Tds Measurements; Data Hold; Min-Max Data Recording - Extech Instruments EC210 User Manual

TDS Measurements
1. Connect the electrode to the probe input socket at the bottom of the meter. Immerse the
probe in the measurement solution.
2. Switch the meter ON by pressing the POWER/ESC button. Press and hold the FUNCTION
button until the ppm units are displayed.
3. The lower display shows the temperature value.
4. The upper display indicates the TDS value (measured in ppm).
5. Hold the electrode in hand and fully immerse the sensing head in the standard solution
6. The upper display will show the ppm value of the measured solution. The bottom display
will show the temperature value of the measured solution.
7. Rinse the probe with distilled water after each use.
8. Press and hold the FUNCTION button for at least 2 seconds to return to the conductivity
measurement mode.
Solution Temperature
The lower display indicates the temperature of the measured solution. Refer to the Setup Mode
section for instructions on selecting
temperature compensation.
Data Hold
Press the Function/Hold key to freeze the displayed value. The LCD will display HOLD along with
the held reading. Press the Hold key again to release the data hold function.
MIN‐MAX Data Recording
When selected, the Data Recording function records the Min and Max readings:
1. Press the REC button once. The REC indicator will appear on the display. Press REC button
once again and REC MAX will display on the screen along with the maximum value.
2. Press REC again and the display will show REC MIN and the minimum value will be
displayed.
3. To release the held MAX or MIN reading, press the HOLD button while either the REC MAX
or REC MIN icons are visible; now only the REC icon will be visible. The meter is now
continuing to monitor the highest (MAX) and lowest (MIN) readings but is displaying real
time measurements. To view the MAX and MIN values again use the REC button as
described earlier.
4. To exit the Record mode, press and hold the REC button for at least 2 seconds. The display
will return to the normal operating mode.
o o
C/ F temperature units and for adjusting the automatic
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