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 that rotates for ease of reading. Water level and probe depth measurements are read off the Solinst 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). For automated water level, temperature, and conductivity datalogging, Solinst also offers the LTC Levelogger Junior. (See Model 3001 LTC Levelogger Junior Data Sheet).
Conductivity Made Easy
Tape lengths to 1000 ft (300 m)
Rugged Solinst reel and accurate laser marked tape
Probe diameter 3/4" (19 mm)
Display that rotates for easy reading
Standard 9V alkaline battery gives 90 hrs. of use
Auto-Off after 8 minutes
High Quality Tape
The high quality PVDF tape reels smoothly, remains flexible and hangs straight in the well, irrespective of temperature. The 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.
Stranded 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)
Conductivity Measurements
The TLC Meter uses a 'smart' conductivity sensor with platinum electrodes to read conductivity. The conductivity is displayed on the rotating screen along with the associated temperature measurement. The 'smart' conductivity probe displays conductivity automatically standardized to 25°C, i.e. specific conductance. The conductance temperature coefficient is 2.0% per °C.
Calibration is simple, using 1413 µS and 12,880 µS solutions for single or two point conductivity calibration.
Applications
Profiling conductivity and temperature in wells and open water
Salinity studies
Saltwater intrusion investigations
Testing for water quality impairments from road salt
Tracer tests
General indication of chemical contamination level
Early warning of changes in water quality at:
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Landfills
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Industrial Sites
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.
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. 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.
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 ON button is held down for 2 seconds and released, the display moves to the next menu item. Press the ON button two times quickly in any given screen to achieve the displayed action.
