7070iX TRO Analyzer
Calibration and Validation | 23
Calibration Procedure for
2-point Calibration and
1-point Calibration
A 1-point or 2-point calibration can be performed on the
analyzer. Prior to performing a calibration prepare 1 or 2
calibration standards. If 2-point calibration, prepare two
standards that are ten-fold concentration units apart, ideally
bracketing expected sample concentration range. Due to the
possibility of iodide oxidation to iodine, preparation of
standards below 0.01 ppm is not recommended.
1. Select calibrate from the measurement screen.
Figure 22. Measurement Ch.1 TRO
2. Follow instructions on the screen to put the inlet valve in
the calibrate position.
Figure 23. Put inlet valve in calibrate position
3. Select calibrate and continue.
Figure 24. Select Calibrate
4. Select calibrate Sensor for TRO sensor calibration.
Figure 25. TRO Sensor Calibration
5. Select number of points and press enter.
Figure 26. Select number of Points
