Best reference service lifetime in process industry through proprietary, novel, non-porous, cross-linked, conductive polymer technology; Available in double junction (standard) or triple junction (optional “TJ”) configurations
Rugged industrial grade sensors can operate in a temperature range from -35 to 150 degrees Celsius at pressures up to 100 psig for quick-disconnect inline twist lock bayonet lock style installations
Base models for general purpose, high temperature resistant, ultra-high temperature resistant, slurry & viscous material resistant, acid/fluoride & HF resistant, pulp & paper resistant, aggressive dissolved gas & volatile organic solvent resistant, Oxidation Reduction Potential (ORP) and saturated sodium (brine) resistant.
Selected optional features include Ammonia gas resistant (“A”), Chlorine gas resistant (“C”), Wide Range -0.5 to +14.5 pH Media Resistant (“V”), Organic Media Resistant (“L”), Solvent Resistant (“TS”), 3-Wire TC (“M”), ACCU-TEMP Fast TC (“X”), Add Protective Tines 4 ea (“GR”), Add Protective Tines 2 ea (“GRO”), Shielded Preamplifier Cable (“BL”).
Available with most any integral temperature compensation element (Pt100 or Pt1000 Standard), Solution Ground Liquid Earth (316SS or Platinum), Dual pH/ORP All-In-One Configuration and Conventional or Differential Analog preamplifier to allow for interfacing with most any existing OEM transmitter.
Available end of cable terminations include tinned leads, BNC connector for pH sensors and ORP sensors without integral preamplifier.
Quick disconnect IP67 & NEMA 6P rated waterproof and corrosion resistant Q7M/Q7F snap connector option is available for pH sensors and ORP sensors with integral preamplifiers.
The PLC or HMI employed can either be customer supplied or else ASTI supplied as a part of a turn-key ready system ready for plug and play field commissioning right out of the box.
ASTI supplied HMI & PLC include options for advanced smart touchscreen controllers with full remote access suitable use in for Class I, Division II hazardous locations as well as Explosion-Proof controller suitable for use in hazardous Class I, Division I EX rated locations. Lower cost instrumentation options also exist for use in safe non-hazardous locations as well as blind installations if no local display is required.
Available in smart digital configurations for use with intelligent pH/ORP digital transmitters. Detailed information about this smart digital type configuration option can be found in the separate 3TX-HiQ digital pH/ORP measurement product webpage.
Quick-Disconnect Twist Lock Bayonet Style Receptacles allow for easy and fast insertion and removal from process line for calibration and cleaning. Available in KYNAR® (Poly-Vinylidene-Fluoride, PVDF) material of construction with stainless steel locking pins and KETASPIRE® (Poly-Ether-Ether-Ketone, PEEK) material of construction with Hastelloy C-276 locking pins.
Double O-ring design ensures secure seal during operation; Standard material of construction is Viton®-75, with CV75, Simriz® 485 and Kalrez® 4079 Optional
Back of sensor can be sealed with waterproofing option for use in immersion or submersible type applications as well as for inline use. For immersion and submersible installation it is recommended to add a protective tines option ("GR" or "GRO") as well as a Waterproofing Option for Fully Submersible Assemblies.
Each standard sensor selection and/or special customized sensor design are based upon a thorough review of the customer supplied application information by senior in-house chemists to ensure that the best possible choice of available pH sensor or ORP sensor model and options is made at the lowest possible price configuration which is suitable for the intended process measurement & installation scheme.
pH sensors & ORP sensors are manufactured with rugged RADEL® (Poly-Phenyl-Sulfone, PPSU), KETASPIRE® (Poly-Ether-Ether-Ketone, PEEK) or RYTON® (Poly-Phenylene-Sulfone, PPS) for the sensor body housing material of construction.
The solid state reference is highly resistant to dehydration and our thick wall glass is nearly impervious to cracking, even under high pressure conditions.
* 8X31 RADEL-KYNAR series pH sensor
* "GR" 4 each protective tines
* 1"MNPT PEEK twist lock receptacle
* 8741 PEEK-KYNAR series pH sensor
* Organic Solvent & Gas Resistant
* Optional Kalrez 4079 "O"-Rings
* 8X52 RYTON-HDPE series sensor
* "PtD" Dual pH/ORP All-In-One
* "GR" 4 each protective tines
* 8X51 RYTON-KYNAR series pH sensor
* "GR" 4 each protective tines
* Waterproofing "C" for Submersible Installation
* 8X52 RYTON-HDPE series pH sensor
* "GR" 4 each protective tines
* Wide Range MUGG pH glass
APPLICATIONS FOR IOTRON™ TWIST LOCK QUICK DISCONNECT
BUILT-TO-ORDER pH SENSORS & ORP SENSORS WITH EXTENSIVE CUSTOMIZATION OPTIONS
Measurement in strong acids or bases
Acid fluoride etching solutions
HF waste treatment systems
High Temperatures & Pressures
Examples include ammonium nitrate manufacturing, sugar extraction
Treatment of discharge from processes employing autoclaves
Pulp digesters for Kraft type mills
Bleaching lines for white paper mills
Abrasives and Viscous Processes
Extraction of precious metal ore with floatation tanks and concentrators
Gold extraction circuits with cyanide (batch or continuous)
Cyanide destruction with peroxide and/or sulfur dioxide
Dissolved Sulfides such as hydrogen sulfide gas (H2S), hydrogen sulfide (HS-) or sulfide ion (S2-)
Solvent extraction (SX) with kerosene and other long chain hydrocarbons
Measurement in most Volatile Organic Compounds (VOC) and most Organic Solvents
Biodiesel and ethanol fuels
Processes employing dissolved chlorine (Cl2), chlorine dioxide (ClO2), ammonia (NH3), sulfur dioxide (SO2) and nitric oxide (NO) and nitrous oxide (NO2) sometimes together referred to as (NOx) type gases
Municipal or industrial wastewater treatment
General Purpose pH monitoring or control for discharge compliance
Mining Slurries up to 50% solid & particulate content
Solids Content up to 12% consistency pulp
Fluorides up to 50,000 ppm and -0.5 pH
Support for measurement in most dissolved gases up to saturation
Examples include chlorine, chlorine dioxide, ammonia, sulfide gases
Cyanides up to 10,000 ppm
Almost All Organic Chemical Mixtures
Minimum ~1% aqueous content required to ensure stable readings
Clean in Place (CIP) processes with hot acid and hot base for food and beverage and pharmaceutical use
Sterilization with Peroxide (H2O2) and Ozone (O3)
Up to 600% Saturation Dissolved Oxygen (O2)
Fully submersible assembly that can be installed by thick reinforced vinyl tubing seal on cable
For best results the use of a suitable immersion tube, standpipe or guiderod is recommended to fix the installation location and to minimize mechanical related damage is recommended
Twist Lock pH Sensor Dimensional Drawing 8-1
Hemispherical pH Glass Element
80X1 Series General Purpose & Wide Range Resistant
81X1 & 82X1 Series High Temp & Ultra-High Temp Resistant
84X1 Series Acid, Fluoride & HF Resistant
86X1 Series hydrogen sulfide gas (H2S), hydrogen sulfide (HS-) or sulfide ion (S2-) Resistant
87X1 Series Aggressive Dissolved Gas & Volatile Organic Solvent Resistant
89X1 Series Saturated Sodium (Brine) Resistant
The twist lock sensor and receptacle installation assembly drawing linked below shows the 1"MNPT KYNAR® PVDF or KETASPIRE® PEEK receptacle interfaced with any suitable mating 1"MNPT Twist Lock Sensor such as the 8X51, 8X52, 8X31, 8X41 or 8XX0 sensor series.
Please carefully check the recommend maximum temperature and pressure rating of your twist lock sensor prior to installation. Note that the max pressure rating for each twist lock sensor may be dependent upon whether it is used with the KYNAR® PVDF or KETASPIRE® PEEK twist lock receptacle.
Please select and click on the pH sensor or ORP sensor specification sheet that you wish to download from the selection guide below. The sensor specifications are in PDF format and require the Adobe Acrobrat Reader (see link to the left to download this viewer if you do not already have it installed). Please contact factory if any documentation is missing from this page or else if you have any difficulty to view or open any of the files.
Twist Lock pH Sensors & ORP Sensors for Quick Disconnect Bayonet Style Inline Installations for use with 1" MNPT Twist Lock Receptacles
Description of pH/ORP Sensor Series KYNAR Junction for all 8XX1 Sensors
HDPE Junction for all 8XX2 Sensors
Sensor Body Housing RYTON®
Poly-Phenylene-Sulfone, PPS
Sensor Body Housing RYTON®
Poly-Phenylene-Sulfone, PPS
Sensor Body Housing RADEL®
Poly-Phenyl-Sulfone, PPSU
Sensor Body Housing KETASPIRE®
Poly-Ether-Ether-Ketone, PEEK
® RADEL, KETASPIRE and RYTON are registered trademarks of Solvay
Twist
Lock pH Sensor & ORP Sensor Options
All 8X31, 8X41, 8X51 & 8X52 series pH sensors and ORP sensors are supplied without tines
(no guard) as the standard configuration (default). Four (4) each protective tines ("GR") or 2 each protective tines ("GRO") are available in both the full length 0.5" inches (for pH sensors) or the reduced 0.3" inch length (typically for parabolic pH or ORP sensors).
Fast
temperature compensation response may be desired for some installations with variable temperature conditions (IotronTM ACCU-TEMPTM).
The ACCU-TEMPTM ("X") option is recommended for most Twist Lock inline installations for best temperature compensation as well as for immersion and submersible installations where the sensor will be frequently removed from service for cleaning and recalibration.
All Twist Lock sensors can have the
waterproofing option added for submersible sensor installations.
All Twist Lock pH sensors or ORP sensors may be mounted from rear
using the 1" MNPT
threads for immersion installations using a suitable mating insertion tube, standpipe or guide rod.
It is recommended to add a protective tines (guard) option when installing the Twist Lock pH sensors or ORP sensors for immersion or submersible style installations.
For inline installations, use the 1" MNPT Twist Lock Receptacle which are available in either KYNAR material of construction with stainless steel locking pins (max 50 psig) or PEEK material of construction with Hastelloy C-276 locking pins (max 100 psig).
Twist Lock pH sensors or ORP sensors can be installed with a variable insertion depth into a process line or tank using a compression fitting only scheme (see link below)
Sensors with integral preamplifiers can be supplied with the rugged field ready Q7M/Q7F NEMA 6P rated quick disconnect snap connector system. See pictures shown below for visualization of this option.
Q7M sensor end of cable snap connector detail close-up view
Q7F-Xm-TL Female Q7F snap to tinned leads extension cable
Q7M/Q7F snap connectors are NEMA 6P rated when interfaced.
Platinum Solution Ground with 2 each reference half-cells
allows for simultaneous use on two completely separate input channels or transmitters
Addition*
“PtD”
3-wire TC*
“M”
Add 4 each Protective Tines (for Twist Lock Series Only)*
“GR”
Add 2 each Protective Tines (for Twist Lock Series Only)*
“GRO”
Shielded & Reinforced Preamplifier Blue Cable*
“BL”
Upgrade from standard Viton® -75 to
CV75, Simriz® 485 or Kalrez® 4079*
“W”, “U” or “K” respectively
* Additional charges apply for these options. Not all options available on all models (inquire to factory).
® Viton and Kalrez are registered trademarks of DuPont. Simriz is a registered trademark of Freudenberg Sealing Technologies (SIMRIT).
Dual pH/ORP all-in-one analog sensor configuration is shown above. This sensor configuration allows for the measurement of pH, ORP and temperature from one sensor when connected to a separate isolated pH channel and isolated ORP input channel. This dual pH/ORP all-in-one style sensor is also available in a smart digital type configuration as well which includes a NEMA 6P rated waterproof snap connector. The smart digital dual pH/ORP all-in-one twist lock quick disconnect bayonet style inline installation configuration can be visualized in the photo below shown with a 1”MNPT PEEK twist lock receptacle installed on the sensor for easy insertion and removal from the process for convenient maintenance tasks such as cleaning without coiling the sensor cable.
Replacement pH & ORP Sensors
For Transmitters that support and/or require Integrated Preamplifiers
The instruments listed below require and/or support integral preamplifiers. Sensors to mate with these OEM pH & ORP transmitters are supplied with the appropriate integrated temperature compensation element, solution ground & OEM compatible high-impedance CMOS operational amplifier (a.k.a. preamplifier) as may be required to ensure full compatibility and optimal performance. Some manufacturers and analyzer models can support both sensors with or without preamplifiers on the same instrument. A sensor hook-up schematics for interfacing to the given OEM pH/ORP transmitter is supplied with each sensor, and some of the most common wiring schematic are posted on our website (please inquire for any not listed).
Replacement pH & ORP Sensors
For Transmitters DO NOT SUPPORT Integrated Preamplifiers
The instruments listed below do no support preamplifiers. Sensors to mate with these OEM pH & ORP transmitters are supplied with the appropriate internal temperature compensation and/or solution ground signals to ensure compatibility. A sensor hook-up schematics for interfacing to the given OEM pH/ORP transmitter is supplied with each sensor, and the some of the most common wiring schematic are posted on our website (please inquire for any not listed). If longer cable runs may be required for your planned installation, it is recommended to select a transmitter that supports preamplifiers (see list to the left).
Fully Supported Hardware - FULL COMPATIBILITY
Manufacturer
pH & ORP Transmitters
OEM pH & ORP Sensors *
Rosemount Analytical Liquid Division
A Part of Emerson Process Management
* ASTI offers pH & ORP sensors compatible with the transmitters listed above as an alternative to mating OEM pH & ORP sensors detailed.
Trademarks (indicated with TM) are registered to the respective corporations as listed above.
Most of the pH/ORP transmitter models listed also have a both contacting conductivity and toroidal (inductive contactless) conductivity transmitter counterpart to which ASTI can also supply alternative sensors to the OEM model sensors. Please inquire for any such conductivity retrofit and replacement sensor needs as well as for the pH & ORP measurements.
The manufacturers and models detailed on this webpage are not a complete listing of the supported OEM pH & ORP transmitters, analyzers and controllers to which ASTI can retrofit our replacement pH, ORP and conductivity sensors.