MODEL SOLU COMP II | SECTION 6.0 |
| CALIBRATION |
6.7 ORP CALIBRATION
6.7.1 Purpose
1.For process control, it is often important to make the measured ORP agree with the ORP of a standard solu- tion.
2.During calibration, the measured ORP is made equal to the ORP of a standard solution at a single point.
6.7.2 Preparation of ORP standard solutions
ASTM
Iron (II) - iron (III) standard is available from Rosemount Analytical as PN
6.7.3 Procedure
Calibrate | Hold |
Program | Display |
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Calibrate? |
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Sensor1 | Sensor2 |
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CalSensor1? |
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Measurement | Temp |
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Live | 600mV |
CalS1 | +0000mV |
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1.Press MENU. The main menu screen appears. Choose Calibrate.
2.Choose Sensor1 (ORP sensor).
3.Choose Measurement.
4.The top line shows the actual ORP or redox potential (S1Live). Once the reading is stable, change the number in the second line to the desired value. Press ENTER.
5.The display returns to the screen in step 2. Choosing Sensor2 will per- mit the conductivity measurement to be calibrated.
6. To return to the main display, press MENU followed by EXIT.
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