INSTRUCTIONS IN ENGLISH | MEGA FLOW METER
1 YEAR WARRANTY: This product is warranted to be free from defects in materials or
workmanship for one (1) year from the date of purchase.
USE OF PRODUCT:
Taking a Measurement
Fig. 2
Fig. 3
Press the POWER button to turn the meter on. The LCD will flash "000" momentarily before
showing "- - -", which indicates the meter is ready to take a new measurement. Once the display
shows "- - -" it can be placed under the nozzle/spray head/faucet to be tested. The meter can be
used as a shield when approaching the test nozzle (See Fig. 2). There is a 60 second timeframe
to place the meter under the flow from the time "- - -" is first displayed. Placement of the meter
under the flow should be brisk and precise so that all the flow is quickly transferred into the meter
(See Fig. 3). As the meter fills with water, the display will start flashing "- - -", which indicates the
reading is in progress. As soon as water reaches the meter's upper sensor, the flashing stops, and
the flow rate is calculated and displayed for 90 seconds or until the POWER button is pressed to
start a new reading (See Fig. 4). Once the reading is displayed, the meter can be emptied at any
time by tipping the meter upside down to pour the water out through the top (See Fig. 5). If a
reading needs to be restarted, simply empty the meter and press the POWER button to begin a
new reading cycle. PLEASE NOTE: The most accurate measurements are made with the meter
held steady during the fill process.
Irrigation drop nozzles can be placed directly
into the top of the meter while in operation to
capture and measure the flow rate as shown
if Fig. 3. An optional reusable Nozzle Boot
as shown in Fig. 6 and Fig. 7 is available from
Innoquest by referencing Item # 26350.
02
Fig. 4
Fig. 5
Fig. 6
Fig. 7
SpotOn® Mega Flow Meter Item #38520
INSTRUCTIONS IN ENGLISH | MEGA FLOW METER
Turning the Meter ON/OFF
The meter will turn on any time the POWER button is pressed. The meter can be shut off by
pressing and holding the POWER button for 3 seconds or waiting for automatic shutoff after 90
seconds of inactivity.
Changing Measurement Units
The meter can be configured to display readings in either
gallons per minute (GPM), liters per minute (LPM), or
liters per hour (L/hr). To change the display units, the
user must first turn the meter off. Then press and hold the
POWER button until the display is blank except for the
units of measure, about 3-5 seconds (See Fig. 8). When
the display shows only the units of measure, release
the POWER button and the display will start flashing the currently selected unit of measure. Press
the POWER button to change this selection. Once the correct unit type is selected and flashing,
wait without pressing the button for 5 seconds. The meter will automatically save the new setting
and shut off.
Changing the Battery
The LCD will show an empty battery icon when it is time to change the battery. Remove the screw
cover (6) of Fig. 1 by rotating counter clockwise. A screwdriver may be required to loosen the
cover. Gently pry out the old battery with a small knife or tiny screwdriver as shown in (8) of Fig.
9, being careful not to damage the battery holder. Replace with a new CR2032 lithium coin cell
battery and replace the screw cover. Tighten the cover clockwise until the o-ring seal is slightly
compressed.
TROUBLESHOOTING & MAINTENANCE:
This meter measures flow rate by measuring the time it takes to fill a portion of the meter's
container. The rising water level is sensed by 3 electrodes inside the meter. The meter will only
function with fluids that conduct electricity, such as water. In the case of distilled water, the
conductivity may be too low for proper meter operation. All tap water will work very well with the
meter. Any substance that coats or covers the exposed metal on the electrodes will hinder their
ability to sense the water level. Care should be taken to rinse the inside of the meter with clean
tap water when contaminates are present in the measured flow; this will keep foreign material
SpotOn® Mega Flow Meter Item #38520
Fig. 8
8
Fig. 9
03