Xylem WL550 OIL WATER INTERFACE METERS - Manual (Page 3)

Global Water
800-876-1172 • globalw.com
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I. Quick Start Guide
1. To turn the unit on, push the red start button once briefly. Note that the unit
will make a short lived beep when it is turned on. Pushing the start button
briefly (less than 4 seconds*) a second time will power down the unit, at which
time it will make a short pulsing sound. It will also make this sound when it
turns off automatically after 10 minutes.
2. When the unit is turned on and the battery is low but will still allow for reliable
operation, the buzzer will make a longer pulsing tone, but will then resume
normal operation.
3. If the battery is too low for the unit to function properly it will power itself down
right after being turned on or it will make a continuous low volume tone until
the battery is removed.
4. There are two adjustments on the circuit board marked Water and Oil. They
are sealed to keep out moisture and should not be changed without calling for
technical support.