lab ph meter

Description

Technical Parameters: 2.1. pH: Measuring range (*1.**9 to *9.**9) pH Resolution 0.1/0.*1/0.**1 pH Accuracy Meter:±0.**2 pH, connect meter with electrode:±0.*1pH Input current ≤1×****2 A Input impendance ≥3×***2 Ω Stability ±0.**2 pH/3h Temp. compensation range (0 to **0) ℃ï&frac*4;ˆautomatic or manualï&frac*4;‰ 2.2. mV: Measuring range (mV/ORP/EH) ****9.9 mV to 0 to ***9.9mV Resolution 0.1mV Accuracy ±0.*3% FS 2.3. Ion Concentration: Measuring range 0.*0 to *4.*0pX Display unit pX, mol/L, mg/L, ppm Accuracy Meter:±0.5 % reading(monovalent), ±1.0 % reading (bivalent) Temp. compensation range 0 to *0 ℃ï&frac*4;ˆautomatic or manualï&frac*4;‰ 2.4. Conductivity Measuring range Conductivity: (0.*0 to *0.*0)Î&frac*4;S/cm (*0.0 to **0.0)Î&frac*4;S/cm (**0 to ***0)Î&frac*4;S/cm (2.*0 to *0.*0) mS/cm (*0.0 to **0.0) mS/cm (**0 to ***0) mS/cmï&frac*4;ˆK=*0ï&frac*4;‰ Resistivity:(0 to **0) MΩ•cm TDS: (0 to **0) g/L Salinity : (0 to **0) ppt Resolution 0.*1/0.1/1Î&frac*4;S/cm 0.*1/0.1/1 mS/cm Accuracy Meter:±0.5% FS, connect meter with electrode:±0.*0% FS Temp. compensation range (0 to *0) ℃ï&frac*4;ˆautomaticï&frac*4;‰ Electrode constant 0.1 / 0.5 / 1 / 5 / *0 / *0 /**0 cm*1 Reference temperature *5℃, *0℃and *8℃ 2.5. Dissolved Oxygen: Measuring range (0 to *0.*0) mg/L(ppm) (0 to **0.0) % Resolution 0.1/0.*1 mg/L(ppm) 1/0.1% Accuracy Meter:±0.*0 mg/L, connect meter with electrode:±0.*0 mg/L Response time ≤*0 s (*5℃, *0% response) Residual current ≤0.1 mg/L Temp. compensation range (0 to *5) ℃ï&frac*4;ˆautomaticï&frac*4;‰ Salinity compensation range (0 to *5) pptï&frac*4;ˆautomaticï&frac*4;‰ Air pressure compensation range (*0 to **5) kPaï&frac*4;ˆautomaticï&frac*4;‰ Automatic calibration Air saturated by water; water saturated by air Electrode type Polarogram type 2.6. Temperature: Measuring range **0℃to **0℃ Resolution 0.1℃ Accuracy 5 to *0℃ range: ±0.4℃ other range: ±0.8℃ 2.7. Other Technical Parameters: Data storage **0 groups Storage content Measuring value series number, measuring value, temperature, ATC or MTC state, measuring date and time Power DC9V/**0mA