Thermo Fisher Scientific EcoScan CON 6 & TDS 6 - Manual (Page 34)

Instruction Manual CON 6/TDS 6
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6.3 Automatic Calibration (for CON 6)
The automatic calibration allows you to quickly calibrate the meter to any of the
four widely used conductivity calibration standards. For a list of calibration
standards refer to Table 1 in Section 4.3.
In the manual calibration mode, you can use you own customized conductivity
calibration standard to calibrate this meter.
1)
Enter the advanced setup as described in
Section 6.1.
2) Press ▲ or ▼ key until [ACAL] appears on the
LCD. Press ENTER key.
3) Press ▲ or ▼ key to select either [Yes] or [no].
4) Press [ENTER] key to select. The meter will take
you back to the menu, [ACAL].
5) Press ▲ or ▼ key to move to the next menu or
press CAL to exit to measurement mode.
6.4 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
Addendum 2 – Calculating TDS Conversion Factor.
You can also look up at various Chemical reference
books for TDS factor for various types of salt.
You can set the TDS conversion factor between 0.4
and 1.0; meter default is 0.5.
1)
Enter the advanced setup as described in Section 6.1.
HOLD
ENTER
HOLD
ENTER