Polilyte Plus H Arc 225

Part # 242428-1323

The Polilyte Plus Arc sensor offers durable, maintenance-free pH measurement in harsh industrial settings like chemical, petrochemical, and wastewater treatment. Its clog-resistant Single Pore junctions and long-lasting Everef-L reference ensure stable performance. 

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Polilyte Plus Arc Details

The Polilyte Plus Arc sensor is engineered for demanding industrial applications, providing reliable pH measurement in chemical, petrochemical, process water, and wastewater treatment environments. Its maintenance-free design incorporates dual single-pore junctions that prevent clogging, ensuring consistent and accurate readings even in challenging media. The sensor is optimized for highly alkaline solutions and low-conductivity samples, delivering precise results with minimal maintenance. The Everef-L reference cartridge extends the sensor's lifespan and reduces the need for replacements. This combination of features makes the Polilyte Plus Arc a robust, cost-effective choice for continuous pH monitoring in tough industrial settings. Available in Hamilton Type PHI, H, HB, or HF glass. 

Common applications Water, Energy, & Environment, Water and Wastewater, Chemical Processes, Petrochemicals, Oil & Gas Processing, Pharma & Biopharma

Reliable performance in harsh environments

Low maintenance and long lifespan

Integrated Liquid Earth Technology

Improves sensor diagnostics for proactive maintenance and optimized performance

Maintenance-Free Design

No need for frequent cleaning or recalibration, reducing downtime and labor.

Scientific Citations

  • Hamilton pH sensors are characterized by their high measuring accuracy and long service life.

    Hamilton pH sensors are characterized by their high measuring accuracy and long service life. This contributes significantly to the control of our processes. They also help us to guarantee the required product quality and to further optimize processes.

    Felix Colin
    Bioprocess Engineer, AB Enzymes GmbH

  • The measurement technology from Hamilton is hard to beat in terms of its measurement accuracy and reliability.

    The measurement technology from Hamilton that is used in our brewery is hard to beat in terms of its measurement accuracy and reliability. The planning security and cost stability with the subscription is very attractive and important to us. Hamilton offers great support and is always open to customer requests.

    Holger Bruckes
    Deputy head of Quality Assurance Mönchengladbach Brewery, Branch of OETTINGER Brewery GmbH

  • Hamilton sensors enhance safety, efficiency, and reliability in chemical processes.

    Hamilton sensors and retractable fittings are not only essential for monitoring and controlling our chemical processes, but also make preventive maintenance and fault diagnosis much easier. The robustness and durability of the products mean fewer emergency call-outs and greater overall plant effectiveness. Overall, the sensors make a significant contribution to the safety, efficiency and reliability of our operating processes and help us to meet and exceed our high standards.

    Dimitri Brumm
    EMR Operating Engineer - Cassella Chemiepark

  • I could not be more pleased with my experience with Hamilton!

    My company has been using Hamilton probes for years and have always been happy with their performance! The team is always very helpful in trouble shooting issues and answering any questions that we may have about our probes. Overall, I could not be more pleased with my experience with Hamilton!

    Abigail Mann
    Bioprocessing Fermentation Associate at Heliae Development

Polilyte Plus H Arc 225 Specifications

Print
Process Connection PG13,5
Wetted Parts GΙass
FKM
Electrical Connector VP8
Measuring Range pH 0 to 14
Electrolyte Polisolve Plus
Sensitivity 57 to 59 mV / pH at 25 °C
Zero Point 0 ± 20 mV
pH Glass Resistance Moderate
Membrane Shape Spherical
Diaphragm Single Pore
Number of Diaphragms 2
Reference System Hamilton Everef-L
Liquid Earth No
Temperature Sensor NTC 22 kOhm
Configurable Values pH: pH, mV; Temperature: °C, K, °F
Analog Interface 1 4 to 20 mA for pH, programmable
Analog Interface 2 4 to 20 mA for Temp., programmable
Analog Interface 1 and 2 Galvanically not isolated; pulse width modulation 3.5 kHz
Digital Interface RS485 Modbus (max. 32 addresses)
Baud Rate 4800, 9600, 19200, 38400, 57600, 115200 Bd
Operating Voltage 7 to 30 VDC max. 150 mW
Serial Number Yes
Recommended Storage Hamilton Storage Solution or 3 M KCl
Certificate Yes, with measured values in Buffer pH 4.01 and pH 7.00
ATEX Approval No
IECEx Approval No
Diameter 12 mm
Sample min Conductivity 2 µS/cm
Upside Down Installation Not Supported
pH Glass Hamilton Type H Glass
a-length 225 mm
Autoclavable Yes, max. Temperature 130 °C
Steam Sterilizable Yes, max. Temperature 130 °C
CIP No
Operating Temperature Range Analog interface: 0 to 100 °C; Digital interface: 0 to 130 °C
Pressure Range bar g 0 to 16 bar (100 °C), 0 to 10 bar (130 °C)

Polilyte Plus H Arc 225 Resources

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

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Article

Common Questions for Autoclave Sterilization of Sensors

This brief article examines common questions from end-users about best practices for autoclaving Hamilton sensors.
Hamilton Arc Air manual

Article

ArcAir 3.11 Downloads

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Article

Glossary of Sensor & Biopharma Acronyms & Abbreviations

Acronyms and abbreviations are commonly used with process analytics measurements found in the biopharma industry. This glossary is an attempt to de-code some of the more frequently used acronyms.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

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FAQ

How much torque is needed to install a sensor with PG13.5 threads?

Sensors with PG13.5 threads rely on the o-ring to seal against process pressure. Finger-tight (approximately 2 Newton Meter or 18 inch-lb) should be sufficient to install the sensor without leakage. Additional tightening beyond this can deform the o-ring or strip the threads.
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FAQ

What is the difference between ORP and Redox?

They are the same. Redox is a shortened word for “Reduction Potential”. ORP is shortened for “Oxidation Reduction Potential”. The sensor and measurement is the same.
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FAQ

What is the difference between traditional, Arc and Memosens sensors?

Traditional sensors provide standard mV output and rely on a separate transmitter or controller to amplify the signal and convert to an actual reading. Arc sensors provide a built-in microtransmitter that can output either 4 - 20mA or Modbus RTU digital communication. Finally Memosens sensors offer a digital signal that works with all Memosens transmitters and analyzers currently on the market.
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