Oxigraf O2iM NEMA 4X Oxygen Analyzer
February 13, 2007 08-0427-B0, Manual, O2iM.doc Page 23
5.26 Alarm Acknowledge Time
The Alarm Acknowledge Time determines the time, ranging from 1 to 9999 seconds, that an alarm
will be silenced after pressing the any key. If the alarm condition is still true after expiration of the
acknowledge time, it will be activated again.
5.27 Mode Dwell Time
The Mode Dwell Time, ranging from 0 to 9999 seconds, determines the time that the analyzer will
remain in one of the setup modes with no keypad activity. Since the alarm relay drive conditions are
only checked in O2 mode, this setting insures that alarm scanning will continue after one of the setup
modes is used.
Caution: Run mode restoration is disabled if the Mode Dwell Time is set to
zero.
5.28 Beep Volume
The beep volume, ranging from 0 to 10, determines the keypad beep intensity. The keypad beep is
disabled if the beep volume is set to zero.
Note: Beep Volume does not affect the volume of the alarm horn.
5.29 Keypad Lock
The Keypad Lock parameter sets the password for unlocking the keypad for parameter modification.
If the Keypad Lock is nonzero then the O2iM will be locked in O2 mode on power-up. Press the
ENTER key, the one to 4 character keypad lock code, and the ENTER key again to unlock the
keypad for normal operation. Pressing the BACK key while in O2 mode can lock the keypad.
Entering the keypad code will acknowledge an alarm condition that becomes active while the keypad
is locked. The keypad lock feature may not be available depending on the factory configuration.
Warning: A PC running the OEMX monitor program is required to reset a
forgotten keypad code.
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