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The red-y compact 2 can be provided with power from a standard AA battery or from a
common USB micro-B charger that you typically use for the charging of your android
phone. There are optional modules by which you can apply a 8 to 30 Vdc external
power.
The lifetime of the battery strongly depends on the type and quality of the AA battery
you use. We recommend (and determine the specifications with) an Alkaline-
Manganese Dioxide Battery with a capacity of 3000 mAh (ANSI: 15A IEC: LR6)
Other types of batteries (for instance Zinc Carbon, Zinc Chlorine, NiCd, NiMH or Li-ion)
can be used, as long as the voltage is 1.2 to 1.8 Vdc. Using other batteries will
influence the life of the battery when used in the red-y compact 2 flow meter.
It is also possible to use rechargeable batteries, but the unit will however not charge
the battery if powered by the USB micro-B.
We strongly recommend to remove the battery from the case if you do not use the
meter for longer periods of time to avoid damage to the flow meter in case the battery
starts to leak. The unit will retain its settings so when you re-insert the battery the
settings will be the same as when you took it out. (The totalizer will be stored to the
non-volatile memory in an interval that you can set. See chapter
There is no need to remove the battery if you connect the USB power supply. When
you run the unit on power from the USB micro-B and have a battery inserted, you can
remove the USB connector and the battery automatically takes over.
When the unit is powered by the battery you will not see the backlight to conserve
energy. The backlight is only operational when there is a power supply other than a
battery and the unit is not in ECO mode. (See chapter
information)
When you replace or install a battery, all power to the unit should be disconnected.
3.16. How to replace the battery?
Before replacing or
installing the battery
disconnect any external
power supply.
The battery is placed in a
compartment mounted above
the body and connected to the
housing that contains display
and electronics.
The battery compartment has 3
notches on each side. To remove
the battery compartment hold the
housing on both sides of the
display. Using your other hand
grab the notches and pull the
battery compartment out of the
housing.