-Primary Test: Check the readings in the standards. The high should be around 1000 mg/L. The low should be around 10 mg/L.
-Secondary Test: Refer to General tips for using Ion Selective Electrodes (ISE).
RELATED TIL ENTRIES
–Do any of your sensors require special storage?
–Do you sell ISE Standards?
–General tips for using Ion Selective Electrodes (ISE).
–Can I use Vernier water quality sensors in salt water or in a salt water aquarium?
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Range (concentration) = 1 to 35,000 mg/L (or ppm)
Accuracy after calibration = ±10% of full scale (calibrated 10 to 1000 mg/L)
Interfering ions = CN–, Br–, I–, OH–, S2, NH3
pH range = 2–12 (no pH compensation)
Temperature range = 0–80°C (no temperature compensation)
Electrode slope = –56 ±3 mV/decade at 25°C
Electrode resistance = 1 to 5 MΩ
Minimum sample size = Must be submerged 2.8 cm (1.1 in)
Potential readings, typical = 114 mV in 1000 mg/L, 230 mV in 10 mg/L
dimension ISEA: 8.5 cm height x 3 cm wide x 1.75 cm depth
dimension electrode: 15.5 cm length, 12 mm OD
shaft diameter: 12mm OD