Thermo Fisher Scientific CyberScan PC 300 User Manual
Page 16
Instruction Manual PC 300
12
Do not reuse calibration solutions after calibration. Contaminants in the solution can affect the
calibration, and eventually the accuracy of the measurements. Use fresh calibration solution
each time you calibrate your meter.
All new calibration data will over-ride existing stored calibration data for each measuring range
calibrated.
Calibrating for Conductivity:
1. If necessary, press the MODE key to select
conductivity mode.
2.
Rinse the probe thoroughly with de-ionized water
or a rinse solution, then rinse with a small amount
of calibration standard.
3. Dip the probe into the calibration standard.
Immerse the probe tip beyond the upper steel
band. Stir the probe gently to create a
homogeneous sample. See Figure 8.
4. Wait for the measured conductivity value to
stabilize. If the READY indicator has been
activated (SETUP program P7.1), the READY
annunciator lights when the reading is stable.
5. Press
CAL/MEAS to enter conductivity or TDS
calibration mode. The CAL indicator will appear in
the upper right corner of the display.
6. Press
the or
keys to change the value on the
primary display to match the value of the
calibration standard.
7. Press
ENTER to confirm calibration value. The
meter returns to the MEAS (measurement) mode.
8.
Repeat steps 1 to 7 for other measuring ranges.
See figure 8.
Figure 8 - Conductivity Calibration