Reed Instruments R3000SD - Ph Measurement Mode (Automatic Temperature Compensation); MV Measurement Mode; Data Hold; Recording Maximum and Minimum Readings

9
pH Measurement Mode (Automatic Temperature Compensation)
1. Connect the optional temperature probe into the temperature input jack.
2. Connect the optional pH electrode into the pH/ORP input BNC jack.
3. Press the FUNCTION button to select pH mode.
4. Place both the temperature probe and pH electrode into the
measured solution, so that the tip of the electrode and junction are
fully immersed and stir at a moderate, uniform rate. The top of the
LCD will display the pH value while the bottom part of the LCD will
display the setting for the manual temperature compensation value.
Note: When measurements have been completed, be sure to store the pH
electrode in its protective cap.
mV Measurement Mode
This meter has a built in mV (millivolt) measurement function, which
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the range of ±1999 mV.
1. Connect the Optional ORP Electrode into pH/ORP Input BNC Jack.
2. Press the FUNCTION button to select mV (ORP) mode.
3. The top of the LCD will display the mV value.
Data Hold
1. While taking a measurement, press the HOLD button to freeze the
current readings on the display.
2. While in this mode a HOLD symbol will appear.
3. Press the HOLD button again to resume normal operation.
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button are disabled.
Recording Maximum and Minimum Readings
1. Press the REC button to enter recording mode as indicated by
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and minimum readings.
2. While in recording mode;
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