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英文原文:
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).
For automated water level, temperature, and conductivity datalogging, Solinst also offers the Levelogger 5 LTC. (See the Model 3001 Levelogger 5 LTC Data Sheet).
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)
Standard 9V alkaline battery gives 90 hrs. of use
Auto-Off after 8 minutes
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:
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
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.