TLC Meter model 107

Description

The Solinst 107 Level, Temperature, and Conductivity Probe is a high-precision, portable multiparameter instrument designed to measure water level, temperature, and electrical conductivity in environmental, hydrogeological, and industrial applications. Its robust design ensures reliable measurements in wells, piezometers, tanks, rivers, and lakes, making it ideal for groundwater monitoring campaigns, water quality control, and remediation studies.

The 107 Probe combines highly sensitive level sensors, accurate temperature, and electrical conductivity measurements, providing a comprehensive record of critical parameters for aquifer characterization, salinity analysis, water quality, and ion balance. Its durable construction ensures long-lasting performance and reliability even in demanding conditions.

Features

Conductivity readings range from 0 to 80,000 μS/cm with an accuracy of 5% of the reading or 100 μS (whichever is greater).
Water level and depth measurements can be read directly on the flat PVDF tape, which is precisely laser-marked in 1 mm increments. The tapes are available in lengths up to 300m.

Conductivity, Simple Measurements
• Tape lengths up to 300m
• Robust reel, PVDF tape with precise laser markings
• Probe diameter 19mm (3/4")
• Standard 9V battery for 90 hours of use
• Auto shut-off after 8 minutes

Applications

Applications
• Conductivity and temperature profiling in wells and surface waters
• Salinity studies
• Investigations of saline water intrusion
• Testing for water quality deterioration due to road salt
• Tests for chemical residue detection
• General indication of pollution levels
• Early detection of changes in water quality
in:
- Landfills
- Industrial areas

Performance

Level and Depth Measurements
When the zero point of the probe enters the water, an electrical circuit is completed, briefly triggering a sound and a light, and turning off the display for about 1 second. Then the water depth is read on the tape.
When the TLC meter is removed from the water, a brief buzz warns that the probe is now out of the water.

Temperature Measurements
The TLC probe operates within a temperature range from -15°C to +50°C (5°F to +122°F). The user can choose to have the readings displayed on the screen in °C or °F. The accuracy is +/- 0.2°C in Celsius, or +/- 0.4°F in Fahrenheit.
The 'smart' sensor automatically adjusts the conductivity readings and displays specific conductance. This results in standardized, repeatable measurements time and again.
The full temperature range of the TLC meter is from -20°C to 60°C. The minimum display temperature is -20°C; a temperature below -20°C will show ^^^^^^.
The maximum display temperature is 60°C; a temperature above 60°C will show ^^^^^^.
When the unit is turned on, the display shows conductivity and temperature.

Conductivity Measurements
The TLC probe uses a 'smart' sensor with platinum electrodes to read conductivity. The conductivity is displayed on the screen along with the associated temperature measurement. The 'smart' conductivity sensor automatically displays conductivity standardized to 25°C, that is specific conductance. The temperature-conductance coefficient is 2% per °C.
The complete conductivity range is from 0 to 80,000 uS/cm, and the calibrated range is from 500 to 80,000 uS/cm. Calibration is simple, using solutions of 1413 μS, 5000 μS, 12,880 μS, and/or 80,000 μS for manual conductivity calibrations of 1, 2, 3, or 4 points.
Since conductivity measurements are temperature-sensitive, a brief wait of 20 seconds per degree Celsius change in temperature is required for the measurements to stabilize at each desired depth before recording the three measurements.

Advantages

Reliable Multiparameter Measurement

• Simultaneously acquires level, temperature, and conductivity, optimizing worktime and efficiency.

• Ideal for water quality studies and aquifer characterization.

⚡ Easy to Use

• Intuitive operation for technicians and field operators.

• Quick and accurate results ready for logging and analysis.

? Robustness and Durability

• Resilient materials for demanding environments and extended field use.

• Solinst construction internationally recognized for reliability.

? Wide Applicability

• Useful in environmental, hydrogeological, and industrial monitoring, as well as in remediation and salinity control projects.

Documents

• ES_FT_A201798-107_Level, temperature, and conductivity probe 107
• Level, Temperature and Conductivity Probe 107
• EN_FT_A201798-107_Level, temperature, and conductivity probe 107
• EN_I_A201798-107_Level, Temperature, and Conductivity Probe 107