Pacific Research Solutions TDS - Manual (Page 8)

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21 P1
°
C TDS Probe 1 Temperature Calibration
This menu item is used to calibrate the number 1 conductivity probe temperature readout. As the TDS
monitor has been pre calibrated at the factory, probes will vary. To achieve the greatest accuracy, it will
be importation to calibrate the conductivity probe the monitor with a reference temperature. When
calibrating the monitor, place the probe into water with a known accurate thermometer. Wait for 3
minutes and then adjust the temperature to match the reference thermometer. It should be noted that
initial temperature accuracy of the probe and monitor is within specification of the temperature
compensated TDS measurements. Temperature calibration for accurate TDS measurement is not
required.
22 P2
°
C TDS Probe 2 Temperature Calibration
This menu item is used to calibrate the number 1 conductivity probe temperature readout. As the TDS
monitor has been pre calibrated at the factory, probes will vary. To achieve the greatest accuracy, it will
be importation to calibrate the conductivity probe the monitor with a reference temperature. When
calibrating the monitor, place the probe into water with a known accurate thermometer. Wait for 3
minutes and then adjust the temperature to match the reference thermometer. It should be noted that
initial temperature accuracy of the probe and monitor is within specification of the temperature
compensated TDS measurements. Temperature calibration for accurate TDS measurement is not
required.
23 AdC Analog to Digital Converter Test and Calibration
This menu is used at the factory for testing and initial calibration. There are no user adjustments that can
be performed to this item. For reference, this menu should display values in the range of 430 to 470.
Values outside of this range may demonstrate internal problems with the TDS monitor.