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36 • Chapter 5: User Mode and Calibration
SC-04
Entering User Mode
WARNING:
The SC-04 is not in operation as a gas detector while in User Mode.
1. Take the SC-04 to a non-hazardous location and turn it off if it is on.
2. Press and hold AIR, then press and hold POWER MODE. When you hear a beep, release
the buttons.
3. The screen that appears depends on the setting of User Mode’s
PASS-W
item.
If
PASS-W
is set to
OFF
(factory setting), continue with Step 6.
If
PASS-W
is set to
ON
4. If
PASS-W
is set to
ON
in User Mode, a password screen appears and the first digit
flashes. The factory-set password is
0405
but it can be changed.
5. Use AIR to select each password number then press POWER MODE to save it and move
on to the next number. To go back a number, press and hold AIR and POWER MODE for
a few seconds. To reverse the direction of change (ie. from increasing to decreasing or vice
versa):
a. Press and hold AIR.
b. Immediately press POWER MODE and then release both buttons.
6. The
BUMP
item displays.
7. Use AIR to move through the User Mode items.
PASS-W (pg.61)
ON
: User Mode is password-protected. Factory-set password is
0405
.
OFF
(factory setting): User Mode is not password-protected.
ROM/SUM (pg.62)
View the firmware information for the SC-04’s sensor board and main board.
START (pg.62)
Press and release POWER MODE to begin the warmup sequence and enter Measuring
Mode.
Table 8: User Mode Menu Items
User Mode
Menu Item
Description
PASS-W
set to
OFF PASS-W
set to
ON
0000
PASS-W
BUMP
BUMP