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    TLC Meter, Temperature, Level, Conductivity

    Conductivity Made Easy

    High Quality Tape

    Conductivity Measurements

    Applications

    Level and Depth Measurements

    Temperature Measurements

    Display Menu

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 that rotates for ease of reading.

Water level and probe depth measurements are read off the accurate Solinst flat-tape marked every 1/100 ft. or each millimeter.

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Conductivity Made Easy

• Tape lengths to 1000 ft (300 m)
• Rugged Solinst reel and accurate PVDF laser marked tape
• Probe diameter 3/4" (19 mm)
• Display rotates for easy reading
• Standard 9V alkaline battery gives 90 hrs. of use
• Auto-Off after 8 minutes

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High Quality 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..

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.

Each 1/100 ft, 1/10 ft and ft

Each mm, cm and m

100 ft, 200 ft, 300 ft, 500 ft, 750 ft, 1000 ft

(30 m, 60 m, 100 m, 150 m, 250 m, 300 m)

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Conductivity Measurements

The TLC Meter uses a ‘smart’ conductivity sensor with platinum  electrodes to measure conductivity. The conductivity is displayed  on the rotating 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. 

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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: Landfills & Industrial Sites

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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.

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Temperature Measurements

The TLC Meter operates in a range from -15ºC to +50ºC  (23ºF to 122ºF). You may choose to have the readings  displayed on the LCD screen in ºC or ºF. The ‘smart’ TLC  probe automatically adjusts the measured conductivity values  to display as specific conductance standardized to 25ºC. This  provides standardized, repeatably comparable measurements. 

When the probe is turned on, the LCD screen displays both  conductivity and temperature. 

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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.

The second window allows the user to turn the TLC Meter off, however, the meter also automatically turns off after 8 minutes to extend battery life. The following window brings up the calibration option. The fourth window allows the user to choose Fahrenheit or Celsius for the temperature display.

The menu then cycles back to display the current readings. Press the ON button two times quickly in any given screen to achieve the displayed action.

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