-Primary Test: Check the raw voltages while calibrating in the standards. The high (1000 mg/L) should be around 2.0 volts. The low (10 mg/L) should be around 2.8 volts.
-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).
–How can I have my ISE read mV output instead of mg/L?
–Can I use Vernier water quality sensors in salt water or in a salt water aquarium?
–How do I sterilize an Ion-Selective Electrode?