Overview
The Laser Marked Model 102 Water Level Indicator is designed to accurately measure groundwater levels in small diameter applications.
Model 102 Laser Marked Water Level Indicator
The Solinst Model 102 Water Level Indicator 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.
Operating Principles
The Model 102 Water Level Meter uses a choice of two small diameter probe designs, attached to a narrow coaxial cable, fitted on a sturdy ergonomically designed reel. A standard 9 volt battery, housed in an easy-access battery drawer, powers the Water Level Meter.
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.
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.
The cable reels smoothly, remains flexible, and comes in lengths from 100 ft. - 1000 ft. (30 m - 300 m).
A braided copper outer conductor gives flexibility and a stranded stainless steel central conductor gives strength. It is easy to repair and splice.
Imperial
Laser Markings Each 1/100 ft. or Each Millimeter
Probes
Model 102 Water Level Indicator Probes are designed for flexibility. The probe tips use a recessed design to minimize false signals in cascading water.
P10: 3/8" dia. x 2.75" long (10 mm x 70 mm) stainless steel with 10 stainless steel weights, weighing 6.14 oz (174 g). This probe is ideal for the majority of water level measurement applications. The flexible weight assembly allows easy well access and keeps the cable hanging straight in monitoring wells.
P4: 0.157" dia. x 1.5" long (4 mm x 38 mm) stainless steel weighing 0.35 oz (10 g), with no weights. It is ideal for shallow applications and for accessing very narrow diameters, especially the channels of the Solinst CMT System, Drive- Point Piezometers or narrow open tubes.
Features
Low Cost
- Solinst quality at a low price
Narrow
- 0.157" (4 mm) diameter probe
Long Life
- Rugged, corrosion resistant components
- Strong, flexible tape is easily spliced
- Replacement probes, cables and parts
Accurate
- Precise markings every 1/100 ft. or mm
- Traceable to national standards
Measure Water Levels within the narrow channels of a Solinst CMT® System.
Reels and Length Options
Reels
The standard reel has an easy access battery drawer, a well designed brake assembly, and convenient carrying handle. It has been ergonomically designed to be comfortable in use and stable when placed on the ground. It has an on/off sensitivity switch, light, buzzer, battery test button, and comes with a tape guide.
The mini reel is sturdy, yet very compact and easy to carry. It also has an on/off sensitivity switch, light, buzzer, and battery test button.
102 Water Level Meter Specifications
| Operating temperature of reel: | -20°C to +50°C |
| Operating temperature of cable/probe: | -20°C to +80°C |
| Wetted materials (cable/probe): | MDPE, stainless steel, Delrin, Polyolefin (P10 only) |
| Reel IP rating: | IP64 (dust and splash proof) |
| Conductivity detection threshold: | P10: 40 μS/cm P4: 100 μS/cm |
Length Options
| Mini Reel | * 80 ft. | 25 m |
| Small Reel | * 100 ft. | 30 m |
| * 200 ft. | 60 m | |
| * 300 ft. | 100 m | |
| 500 ft. | 150 m | |
| 750 ft. | 250 m | |
| 1000 ft. | 300 m |
* Cables with P4 Probes are only available in these lengths
Tape Guide / Datum
The tape guide can be used to protect the cable from damage on rough edges, help the probe hang straight in the well, and ensures consistent measurements. It can also provide reel support on the casing. A tape guide is provided with each standard reel.
Other Options
Carrying Bag: Small and mini padded nylon carrying bags are available, as optional extras. The bag design has a convenient shoulder strap, zippered front pocket, zippered top, and a grommet in the base to prevent moisture build-up. A mini bag has no pocket.
Replacement Parts: Replacement probes, cables with probe and other spare parts are available.