The DIST4 HI98304 EC Tester (0.00 to 19.99 mS/cm) is used to measure conductivity in drinking water, water conditioning, reverse osmosis, cooling towers, wastewater, laboratories, agriculture, aquaculture and aquariums, hydroponics and printing industry.
It is a robust, precise meter that fits in a pants pocket, offering fast and accurate conductivity readings.
These meters have a graphite amperometric electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of EC/TDS is based on Ohm's Law, I = V/R, where R depends on the distance between two pins and their surface. Oxidation changes both distance and surface area which will affect accuracy. The non-oxidizable graphite pins in DiST's are capable of delivering an optimal surface for accurate and reliable results.
When calibration is required, simply dip the tip of the electrode into the calibration solution and adjust the potentiometer to the side of the meter.
An easily removable lid makes battery changes simple. The battery life is approximately 250 hours of continuous use, so it is easy to guess that this change will be made not many times.
In summary, the main features are:
• Simple to use
• Airtight
• Replaceable graphite electrode
• Temperature sensor
• Calibration is one point