Orion 3-Star 310P-06 Precision Benchtop Ultrapure Water pH Meter
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 310P-06 |
| Price | Upon Request |
Overview
The Orion 3-Star 310P-06 is a high-precision benchtop pH meter engineered specifically for ultrapure water applications in power generation, semiconductor manufacturing, pharmaceutical water systems, and municipal drinking water quality assurance. It operates on the fundamental principle of potentiometric measurement: detecting the electromotive force (EMF) generated across a pH-sensitive glass membrane relative to a stable reference electrode, then converting that voltage into a pH value using the Nernst equation. Its design addresses the unique challenges of low-conductivity ultrapure water—such as high electrical resistance, slow electrode response, and susceptibility to junction potential drift—through optimized electrode interface architecture, advanced signal stabilization algorithms, and dedicated calibration protocols compliant with ASTM D1129 and ISO 3696 Grade 1 water specifications.
Key Features
- Ultra-high-resolution pH measurement: range –2.000 to 19.999 with selectable resolution of 0.1 / 0.01 / 0.001 pH units and ±0.001 pH accuracy at 25°C
- Dual-mode mV measurement: ±1999.9 mV range with 0.1 mV resolution; relative accuracy of ±0.1 mV or ±0.05% (whichever is greater)
- Intelligent stability and averaging: Smart Stability™ dynamically adjusts response threshold based on signal noise, reducing equilibration time by up to 40%; Smart Averaging™ applies weighted moving-average filtering to enhance repeatability in low-conductivity samples
- Comprehensive temperature compensation: automatic or manual mode; temperature range –5 to 105°C; accuracy ±0.1°C from –5 to 99.9°C
- Built-in GLP-compliant data management: stores up to 200 measurement records with timestamps, electrode ID, calibration history, and environmental conditions
- Secure multi-user operation: 10 password-protected method storage slots, audit-ready calibration logs (last 10 calibrations), and optional FDA 21 CFR Part 11 software module for electronic signature and audit trail compliance
- Rugged industrial-grade enclosure: IP54-rated benchtop housing (dust-protected and splash-resistant); CE, UL, CSA, TÜV, and FCC Class A certified
Sample Compatibility & Compliance
The 310P-06 is validated for use with ultrapure water (UPW) systems meeting ASTM D5127 and SEMI F63 standards, including boiler feedwater, condensate, deionized water loops, and purified water (PW) distribution networks. It supports calibration using NIST-traceable, USP-compliant pH buffers (1.68, 4.01, 7.00, 10.01, 12.46) and DIN buffers (1.68, 4.00, 6.86, 9.18, 12.46), with up to five-point auto-calibration and user-defined buffer sets. The included 8102BNUWP ROSS Ultra pH electrode features a low-resistance glass membrane, double-junction reference system with KCl-free electrolyte, and integrated ATC (Automatic Temperature Compensation) sensor—optimized to minimize liquid junction potential drift in conductivity <1 µS/cm environments.
Software & Data Management
Data export and instrument configuration are supported via bidirectional RS232 interface (USB cable optional). Orion Star Com software enables remote calibration, method deployment, real-time data streaming, and automated report generation in PDF/CSV formats. All stored data include mandatory GLP metadata: operator ID, date/time stamp, electrode serial number, calibration slope/mV offset, temperature, and ambient humidity. Firmware updates and method libraries are downloadable via secure web portal, ensuring long-term regulatory alignment with evolving ISO/IEC 17025 and 21 CFR Part 11 requirements.
Applications
- Continuous monitoring of steam-cycle chemistry in fossil and nuclear power plants
- Real-time pH verification in semiconductor fab UPW distribution systems (e.g., rinse tanks, DI loops)
- Pharmaceutical purified water (PW) and water-for-injection (WFI) system validation per USP
- Drinking water treatment plant compliance testing against EPA Method 150.1 and WHO Guidelines
- Calibration verification of online pH analyzers using portable reference standards
- Research laboratories requiring traceable, low-drift measurements in ultra-low ionic strength matrices
FAQ
Does the 310P-06 support automatic temperature compensation with all electrode types?
Yes—ATC is fully compatible with any Orion miniDIN temperature probe or integrated ATC electrodes such as the 8102BNUWP.
Can calibration data be exported for internal QA audits?
Absolutely. Calibration logs—including buffer IDs, measured mV values, slopes, offsets, and pass/fail status—are exportable in timestamped CSV format via RS232 or USB.
Is the instrument suitable for field use outside the lab?
Yes. Dual power operation (4×AA alkaline batteries or universal AC adapter) and IP54 rating enable reliable deployment in control rooms, turbine halls, and water treatment skids.
What regulatory frameworks does the optional 21 CFR Part 11 software module cover?
It provides full electronic signature capability, role-based access control, immutable audit trails, and data integrity safeguards aligned with FDA, EMA, and PMDA expectations for regulated GxP environments.
How often should the ROSS Ultra electrode be recalibrated in ultrapure water service?
Per ASTM D1129 guidance, recalibration is recommended before each critical measurement session or at least every 2 hours during continuous monitoring—especially when ambient temperature fluctuates >2°C.
