Pyxis Porta-Check EZ-100 User Manual
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Pyxis Porta-Check EZ-100 User Manual

Ph meter
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EZ-100
Porta-Check™
pH Meter

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Summary of Contents for Pyxis Porta-Check EZ-100

  • Page 1 User Manual EZ-100 Porta-Check™ pH Meter...

  • Page 2: Table Of Contents

    EZ-100 Porta-Check Manual Contents 1 Introduction ..................- 1 - 1.1 Introduction ................- 1 - 1.2 Technical Specification ............- 2 - 1.3 Function Introduction ............- 3 - 2 Safety Notices ..................- 4 - 3 Terms Explanation ................- 5 - 4 Overview and Installation ..............
  • Page 3 EZ-100 Porta-Check Manual 6.2 Electrode usage and maintenance .......... - 30 - 6.3 Troubleshooting ..............- 31 - 7 Technical Support ................- 32 - Accessories ................- 32 - 8 Appendix ..................- 34 - Appendix 1 ................- 34 -...

  • Page 4: Introduction

    EZ-100 Porta-Check Manual 1 Introduction 1.1 Introduction The EZ-100 Porta-Check is a portable pH meter is not only suitable for sampling, measuring the pH value of aqueous solution and measuring electrode potential (mV) value in laboratories of industrial and mining, research institutes, but also especially suitable for pH measurement in field and mobile environment ...

  • Page 5: Technical Specification

    EZ-100 Porta-Check Manual 1.2 Technical Specification Table 1-2 Instrument Specifications EZ-100 Model pH level 0.01 pH (-1999 ～ 1999)mV Range Minimum resolution Electronic unit indication error ±0.1%(FS) Electronic unit repeatability ≤1×10 Ａ Electronic unit input current ≥1×10 Ω Electronic unit input impedance (-2.00 ～...

  • Page 6: Function Introduction

    EZ-100 Porta-Check Manual 1.3 Function Introduction Table 1-2 Main functions Function Explanation ● Backlight Power ● Reset settings ● Power failure protection Basic function ● Anti-interference automatic recovery ● Automatic shutdown Protection IP65 ● Default balance settings ● Auto-lock reading Reading auto-read and function...

  • Page 7: Safety Notices

    EZ-100 Porta-Check Manual 2 Safety Notices Please read the entire contents of this manual carefully before use, and please keep this manual properly. The user MUST use the instrument following this manual to avoid damage to the user and equipment. Before using the meter, READ the following notes: ...

  • Page 8: Terms Explanation

    EZ-100 Porta-Check Manual 3 Terms Explanation  pH Slope: The amount of potential change generated by each 1 pH change, expressed in mV/pH or by 100% Theoretical Slope (PTS). pH = - log[H], where [H] means molar concentration (mol/L) of H ions.

  • Page 9: Overview And Installation

    EZ-100 Porta-Check Manual 4 Overview and Installation 4.1 Overview 1 Meter Body 2 Power Key Function selection key Display 5 Socket protective cap Figure 4-1 Overview-Front View 6 Power sockets 7 Wristbands 8 Flip Tilting Stand 9 Electrode Holder 10 Electrode Figure 4-2 Overview- Back View - 6 -...

  • Page 10: Instrument Installation

    EZ-100 Porta-Check Manual 11 Temperature electrode connectors 12 pH electrode connectors 13 Electrode protection cap 14 pH electrodes Figure 4-3 Electrodes and connectors 4.2 Instrument installation 4.2.1 Wristband Installation Push the wrist strap switch at the wrist strap head to open the closed round hole, Snap the opened round hole card slot into the shaft of the corresponding instrument housing and close the round hole.

  • Page 11: Electrode Connection

    EZ-100 Porta-Check Manual Figure 4-4 Wristband Installation 4.2.2 Electrode Connection Insert the electrode holder into the T-shaped port corresponding to the meter body; Insert the pH electrode into the electrode holder and hold it firmly; Insert the temperature electrode connector of the measuring electrode into the corresponding place on the meter;...
  • Page 12 EZ-100 Porta-Check Manual Figure 4-5 Electrode connection - 9 -...

  • Page 13: Instrument Operation

    EZ-100 Porta-Check Manual 5 Instrument Operation 5.1 Screen Icons The meter uses segment LCD as the display, and the overall design is as follows: The upper shows the status prompt area; the middle is the measurement result area; the lower right is the current percent slope, and the bottom is the main function area, including measurement function, calibration function, setting function and viewing function.
  • Page 14 EZ-100 Porta-Check Manual Table 5-1 Symbol Explanation Symbol Explanation Note Display during balance Auto-read measurement Display during continuous continuous-read measurement All four segments are lit up in Reading state stable state In the auto-read mode , when the reading is stable, end the Reading is locked measurement, the result has locked.
  • Page 15 EZ-100 Porta-Check Manual Symbol Explanation Note Represented by character %PTS Percentage slope value string %PTS Serial number Display when viewing data Measurement Calibration Setting View the result - 12 -...

  • Page 16: Key Functions

    EZ-100 Porta-Check Manual 5.2 Key Functions Figure 5-2 Instrument keys - 13 -...
  • Page 17 EZ-100 Porta-Check Manual Table 5-2 Key Function Explanation Explanation Note  Press to switch on the instrument.  Press and hold for more than 3 seconds to Power key switch off.  Can be used as a backlight power key after switching on.

  • Page 18: Instrument Settings

    EZ-100 Porta-Check Manual 5.3 Instrument Settings 5.3.1 Switch On/Off Table 5-3 Characters displayed on the power operation interface Character display Explanation Switch On, Software Version Switch Off Press to start. The meter performs self-test, and then enters the measurement state. If it cannot be turned on, the built-in lithium battery may be insufficient.

  • Page 19: Function Settings

    EZ-100 Porta-Check Manual 【TIPS】  Please use the default power charger for charging, so as not to damage the instrument and bring you unnecessary losses  Please check the electrode sockets on the back of the meter, and make sure that they are connected with measuring electrodes or short-circuit plugs, otherwise it may damage the high-resistance components of the meter and bring you unnecessary...
  • Page 20 EZ-100 Porta-Check Manual The meter supports a variety of functions, including setting reading mode, the manual temperature value, viewing stored results, setting the automatic switch-off time, factory reset, etc. The user presses the "Setting" key, the meter will display the setting logo, SEL and serial number, the user presses up and down key to adjust, press the "Cal/Enter"...
  • Page 21 EZ-100 Porta-Check Manual Figure 5-4 Two reading modes display 【TIPS】 In the measurement state, long press the "Meas/Del" key to switch the reading mode. 5.3.2.2 Temperature Settings The meter supports the connection of temperature electrodes, which can be automatically compensated. If the user does not connect the temperature electrode, the user needs to use a thermometer to measure the temperature of the solution.
  • Page 22 EZ-100 Porta-Check Manual Figure 5-5 Setting temperature value display 5.3.2.3 View the data The meter supports storage of measurement results, up to 200 sets are allowed to be stored. In the measurement state, press the "Setting" key to select the function of viewing stored results, the meter first displays the total number of stored results, and then displays the latest stored data, as shown in the figure, user can press the up and down key to view each stored result.
  • Page 23 EZ-100 Porta-Check Manual Figure 5-6 Viewing the storing results If the user wants to delete the measurement results, there are two deletion methods: single deletion or all deletion, the user presses the up and down key to select the deletion method, dELonE 1 means to delete a single data, dEL All 2 means to delete all data, after selecting, press the "Cal/Enter"...

  • Page 24: Calibration

    EZ-100 Porta-Check Manual 5.3.2.5 Reset settings When the meter is not working. Users can reset the meter from the default’s backup. The default setting includes the electrode slope as 100%, the temperature as 25.0°C, continuous reading mode, automatic shutdown as close etc.
  • Page 25 EZ-100 Porta-Check Manual Character display Explanation Display when calibration fails, indicating Error. Display when the confirmation is valid during calibration, indicating OK. Display when calibration is completed. The pH electrode has a certain drift in different use environments or when it has not been used for a long time, resulting in different electrode slopes and zero points.
  • Page 26 EZ-100 Porta-Check Manual Wash the pH electrode repeatedly with distilled water, put it in a certain standard buffer solution (such as 7.00pH standard buffer solution), the instrument displays pH value and temperature value (such as 7.00pH, 25.0°C). If the meter is not connected to a temperature electrode, you need to use a thermometer to measure the temperature value of the standard solution, press the"Setting"key and set the current temperature value (such as 25.2°C) with the up and down key, and press the "Cal/Enter"...
  • Page 27 EZ-100 Porta-Check Manual you can manually press the "Cancel" key to terminate the calibration. If the user uses a non-standard pH buffer solution to calibrate the electrode, the user must know the relationship between the pH value of the non-standard solution and the temperature in advance, that is, the nominal pH at a certain temperature, and then control the temperature of the constant temperature tank to make the standard solution reach specified temperature value.

  • Page 28: Measurement

    EZ-100 Porta-Check Manual 【TIPS】 Standard pH buffer solutions are usually obtained in two ways, users can prepare or purchase standard solutions by themselves  Customized: Please refer to appendix to prepare pH standard buffer  Purchase standard buffers: Users can also directly purchase certified standard buffers produced by professional manufacturers, very convenient.
  • Page 29 EZ-100 Porta-Check Manual solution can be normally measured. The meter supports two reading modes: continuous measurement mode and balanced measurement mode. If it is a balanced reading mode, after the data is stable, the meter will automatically lock the measurement results (the lock sign will be displayed, and the measurement results will not change);...
  • Page 30 EZ-100 Porta-Check Manual 【TIPS】  To ensure accurate measurement, the sample volume in the container should be sufficient to ensure 5)如果有必要, 可以按"存贮"键保存测量结果, 并显示" "字样。 SAVE that the junction of the measuring and the reference electrode is completely immersed in the sample. ...

  • Page 31: Maintenance And Troubleshooting

    EZ-100 Porta-Check Manual 6 Maintenance and Troubleshooting 6.1 Maintenance The correct use and maintenance of the meter can ensure the normal and reliable operation of the meter, especially the pH meter, which has a high input impedance and is easily damaged by static electricity and other electromagnetic interference;...
  • Page 32 EZ-100 Porta-Check Manual Table 6-1 Lithium battery power indicator status Meter status Charging state Switch-on and off key indicator status Meter shutdown Not charging Close Turn on the meter Not charging Constant light The power is displayed in the form of 1 Turn on the meter Charging to 4 consecutive flashes.

  • Page 33: Electrode Usage And Maintenance

    EZ-100 Porta-Check Manual 6.2 Electrode usage and maintenance Before using the electrode, you should read the electrode manual carefully to know the type, structure and application scope of the electrode. For composite pH electrodes with plastic shells, the following points should generally be noted: ...

  • Page 34: Troubleshooting

    EZ-100 Porta-Check Manual 4% HF (hydrofluoric acid) for (3-5) s, wash with distilled water, and then soak in 0.1 mol/L hydrochloric acid solution to rejuvenate.  Clean pH Electrode: If the measured solution contains substances that are easy to contaminate the sensitive bulb or block the liquid junction and make the electrode passivated, the slope will decrease and the display reading will be inaccurate.

  • Page 35: Technical Support

    EZ-100 Porta-Check Manual 7 Technical Support Accessories Please refer to the accessories table for purchasing recommendations. Table 7-1 Meter accessories Name Description Conventional sample measurement E-301-QC pH three composite electrode pH standard buffer reagent pH4.00, 7.00, 10.01 DC5V, meet lithium battery charging Power charger Table 7-2 Optional electrodes Model Name...
  • Page 36 EZ-100 Porta-Check Manual Model Name Electrode plug Description Suitable for low 962121 conductivity samples with pH composite electrode (Low S7-BNC(Q9) conductivity above conductivity ) 100us/cm 962241 Suitable for solid and pH Combination Electrode (Blade BNC(Q9) semi-solid piercing samples spear) 962242 Suitable for surface or S7-BNC(Q9) pH Composite Electrode (Flat )

  • Page 37: Appendix

    EZ-100 Porta-Check Manual 8 Appendix Appendix 1 pH-Temperature Relationship Table of pH Standard Solutions Temperature(°C) 1.68 4.01 7.00 10.01 1.67 4.00 7.09 10.25 1.67 4.00 7.06 10.18 1.67 4.00 7.04 10.12 1.68 4.00 7.02 10.06 1.68 4.01 7.00 10.01 1.68 4.01 6.99 9.97...

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