TDS Level Testing Meter
Details of TDS Level Testing Meter
Model: HI98301
This device features a large multi-level LCD that displays both TDS and temperature readings at a time. The TDS readings display with a 1 ppm resolution and with an accuracy of ±2% full scale. The TDS range of the HI98301 is from 0 to 2000 ppm. An exposed heat sensor allows for rapid automatic temperature compensated TDS measurements. Temperature can set to display in ℃ or ℉. The LCD screen has stability and calibration tag indicators. The battery percent level is displayed at startup warning the user to the balance battery power that is available.
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TDS readings are performed by an amperometric graphite electrode that stops oxidation, providing better repeatability in measurements. The use of graphite also reduces the polarization effect common with amperometric testers that use two stainless steel pins.
Calibration can do by pressing the special calibration button. Once in calibration mode submerge the probe in 1382 ppm calibration standard. When the standard value is read and stability reached, the meter will automatically accept and store the calibration value.
Setup options include automatic shut-off timing and temperature unit displayed. Automatic shut-off options are to turn the meter off after 8 minutes, 60 minutes, or disabled. Similarly, to enter the setup mode the user presses a button in the battery slot.