Solinst Model 102M Mini Water Level Meters

Overview

The Solinst Model 102M Mini Water Level Meter is designed to measure groundwater levels, especially in small diameter tubes and piezometers, or where a flexible assembly is needed to get past down hole instrumentation. The laser marked coaxial cable is mounted on a convenient small reel that is light-weight and fits easily into a mini carrying case or backpack. The accurate cable is marked each 1/100 ft. or each millimeter.

Probe Options

Model 102M Probes are designed for flexibility. The probe tips use a recessed design to minimize false signals in cascading water. There are two versions to choose from. The P4 version has a 4 mm diameter probe weighing just 10 grams that is ideal for accessing narrow diameters. The P10 version has larger and heavier probe with 10 mm diameter and 10 stainless steel weights for total weight of 174 grams.

Operating Principles

When the probe enters water the electrical circuit is completed, sending a signal back to the reel where a light and clearly audible buzzer are activated. The water level is then determined by taking a reading directly from the cable at the top of the well casing or borehole.

A sensitivity control allows the buzzer to be scaled back or turned off while in cascading water, and ensures a clear signal in both high and low conductivity conditions. A standard 9 volt battery, housed in an easy-access battery drawer, powers the Water Level Meter.

Laser Marked Cable

The coaxial cable has a durable polyethylene jacket with permanent markings precisely laser etched on the cable every 1/100 ft. or each millimeter. A braided copper outer conductor gives flexibility and a stranded stainless steel central conductor gives strength. It is easy to repair and splice.

Mini Reel

The laser marked coaxial cable is mounted on a convenient small reel that is light-weight and fits easily into a mini carrying case or backpack. The accurate cable is marked each 1/100 ft. or each millimeter. The 102M Mini Water Level Meter is available in 80 ft. and 25 m lengths. There is the choice of the P4 or P10 Probe.