Thermo Fisher Scientific CyberScan 6000 Series Meters v.2 - Manual (Page 33)

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mV Operation: mV Measurement
PH6000, PC6000, PH6500, PC6500 and PCD6500 meters
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In the mV mode, you will be able to make measurements in either absolute or relative millivolts,
access the mV Setup screens and print your results to a printer or a computer.
Connect the electrodes you will be using to the meter.
Absolute mV Measurements
1. Access the mV measure screen from the main screen
2. Immerse the rinsed electrode(s) in the sample and stir gently.
3. Record the measurement when STABLE is displayed.
Relative mV Standardization and Measurement
In the relative mV mode, we have an option either to adjust the displayed value within a ±150 mV
window or equate it to zero.
1. Access the mV Measure screen from the main screen.
2. Immerse the rinsed electrode(s) in the mV (ORP) standard solution and wait for STABLE
to appear.
3. Touch rel mV to access the Relative mV screen. When rel mV is touched, a dialog box
appears.
4. Touch SET to set relative mV using numeric
keypad and press Enter to confirm value.
OR
Touch DEFAULT to accept the default
value (0 mV)
OR
Touch CANCEL to cancel and return to previous screen.
5. The meter is now ready to take relative mV measurements.
Rinse the electrode with water and shake dry. Do not wipe the electrode. Wiping the electrode
can cause a static charge on the glass bulb that will result in inaccurate readings.