Flowline LU78 EchoSwitch - Manual (Page 13)

Rev A MN300282 13 of 34
CONFIGURATION (cont.) Step Five
How to set a LOW ALARM
Before starting, measure the distance from the bottom of the
tank to the Low Alarm position (ON) in the tank.
1. In TOP‐LEVEL MENU mode, select RELAY1, RELAY2 or
RELAY3.
2. Select ALARM.
3. Select LOW.
4. Using the UP and DOWN buttons, set the LOW (ON) set
point for the relay.
5. To enter the value, press and hold SELECT for 2 seconds
and release. SAVED will display.
6. Select HYSTER to set the Hysteresis.
a. Hysteresis is the distance away from the original ON
setting where the Alarm will turn OFF.
7. Using the UP and DOWN buttons, set the HYSTER (OFF) set
point for the relay.
8. To enter the value, press and hold SELECT for 2 seconds
and release. SAVED will display.
9. Select EXIT to return to TOP‐LEVEL MENU.
Note: The hysteresis (HYSTER) setting can be used to eliminate chattering of the relay.
Note: To speed up the scrolling of the values on the display, hold down the SELECT button while holding down
the UP or DOWN buttons.