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Conductivity Probe Troubleshooting and FAQs

About this FAQ

  • Created May 6, 2005
  • Updated Apr 15, 2013
  • Article #1402

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Conductivity Probe, order code CON-BTA, $95
Specifications and User Guide

TROUBLESHOOTING
-Primary Test: Place the toggle switch at the desired setting, run the data-collection program, and take a reading in a solution of known TDS. We suggest using the calibration solution that comes with the probe. It is 500 mg/L TDS or 1000 microsiemens/cm.
-Secondary Test: If you change the setting of the toggle switch while Logger Pro 3, LabQuest App, or a TI calculator program is running, reset the program so that the calibration equation for the new setting is selected.

RELATED TIL ENTRIES
-TIL 638: Why am I getting interference when I put two sensors in the same solution?
-TIL 2341: How do I manually calibrate my sensor in Logger Pro?
-TIL 2342: How do I store the calibration for my sensor using Logger Pro?
-TIL 760: Do you sell Conductivity Standards?
-TIL 2774: Does the conductivity probe have different calibrations?
-TIL 2959: How is the temperature compensation calculated on the CON-BTA?

SPECIFICATIONS
-order code: CON-BTA
-Range of Conductivity Probe:
-Low Range: 0 to 200 microsiemens/cm (0 to 100 mg/L TDS)
-Mid Range: 0 to 2000 microsiemens/cm (0 to 1000 mg/L TDS)
-High Range: 0 to 20,000 microsiemens/cm (0 to 10,000 mg/L TDS)
-Resolution (with LabPro, Go! Link, ULI II, and Serial Box):
-Low Range: 0.1 microsiemen/cm (0.05 mg/L TDS)
-Mid Range: 1 microsiemen/cm (0.5 mg/L TDS)
-High Range 10 microsiemen/cm (5 mg/L TDS)
-Accuracy using factory calibration: +/-8% of full-scale reading for low range
+/-3% of full-scale reading for mid range
+/-4% of full-scale reading for high range
-Accuracy using custom calibration: +/-2% of full-scale reading for low range
-Response Time: 98% of full-scale reading in 5 seconds, 100% of full-scale in 15 seconds
-Temperature Compensation: automatic from 5 to 35 deg C
-Temperature Range(can be placed in): 0 to 80 deg C
-Cell Constant: 1.0 1/cm
-Description: ABS body, parallel carbon (graphite) electrodes
-Dimensions: 12 mm OD amd 150 mm length

CALIBRATION
-You do not have to perform a new calibration when using the Conductivity Probe for most experiments in the classroom. However, if your experimental application requires more accurate readings, you should calibrate your sensor.
-See the user manual for calibration instructions: Specifications and User Guide

RELATED VERNIER PRODUCTS
-Conductivity standard solution, low range, Standard Low Concentration (150 μS/cm) Solution, order code CON-LST, $16 (500 mL)
-Conductivity standard solution, mid range, Standard Medium Concentration (1413 μS/cm) Solution, order code CON-MST, $16 (500 mL)
-Conductivity standard solution, high range, Standard High Concentration (12880 μS/cm) Solution, order code CON-HST, $16 (500 mL)

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