Портативный многопараметрический анализатор качества воды | Измеритель


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Трекер стоимости

Месяц Минимальная цена Макс. стоимость
Sep-19-2025 0.37 $* 0.50 $*
Aug-19-2025 0.74 $* 0.17 $*
Jul-19-2025 0.86 $* 0.84 $*
Jun-19-2025 0.35 $* 0.34 $*
May-19-2025 0.41 $* 0.79 $*
Apr-19-2025 0.7 $* 0.36 $*
Mar-19-2025 0.24 $* 0.31 $*
Feb-19-2025 0.52 $* 0.59 $*
Jan-19-2025 0.61 $* 0.20 $*

Характеристики



Product Description


 


904P Portable Conductivity/Dissolved Oxygen Meter


Multiparameter portable Conductivity/Dissolved Oxygen meter contains 5 measurement modes, the meter is suitable for measuring the conductivity, TDS, salinity, resistivity and DO.


 


 





Features


 Conductivity/TDS/Salinity/Resistivity Modes:
• Multiparameter portable conductivity/dissolved oxygen meter is equipped with a backlit LCD.
• 1 to 5 points push-button calibration, automatically recognizes the calibration solutions.
• Selectable cell constant (K=0.1/1/10), reference temperature (20/25°C), TDS factor, linear
  and pure water compensations, seawater and practical salinity measurement modes.


904P3.jpg


 


Dissolved Oxygen Mode:
• 1 or 2 points calibration using the air-saturated water or zero oxygen solution.
• Salinity and barometric pressure compensations ensure the reliable DO measurements.

Other Features:
• Automatic Temperature Compensation provides accurate reading over the entire range.
• Calibration Due Alarm prompts user to calibrate the meter regularly.
• Stability indicator shows when a measurement is recognized as stable.
• Auto-Hold feature senses and locks the measurement endpoint.
• Calibration report provides the details for checking the electrode performance.


 


904P4.jpg


 


• Battery indicator shows the remaining battery capacity.
• Auto-Power Off effectively conserves battery life.
• Setup menu allows setting the 13 parameters, including the number of calibration points,
  stability criteria, temperature unit, date and time, etc.
• Reset feature automatically resumes all settings back to factory default options.
• Expanded memory stores and recalls up to 500 data sets.
• Stored readings can be transferred into the computer by USB communication interface.
• Multi-mode power scheme (batteries, power adapter and USB port) ensures that use the
  meter smoothly.


 


 


 





Specifications


 



















































































































































































































Model


 

904P



   Conductivity


  

   Range


 

0.01~20.00, 200.0, 2000µS/cm, 20.00, 200.0mS/cm



   Accuracy


 

±0.5% F.S



   Resolution


 

0.001, 0.01, 0.1, 1



   Calibration Points


 

1 to 5 points



   Calibration Solutions


 

10µS/cm, 84µS/cm,1413µS/cm,12.88mS/cm,111.8mS/cm



   Temperature Coefficient


 

0.0~10.0%/°C



   Compensation Modes


 

Linear or Pure water



   Cell Constant


 

K=0.1, 1, 10 or Custom



   Reference Temperature


 

20°C or 25°C



   TDS


  

   Range


 

0~10.00, 100.0, 1000ppm, 10.00, 100.0ppt (Max. 200ppt)



   Accuracy


 

±1% F.S



   Resolution


 

0.01, 0.1, 1



   TDS Factor


 

0.1~1.0 (Default 0.5)



   Salinity


  

   Range


 

0.00~80.00ppt, 0.00~42.00psu



   Accuracy


 

±1% F.S



   Resolution


 

0.01



   Measurement Modes


 

Practical salinity (psu) or Natural seawater (ppt)



   Resistivity


  

   Range


 

0.00~20.00MΩ



   Accuracy


 

±1% F.S



   Resolution


 

0.01, 0.1, 1



   Dissolved Oxygen


  

   DO Range


 

0.00~20.00mg/L



   Accuracy


 

±0.2mg/L



   Resolution


 

0.1, 0.01mg/L, selectable



   % Saturation of Oxygen


 

0.0~200.0%



   Accuracy


 

±2.0%



   Resolution


 

0.1, 1%



   Calibration Points


 

1 or 2 points



   Pressure Correction


 

60.0~112.5kPa, 450~850mmHg



   Salinity Correction


 

0~50g/L



   Temperature


  

   Range


 

0~105°C, 32~221°F



   Accuracy


 

±0.5°C



   Resolution


 

0.1°C, 0.1°F



   Calibration Points


 

1 point



   Calibration Range


 

Measured value ±10°C



 


 




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