American Magnetics 286 Multi-Sensor Liquid Level Instrument (CE-Marked) - Manual (Page 59)

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Operation
Menu Reference
will also sound if enabled. When the level reaches or falls below the
HI alarm, the LED is extinguished and the alarm contacts open.
The HI alarm may be set between 0.1% to 100.0%, and must be
greater than the LO alarm. The default setting is 90.0%. Setting
the HI alarm to 100% effectively disables the alarm and all
associated LED indication and alarm contacts.
4.3.3 LO Menu
Accessible by pressing the
LO
key. The “LO” menu adjusts the LO
alarm level in the selected units. When the measured liquid level
falls below the LO setpoint, the HI/LO LED on the front panel is
energized red (Channels 1 and 2 only) and a set of alarm contacts
are closed on the 9-pin D-sub J5A or J5B connectors on the rear
panel (see the Appendix for the pinout). The audible alarm will also
sound if enabled. When the level reaches or exceeds the LO
setpoint, the LED is extinguished and the contacts open.
The LO alarm may be set between 0.0% to 99.9%, and must be
greater than the HI alarm. The default setting is 20.0%. Setting the
LO alarm to 0% effectively disables the alarm and all associated
LED indication and alarm contacts.
4.3.4 A Menu
Accessible by pressing the
A
key. The “A” menu adjusts the A
setpoint level in the selected units, which defines the upper limit of
the automatic fill function control band. If the FILL mode is set to
AUTO, the A setpoint functions as the upper limit of a fill cycle.
The A setpoint may be set between 0.0% to 100.0%, but must be
greater than the B setpoint. The default setting is 60.0%.
$Ch 1: 50.0 %
Lo: 20.0 %
$Ch 1: 50.0 %
A: 60.0 %
Ch 1 & 2