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Liquid Level Indicators (LLI)
DK127 (audible & vibratory) & DK139 (audible)
Please retain these instructions for future reference. These instructions are also
available in other formats.
Special Warning: Test before use
Prior to each use it is recommended that you test the unit with cold water to ensure
that there is sufficient battery capacity for the device to operate properly.
General description
A compact, lightweight device with three metallic probes used to give indication of two
separate liquid levels within a cup or mug. The two different versions give audible and
vibratory indication (DK127 - a yellow case) or audible only (DK139 - a blue and white
case). This can be used to assist in filling a cup with hot water/tea/coffee until the first
level is reached and then topping up with milk until the second liquid level is detected.
The unit also has two small magnets embedded in the plastic moulding enabling it to
be attached to the side of a fridge, microwave oven etc for storage when not in use.
Orientation
Position the LLI with its three probes on the underside and the semi-circular moulding
towards you and place it on a table.
Top
Just below the top straight edge of the case is an embossed RNIB logo. Just below
this and immediately on the right and on the left you can feel two small circular
indentations about 4mm diameter. These are the two embedded magnets.
Half way down the moulding in a recessed semi-circle is a small 2mm diameter hole.
This hole is above the internal speaker and allows the tones to be emitted from the
device. The lower edge of the top surface nearest to you is a semi-circular shape with
a ribbed edge. This is the battery drawer, which when necessary is opened by pulling
the drawer towards you.
Back
Turn the unit over resting it on its top surface with the probes facing towards you. The
three metal probes occupy most of this surface. You will detect that the probes are
