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Solinst 102 Mini Water Level Meter

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Solinst Model 122/Mini 122

Interface Meter


Available from GroundwaterSoftware.com, Solinst Oil/Water Interface Meters give clear and accurate measurements of product thickness and level in wells and tanks.

Determination of both light (floating) non-aqueous phase liquids (LNAPL) and dense (sinking) non-aqueous phase liquids (DNAPL) is quick and easy. The factory-sealed probes are pressure proof and tapes are available in a range of lengths from 65 - 1000 ft (20 - 300 m) for easy measurement of product thickness, both of LNAPL and DNAPL.


Page Contents

Operating Principles

Features

Tape

Probe Options

Length Options


Solinst 122 Water Level Interface Meter Operating Principles


Product (Non-conductive liquid) = Steady light and tone 

Water (Conductive liquid) = Intermittent light and tone 



To detect liquids, Solinst Interface Meters use an infra-red beam and detector. When the probe enters a liquid the beam is refracted away from the detector which activates an audible tone and light. If the liquid is a non-conductive oil/product the signals of the oil/water interface meter are steady. If the liquid is water (conductive liquid greater than 50 ìS/cm), the conductivity of the water completes a conductivity circuit. This overrides the infra-red circuit, and the tone and light are intermittent from the oil/water interface meter. Both sensors use exactly the same zero point, giving accuracy as good as 1/200 ft or 1.0 mm. The high accuracy enables the sensors of the oil/water interface meter to detect the slightest sheen of oil on the surface of the water and to measure both LNAPL and DNAPL accurately. This is indicated by a rapid intermittent tone and therefore provide optimal measurement of product thickness. 

Solinst 122 Water Level Interface Meter Model 122 Mini

The Solinst 122 Water Level Interface Meter 122 Mini is a convenient small version of the Solinst 122 Water Level Interface Meter, small enough to fit in a backpack. Both are available from GroundwaterSoftware.com, A custom carrying bag is also an option. The Mini is available in 80 ft or 25 m lengths. The 5/8"" (16 mm) diameter probe is attached to narrow 1/4"" (6 mm) tape, which is accurately marked each 1/100 ft or millimeter. Enhanced electronics allow operation for up to 300 hours of on-time, using one 9V battery.

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Features

Model 122

• Sensor accuracy to 1/200 ft or 1.0 mm, for accurate LNAPL and DNAPL measurement
• Certified intrinsically safe
• 5/8"" (16 mm) diameter probe
• Easy access batteries: minimum 120 hours of life
• Automatic shut off after 10 minutes
• Inexpensive, simple repairs
• 3 year warranty

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Tape


The PVDF cable is traceable to NIST and EU measurement standards.

The 0.12" (3 mm) coaxial cable has a durable PVDF jacket with permanent laser markings every 1/100 ft. or each millimeter. The cable has a braided copper outer conductor, a stranded stainless steel central conductor, and a smooth chemical resistant surface that is easy to decontaminate, this perfectly designed product is available from GroundwaterSoftware.com

The following marking options are available from GroundwaterSoftware.com:

 

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Probe Options

Model 122 offers one probe option:

122/P1 5/8" diameter (16 mm) stainless steel. The beam is emitted from within a cone-shaped tip made from a rigid polyurethane material. The tip is protected by an integral stainless steel shield.

122M 5/8" diameter (16 mm) stainless steel. Similar to the P1 but shorter..
 

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Length Options from GroundwaterSoftware.com

Model 122

Available in lengths from 100' - 1,000' (30 - 300 m).

Model 122 Mini

Available in lengths of 80' and 25 m.

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