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Turtle Tough TT-JYC-pH Yokogawa Compatible pH Sensor

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Acid/Fluoride, Slurry and Sulphide Resistant

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Product Description

TT-JYC-pH Yokogawa pH Sensor

SKU: TT-JYC-pH-2201

The TT-JYC-pH Yokogawa pH Sensor is an analogue pH sensor that is compatible with all Yokogawa Analysers that have an analogue input (even digital models). For more than 20 years our OEM replacement sensors have provided our customers with superior performance over the original product in virtually every aspect.  The chemical and physical resistance provides a superior service life of up to 10 times that of the OEM product. In nearly all cases our customers report less drift and significantly less maintenance and the reason they keep using Turtle Tough... a significantly lower cost of ownership.

The high capacity solid state KYNAR reference junction provides superior chemical resistance to sulphides and other dissolved gasses. The standard sensor utilises a double junction however a triple junction is available as a special order. The sensor is built with PT1000 integrated temperature compensation element and integral solution ground so that it interfaces seamlessly with the Yokogawa Analysers.

Our toughest Turtle Tough pH glasses have higher impedance which can be rejected prematurely by the Yokogawa Analyser thinking that it is "old". By utilising a special glass formulation we have made a low impedance glass that falls within the impedance input limits for the Yokogawa Analysers.  While we are limited in design by the electronics of the analyser, our OEM replacement sensor is guaranteed to outlast the original many times over.

For extreme applications that require our extreme slurry/abrasion resistant, zinc resistant, or High HF resistant glass and different analyser will need to be considered.

Key Features

  • Yokogawa compatible pH Sensor
  • Outlasts OEM by up to 10 times
  • 6m cable
  • RYTON Body, 3/4"x3/4” MNPT
  • -5°C to 105°C
  • Triple Junction (optional)
  • Coat resistant materials reduce fouling
  • Acid/Fluoride Resistant
  • Ammonia, Chlorine and Sulphide Gas Resistant
  • High Capacity KYNAR Reference
  • Solution Ground
  • Special glass to suit Yokogawa

Additional Information

Additional Information




General Specifications


Yokogawa Compatible pH Sensor

Part Number


pH Range

0 to 14 pH

Temperature Range

-5 to 105°C


6.9 to 690 kPa absolute (1 to 100 psig)

Body Type

RYTON (Poly-Phenylene-Sulfone) with ¾”  MNPT Front & Back End

Junction Material

KYNAR (Poly-Vinylidene-Fluoride)


216mm Length, Maximum Diameter 26.7mm

Cable Length


Temperature Compensation



Not Fitted


Immersible, Submersible if threaded on sealed immersion rod with sufficient sealing tape


Hard Wired Tinned Leads for Sensor & TC

Special Features

Acid/Fluoride, Slurry and Sulphide Resistant, Solution Ground

pH Sensor Specifications

Measuring Glass Type

Low Impedance Z Glass

Glass Dimensions

7.8mm (0.310”) Diameter

Initial Impedance

< 400 M Ohms @ 25°C

Sodium Ion Error

< 0.15 pH in Na⁺ solutions at pH 14.00

Acidic Errors

< 0.05 pH in HCl solutions at 0.00 pH

Reference System Specifications


Double Junction

Reference Half Cell

Ag/AgCl, Saturated KCl

Primary Junction

Porous Ceramic, Saturated KCl in Cross-linked polymer, interfaced to Secondary Junction

Secondary 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

Any process media containing free sulfide species such as hydrogen sulfide gas (H2S), hydrogen sulfide (HS-) or sulfide ions (S2-). 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

Compatible with all Yokogawa/JYC analogue analysers


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.


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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