1Performance characteristics

1.1 pHAutomatic calibration from one to five 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;
1.3 High purity waterpHMeasurement mode and addition of ammonia pure waterpHMeasurement mode;
1.4 toolE_HRedox potential measurement mode;
1.5 （0～45）℃ automatic temperature compensation;
1.6 （0～45）pptAutomatic salinity compensation;
1.7 （80～105）kPaAutomatic air pressure compensation;
1.8 Equipped with a dedicated electrode calibration kit,Automatic calibration of saturated water and air in the calibration kit;Electrode polarization only requires(3～5)minThe electrode adopts a combined diaphragm cap;
1.9 Equipped with salinity compensated dissolved oxygen electrode, electrode calibration kit, and intelligent stirrer;
1.10 Equipped with stable endpoint display and automatic locking display mode, optimized reading accuracy and response time;
1.11 90×68mmlarge screenLCDLarge font display, white backlight, with time display, clear and easy to operate;
1.12 （0～100.0）℃ automatic/Manual temperature compensation system function;
1.13 comply withGLPData management methods, data storage1000Group (manual and automatic storage);
1.14 toolUSBCommunication interface;
1.15 Temperature unit selection (℃ and ℉);
1.16 The instrument can be reset to factory settings with just one click;
1.17 Configure high-quality plastic shell three in onepHElectrodes and high-precision glasspHComposite electrode;
1.18 comply withIP54Dustproof and splash proof rating, the instrument socket is sealed with a rubber cap for protection.

2Standard configuration

2.1 pH/Dissolved oxygen analyzer host

2.2 High quality plastic shell three in onepHElectrode, high-precision glasspHComposite electrode, temperature electrode, and dissolved oxygen 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

2.8 USBcommunication cable

2.9 Communication software CD

2.10 9Vpower adapter

1Main technical parameters

1.1measurement range

pH: (-2.000～19.999)pH

mV：（±1999.9）mV

dissolved oxygen:（0～20.00）mg/L（ppm）

Dissolved oxygen saturation:（0.0～200.0）%

Temperature:（-10～100）℃

1.2 resolution

pH：0.001/0.01/0.1 pH

mV：0.1 mV

dissolved oxygen:0.01/0.1 mg/L

Dissolved oxygen saturation:0.1/1%

Temperature:0.1℃

1.3 Basic error

pH：±0.002 pH

mV：±0.03%FS

dissolved oxygen:±0.30mg/L

Temperature: ±0.4℃

1.4response time:30s（25℃，90%Response)

1.5Residual current:0.10mg/L