USP 645 - Easy and accurate conductivity calibration with an insacal master meter
With an INSACAL master meter you get a very flexible calibration tool. You can calibrate by closed loop procedures or in an open beaker. This allows you to choose whether your cell is calibrated on-site, in-situ or not. If customers use a "Master Meter" these need to be calibrated. INSACAL master meters are always delivered with a closed sensor to avoid influence from the surroundings. The transmitter settings can be protected with password to avoid unintended changes in settings e.t. cell constant.
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Download the Insacal Conductivity Master Meter Data Sheet
http://www.insacal_general_specifications.pdf |
Standard accuracy
Total: ( etc etc etc.................................................................................................)
e.g. Master displays 100,0uS/cm Ambient temperature = 30C Cell constant determined by a 100uS/cm standard solution (Ucc = 0.36%) Coverage factor = 2 (level of confidence of approximately 95%) Total uncertainty = 0.75% Enhanced accuracyThe indicator/transmitter is calibrated using a high precision resistor prior to the loop-calibration.
e.g. Master displays 100,0uS/cm Ambient temperature = 30C Cell constant determined by a 100uS/cm standard solution (Ucc = 0.36%) Coverage factor = 2 (level of confidence at approximately 9%%) Standard resistor acc = 0.05%. Distribution: square Calibration of standard resistor: 100ppm Confidence interval: 2. Temperature influence of standard resistor 15ppm Distribution: square Total uncertainty = 0.37% |