Overview
The Model 107 TLC Meter is ideal for profiling conductivity and temperature in wells and open water, for salt-water intrusion studies, and a general indication of contamination levels. The 3/4" (19 mm) diameter probe is attached to Solinst PVDF flat tape; accurately laser marked every 1/100 ft or each millimeter. Lengths up to 1000 ft or 300 m, mounted on a Solinst reel.
The conductivity range is from 0-80,000 µS/cm. Conductivity and temperature measurements are displayed on a rotating LCD screen on the face of the reel. Conductivity accuracy is 5% of reading or 100 μS (which ever is greater). A light and buzzer are briefly activated when the zero point of the probe enters water. The depth to water and depth of displayed readings are read off the tape. The 9V alkaline battery is housed in an easy-access battery drawer and provides up to 90 hours of use.
Model 107 TLC Meter (Temperature, Level, Conductivity)
The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. It displays accurate measurements of conductivity and temperature on a convenient LCD display.
Conductivity measurements are read from 0-80,000 μS/cm with readings giving accuracy of 5% of reading or 100 μS (which ever is greater).
Water level and probe depth measurements are read off the Solinst durable PVDF flat tape, which is accurately laser marked every 1/100 ft or each millimeter. Tape lengths are now available up to 1000 ft (300 m).
Conductivity Made Easy
Rugged PVDF Flat Tape
The high quality PVDF flat tape reels smoothly, remains flexible and hangs straight in the well, irrespective of temperature. The flat tape is mounted on a sturdy, well-balanced Solinst reel, with a convenient battery drawer for the 9 Volt alkaline battery. Permanent laser markings each 1/100 ft or millimeter allow accurate readings.
Standard stainless steel conductors and copper coated stainless steel conductors resist corrosion, provide strength and are non-stretch. They make the tape easy to repair and splice. The dog-bone design reduces adherence to wet surfaces.
LM2: Each 1/100 ft, 1/10 ft and ft
LM3: Each mm, cm and m
Lengths:100 ft, 200 ft, 300 ft, 500 ft, 750 ft, 1000 ft(30 m, 60 m, 100 m, 150 m, 250 m, 300 m)
Water Conductivity Measurements
The TLC Meter uses a 'smart' conductivity sensor with platinum electrodes to measure conductivity. The conductivity is displayed on the screen along with the associated temperature measurement. The 'smart probe' displays conductivity that has been standardized to 25°C, i.e. Specific Conductance (displayed as EC). The conductance temperature coefficient is 2.0% per °C.
Calibration is simple, using 1413 μS, 5000 μS, 12,880 μS, and/or 80,000 μS solutions for 1, 2, 3, or 4 point manual conductivity calibrations.
Applications
Water Level and Depth Measurements
When the zero point of the probe enters water, an electric circuit is completed, briefly activating a buzzer and blanking out the screen for about 1 second. The depth to water is then read off the tape. When the TLC Meter is withdrawn from the water, a short buzz gives a warning that the probe is now out of water.
A Tape Guide/Datum allows the depth measurement to be read at the marked position on the Tape Guide, to give reliable, repeatable, accurate depth measurements when profiling a well. The Tape Guide protects the tape from damage on rough edges of well casing.
Water Temperature Measurements
The TLC Meter operates in a range from -15°C to +50°C (23°F to 122°F). You may choose to have the readings displayed on the LCD screen in °C or °F. Accuracy is +/- 0.2°C in Celsius, or +/- 0.4°F in Fahrenheit. The 'smart' TLC probe automatically adjusts the measured conductivity values to display as specific conductance. This provides standardized repeatably comparable measurements.
When the probe is turned on, the LCD screen displays both conductivity and temperature.
Conductivity and Temperature Display Menu
The display menu is simple to operate. When the unit is turned on, it will begin to display electrical conductivity and temperature readings, in or out of water. If the button is held down for 2 seconds and released, the display moves to the next menu item. Press the button two times quickly in any given screen to achieve the displayed action.
The LCD Display Menu
