OM-550
u
5
u
••
ON-OFF
The
ON-OFF
key activates the OM-550. If the unit is “OFF”, pressing the
ON
key will
activate it, light the Activity LED and
beep
the horn. When the key is released, the unit
will print the key name, time, date, and a command menu:
Figure 2-5
If the OM-550 is “ON”, pressing the
OFF
key will cause it to print:
Figure 2-6
... then deactivate. It will remain “OFF” until the
ON
key is pressed.
The OM-550 can turn itself “OFF” (power save mode) when logging at long intervals, to
conserve power (refer to section
2.4.3 POWER-SAVE MODE
for more information). If
the unit is powered down, pressing the
ON
key will activate the unit but only the key
name will print, with the following message:
Figure 2-7
KEY NAME
MENU