The probe compensates for the change in conductivity in a solution as temperature increases or decreases through the use of an integrated temperature sensor. Referenced at 20°C or 25°C, many conductivity measurements can be inaccurate. With the InLab 740, used in conjunction with a conductivity meter, this temperature compensation can be made automatically.With the purpose of aiding GLP requirements, the InLab 740 ships with a test certificate, stating the actual cell constant of each individual sensor. To further promote ease of use, the cell constant is also printed on the probe’s cable. With a V4A stainless steel measuring cell, very little, if any, carryover will occur, thus ensuring highly accurate readings, according to the manufacturer. The InLab 740 was designed with a measuring range of 0.001 to 500 µS/cm, and a temperature range of 0 - 70°C. The probe shaft is made of PVC Steel V4A, with a Mini-Din cable connection. The InLab 740 shaft measures 120 mm in length, with a 12 mm diameter.
The new InLab® 740 conductivity probe for testing ultra pure water provides laboratory professionals with extremely accurate automatic temperature compensation for very low conductivity measurements.