Thermo Fisher Scientific CyberScan 6000 Series Meters v.2 - Manual (Page 26)

111
pH Operation: About pH Measurement
PH6000, PC6000, PH6500, PC6500 and PCD6500 meters
Technology Made Easy ...
For the PH6000, PC6000, PH6500, PC6500 and PCD6500 meters, in the pH measurement
mode, you will able to measure the pH of a wide variety of samples. Before measuring pH, you
will need to standardize the meter using buffers with known pH values. It is good practice to
standardize the meter frequently using a minimum of two buffers. Using two buffers allows the
meter to calculate and display an actual slope for the electrode, and therefore produce more
accurate measurements. If there is no standardization in the memory of the meter or if only one
buffer has been used to standardize the meter, the slope value will appear as “......”.
You can standardize your meter using automatic or manual buffer recognition. With the Automatic
buffer recognition activated (ON), the meter will automatically recognize the buffers from the
chosen buffer group and flash the current buffer. When the reading is stable, you must confirm
the buffer.
In the Manual buffer recognition mode, you must enter the buffer value during the standardization
procedure. The meter will flash the manually entered buffer you must confirm the buffer when the
reading is stable. During the standardization procedure, you may accept the buffer value before
the meter recognizes it as stable by touching confirm.
See ‘pH Setup: Select Auto Read Mode’ section to select desired buffer recognition.
Remember to setup your pH measuring mode parameters. Refer to the pH Setup section for
instructions. Connect the electrodes you will be using to the meter.
Touch the Channel 1, 2, or 3 buttons (single pH channel screen) to access the
standardization screen. Standardization is not available from multiple display modes.
pH measure screen without standardization