1、High Quality Groundwater and Surface Water Monitoring InstrumentationMeasuring Water Levels, Temperatureand Conductivity1. Remember to calibrate the probe before each measurement session.(See Calibration Section.)2. Turn the probe on and lower into water. A tone and light indicate thatwater has been
2、 reached and the depth can be read off the tape andrecorded. The LCD screen is blacked out for about one second as theprobe enters water. A weaker tone sounds as the probe is removed fromwater. Lower and raise the probe slowly a few times to verify the depth.3. Once in water, the screen displays spe
3、cific conductance andtemperature of the water at the zero point. Lower the probe to thedesired depth. Record the depth and the associated conductivity andtemperature readings when stabilized. Typically 10 seconds/C oftemperature change are required for stabilization.To conserve battery power, the di
4、splay has an auto off after 8 minutes of use. If the display is blank when you wish to take ameasurement, click the ON button to display temperature andconductivity readings.4. Repeat at each desired depth allowing 10 seconds/C temperaturechange for stabilization.5. After each use remove the probe s
5、hroud and clean the probe sensorswith a cloth or paper towel, then rinse thoroughly with de-ionized water(see cleaning section for more details).TLC Meter Operating InstructionsModel 107Operating PrinciplesThe Solinst Model 107 TLC measures temperature, level andconductivity. Temperature and conduct
6、ivity readings are displayedon the LCD screen and water level is read from the tape as witha conventional Water Level Meter. When the probe is immersedin a conductive fluid, a circuit is completed and the water level isindicated by a tone and light. Conductivity measurements are read from 0-80,000 S
7、/cm withreadings giving accuracy of 2% of reading or 30 S (which ever isgreater). The smart probe displays conductivity which has beenstandardized to 25C, i.e. Specific Conductance (TemperatureCoefficient is 2.0%). Temperature measurements are read from -15C to +50C. The TLC will not operate outside
8、 this temperaturerange and displays “” to indicate that temperature is outsidethe operational range.If after 3 repetitions of the calibration procedure, an accuracy of+/-2% difference between Displayed Calibration Reading andCalibration Solution Value cannot be achieved (which may occurin very cold
9、or very hot environments) then manualcompensation of subsequent readings can be achieved as follows:1. Record the TLC Calibration Solution Value and thecorresponding Displayed Calibration Reading.2. Calculate the Compensation Multiplier (CM = CalibrationSolution Value/Displayed Calibration Reading).
10、 For examplewhen calibrating to 1413 S/cm, if the Displayed CalibrationReading is 1455 the compensation multiplier will be1413/1455 = 0.9711.3. Multiply all subsequent TLC readings by the CompensationMultiplier. For example if the dispayed TLC reading is 1650 S/cm the actual conductivity reading wil
11、l be 0.9711 x 1650 = 1602 S/cm.Note: It is not necessary to achieve a perfect match between the Displayed Calibration Reading on the TLC Meter and the Calibration Solution Value.Note: If this device is used in a manner not specified by Solinst, the protection provided by the equipment may be impaire
12、d.Notes: 1. The zero measurement point of the TLC Meter is the tip of the shorter sensor pin visible within the shroud at the bottom of the probe.2. If the display indicates LOW BATT there is still somelife left in the battery, but it is recommended that you change the batteries as soon as possible.
13、Notes: 1. The water level sensor has a slight delay (1 sec.).2. Measure static water level on entry into water only(i.e. not on removal) and wait 1 second beforerepeat measurements.ECT070021.5CCal.WaitNowECT070070.6FPress 2Xfor OFF.Press 2Xfor Cal.Press 2Xfor degF.Press 2X for OFFPress (800) 516-908
14、1 Tel: +1 (905) 873-2255; (800) 661-202335 Todd Road, Georgetown, Ontario Canada L7G 4R8Web Site: E-mail: Printed in CanadaMarch 7, 2008Notes: The displayed reading should be within 2% of thecalibration standard being used, if not, repeatcalibration. (For 1413, 2% = 1384 to 1441 S/cm,for 80,000 2%
15、= 78,400 to 81,600 S/cmCaution: The 1413 S/cm solution can be seriously affected bysalts left on the probe. Clean probe thoroughly before1413 S calibration by rinsing in de-ionized water until the conductivity reading reaches about 20 S.Regular probe calibration is necessary. If, at any time, readin
16、gsappear to be less accurate than usual, clean the probethoroughly, then re-calibrate. A two point calibration should beperformed prior to each measuring session. The TLC Meterautomatically determines each solution being used. Whenmeasuring water of less than 10,000 S/cm, better accuracycan be obtai
17、ned if a further single point calibration at1413 S/cm is performed after the usual 2 point calibration.Equipment CheckUpon receipt of your Solinst Model 107 TLC Meter, and alwaysbefore heading out to the field, the following checks arerecommended:1. Turn the meter on. If the battery is low a LOW BAT
18、T warningappears and the 9 volt alkaline battery should be replaced.2. Ensure the probe tip and shroud are clean.3. Calibrate the probe. (See calibration instructions)Tape Guide Instructions1. Fit the Tape Guide over the top of the well, small end in.2. Insert the leg of the TLC Meter into the hole
19、on the TapeGuide and rest the TLC Meter on the side of the well casing.(See Installation diagram.)3. Take all measurements at the V notch on the Tape Guide,and adjust readings according to the offset stamped on theTape Guide.4. When finished, store the Tape Guide by clipping it onto thesupport brack
20、et on the back of the TLC Meter.MadeInCanadaGeorgetown, ONSolinst CanadaLtd.http:/Tel: +1(905) 873-2255(800) 661-2023OffBatteryTestWater Level MeterModel 101TLCTLCThe V notch improvesaccuracy when readingwater levels &depth profilingTape Guide: preventstape from scraping onthe top edge of the well c
21、asing.TLC Meter: anchored to thewell casing, with the leginserted in the tape guideto give stable operation.High quality mediumdensity polyethylene.Flat Tape: hangs straightin the well for accuratewater level & profilingmeasurements.Notes: 1. Calibrate only with 1,413 S/cm and 80,000 S/cmsolutions.
22、Calibrating with other solutions will cause errors in readings.2. Do not let the probe rest on the bottom of thecalibration cylinder.Notes: 1. The de-ionized water, calibration solutions and theprobe should all be at room temperature when conducting the calibration.2. Always ensure that no bubbles are trapped inside the probe shroud. Air bubbles will result in inaccurate calibrations.3. A repeat of the full calibration procedure.
