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Introducing the new Mini Interface Meter from Solinst®. It has all of the
superior technology built into our Model 122 Interface Meter and more. The
new Mini is designed to give a convenient small size and to operate for
longer and on only one standard 9V battery. The very low power consumption
enables 300 hours or more of normal use before the battery needs changing.
The ergonomic small reel holds 20 m of narrow
flat tape and is fitted with a shorter probe. The handle has a cushioned
grip and a probe holder. Like the standard Model 122, the Mini Interface
Meter gives a steady tone and light in product and intermittent signals in
water.
The superior electronics offers automatic
circuitry testing when the meter is turned on; extended battery life; clear
signals; and high accuracy. Infra-red refraction is used to detect liquids
and conductivity to distinguish water. Both optical and electronic sensors
are precisely at the zero point. A steady light and tone indicate product.
Water is indicated by intermittent signals. The factory sealed probes are
inexpensive and can be easily replaced. The sensors are protected by an
integral stainless steel shield, which allows easy cleaning. Power is
supplied by a 9V battery, located in the easy access drawer of the reel.
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Operating Principles
To detect liquids, Solinst® Mini Interface Meter
uses an infra-red beam and detector. When the probe enters a liquid the beam
is refracted away from the detector which activates a steady tone and light.
If the liquid is a non-conductive oil/product the signals are steady. If the
liquid is water, the conductivity of the water completes a conductivity
circuit. This overrides the infra-red circuit, and the tone and light are
intermittent. Both sensors use exactly the same zero point, giving accuracy
as good as 1.0 mm. The circuits are powered by one 9V battery which is
housed in an easy access drawer on the faceplate of the reel.
Tape
The markings on the tape are easy to read, and are permanently heat-stamped
into the tape. The dog bone shaped tape avoids adherence to wet surfaces in
wells. It is resistant to most chemicals, and the smooth surface of the tape
is easy to decontaminate.
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