1. Performance characteristics

1.1 pHAutomatic calibration from 1 to 5 o'clock, conductivity from 1 to 4 o'clock, with calibration guidance and automatic inspection function;

1.2 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;

1.3 High purity waterpHMeasurement mode and addition of ammonia pure waterpHMeasurement mode;

1.4 toolE_HRedox potential measurement mode;

1.5 High purity water conductivity measurement mode; Selection of reference temperature;

1.6 Equipped with stable endpoint display and automatic locking display mode, optimized reading accuracy and response time;

1.7 90×68mmlarge screenLCDLarge font display, white backlight, with time display, clear and easy to operate;

1.8 （0～50.0）℃ automatic/Manual temperature compensation system function; Electrode constant selection; Selection of temperature compensation coefficient;

1.9 comply withGLPData management methods, data storage1000Group (manual and automatic storage); toolUSBCommunication interface;

1.10 Temperature unit selection (℃ and ℉);

1.11 The instrument can be reset to factory settings with just one click;

1.12 Configure high-quality plastic shell three in onepHElectrodes and high-precision glasspHComposite electrode; Equipped with temperature compensated conductive electrodes, one electrode for wide range testing;

1.13 comply withIP54Dustproof and splash proof rating, the instrument socket is sealed with a rubber cap for protection.

2Standard configuration

2.1 pH/Conductivity meter host

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

2.3 Universal electrode holder

2.4 pHStandard buffer solution and conductivity correction solution

2.5 USBcommunication cable

2.6 Communication software CD

2.7 9Vpower adapter

1Main technical parameters

1.1measurement range

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

Temperature:（-10～100）℃

1.2 resolution

pH：0.001/0.01/0.1 pH

mV：0.1 mV

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

Temperature:0.1℃

1.3 Basic error

pH：±0.002 pH

mV：±0.03%FS

Conductivity: ±0.5%FS

Temperature: ±0.4℃