Information for use
Test principle:
An indicating device contains an indicator liquid which is separated
from the surrounding water by an air pocket. CO
lower opening of the appliance via the air pocket into the indicator. After
a short time the indicator liquid acquires the same CO
surrounding aquarium water. The indicator changes colour according to
the CO
level: blue = too little CO
2
to yellow = too much CO
colour chart.
The air pocket described is vital for the level to be displayed precisely, as
the indicator would otherwise mix with the surrounding water and fade.
Advantages
Many CO
Permanent Tests are fi lled with a mixture of aquarium
2
water and indicator. This means that the KH in the aquarium has to
be measured separately in order to be able to calculate the CO
correctly. The new JBL CO
which is ready for use and does not need to be diluted with aquarium
water. The CO
of other acids in the aquarium water (e.g. humic acid or nitrate), as a
numerical value given in milligrams per litre.
Instructions for use
Two versions of the colour scale are provided. The smaller format can
be put directly on the transparent cover (item 1), or the larger one may
be attached to the outside of the aquarium (Item 6). Before installing the
appliance, please select the location for the colour scale.
1. If the colour scale is to be attached directly to the transparent lid of
the appliance, this should be done now: place the complete appliance
on a fl at surface with the suction pads uppermost. Attach the small
. The CO
2
Permanent + pH Test Set uses an indicator
2
level can therefore be measured directly, independent
2
; green = optimum CO
2
level can be read directly from the
2
diffuses through the
2
level as the
2
; greeny yellow
2
UK
level
2