HS-04 Operator’s Manual Appendix B: Gas Select Mode • 93
Appendix B: Gas Select Mode
Overview
This appendix describes the HS-04 in Gas Select Mode. The HS-04 is factory-set to suit most
applications. Update settings in Gas Select Mode only if required for your specific application. A
description of the Gas Select Mode items is shown in Table 14 below.
Entering Gas Select Mode
WARNING: The HS-04 is not in operation as a gas detector while in Gas Select Mode.
1. Take the HS-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. You will hear a beep after one
second. Continue to hold the buttons down.
3. You will hear a second beep. Continue to hold the buttons down.
4. When you hear a third beep, release the buttons.
5. A password screen appears and the first digit flashes. The password is 2014.
Table 14: Gas Select Mode Menu Items
Menu Item (Page # of
Description)
Description
SAVE-AP (page 94) Set the current alarm points as the default alarm points.
MAX.SPAN (page 95) ON
: Maximum span screen appears after a successful calibration.
OFF
(factory setting): No maximum span screen appears.
STEALTH (page 96) STEALTH ON
: No backlight, LED, or buzzer operation.
STEALTH OFF
(factory setting): Backlight, LED, and buzzer operate
normally.
This setting has no effect unless STEALTH is set to ON.
VIB ON
: Vibrator activates for alarm conditions.
VIB OFF
(factory setting): Vibrator does not activate in any situation.
START (page 97) Enter Measuring Mode
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