Thermo Fisher Scientific Alpha TDS 200 User Manual
Page 11

7
4 MEASUREMENT MODE
Press MODE to toggle between:
•
TDS measurement mode and
•
Temperature measurement mode
Total Dissolved Solids Measurement Mode
The controller displays the selected TDS range number, R X (X ranges from 1 to 8), for 2
seconds before displaying the TDS measurement.
TDS Range
Range No., R
Resolution
Cell Constant
0.00 – 10.00 ppm
1
0.01 ppm
0.1
0.0 – 100.0 ppm
2
0.1 ppm
0.1
0.0 – 100.0 ppm
3
0.1 ppm
1
0 – 1000 ppm
4
1 ppm
1
0.00 – 5.00 ppt
5
0.01 ppt
1
0.00 – 10.00 ppt
6
0.01 ppt
1
0.0 – 100.0 ppt
7
0.1 ppt
1
0.0 – 100.0 ppt
8
0.1 ppt
10
Temperature Measurement mode
Press MODE key once to view the temperature measurement. The display shows ATC
(Automatic Temperature Compensation) or MTC (Manual Temperature Compensation),
then the current measured temperature (for ATC) or the set temperature (for MTC). The
o
C annunciator lights when you are measuring temperature.
NOTE: After pressing the MODE key to display Temperature, if there is no further key-
press, the Controller will automatically revert to TDS Measurement mode after about 30
seconds.
See Setup program P4.0 for further instructions.