Durafet pH Sensor
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Honeywell’s Durafet pH electrode is an industrial, non-glass, unbreakable, Ion Sensitive Field Effect Transistor (ISFET)-based pH sensor. The industry-proven pH electrode, with over 14 years of application experience, provides fast, accurate and dependable pH measurement in the most demanding applications.​​

​Durafet pH electrodes offer a reliable combination of measuring and reference electrodes and an integral automatic temperature compensator in a one-piece construction and are suited for varying pH and temperature ranges.

Housed in a chemically resistant Ryton body, these electrodes serve the need of a variety of industrial or sanitary applications, including neutralization and reagent addition control. A sanitary Durafet III design is also available for food and dairy applications.

Durafet III electrodes are designed with a rugged waterproof Vario Pin connector while Durafet II electrodes are available with a PC board connector. These electrodes are compatible with Honeywell’s entire instrumentation range including UDA2182, APT Series and DirectLine® sensor modules.  

Durafet pH electrodes comprise a rugged, non-glass pH sensor that resists breakage in normal usage and offers up to 10 times faster responses than glass. The ISFET-based, solid state pH sensor emits a stable, low impedance signal, eliminating the need for frequent calibrations. 

The electrodes are available in two basic designs:

  • ¾” NPT male threaded connections at the top and bottom for in-line or immersion installations
  • Durafet II 12-mm diameter electrode for use with various Honeywell installation mountings

All electrodes include a cable connector to enable easy and reliable electrode replacement without twisting of cables. The electrodes include a reference junction frit filled with KCI gel that is easily replaceable. This extends the electrode’s lifetime and ensures hassle-free maintenance.

Honeywell’s Durafet pH electrodes offer an accurate, cost-effective and stable solution to pH measurement. The ISFET-based, solid state pH sensor minimizes the costs of electrode replacement, maintenance, reagent usage and calibration. Users benefit from better process control due to the sensor’s exceptionally fast response.

Documentation
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Electrode Mountings, HBD546 pH Sensor Durafet In-line or Submersible, 51-52-16-91-Issue 2Electrode Mountings, HBD546 pH Sensor Durafet In-line or Submersible, 51-52-16-91-Issue 259.34 KBModel Selection Guide1 Jan 2015
Electrode Mountings, HBD547 pH Sensor Durafet w/ Ball Valve Assemblies, 51-52-16-92-Issue 2Electrode Mountings, HBD547 pH Sensor Durafet w/ Ball Valve Assemblies, 51-52-16-92-Issue 2124.47 KBModel Selection Guide1 Jan 2015
Electrode Mountings, HBD551 Durafet Quick Change pH Sensor, 51-52-16-93-Issue 2Electrode Mountings, HBD551 Durafet Quick Change pH Sensor, 51-52-16-93-Issue 266.83 KBModel Selection Guide1 Jan 2015
Smart Sensors and Analytical Instruments BrochureAnalytical brochure - measurements for pH, ORP, conductivity/resistivity, dissolved oxygen and hydrogen purity.1.55 MBBrochure22 Apr 2014
More Stable pH Measurement with Durafet to Control CostsApplication note on Honeywell's Durafet electrodes that offer robust, fast and versatile pH measurement.202.99 KBApplication Note27 Mar 2014
More Efficient Monitoring for Flue Gas De-Sulfurization with Durafet pH sensorsApplication note on how Honeywell’s Durafet pH sensors drastically reduce pH measurement problems. 173.27 KBApplication Note16 Mar 2014
HBD546 pH Sensor Durafet In-line or Submersible, 51-52-16-91HBD546 pH Sensor Durafet In-line or Submersible, 51-52-16-9163.88 KBModel Selection Guide21 Nov 2013
HBD547 pH Sensor Durafet with Ball Valve Assemblies, 51-52-16-92HBD547 pH Sensor Durafet with Ball Valve Assemblies, 51-52-16-92123.87 KBModel Selection Guide21 Nov 2013
HBD551 Durafet Quick Change pH Sensor, 51-52-16-93HBD551 Durafet Quick Change pH Sensor, 51-52-16-9366.49 KBModel Selection Guide21 Nov 2013
DirectLine DL1000 Electrode Mountings, 51-52-16-72DirectLine DL1000 Electrode Mountings, 51-52-16-7267.17 KBModel Selection Guide29 Oct 2013
Public Support Documentation
4 Documents FoundItems per page :
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Durafet II industrial pH Electrode Series German Operator's Manual, 70-82-25-87-DEGerman - Durafet II industrial pH Electrode Series150 KBSupport Manual27 May 2009
Durafet III pH electrode with Vario Pin Connector German Operator's Manual, 70-82-25-115-GEGerman - Durafet III pH electrode with Vario Pin Connector419.15 KBSupport Manual27 May 2009
Durafet III pH electrode Operator's Manual, 70-82-25-115Durafet III pH electrode with Vario Pin Connector1.37 MBSupport Manual1 Jan 2004
Durafet II industrial pH Electrode Series Operator's Manual, 70-82-25-87Durafet II industrial pH Electrode Series93.46 KBSupport Manual1 Mar 2000

Training, maintenance and support are critical aspects to consider when choosing a technology partner. Honeywell offers world-class training through our Automation College, as well as comprehensive maintenance and support services designed to leverage your physical and intellectual assets and help you sustain and increase their value and performance over time.​

 
 
 
 
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