Rosemount 396P-02-10-55 TUpH pH/ORP Sensor
Overview
The Rosemount 396P-02-10-55 is a TUpH-series insertion and submersion pH/ORP sensor from Emerson’s Rosemount Analytical liquid analysis range, engineered for continuous pH measurement in harsh, dirty and abrasive process streams. Housed in a molded, reinforced polypropylene body with 1 in. MNPT front and rear facing threads, the sensor is suitable for in-line insertion, tank submersion or flow-through installation. This particular build code (02-10-55) is supplied without an integral preamplifier and a 15 ft cable, fitted with the GPLR hemi-bulb general-purpose glass electrode covering the full 0–14 pH range, and configured for Pt100 RTD automatic temperature compensation compatible with the Rosemount 54, 54e, 1055, 81, 3081, 4081, 5081 and Xmt analyzer/transmitter families.
As the official authorized partner and exclusive regional representative for Rosemount, Seven Star LLC proudly supplies the Rosemount 396P-02-10-55 pH/ORP sensor to water treatment plants, desalination facilities and process industries throughout Oman and the wider GCC. Every unit shipped from Seven Star LLC is genuine Emerson Rosemount factory production, backed by full manufacturer warranty and local technical support – essential for operators in the Sultanate of Oman running continuous pH control loops that cannot tolerate unverified grey-market sensors.
Measurement Principle
The Rosemount 396P generates a pH signal through a glass-membrane electrode pair combined with a patented TUpH reference junction – the entire plastic tip surrounding the glass pH bulb – built from micron-sized reference pathways engineered for ionic exchange. This large-area junction resists plugging by suspended solids far better than a conventional small ceramic frit, which is the dominant cause of pH signal drift in slurry, wastewater and pigment/dye applications. A long internal helical reference pathway further slows the migration of poisoning ions such as sulfide, mercury, cyanide and ammonia toward the reference element, extending stable operating life between maintenance cycles considerably beyond that of standard pH sensors.
Because the raw millivolt signal from a glass pH electrode is extremely high impedance and highly susceptible to noise, the 396P-02-10-55 pairs with a remote preamplifier (per the “02” build code) that converts the signal into a low-impedance, noise-resistant output capable of transmission over long cable runs to the analyzer. A titanium solution ground, built around the electrode in an annular configuration, provides continuous sensor diagnostics when used with compatible Rosemount analyzers, flagging reference degradation or glass impedance issues before they cause a control loop upset. The AccuGlass pH glass formulation used in the sensing bulb further resists cracking and reduces sodium ion error at high pH, giving accurate, drift-resistant readings across the entire 0–14 pH measuring range.
Engineering Design of the Rosemount 396P-02-10-55
The 396P-02-10-55 wetted assembly is built from titanium, polypropylene, EPDM and glass, chosen for broad chemical compatibility with acidic, alkaline and particulate-laden process streams. The sensor threads directly into a 1 in. MNPT process connection and can be installed via insertion fitting, ball valve retractable assembly, submersion mounting or a flow-through tee, giving plant engineers flexibility to match the installation to available process access. This build ships without an integral preamplifier, meaning it is designed to pair with a remote junction box preamplifier for sensor-to-analyzer distances beyond 15 ft, keeping the sensor head compact for tight installation points.
The recessed, shrouded standard tip on hemi-bulb variants like the 396P-02-10-55 protects the glass electrode from mechanical damage during installation and cleaning, while an optional slotted tip is available where higher process flow across the glass surface is desired. Automatic temperature compensation is built in via a Pt100 RTD (per the “55” compatibility code), matched to the Rosemount 54, 54e, 1055, 81, 3081, 4081, 5081 and Xmt analyzer and transmitter platforms. The sensor is rated for operation up to 100°C (212°F) and 150 psig depending on glass style, and weighs approximately 0.45 kg, making it straightforward to service or replace without special lifting equipment.
Key Features
The Rosemount 396P pH/ORP sensor delivers a combination of maintenance reduction and measurement stability valued across GCC process and utility applications:
- The Rosemount 396P patented TUpH large-area reference junction resists plugging by suspended solids, cutting routine maintenance in dirty and slurry-laden process streams.
- Helical reference pathway slows contamination by poisoning ions, extending stable sensor life well beyond conventional ceramic-frit designs.
- AccuGlass GPLR hemi-bulb electrode covers the full 0–14 pH range with reduced cracking risk and lower sodium ion error at high pH.
- Rugged polypropylene, titanium, EPDM and glass wetted construction resists chemical attack in acidic, alkaline and particulate-heavy media.
- Built-in Pt100 automatic temperature compensation ensures accurate pH readings across varying process temperatures.
- Titanium solution ground provides advanced sensor diagnostics for preventative maintenance on compatible Rosemount analyzers.
- Versatile 1 in. MNPT process connection supports insertion, submersion and flow-through installation configurations.
- Compact, lightweight sensor body simplifies field replacement without disrupting adjacent process piping.
Industrial Applications
The Rosemount 396P-02-10-55 is specified wherever continuous pH monitoring must survive harsh, dirty or abrasive service conditions. Typical duty includes lime slurry neutralization in wastewater treatment, pulp and paper machine headbox pH control, pigment and dye process monitoring, desalination and reverse osmosis pretreatment pH trimming, and general effluent and utility water treatment across refineries, petrochemical complexes and power plants. Its resistance to fouling makes it especially well suited to streams carrying high concentrations of suspended solids, where conventional pH probes require frequent cleaning and recalibration.
As the officially authorized partner for Rosemount, Seven Star LLC distributes the 396P-02-10-55 pH/ORP sensor to municipal water authorities, industrial water treatment contractors and process plants across Oman, Muscat, and the broader GCC, including facilities supported through the Sohar and Salalah industrial and free-trade zones. Local availability of the Rosemount 396P and factory-trained support ensure that desalination plants, wastewater treatment works and process utilities in the Sultanate of Oman can specify genuine Rosemount pH instrumentation with confidence in calibration traceability, spare parts and long-term service.
Technical Specifications
Key technical parameters for the Rosemount 396P pH/ORP sensor, model Rosemount 396P-02-10-55, are summarized below for engineering reference.
| Parameter | Specification |
|---|---|
| Model | Rosemount 396P-02-10-55 |
| Measurement Range | pH 0–14; ORP -1500 to +1500 mV |
| Electrode Type | GPLR hemi bulb, General Purpose Low Resistivity (Code 10) |
| Preamplifier / Cable | Without integral preamplifier, 15 ft cable (Code 02) |
| Analyzer / TC Compatibility | Models 54, 54e, 1055, 81, 3081, 4081, 5081, Xmt – Pt100 RTD (Code 55) |
| Wetted Materials | Titanium, polypropylene, EPDM, glass |
| Process Connection | 1 in. MNPT, front and rear facing threads |
| Temperature Range | 0–100°C (32–212°F) |
| Pressure Rating (Hemi Bulb) | 100–1136 kPa abs (0–150 psig) |
| Minimum Conductivity | 75 µS/cm nominal, 100 µS/cm recommended |
| Installation | Insertion, submersion, or flow-through |
| Weight | 0.45 kg (1 lb) |
| Reference Technology | TUpH large-area reference junction with helical pathway |
Request a Quote for Rosemount 396P-02-10-55 TUpH pH/ORP Sensor
Seven Star LLC invites water treatment engineers, procurement teams and plant operators across Oman and the GCC to request a formal RFQ for the Rosemount 396P-02-10-55 pH/ORP sensor. As the authorized partner for Rosemount in Oman and the GCC, Seven Star LLC maintains regional warehouse stock of frequently specified TUpH sensor configurations, provides the full technical datasheet for engineering review, and offers direct access to our instrumentation division for application sizing and analyzer compatibility support. Contact Seven Star LLC today to secure genuine, factory-warrantied Rosemount pH/ORP instrumentation for your next project in Muscat, Sohar, Salalah or anywhere in the Sultanate of Oman.
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