Recharging the
m
ÜV
Single Cell Battery
Open the top screw cover with a ¼ turn twist to reveal the recharge wires. Separate
the two gold plated magnets and attach the red end to the positive contact of the
source battery and the black end to the negative battery contact. In a few seconds the
white LED should start 'pipping' (dim blinking once per second) if connected properly.
The pipping will stop when trickle charging is complete, in at most 10 hours .
A D-cell is the most cost
effective recharge option
as it can recharge the
unit 10 times. An AA or
9V cell will only supply
1-2 recharges.
Solar panel or wall charger
Connect the red and black wire ends to the positive and negative steel contact points
on the panel. The LED will pip and also will go on solid when charging is complete.
The high voltage input from the panel does not engage the step-up switching charger
circuit.
Frequently Asked Questions (FAQ)
1. What if the unit won't respond at all?
Rub the contacts against the battery to improve contact or clean surfaces. The unit has a battery
deep-discharge protection mode. In rare instances it may be necessary to recharge the unit with
the solar panel or a 9V battery to recharge the Li-ion cell from a completely discharged state.
2. Can the
m
ÜV
be used with any container?
Yes. Any container that the unit can fit into and still be agitated so all the water gets treated.
When treating a quantity of water larger than 1L, make sure to dose the water with
proportionately longer times. i.e. more than 2L but less than 3L gets 3 doses, and so on.
3. What recharging sources can be used?
Any single cell battery: AA, C, D in carbon zinc, alkaline or NiCd, NiMH or Lithium CR123, CR2
or rechargeable RCR123, 18650 cell or our accessory solar panel.
4. Can I replace the tube if it breaks?
No. The UV tube is not field-replaceable. The
m
ÜV
has been substantially reinforced with the
tube sealed in the plastic and should withstand all but the most severe abuse.
Tips
•
Use the cap on it's retainer lead to remove the unit easily if dropped or floated in water
•
When the bright white spot at the top of the tube turns a dimmer orange, the battery is
getting low; you will have about 5 cleaning cycles left at this point. When the batteries are
too low for a complete cleaning cycle, the LED will flash and abort the cycle.
•
Just as filters don't like to be frozen, neither does the
m
ÜV.
Below freezing the battery
cannot supply adequate power to the unit and freezing diminishes its life as well.
Consider leaving the unit inside the tent if below-freezing temperatures are expected.
•
When cold, let the bulb strike up bright before dunking the end in water.
•
The tube cover will glow in the dark making the unit easy to find at night.
Using the
m
ÜV
1. Fill a container with water to between 300ml and 1L. If the water is
too silty the UV-C will be less effective. In this case we recommend
pre-filtering the water until it is clear, agitating the water so that more
of it comes into closer contact with the lamp, and/or running the water
through more than one cycle to assure complete disinfection. Remove
protective end cap from unit.
2.
To start cleaning cycle, press and hold the button for
two seconds until the LED blinks and release. The tube
will light after 3 seconds of blinking giving you time to
immerse the bulb end in the water. The bulb will glow
blue while the cleaning cycle runs.
3.
Stir with the unit during the cleaning cycle to improve
the disinfection process. The unit will float if dropped
into the container but this is not the most effective
way to treat. Agitating the water thoroughly assures
a complete treatment. The unit will fit into and plug a
standard 1L-2L soda bottle. Shake to mix well.
4.
The cleaning cycle will run for about 75 seconds. If
less than 1L is being treated, then the cycle can be
terminated early by pressing the button again. The
blue UV-C lamp will turn off and the white LED in the
cap will turn on when the disinfection cycle has
finished. A flashing LED indicates an error and the
cycle may not have been completed (see “Tips” and
“FAQ” for more information).
Cover UV-C lamp to protect bulb when not in use.
Lantern Mode
m
ÜV
contains a handy, separate, low-power, white LED
for lighting. Click twice to start flashlight. (LED light does
not clean water, and is safe to use out of container)
The LED light is self timed and will go dim in 12 minutes,
and will go off a minute later. Clicking the button when the
light is in dim mode will return it to bright mode for 12 more minutes. Each 12
minute cycle of white LED light uses approximately 2% of the battery capacity.
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