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HI7609829 and HI7629829 multisensor probes are used for the measurements of pH, ORP, conductivity,
turbidity, dissolved oxygen, chloride, nitrate‑nitrogen, ammonium‑nitrogen and temperature. Each
probe can utilize 3 sensors. A description of each sensor follows.
HI7609829‑0 Combination pH sensor features a glass pH sensitive bulb
and a silver/silver chloride double junction reference with gelled electrolyte.
HI7609829‑1 Combination pH/ORP sensor features a glass sensitive
bulb for pH readings, a platinum sensor for redox measurements and a
silver/silver chloride double junction reference with gelled electrolyte.
Note: See Page 22 for pH preparation.
See Page 22 for ORP activation.
HI7609829‑2 Galvanic dissolved oxygen (D.O.) sensor. The thin gas permeable
membrane isolates the sensor elements from the testing solution but allows
oxygen to pass through. The oxygen that passes through the membrane is reduced
at the cathode and causes a current, from which the oxygen concentration is
determined. The D.O. sensor conforms to Standard Methods 4500‑OG, EPA 360.1.
Note: The D.O. sensor needs to be activated before installation.
See Page 22 for details.
HI7609829‑3 four‑ring electrode conductivity sensor. The sensor is immune
to polarization or surface coatings.
The HI7609829‑4 Combination EC/Turbidity sensor. It includes a four‑
ring electrode conductivity sensor and a turbidity sensor that conforms to
ISO 7027 standards in a single sensor body. The turbidity sensor uses an
optical technique to measure suspended particles in water.
Chapter 4 - PROBE INSTALLATION
SENSOR DESCRIPTIONS
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