Analytical

T-721 Precise pH-DO Meter

Precise measurements of pH/DO in fields of biotechnology, aquaculture, power plant and environmental protection, and also more widely used in areas of education and scientific research.

Features:

●7 inch color capacitive screen with high resolution (1024*600) and sensitivity, which can show more parameters, more intuitive and simpler to read data.

●Auto calibration, auto temperature compensation, data storage, USB data export, clock, wireless printing, function setup, smart self-diagnosis and other intelligent functions.

●English and Chinese operating system, humanized design with adjustable screen brightness.

●Auto recognition of standard pH buffer solutions and there are three kinds of standard buffers for option: USA series, NIST series and China series.

●Built-in big memory can store 1000 sets of test data which can be saved and transferred to USB and opened with Excel, very easy and convenient for edit.

●DO mode has functions of ATC, auto salinity compensation and auto pressure compensation.

●New structure polarographic DO electrode can measure temperature, salinity and dissolved oxygen simultaneously, equipped with special DO electrode calibration sleeve, only need 3~5 min for polarization.

●Combined diaphragm cap makes it extremely convenient to replace the sensitive membrane just by screwing the new cap to the electrode.

●DO measurement is polarographic and suggested to be used with our magnetic stirrer or other appropriate models chosen by customers.

●With standard Bluetooth module and support wireless Bluetooth printing to make operations much easier for users. Optional data transmission to PC and cell phone via Bluetooth.

●IP54 dustproof and waterproof housing.

 

Specifications:

 

pH                            :Measuring range                            :(-1.99 ~ 19.99) pH

                                  Resolution                                      :0.1/0.01 pH

                                  Accuracy                                        :±0.02 pH

                                  Input current                                  :≤1×10-12 A

                                  Input impedance                            :≥1×1012 Ω

                                  Stability                                          :±0.01pH/3h

                                  Temp Compensation range           :(0 ~ 100)℃ (auto or manual)

 

mV                            :Measuring range(mV/ORP/EH)    :-1999.9mV ~ 0 ~ 1999.9mV

                                   Resolution                                    :1mV

                                   Accuracy                                      :±0.1% FS

 

DO                            :Measuring range                          :(0 ~ 20.00) mg/L(ppm)  (0 ~ 200.0)%

                                   Resolution                                   : 0.1/0.01 mg/L(ppm)    1/0.1%

                                   Accuracy                                      :Electrode: ±0.10 mg/L

                                                                                         Instrument: ±0.40 mg/L

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

                                   Residual current                           :≤0.1 mg/L

                                   Temp compensation range           :(0 ~ 100)℃ (automatic)

                                   Salinity compensation range        :(0 ~ 45) ppt (automatic)

                                   Air pressure compensation           :(80 ~ 105) kPa (automatic)

                                   Automatic calibration                     :Air saturated by water, water saturated by air

                                   Electrode type                               :Polarographic

 

Temperature              :Measuring range                           :-10℃~ 110℃

                                   Resolution                                     :0.1℃

                                    Accuracy                                       :5~ 60℃: ±0.4℃  Others: ±0.8℃

 

Other Parameters      :Data storage                                 :1000 groups

                                    Storage contents                          :Measurement series number, measuring value, temperature, ATC or MTC state, measuring date and time

                                    Power                                           :DC12V/1A

                                    Communication connectors          :Wireless Bluetooth, USB

                                    Dimensions & Weight                   :240 × 170 × 70mm/600g

 

Working Conditions    :Ambient temperature                    :5 ~ 35 ℃

                                    Ambient humidity                          :≤85%

                                    IP grade                                        :IP54 

 

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