Maintenance
91518 Multigas Analyzer Service Manual
4-20
Figure 4-17: GAS - CALIBRATION menu
SERVICE CAL Menu Keys
ZERO
— touching this key leads to the ZERO confirmation menu. Pressing the YES key performs a zero.
CAL GAS
— Touching this key leads to the CAL GAS confirmation menu. Pressing the YES key performs a
calibration of the agent, N
2
O, and CO
2
sensors and displays the CAL GAS IN PROGRESS message. The
Spacelabs Healthcare calibration gas supply must be present throughout the entire procedure. After the gas
calibration is complete, compensation values will be stored in the nonvolatile memory (NVRAM). Pressing the
NO key will return to the
Service Cal Mode
menu.
If the gas calibration fails, the analyzer will display the CAL GAS FAILED message and will remain in this mode
until a successful calibration is completed or until the bench is turned OFF. When the calibration failed
message is displayed, touching the GAS key and then the NORMAL SCREEN key removes the message from
the waveform zone and stops the alarm tone. However, the message will continue to display on the monitor’s
prompt line. Whenever a span failure occurs, the previous calibration factors are not lost. The analyzer
continues to function and report the gas values, but the full accuracy of the values is not guaranteed. If the cal
gas span is successful, the analyzer will return to the numeric display mode.
The CAL GAS key is disabled whenever the pumps are stopped because of one of several general messages,
when the sampling is suspended, or when another span/calibration is in progress.
PREV PAGE Key
— Cycles forward through the service menu pages.
NEXT PAGE Key
— Cycles backward through the service menu pages.
PRINT PAGE Key
— Sends a bitmap image of the
Service Cal Mode
menu to a recorder or system printer.
GAS - SERVICE CAL ***WARNING*** The patient is not being monitored
LIMITS
ALARM
FREEZE
ON OFF
SETUP
SERVICE
GAS - MAIN MENU
SUSPEND
SAMPLING
CAL
YES
NO
CAL
NEXT
PAGE
PAGE
PREV
YES
NO
ZERO
CAL
Hidden key:
Touch five times
to display
SERVICE CAL menu
GAS - CALIBRATION MENU
GAS
PAGE
