1. Performance characteristics

1.1 Ion measurement: There are ten commonly used ions to choose from, and other ions can also be customized;
1.2 pHAutomatic calibration from 1 to 5 o'clock, conductivity from 1 to 4 o'clock, and ion from 2 to 5 o'clock; There are calibration guidelines and automatic inspection functions;

1.3 pHautomatic/Manual（0～100.0）℃Temperature compensation; Ionic automatic/Manual（0～60.0）℃Temperature compensation; Conductivity（0～50.0）℃automatic/Manual temperature compensation system function;
1.4 Ionic units can be selected and switched by oneselfpX；mol/L；mg/Landppm；
1.5 Conductivity measurement mode for high-purity waterSelection of reference temperature★; Electrode constant selection; Selection of temperature compensation coefficient;
1.6 Dissolved oxygen（0～45）℃Automatic temperature compensation; （0～45）pptAutomatic salinity compensation; （80～105）kPaManual air pressure compensation;

1.7 Equipped with a dedicated electrode calibration kitAutomatic calibration of water saturated air in the calibration kit; Electrode polarization only requires(3～5)minThe electrode adopts a combined diaphragm cap;
1.8 Stable data display mode;
1.9 comply withGLPData management methods; data storage1000Group (manual and automatic storage);USBCommunication interface;
1.10 pHCan be used in modeCH、USA、NISTThree series in total15Calibration of standard solutions and customized standard solutions; Can be used in conductivity modeCH、USATwo series in total8Calibration of standard solutions and customized standard solutions;
1.11 high purity waterpHMeasurement mode and addition of ammonia pure waterpHMeasurement mode;E_HRedox potential measurement mode;
1.12 Temperature units can be selected℃or℉；
1.13 Factory settings can be restored；
1.14 90×68mmlarge screenLCDDisplay, white backlight, with time display;
1.15 Protection level meetsIP54Dustproof and splash proof rating, the instrument socket is sealed with a rubber cap for protection.
1.16 Configure dissolved oxygen electrode with salinity compensationIntelligent mixer.

2Standard configuration

2.1 pH/conductivity/ion concentration/Dissolved oxygen analyzer host

2.2 High quality plastic shell three in onepHElectrode, high-precision glasspHComposite electrode, high-precision glass conductive electrode（K=1，ATC）Dissolved oxygen electrode, temperature electrode, and dual liquid reference electrode

2.3 Intelligent mixer

2.4 Universal electrode holder

2.5 Dissolved oxygen electrode diaphragm cap

2.6 Dissolved oxygen electrode solution

2.7 pHStandard buffer solution and conductivity correction solution

2.8 USBcommunication cable

2.9 Communication software CD

2.10 9Vpower adapter

1Main technical parameters

1.1measurement range

Ionic concentration:（0.00～14.00）pX

pH：(-2.000～19.999)pH

mV：（±1999.9）mV

Conductivity:0.00μS/cm～2000mS/cmDivided into five sections:（0.00～20.00）μS/cm；（20.0～200.0）μS/cm；（200～2000）μS/cm；（2.00～20.00）mS/cm；（20.0～200.0）mS/cm；（200～2000）mS/cm

resistivity：（0～100）MΩ•cm

TDS：（0～100）g/L

Salinity:（0～100）ppt

dissolved oxygen:（0～20.00）mg/L（ppm）

Dissolved oxygen saturation:（0.0～200.0）%

Temperature:（-10～100）℃

1.2 resolution

Ionic concentration:0.01pX,0.01mol/L，0.01mg/L，0.01ppm

pH：0.001/0.01/0.1pH

mV：0.1 mV

conductivity：0.01/0.1/1μS/cm；0.01/0.1/1mS/cm

dissolved oxygen: 0.01/0.1 mg/L

Dissolved oxygen saturation:0.1/1%

Temperature:0.1℃

1.3 Basic error

Ionic concentration: ±0.01pX(One introduction) ±0.02pX(Second introduction)

pH：±0.002 pH

mV：±0.03%FS

Conductivity: ±0.5%FS

dissolved oxygen: ±0.30mg/L

Temperature: ±0.4℃

1.4 response time: 30s（25℃，90%Response)

1.5 Residual current:0.10mg/L