PCE Health and Fitness PCE-TUM 50 Instruction Manual page 11

Total Suspended Solids Measurement
The PCE-TUM 50 turbidity meter contains the Total Suspended Solids measurement mode that need to enter the correct conversion factor prior to
measurement.
Calculating the TSS factor
3.1 Rinse the filter disk with distilled water to remove any solids that may remain.
3.2 Put the filter disk in a watch glass and dry them in a 104°C drying oven for 1 hour.
3.3 Remove the filter disk and watch glass and put in a desiccator. Immediately cover the desiccator. Wait for them decrease to room temperature.
3.4 Weigh the filter disk and watch glass and record the mg value as B.
3.5 Filter the 100ml of sample through pre-weighed filter disk.
3.6 Put the filter disk and watch glass in a 104°C drying oven for 1 hour.
3.7 Remove the filter disk and watch glass and put in a desiccator. Immediately cover the desiccator. Wait for them decrease to room temperature.
3.8 Weigh the filter disk and watch glass and record the mg value as A.
3.9 Calculate the TSS value use the formula below:
(A - B)
TSS (mg/L) =
0.1
4.0 Fill the vial with the sample.
4.1 Repeat the turbidity measurement steps 1.1 to 1.6 and record the NTU value.
4.2 Calculate the TSS conversion factor use the formula below:
NTU
Factor =
TSS (mg/L)
Setting the TSS factor
5.1 Press and hold the key for 3 seconds to enter the setup menu.
Press the ◄ or ► key to select the "TSS Factor", press the
5.2
Press the ◄ or ► key to set the conversion factor, press the
5.3
Enter
key to confirm.
Enter
key to return to the measurement mode.
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