1. Overview--------------------------------------------------------------------------------------------------------

2. Technical Specifications--------------------------------------------------------------------------------------------------

3. Instrument Description--------------------------------------------------------------------------------------------------

3.1. LCDdisplay----------------------------------------------------------------------------------------------

3.2.Operation keys-------------------------------------------------------------------------------------------------

3.3.Storage, display, and clearing of measurement information-------------------------------------------------------------------

3.4. RS232communication--------------------------------------------------------------------------------------------

3.5. socket----------------------------------------------------------------------------------------------------

4. pHmeasurement----------------------------------------------------------------------------------------------------

4.1.preparation----------------------------------------------------------------------------------------------

4.2.Electrode calibration----------------------------------------------------------------------------------------------

4.3.Solution measurement----------------------------------------------------------------------------------------------

4.4.Parameter Settings----------------------------------------------------------------------------------------------

4.5.Precautions----------------------------------------------------------------------------------------------

4.6.Self diagnostic information-------------------------------------------------------------------------------------------

5. mVandORPmeasurement-----------------------------------------------------------------------------------------

5.1.Solution testing----------------------------------------------------------------------------------------------

5.2.Precautions----------------------------------------------------------------------------------------------

5.3.Parameter Settings----------------------------------------------------------------------------------------------

6. Conductivity measurement-----------------------------------------------------------------------------------------------

6.1.preparation----------------------------------------------------------------------------------------------

6.2.Electrode calibration----------------------------------------------------------------------------------------------

6.3.Solution testing----------------------------------------------------------------------------------------------

6.4.Important Notes----------------------------------------------------------------------------------------------

6.5.Parameter Settings----------------------------------------------------------------------------------------------

6.6.Precautions----------------------------------------------------------------------------------------------

7. Instrument completeness-----------------------------------------------------------------------------------------------

8. Instrument guarantee matters--------------------------------------------------------------------------------------------

Appendix I List of Instrument Parameter Settings

Appendix II List of Instrument Factory Reset Settings

Appendix III List of Code Symbols and Abbreviations

This instrument combines advanced electronic technology, sensor technology, and software design. It is a cost-effective laboratory precision modelpHThemVAnd conductivity multi parameter measuring instrument. Suitable for industries such as petroleum, chemical, pharmaceutical, power plant, and environmental protection, especially in the fields of education and scientific research, it has a wider range of applications.

This instrument has a built-in microprocessor chip, beautiful appearance, rich functions, and easy use, with the following significant features:

1.1.well-formedGLPRequirement, with automatic calibration, automatic temperature compensation, data storage, timed measurementRS232Intelligent functions such as output, clock display, function settings, and self diagnostic information.

1.2.By using digital filtering and slip technology, the response speed of the instrument and the accuracy of measurement data are intelligently improved, and the "" icon is displayed when the measurement value is stable.

1.3.automatic recognition13plantpHThere are four series of standard buffer solutions to choose from: European and American seriesNISTSeries, Chinese series, and custom solutions.

1.4.Can set high-purity waterpHMeasurement mode and addition of ammonia pure waterpHMeasurement mode, for these two special typespHMeasurement mode, in addition to the general slope temperature compensation, also adds solution temperature compensation function, greatly improving measurement accuracy, especially suitable for use in industries such as power and petrochemicals.

1.5.haveEHRedox potential measurement mode, directly displaying the relative potential to the standard hydrogen electrodeORPValue.

1.6.Adopting advanced automatic frequency conversion and automatic voltage regulation technology to maintain a constantK=1Expansion of the measurement range of conductive electrodes10Double, only a little calibration is needed to meet the requirements200 mS/cmWithin the scopeThe measurement accuracy requirement is a calibration function of this instrument *.

1.7.automatic recognition8There are two series of conductivity standard solutions to choose from: European and American series and Chinese series.

1.8.Automatically select the conductivity measurement range, for values less than10MS/cmThe instrument automatically performs nonlinear temperature compensation testing on high-purity water, greatly improving the measurement accuracy of high-purity water, especially suitable for use in the power, microelectronics, and pharmaceutical industries.

1.9.The instrument circuit board adoptsSMTSMT technology improves the reliability of product processing.

1.10.The instrument has a product serial number with an asterisk (*).

1.11. The instrument complies withIP54Dustproof and splash proof rating, all sockets are sealed with silicone caps for protection.