Monday, September 30, 2013

MA887 Digital Seawater Refractometer

MA887 Digital Seawater Refractometer

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Price: $139.99 $106.50   Updated Price for MA887 Digital Seawater Refractometer now
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Product Description

The MA887 is an optical instrument that employs the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water, or brackish intermediates. The digital refractometer eliminates the uncertainty associated with mechanical refractometers and is easily portable for ship, shore, and home use.

The MA887 Digital Refractometer is an optical device that is simple and quick to use. Samples are measured after a simple user calibration with distilled or deionized water. Within seconds, the refractive index and temperature are measured and converted into one of three popular measurement units: Practical Salinity Units (PSU), Salinity in parts per thousand (ppt), or Specific Gravity (S.G.). All conversion algorithms are based upon respected scientific publications using the physical properties of seawater (not sodium chloride). The temperature is also displayed on the large dual level display along with helpful message codes.

Key Features Include:
  • IP65 Waterproof Protection
  • Automatic Temperature Compensation (ATC)
  • Battery operation with low power indicator
  • Auto Shut-off after 3 minutes of non-use


MA887 Digital Refractometer Specifications

Range - 0 to 50 PSU / 0 to 150 ppt / 1.000 to 1.114 S.G. (20/20) / 0 to 80 degrees Celsius
Resolution - 1 PSU / 1 ppt / 0.001 S.G. (20/20) / 0.1 degrees Celsius
Accuracy - ± 2 PSU / ± 2 ppt / ± 0.002 S.G. (20/20) / ± 0.3 degrees Celsius
Light Source - Yellow LED
Measurement Time - Approximately 1.5 seconds
Minimum Sample Volume - 100µ (completely cover prism)
Sample Cell - SS ring and flint glass prism
Temperature Compensation - Automatic between 10 and 40 degrees Celsius
Battery - 1 x 9V AA (included)
Battery Life - 5000 readings
Auto Shut-Off - after 3 minutes of non-use

MA887 Digital Seawater Refractometer Review

I have a 125 reef tank and this makes it very easy to test the salinity!! I will never go back to the old way of testing.

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1 comment:


  1. AFAB Enterprises is founded on the understanding that many manufacturing and processing facilities need accurate,
    reliable and repeatable results from refractometer equipment - but they don't necessarily have to spend tens of thousands
    to get those results. Through a series of common sense approaches to the design and engineering of our products,
    AFAB offers its customers the best of both worlds; dependability and affordability. Yes, anyone can probably spend more
    on refractometer equipment, but for most of the companies that use this equipment it is costly overkill.
    digital refractometer

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