LaMotte 5 Series TDS Meter - Manual (Page 26)

Automatic Calibration (for CON 6)
The automatic calibration allows the meter to be quickly
calibrated to any of the four widely used conductivity
calibration standards. For a list of calibration standards
refer to Table 1.
In the manual calibration mode, customized conductivity
calibration standard can be used to calibrate this meter.
1. Enter Advanced Set-up.
2. Press
or button until [ACAL] appears on the
LCD. Press ENTER button.
3. Press or button to select either [Yes] or [no].
4. Press [ENTER] button to select. The meter will
return to the menu, [ACAL].
5. Press or button to move to the next menu or press CAL to exit to
measurement mode.
Setting the TDS Factor (for TDS 6)
The concentration of salts dissolved in solution increases the conductivity of
that solution. This relationship varies from salt to salt and is roughly linear
over a given range for a given salt. The TDS conversion factor is the number
used by the meter to convert from conductivity to TDS.
To calculate the TDS conversion factor refers to
Appendix 2 – Calculating TDS Conversion Factor.
TDS conversion factors for various types of salts can
also be found in chemical reference books.
The TDS conversion factor can be set between 0.4 and
1.0. The meter default is 0.5.
1. Enter Advanced Set-up.
2. Press
or button until [tdS] appears on the LCD.
Press ENTER button.
3. Press or button to select a value between 0.4 to
1.0.
4. Press ENTER button to select. The meter will take
return to the menu, [tdS].
5 .Press or button to move to the next menu or press CAL to exit to the
measurement mode.
HOLD
ENTER
Press
ENTER
to
c
onfirm
s
election;
o
r
Press
CAL
to
e
scape
without
confirming
s
election
Press
ENTER
to
c
onfirm
s
election;
o
r
Press
CAL
to
e
scape
without
confirming
s
election
HOLD
ENTER
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