SC-04
Appendix A: Maintenance Mode • 75
Appendix A: Maintenance Mode
Overview
This appendix describes the SC-04 in Maintenance Mode. The SC-04 is factory-set to suit
most applications. Update settings in Maintenance Mode only if required for your specific
application. Maintenance Mode items and their factory settings are listed in Table 15 below.
Table 15: Maintenance Mode Menu Items
Maintenance
Mode
Menu Item
Description
GAS CAL (pg.78)
Perform an air adjust, perform a span adjustment, change the calibration values.
AIR
Perform a fresh air adjustment.
A-CAL or
E-CAL
depending on
E-CAL
User
Mode setting
Perform a span adjustment and set the calibration gas concentration.
A-CAL (or
E-CAL)
Perform an automatic span adjustment.
START
Begin the warmup sequence and enter Measuring Mode.
CAL-P
Set the calibration gas concentration.
ESCAPE
Return to the
A-CAL
item in the
GAS CAL
menu.
ESCAPE
Return to the
GAS CAL
item in Maintenance Mode.
GAS.TEST
(pg.78)
Apply gas to test sensor response and observe alarm indications without an alarm event
being recorded.
SEN.DATE
(pg.79)
View and/or set the replacement date for the sensor and the batteries.
BUMP (pg.80)
Perform a bump test.
ON
(factory setting): The SC-04 remains in alarm until the alarm condition passes
and
POWER MODE is pressed.
OFF
: The SC-04 automatically resets an alarm when the alarm condition passes.
D.ZERO (pg.80)
ON
(factory setting): You can manually perform a fresh air adjust in Measuring Mode by
pressing AIR.
OFF
: You cannot manually perform a fresh air adjust in Measuring Mode by pressing AIR.
A.ZERO (pg.81)
ON
: The SC-04 asks if you want to perform a fresh air adjustment at the end of the startup
sequence.
OFF
(factory setting): The SC-04 does not ask if you want to perform a fresh air adjust
-
ment at the end of the startup sequence.
ID DISP (pg.81)
ON
: User ID and Station ID screens appear in startup sequence. IDs can be changed in
Display Mode if
DISP.SET
in User Mode is also set to
ON
.
OFF
(factory setting): User ID and Station ID screens do not appear in startup sequence.
IDs cannot be changed in Display Mode.