The Heron H.Oil and Sm.Oil interface meters are precision instruments
are used to accurately measure the thickness of product
layers (LNAPL) as thin as 1mm (1/200ft) floating on the water table
and sinking layers (DNAPL) quickly, easily and accurately. The
fully pressure proof probe is 5/8" (16mm) in diameter and is ideal
for wells, piezometers and direct push equipment. The H.Oil will
signal oil with a solid tone and light. The Sm.Oil will signal water
with an intermittent tone and a flashing light.
Both models use a premium high tensile steel, easy read yellow
tape jacketed in clear Kynar. The Kynar jacketing can withstand
attack from hydrocarbons, solvents and other harsh contaminates.
This accurate high strength engineering grade tape is manufactured
to the ASME standard of accuracy. The tape is marked to
engineering scale: Feet and tenths with markings every 1/100ft
and Meters and Centimeters with markings every mm.
The H.Oil and Sm.Oil meters come with a standard 5/8 inch (16mm)
diameter fully submersible, leak proof probe up to 1000ft/300m.
The stainless steel probe is attached to the tape using a flexible
linking device that allows the tape and probe to be protected at
this vital junction. The lens at the end of the probe is protected by
a stainless steel shield. The emitter at the tip sends a beam of infra
red light through the lens to the detector. This process identifi es
conductive liquid (water) and none conductive liquid (product) to
give the appropriate signal.