Hanna Instruments HI98129 pH, TDS, EC, and Temp Combo Meter

Fast, efficient, accurate, portable, and it even floats!



Part Number: HI98129
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MSRP: $245.99
Price: $175.71 
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  as of Aug 20, 2018

Hanna HI98129 TDS, PH, EC, and Temp Meter


  • High accuracy pH, EC/TDS and temperature measurements
  • Waterproof combo has a large easy-to-read, dual-level LCD and automatically shuts-off
  • EC/TDS and pH readings automatically compensate for the effects of temperature (ATC)
  • Tester has a greatly extended life:
    • Replaceable pH electrode cartridge with an extendable cloth junction.
    • EC/TDS graphite electrode resists contamination by salts/other substances.
  • User can select the EC/TDS conversion factor and the temperature compensation coefficient (ß)

Hanna HI98129 Meter Specifications


  • Range:
    • pH: 0.00 to 14.00 pH
    • EC: 0 to 3999 µS/cm
    • TDS: 0 to 2000 ppm
    • Temp: 0.0 to 60.0°C / 32 to 140.0°F
  • Resolution:
    • pH: 0.01 pH
    • EC: 1 µS/cm
    • TDS: 1 ppm
    • Temp: 0.1°C / 0.1°F
  • Accuracy:
    • pH: ±0.05 pH
    • EC/TDS: ±2% F.S.
    • Temp: ±0.5°C / ±1°F
  • Temperature compensation: pH: automatic; EC/TDS: automatic with ß adjustable from 0.0 to 2.4% / °C
  • Calibration:
    • pH: automatic, 1 or 2 points with 2 sets of memorized buffers
      (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18)
    • EC/TDS: automatic, 1 point
  • TDS Conversion Factor: adjustable from 0.45 to 1.00
  • pH Electrode: HI 73127 (replaceable; included)
  • Environment: 0 to 50°C (32 to 122°F); RH max 100%
  • Battery type / life: 4 x 1.5V / approx. 100 hrs of continuous use; auto-off after 8 min. of non-use
  • Dimensions: 163 x 40 x 26 mm (6.4 x 1.6 x 1.0")
  • Weight: 100 g (3.5 oz.)

Hanna Instruments HI98129 Literature
Hanna Instruments HI98129 Manual



How to measure TDS percent rejection using Hanna TDS Meter :

TDS Meter Calculation Formula



Example:
Tap TDS reading = 260 ppm
RO TDS reading = 20 ppm
Rejection = [(260 - 20) / 260] x 100
= [240/260] x 100
≈(.923) x 100
= 92.3%


Certifications
Dimensions
6.4 x 1.6 x 1.0 "
General
3.5 oz.
1 Year
USA
±0.05 pH / ±2% F.S EC/TDS / Temp: ±0.5°C / ±1°F %
4 x 1.5V Button Cell Battery
Materials
Operating Conditions
0.0 to 60.0°C / 32 to 140.0°F
EC: 0 to 3999 µS/cm; TDS: 0 to 2000 ppm
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