zero Calibration - MSA ALTAIR 5X Manual De Uso

Zero Calibration

(1) Press the  button for five seconds in Normal
Measurement page.
 ZERO screen displays.
To skip the ZERO procedure and move directly to
the span calibration procedure, push the  button. If
no button is pushed for 30 seconds, the device
prompts user to perform a SPAN calibration before
device returns to the Normal Measurement page.
To perform ONLY a Fresh Air Setup at this time,
press the q button. The device then performs a
Fresh Air Setup as described in chapter 3.2. When
the Fresh Air Setup is complete, the device returns
to the normal Measure screen.
Press the  button to confirm the ZERO
(2)
screen, i. e. to execute zero calibration.
 The message "SENSOR REFRESH"
displays, followed by the message "ZERO
CALIBRATION".
 The "REFRESH" message does not
appear if a catalytic combustible sensor is
not installed.
 ZERO calibration starts.

A progress bar shows the user how much
of the calibration has been completed.
During the first moments of a ZERO calibration, the
combustible sensor reading may be replaced by a
moving display of "PLEASE WAIT". This is normal.
 After the ZERO calibration is completed
the device displays either
"ZERO CALIBRATION PASS"
or
"ZERO CALIBRATION FAIL".
 Only if the device passes the zero calibra-
tion the SPAN screen displays.
ALTAIR 5X/ALTAIR 5X IR
Operation
US
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