Thermo Fisher Scientific EcoScan CON 6 & TDS 6 - Manual (Page 26)

Instruction Manual CON 6/TDS 6
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5.3 Taking Measurements
To take readings:
1)
Rinse the probe with de-ionized or distilled water before use to remove
any impurities adhering to the probe body. Shake or air dry. To avoid
contamination or dilution of your sample, rinse probe with a small volume
of your sample liquid.
2) Press ON to switch on meter.
3) Dip the probe into the sample.
4) Allow time for the reading to stabilize. Note the reading on the display.
NOTE: When dipping the probe into the sample, take care to
ensure that the liquid level is above its upper steel
band. Stir the probe gently in the sample to create a
homogenous sample. See Figure in Section 3.4.
5.4 Using Manual Ranging Function
By default your meter has auto-ranging ability and would automatically selects
the range in which your readings appear.
However, you may also manually select a specific range you want to measure.
This is possible by simply pressing ▲ key successively for each measurement
range. The five ranges are:
Conductivity
Range (CON 6)
TDS Range (TDS 6)
(if TDS factor is 0.5)
0 – 20.00 μS/cm 0 – 10.00 ppm
0 – 200.0 μS/cm 0 – 100.0 ppm
0 – 2000 μS/cm 0 – 1000 ppm
0 – 20.00 mS/cm 0 – 10.00 ppt
0 – 200.0 mS/cm 0 – 100 ppt