Omega Vehicle Security HH501BK - Manual (Page 9)

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(Press ENTER key can escape Lo Limit value set mode), _ = = =.= is
displayed (the ".=" is displayed when you set up the fourth number), Lo Limit
value is entered via overlay numbers, when you want to get negative values
push (- 0) key for end of numbers, then press overlay ENTER key, stored
the Lo Limit value and exit set mode.
3. In the Hi/Lo Limits mode, the value can not >±2000.0 counts.all value will
be memorized until yor reset it.
Hi/Lo LIMITS mode
Press Hi/Lo LIMITS key to enter the Hi/Lo Limits comparative mode,
"LIMIT" is displayed. In the this mode the automatic power-off feature is
disabled and other funtion key are disabled, when input temperature value
exceed Hi. The beeper emits a continuity pulse tone and "Hi" is displayed,
and when input temperature value exceed Lo value.The beeper emits a
discontinuous pulse tone and "Lo" is displayed. Press Hi/Lo LIMITS key
again to exit the Hi/Lo LIMITS mode.