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Solinst 122 Mini Interface Meter

 Solinst 122 Mini - Item 110641 - 80 ft Cable $693.72
 Solinst 122 Mini - Item 110942 - 25 m Cable $693.72
 Solinst 122 Mini - Item SOL-CBmini - Carry Bag $45.00


 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.. 

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Operating Principles



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 ėS/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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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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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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