pH Sensor InPro3251i/SG/120
High Performance, High Accuracy pH & ORP.The InPro 3251i SG/120 is a digital, pre-pressurized, low maintenance ISM pH & ORP sensor combined with a temperature sensor for in-line measurement in demanding applications. The 120 mm version is optimal for short installation lengths.
Accurate at Cold Process Temperatures
The InPro 3251i SG/120 provides stable and precise readings at temperatures down to -25⁰ C, thanks to its low temperature pH glass membrane.
Low Maintenance and Easy-to-Use
This digital pH sensor has Intelligent Sensor Management (ISM) technology, offering predictive diagnostics to reduce maintenance and calibration.
Sterilizable and Autoclavable
This sensor provides fast and precise pH and ORP measurement, even after repeated autoclaving and sterilization cycles.
Material No.: 52003693
Features
Reliable, Accurate and Robust
The InPro 3251i SG/120 is designed to withstand the rigors of your production. Its pre-pressurized, maintenance-free reference system ensures high reproducibility and reliable measurement performance under diverse operating conditions.
Advanced Sensor Diagnostics with ISM
This pH sensor features a digital signal and intelligent diagnostics to help manage your maintenance. The sensor provides a clear display of its remaining lifetime, time remaining until calibration, and counts of the SIP and CIP cycles it has undergone.
Easy Validation
The InPro 3251i SG/120 is suited for chemical and pharmaceutical production. Its certification covers hazardous zone use, biocompatibility of the electrolyte, and all relevant hygiene and safety regulations.
Versatile to Meet Your Application Needs
This sensor can measure both pH and ORP (Redox), and has a built-in digital temperature sensor. It is pressure resistant up to 4 barg (58 psig), has a watertight connector, and can withstand repeated sterilization and autoclave cycles.
Specifications
Specifications - pH Sensor InPro3251i/SG/120
| ISM (Digital) or Analog | ISM (Digital) |
| pH Sensing Technology | Glass Membrane Suitable For Low Temperatures (LoT) |
| pH Range | 1 – 11 |
| Reference System | Pre-pressurized liquid electrolyte, ceramic diaphragm, Argenthal cartridge with silver-ion trap |
| Operating Temperature (Fahrenheit) | -13 °F - 176 °F |
| Operating Temperature (Celsius) | -25 °C - 80 °C |
| Cable Connector | K8S |
| Process Connection | Pg 13.5 Thread |
| Sterilizable/Autoclavable | Yes |
| Sensor Length | 120 mm |
| Certificates & Approvals | ATEX/IECEx: Ex ia IIC T6/T5/T4/T3 Ga/Gb CE EHEDG FM: IS Cl. I, II, III, Div 1, GR ABCDEFG/T6 METTLER TOLEDO Quality Certificate PED |
| Operating Pressure (Bar) | 0 to 4 barg |
| Model Family | InPro3250(i) |
| Temperature Sensor | Digital |
| Measurement Parameter | pH |
| Shaft Material | Glass |
| Operating Pressure (PSI) | 0 to 58 psig |
| Solution Ground/Redox Metal | Platinum |
| Refillable Electrolyte | No |
| Hazardous Area Approvals | Yes |
| Primary Media/Application | Chemical Processes Pharmaceutical/Life Science Production |
| Hygienic/Biocompatibility Approvals | Yes |
Features and Benefits
| Reliable, Accurate and Robust The InPro 3251i SG/120 is designed to withstand the rigors of your production. Its pre-pressurized, maintenance-free reference system ensures high reproducibility and reliable measurement performance under diverse operating conditions. |
| Advanced Sensor Diagnostics with ISM This pH sensor features intelligent diagnostics to help manage your maintenance. The sensor provides a clear display of its remaining lifetime, time remaining until calibration is needed, and counts of the SIP and CIP cycles it has undergone. |
| Easy Validation The InPro 3251i SG/120 is suited for chemical and pharmaceutical production. Its certification covers hazardous zone use, biocompatibility of the electrolyte, and all relevant hygiene and safety regulations. |
| Versatile to Meet Your Application Needs This sensor can measure both pH and ORP (Redox), and has a built in digital temperature sensor. It is pressure resistant up to 4 barg (58 psig), has a watertight connector and can withstand repeated sterilization and autoclave cycles. |
Documentation
Certificates
Accessories
Sensor Calibration & Maintenance Tools
The DS AK9-RJ12 is a USB cable adaptor for connecting ISM 1-wire sensors to iSense software. This allows pH, DO and CO2 sensors to be evaluated, maintained and calibrated in the workshop or laboratory.
Diagnostics Away From the Transmitter
The iLink module allows you to access all of the diagnostics of your ISM sensors away from the process with iSense desktop software.
Application Profiling Drives Performance
Store application data on iSense and load directly into an ISM sensor. This allows sensors to learn from preceding sensors in the same process.
Easy Access to Paper Free Documentation
The iLink cable allows sensor calibration and adjustment protocols to be generated automatically in iSense and stored in a fully digital database.
Material No.: 52300383
A universal device for connecting both 1-wire and RS485 ISM sensors to a computer running iSense software.
Material No.: 30130631
Sensor Simulation & Validation
Consumables
Buffers for In-Line pH Sensors
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This package contains six bottles of 250mL of pH 2.00 buffer solution.
Material No.: 51319010
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 1000 mL of pH 2.00 buffer solution.
Material No.: 51319011
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This package contains six bottles of 250mL of pH 4.01 buffer solution.
Material No.: 51340058
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 1000 mL of pH 4.01 buffer solution.
Material No.: 51340228
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This package contains six bottles of 250mL of pH 7.00 buffer solution.
Material No.: 51340060
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 1000 mL of pH 7.00 buffer solution.
Material No.: 51340229
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This package contains six bottles of 250mL of pH 9.21 buffer solution.
Material No.: 51300194
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 1000 mL of pH 9.21 buffer solution.
Material No.: 51340230
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This package contains six bottles of 250mL of pH 10.00 buffer solution.
Material No.: 51340231
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 1000 mL of pH 10.00 buffer solution.
Material No.: 51340232
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single container holds 5000 mL of pH 4.01 buffer solution.
Material No.: 51319012
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single container holds 5000 mL of pH 7.00 buffer solution.
Material No.: 51319016
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single container holds 5000 mL of pH 9.21 buffer solution.
Material No.: 51319017
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 250 mL of pH 2.00 buffer solution.
Material No.: 51340055
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 250 mL of pH 4.01 buffer solution.
Material No.: 51340057
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 250 mL of pH 7.00 buffer solution.
Material No.: 51340059
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 250 mL of pH 9.21 buffer solution.
Material No.: 51300193
Certified and traceable pH buffer solution for sensor calibration and verification in life science and industrial applications. This single bottle contains 250 mL of pH 10.00 buffer solution.
Material No.: 51340056
