Three Range Portable TDS Meter - HI8734

SKU: HI8734

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The HI8734 is a rugged, portable TDS meter designed for the water conditioning industry, particularly in the softening, demineralization, reverse osmosis, and drinking water applicaitons. It can also be used for a wide variety of environmental conditions. TDS readings are adjusted with manual temperature compensation, assuring users of consistent and accurate measurements of total dissolved solids.

  • Four-ring probe
  • measurement ranges from 0.0 mg/L to 19.99 g/L with a ±1% FS accuracy
  • Manual Temperature Compensation


Manually calibrated at one point in a standard TDS solution

Three dedicated-range buttons to easily change range

Meter communicates if reading is out of range and a new range should be selected

The HI8734 has a set TDS factor of 0.5, meaning that 1 μS/cm is equal to 0.5 mg/L (ppm) of TDS.

The temperature compensation coefficient, β, is set at 2%/°C, correcting the reading 2% for each degree Celsius change in the sample.

The HI76301D four-ring probe that is supplied with the meter allows for a wide range of measurements with a single sensor

The probe comes with a protective PVC sleeve that assures durability when taking measurements outdoors.

More Information
SKU HI8734
Product Name Three Range Portable TDS Meter - HI8734
Quote Required No
TDS Range 0.0 to 199.9 mg/L (ppm); 0 to 1999 mg/L (ppm); 0.00 to 19.99 g/L (ppt)
TDS Resolution 0.1 mg/L (ppm); 1 mg/L (ppm); 0.01 g/L (ppt)
TDS Accuracy ±1% FS (excluding probe error)
TDS Calibration manual, one-point through TDS knob
EC/TDS Temperature Compensation manual from 0 to 50°C (32 to 122°F) with β = 2%/°C
EC to TDS Conversion Factor 0.5
EC/TDS Probe HI76301D four ring conductivity probe with DIN connector and 1 m (3.3’) cable (included)
Battery Type/Life 9V / approximately 100 hours of continuous use
Environment 0 to 50°C (32 to 122°F); RH max 95%
Dimensions 145 x 80 x 36 mm (5.7 x 3.1 x 1.4”)
Weight 230 g (8.1 oz)
Ordering Information HI8734 is supplied with HI76301D conductivity probe, HI70032 1382 mg/L (ppm) calibration solution sachet, battery, and instruction manual.
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