Thermo Fisher Scientific CyberScan PC 510 - Manual (Page 14)

Instruction Manual PC 510
10
Calibrating for Conductivity:
1. If necessary, press the MODE key to select conductivity mode.
2. Rinse the probe thoroughly with de-ionised water or a rinse
solution, then rinse with a small amount of calibration standard.
3. If necessary, ensure that the probe’s yellow probe guard is
attached. 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.
4. Wait for the measured conductivity value to stabilise. If the READY
indicator has been activated (SETUP program P7.1 – see page
31), 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 key 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.
NOTES: When entering calibration mode, the meter will display the
factory default value. If the meter was previously calibrated, the display
may “jump” to the factory default / uncalibrated value when switching
from measurement to calibration mode.
To exit from Conductivity calibration mode confirming calibration,
DO NOT press the ENTER key in step 7. Press CAL/MEAS instead.
This will retain the meter’s old calibration data in the measuring range
of the calibration.
You can offset the conductivity reading up to ±40% from default
setting. If your measured value differs by more than ±40% clean or
replace probe as needed, or use a calibration standard with a higher
value as required.
A wide selection of high-quality calibration standards is available. See page 44 for more information.
Figure 9: Conductivity
calibration
MEAS
1 409 µS
ATC
°C 22.3
1 41 3 µS
ATC
°C 22.3
MEAS
READY
ENTER
RANGE
1 409 µS
ATC
°C 22.3
CAL
CAL
MEAS
1 41 3 µS
1 409
CAL
READY