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Turtle Tough TT-Zn-pH Zinc pH Sensor

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Acid/Fluoride, Slurry, Sulphide, Organic and Sodium/Metal Resistant

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Product Description

TT-Zn-pH Zinc pH Sensor

SKU: TT-Zn-pH-2102

The TT-Zn-pH Zinc pH Sensor has more than 10 years history of providing unparalleled performance in Zinc leaching processes.

Zinc is leached using sulphuric acid, which dissolves the zinc content and leaves the iron and lead precipitates undissolved. However, the process can be inefficient if there aren’t adequate process controls in place, and can lead to lower grade products. Sensors will often drift significantly, and there is constant attack on the pH glass elements from the dissolved zinc complexes. In conjunction with one of our major clients, we developed a pH glass element that resists attack from these zinc complexes, which both improves sensor lifetime and greatly reduced sensor drift.

Additional sulphide resistance has been added to all components and by increasing the physical strength of the body this sensor can also be used in in high velocity, high solid content slurries where other sensors will easily break. The improved accuracy and stability of this sensor has proved itself in improving zinc yields, while the increased sensor lifetime will reduce labour costs and total cost of ownership.

Due to the high resistance qualities of this sensor it is only available in our digital smart sensor technology.

Digital Smart Sensor Technology (DSST)

This sensor is available with our digital smart sensor technology. This plug and play sensor has a quick connect fitting, eliminating the need for hard wiring to the analyser. On-board sensor memory allows the storage of calibration dataanalyser configurations and sensor service history. This allows the sensor to be conveniently maintained and calibrated off-site or in the laboratory and pre-programmed with calibration data and analyser configurations.  This stored information automatically uploads to the analyser upon connection and eliminates the need for any interaction with the analyser, greatly simplifying the change-out of sensors. A service log stored on the sensors is ideal for maintenance and quality assurance records.

Key Feature

  • 6m cable
  • RADEL Body, 3/4x1” MNPT
  • -5°C to 105°C
  • Triple Junction
  • Zinc Ion Resistant
  • Slurry Resistant
  • Acid/Fluoride Resistant
  • AmmoniaChlorine & Sulphide Resistant
  • High Capacity KYNAR Reference
  • Digital smart sensor technology
    • No hard wiring - plug-n-play connectivity
    • Sensor stores calibration data, analyser configuration and sensor history
    • Hot-swap for quick sensor change-out
    • No interaction with analyser - sensor data auto uploads

Additional Information

Additional Information


General Specifications

Description pH Sensor for Zinc
Part Number TT-Zn-pH-2102
pH Range 0 to 11 pH
Temperature Range -5 to 105°C
Pressure 6.9 to 1035 kPa absolute (1 to 150 psig)
Body Type RADEL (Poly-Phenyl-Sulfone) with ¾” Front End – 1” Back End MNPT
Junction Material KYNAR (Poly-Vinylidene-Fluoride)
Dimensions 216mm Length, Maximum Diameter 33.3mm
Cable Length 6m
Temperature Compensation Pt1000
Preamplifier Not Fitted – Digital Sensor
Waterproofing Immersible, Submersible if threaded on sealed immersion rod with sufficient sealing tape
Connection Snap Connector NEMA 6P
Special Features Acid/Fluoride, Slurry, Sulphide, and Organic Resistant

pH Sensor Specifications

Measuring Glass Type Hemispherical, Green Glass (MUGG)
Glass Dimensions 9.0mm (0.354”) Diameter
Initial Impedance < 1,500 M Ohms @ 25°C
Sodium Ion Error < 0.05 pH in saturated Na⁺ brine solutions at pH 11.00
Acidic Errors < 0.05 pH in HCl solutions at 0.00 pH

Reference System Specifications

Type Triple Junction
Reference Half Cell Ag/AgCl, Saturated KCl

Primary & Secondary Junction

Porous Ceramic, Saturated KCl in Cross-linked polymer, interfaced to Tertiary Junction
Tertiary Junction Solid-State Non-Porous Cross-Linked Polymer embedded in Kynar Support Matrix holds excess KCl assuring saturation at all temps for stability & long sensor service life.

Application Specifications

Recommended Applications

Specifically designed for the Zinc industry.  Any process application where high levels of brine may be present. Saturated sodium resistant pH glass ensures accurate readings, stability and longevity in brines. Any measurement where aggressive chemical cleaning is needed to remove fouling or low-maintenance operation is required with minimal cleaning and re-calibration.

Analyser / Interface

Turtle Tough TT-MAD Digital Analyser
Storage Item should be kept at room temperature with closed protector cap, filled with storage solution in an upright position. Shelf life warranted for 12 months from the date of purchase.
Warranty 12 Month Conditional Warranty
Application Aquaculture, Chemical Processing , Food & Dairy, Laboratory, Pulp & Paper, Soil & Fertilisers, Water & Wastewater, Mining Slurries, High Cyanide, Titanium Dioxide, Solvent Extraction
Duty Cycle Moderate, Heavy, Ultra


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