23
(2)
Turn the instrument on while pressing
and holding down the “Alarm” button.
This will place the instrument in the
“Alarm Adjust Mode”.
(3)
Use the “+” or “-” key to change the
alarm latch setting.
(4)
Once the proper setting has been
selected, press and hold down the
“Alarm” button for three seconds. Do not
release the “Alarm” button until the LCD
displays the message “DONE” to
indicate that the new setting has been
successfully entered. Pressing the
MODE button at any time cancels the
procedure. The LCD will show the
message “NO SAVE” to indicate that the
setting has not been changed.
4.3
Restoring the factory default
alarm settings
Ex Chek alarm settings are set at the factory
in the most conservative way possible. It is
possible to restore these default settings at
any time by doing the following.
(1) Turn the instrument on and make sure
it is in the Technician Mode. (See
Section 2.2.4.)
(2)
Press the "Alarm" button on the
instrument key-pad. The display will
briefly show the default alarm
message, and the type of sensor
currently installed.
D E F
↓
A L R M
↓
E X
(3)
This screen will be followed by another
screen showing the specific default
alarm setting. This screen will be shown
in continuous rotation.
P E A K
↓
1 0
(5) Push and hold the "Alarm" button to
restore the factory default alarm
settings. The display indicates when
the settings have been restored:
D O N E
(6) If the "Mode" button is pushed, the
current alarm settings remain
unchanged, and the display shows the
following screen:
N O
↓
S A V E
(7) After selection of the default or current
alarm settings has been made, the
display reverts to the current gas
reading screen.
