■Key descriptions
※The ℃/℉ is changeable only under the testing mode.
Press once for power on or off. (If the instrument is
left without any button operation, it will automatically turn
off after five minutes.)
Hold key, then hold key to turn on,
entering the manual turn off mode. When appears,
please let this two keys release.
(2s)
Baud
Rate,
Hi/Lo
Alarm,
Ref.,
Span
Under testing mode, press to enter the reading
HOLD mode. Use and to change display
functions. Press to leave.
Under testing mode, press for over 2 sec. until the
area B shows to enter the setting mode. Push
key and key to change the baud rate, after data
confirmed; please press for over 2 seconds again. for
enter the next level. Push key to increase the value.
Push key to reduce the value. Push key to
change digit. Determine the value re-hold key for
over 2 seconds, into the next level, who wish to skip the
other settings, hold down key will be automatically
set to the last, the complete contents of each set will be
automatically saved, and return to the testing mode.
Under any mode press key to change data.
Under testing mode, hold key for over 2 seconds to
change℃/℉. After changed please let go.
Under any mode press key to change data.
Under any mode, press and key the back light
will be turned on. Note: When the battery power is under
25%，the LED back light will not be able to function.
Under any mode, press and key after 2
seconds the buzzer will be turned on. The mark
appeared.
