TDS/pH/Ion/ORP/DO Water Quality Tester
Instrumentfunctions:
Ø GDS-708 Water Quality Tester has5.7inchlargetouchscreenandEnglishoperationsystemforeasyuse.
ØItcanmeasurePH,PX,OPR,Ionconcentration,conductivity,resistivity,TDS,salinity,dissolvedoxygen,saturationandtemperatureatthesametime.
ØItprovidemanyionmodessuchasH+,Ag+,Na+,K+,NH4+,Cl-,F-,NO3-,BF4-,CN-,CU2+,Pb2+,Ca2+.Theuserscandefineionmodesbythemselvesifchoosingcorrespondingionsensors.
ØItfollowsGLPpracticeandcanstore2200setsofmeasuringdata.
ØMeasuringdatacanbeviewed,printedanddeleted.Theusercanviewcurrentmeasuringdataandthelastcalibration;
ØItprovideszerooxygenandfullscalecalibration;
ØIthasRS-232andUSBports.Ifmatchedwithspecificdatacollectingsoftware,itcanbeconnectedwithPC.
ØItprovidesthreemeasuringmodes:continuousmeasuring,timingmeasuringandbalancemeasuringmode.
Specifications:
1.Measuringrange:
pH/pX:(-2.000~19.999)pH/pX;
ORP:(-1999.99~1999.99)mV;
Conductivity:0.000uS/cm~199.9mS/cm;
Resistivity:0.00Ω.cm~20.00MΩ.cm
TDS:0.000mg/L~19.99g/L
Salinity:(0.0~8.00)%;
Dissolvedoxygenconcentration:(0.00~19.99)mg/L
Dissolvedoxygensaturation:(0.0~199.9)%;
Ion:(0~19990),unit:ug/L,mg/L,mol/L,mmol/L;
Temperature:(-5.0~135.0)C;
2.Resolution:
pH/pX:0.01,0.001pH;
ORP:0.1/0.01mV;
Conductivity:0.001uS/cm;
Resistivity:0.01Ω.cm;
TDS:0.001mg/L
Salinity:0.1%;
Dissolvedoxygen:0.01mg/L
Dissolvedoxygensaturation:0.1%;
Temperature:0.1C;
3.Accuracy:
pH/pX:+/-0.002pX+/-1bit;
ORP:+/-0.03%FS;
Conductivity:+/-0.5%FS;
Resistivity:+/-0.5%FS;
TDS:+/-0.5%FS;
Salinity:+/-0.1%;
Ionconcentration:+/-0.5%+/-1bit;
Dissolvedoxygen:+/-0.50mg/L
Dissolvedoxygensaturation:+/-10.0%;
Temperature:+/-0.5+/-1digit;
4.Dissolvedoxygenresponsetime<45s(90%respondat20°C);
5.Automatictemperaturerange:
pH:(0.0~100.0)°C;
Conductivity:(0.0~100.0)°C;
Dissolvedoxygen:(0.0~40.0)°C;
6.Power:DC(9VDC,800mA,inside-positiveandoutside-negative);
7.Dimension(mm):250*195*100;
8.Netweight:2kg;
9.Packingsize:370*310*340mm;Grossweight:5kg.
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