Hach-Lange 9187 sc - Manual (Page 25)

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Operation
5. Select 1 POINT SAMPLE and select the available Output Mode (Active, Hold, or
Transfer) from the list box and confirm.
6. MOVE CLEAN PROBE TO SAMPLE is displayed. Confirm to continue.
7. VALUE: X.XX pH, TEMP: XX.X °C is displayed. Confirm to continue.
8. Adjust the SAMPLE VALUE: X.XX pH with the keypad and confirm.
9. COMPLETE, OFFSET: X.XX pH, SLOPE: XX.X% display. Confirm to continue.
10. Return Probe to Process displays. Confirm.
4.6.2.2 Process pH 2 Point Sample
1. From the Main Menu, select SENSOR SETUP and confirm.
2. Highlight the appropriate sensor if more than one is attached and confirm.
3. Select CALIBRATE and confirm.
4. Select PROCESS PH and confirm.
5. Select 2 POINT SAMPLE and aelect the available Output Mode (Active, Hold, or
Transfer) from the list box and confirm.
6. MOVE CLEAN PROBE TO SAMPLE1 and confirm.
7. VALUE: X.XX pH, TEMP: XX.X °C is displayed. Confirm to continue.
8. Adjust the SAMPLE VALUE: X.XX pH to the known pH with the keypad and confirm.
9. MOVE CLEAN PROBE TO SAMPLE2, Press ENTER to Continue is displayed.
Confirm.
10. VALUE: XX.XX pH, TEMP: XXX °C is displayed. Confirm to continue.
11. Adjust the second SAMPLE VALUE: X.XX pH to the known pH with the keypad and
confirm.
12. VALUE: XX.XX pH, TEMP: XXX °C IS displayed. Confirm to continue.
13. COMPLETE, SLOPE: XXX.X%, OFFSET: X.XX pH is displayed. Confirm to continue.
14. Return Probe to Process displays. Confirm.
4.6.3 Concentration Calibration
9184sc
To test for Total Free Chlorine, use the Total Free Chlorine Calibration Method, with the
manufacturer DPD test kits (Cat. No. 2105545). These test kits go with the DR/4000 and
DR/2500 spectrophotometers and the DR/800 colorimeter.
Use the Pocket Colorimeter II ™ for measuring free chlorine concentrations with the DPD
method that is available from the manufacturer (Cat. No. 5870023) for all other 9184sc
uses.
9185sc
To test for Ozone, use the Indigo Method, Ozone HR AccuVac test (Cat. No. 25180-25)
that goes with the DR/4000, DR/2500, DR/890, and the Pocket Colorimeter II.