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pH Sensor InPro4850i/SG/120

Name: pH Sensor InPro4850i/SG/120
Brand: Mettler Toledo

For Tough Chlor-alkali Processes.The InPro 4850i/120 is a dual-membrane pH and ORP sensor for measuring processes with a stable sodium concentration. This 120 mm probe combines accurate measurement with durability for tough environments.

For use in chlor-alkali production

The InPro 4850i is specifically designed for chlor-alkali processes. It uses the sodium concentration in the process (brine) as a reference.

Designed to withstand harsh conditions

This pH sensor has no diaphragm, making it immune to chlorine and other oxidizing agents that can lead to failure in other pH and ORP electrodes.

An advanced digital pH sensor with ISM

The InPro 4850i has an ISM digital signal that is immune to interference and distortion and ensures 100% signal integrity and stability.

Material No.: 30536625

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Overview
Documentation
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Specifications - pH Sensor InPro4850i/SG/120

ISM (Digital) or Analog	ISM (Digital)
pH Sensing Technology	Highly Alkali Resistant Glass Membrane for Tough Conditions (HA)
pH Range	0 – 14
Reference System	Hermetically sealed, sodium sensitive glass membrane
Operating Temperature (Fahrenheit)	14 °F - 248 °F
Operating Temperature (Celsius)	-10 °C - 120 °C
Cable Connector	K8S
Process Connection	Pg 13.5 Thread
Sterilizable/Autoclavable	No
Sensor Length	120 mm
Certificates & Approvals	CE METTLER TOLEDO Quality Certificate FM: IS Cl. I, II, III, Div 1, GR ABCDEFG/T6 ATEX/IECEx: Ex ia IIC T6/T5/T4/T3 Ga/Gb PED
Operating Pressure (Bar)	0 to 12 barg @ 120 °C
Model Family	InPro4850(i)
Temperature Sensor	Digital
Measurement Parameter	pH ORP/Redox
Shaft Material	Glass
Operating Pressure (PSI)	0 to 174 psig @ 248 °F
Solution Ground/Redox Metal	Platinum
Refillable Electrolyte	No
Hazardous Area Approvals	Yes
Primary Media/Application	Chemical Processes
Hygienic/Biocompatibility Approvals	No

Long life in chlor-alkali applications

The InPro 4850i/120 features a sodium-sensitive glass membrane that uses the chlor-alkali process brine as a reference. The reference system has no junction, which allows the pH sensor to resist oxidation and extends the sensor's life.

Versatile pH and ORP sensor

This combined pH and ORP sensor uses a platinum solution ground and shielding system that stabilizes the signal and enables redox measurement. Additionally, the digital signal provides 100% signal integrity for stable and accurate measurement.

Diagnostics to reduce maintenance

The ISM predictive diagnostics on the InPro 4850i allow the shift from time-based maintenance to predictive maintenance. The sensor provides a clear indication of when it will need to be calibrated and replaced to reduce unplanned downtime.

Compliance with safety regulations

The InPro 4850i chlor-alkali pH and ORP sensor is Ex-certified, so it can be used for demanding processes in the hazardous-classified zones of your production facility.

Documentation

This white paper considers the problems of pH measurement in the chlor-alkali membrane cell process and looks at the InPro 4850i, a chlor-alkali pH el...

Application Notes

pH Measurements in Chlor-Alkali Production

A combination of elevated temperatures, the presence of oxidants, and highly sensitive sensor output signal makes reliable pH measurement in the chlor...

Case Studies

Chlor-Alkali Process pH Measurement

Accurate pH measurement is critical in chlor-alkali processes, but the conditions are very tough on conventional pH sensors. Using a sensor designed s...

Chlor-Alkali pH Sensors

This case study describes how at a US chlor-alkali site, pH and ORP measurements in harsh conditions were extremely problematic. METTLER TOLEDO was gi...

Accessories

Sensor Calibration & Maintenance Tools

iSense Adaptor Cable DS AK9-RJ12

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

iLink Multi

A universal device for connecting both 1-wire and RS485 ISM sensors to a computer running iSense software.

Material No.: 30130631

Sensor Simulation & Validation

ISM Simulator pH Kit

Simulating ISM sensors

Material No.: 52300410

Consumables

Software

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pH Sensor InPro4850i/SG/120

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pH Sensor InPro4850i/SG/120

For Tough Chlor-alkali Processes.The InPro 4850i/120 is a dual-membrane pH and ORP sensor for measuring processes with a stable sodium concentration. This 120 mm probe combines accurate measurement with durability for tough environments.

Documentation

Datasheets

Certificates

Technical Specifications

Manuals

White Papers

Application Notes

Case Studies

Accessories

Sensor Calibration & Maintenance Tools

Sensor Simulation & Validation

Consumables

Software

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