Xylem RG333 RAINGAUGE (AUTO-DRAIN) - Manual (Page 4)

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III. Auto-Drain Rain Gauge Installation
a. The Auto-Drain Rain Gauge requires a clear an unobstructed
mounting location to obtain accurate rainfall readings. There are two
holes drilled through the backing plate that may be used to mount the
Rain Gauge to a post.
IV. Auto-Drain Rain Gauge Set Up and Use
a. The Hours knob can be used to change how often the rain gauge
empties. Set the knob to your specific application. (Usually 24 hours)
b. The Functions knob has 3 settings:
1. Off: When not in use
2. Drain: Manually Empty
3. Auto: Drains per the Hours settings
c. Once the Hours and Function knobs have been set, verify the RG333
is mounted vertically, and there is no obstruction above the opening.
V. Maintenance
a. The funnel and Auto-Drain Rain Gauge mechanism should be cleaned
periodically. An accumulation of dirt, bugs, etc. in the Auto-Drain Rain
Gauge funnel will adversely affect the readings. If necessary use a
bristle brush and flush with fresh water.
b. Replace the unit’s batteries annually. The Rain Gauge comes with two
AA size alkaline batteries. To access the batteries, unscrew the
Phillips head screw, located at the bottom of the unit. Remove cover
and replace batteries.
WARNING: Removing the batteries will reset the Rain Gauge’s Auto
function.