Thermo Fisher Scientific Alpha COND 500 User Manual

Page 16

5.3 Conductivity

Calibration

A 1-point Calibration is required for this transmitter. If
the calibration process is aborted, your transmitter
will revert to the previous calibration data.

1. Organize your calibration standard solution

in two beakers – one for rinsing and the
other for calibration. Prepare separate de-
ionized water for electrode rinsing.

2. Rinse the electrode in de-ionized water and

then rinse with the calibration standard.

3. Dip the electrode to the calibration standard

intended for calibration and swirl gently to
create a homogenous sample. Wait for the
reading to stabilize.

4. Press the CAL key to enter calibration

mode. The upper display will show the
measured reading based on the last
calibration setting whereas the lower display
will show the measured default reading of
the standard.

5. Use the

▲ or ▼ keys to adjust the upper

display to the calibration standard value.

Note: You can offset the conductivity reading within
± 40% from the default reading of the standard. The
minimum allowable calibration point is 10% of the full
scale reading of the range selected.

6. Press the ENTER key to confirm the calibration value and to return to the

measurement mode.

Note: To exit this program without confirming the calibration, press the

▲ and ▼

keys together (Escape).

Note: When there is a calibration error, the buffer icon and ERR annunciator will
appear together with a blinking electrode icon. Press both

▲ and ▼ keys together

TWICE to return to the measurement mode.

HOLD

MEAS

°C

1578

25.5

ATC

μS

CAL

1578

μS

CAL

1413

1578

μS