Jenway 3510 Benchtop pH / mV / Temperature Meter
| Brand | Jenway |
|---|---|
| Origin | United Kingdom |
| Model | 3510 |
| Instrument Type | Benchtop |
| Parameter Type | Single-parameter (pH/mV/°C) |
| pH Range | –2.000 to +19.999 |
| pH Resolution | 0.001 / 0.01 / 0.1 |
| pH Accuracy | ±0.003 |
| mV Range | ±1999.9 mV |
| mV Resolution | 0.1 / 1 mV |
| mV Accuracy | ±0.2 mV |
| Temperature Range | –10 to +105 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.5 °C |
| ATC Range | 0 to 100 °C |
| Calibration Options | 1-, 2-, or 3-point with auto-buffer recognition (Jenway, DIN, NIST, JIS standards) |
| Data Storage | Up to 32 measurement records |
| Interface | RS232 (DataWay compatible) |
| Power Supply | 9 V AC ±10%, 50/60 Hz |
| Dimensions (L×W×D) | 210 × 250 × 55 mm |
| Weight | 850 g |
Overview
The Jenway 3510 Benchtop pH / mV / Temperature Meter is a precision electrochemical instrument engineered for routine laboratory pH, redox potential (mV), and temperature measurements. Designed in accordance with international electrochemical metrology principles, the 3510 employs high-impedance input circuitry (>1012 Ω) and low-drift amplifier architecture to ensure stable signal acquisition from glass combination electrodes. Its extended pH range (–2.000 to +19.999) supports applications beyond conventional aqueous systems—including highly acidic digestates, alkaline cleaning solutions, and non-aqueous solvent mixtures—while maintaining traceable accuracy against certified reference standards. The meter operates on a dual-slope analog-to-digital conversion principle, minimizing thermal drift and quantization error across its full operating temperature span (–10 to +105 °C). As a CE-marked device manufactured under ISO 9001-certified quality management systems in the UK, the 3510 meets fundamental requirements for reliability in regulated environments where data integrity and repeatability are essential.
Key Features
- Triple-resolution pH display (0.001 / 0.01 / 0.1) configurable per application need
- Three-point calibration with automatic buffer recognition for Jenway (2.00, 4.00, 7.00, 9.20, 10.00), DIN, NIST, and JIS standard buffers
- Simultaneous real-time display of pH and temperature values with Automatic Temperature Compensation (ATC)
- Integrated RS232 interface compliant with DataWay protocol for direct connection to printers or PCs without proprietary drivers
- Non-volatile memory storing up to 32 measurement records with timestamp and electrode ID (when used with compatible electrodes)
- BNC input socket with short-circuit protection and built-in BNC dummy plug for safe electrode disconnection
- Robust ABS housing with ergonomic front-panel layout and tactile keypad feedback for glove-compatible operation
Sample Compatibility & Compliance
The 3510 is validated for use with standard glass combination pH electrodes (e.g., Jenway 924 005), refillable reference electrodes, and ATC probes (e.g., Jenway 027 500). It accommodates samples ranging from aggressive industrial process streams (pH 14), provided appropriate electrode selection and junction maintenance protocols are followed. While the instrument itself does not include GLP/GMP audit-trail functionality, its calibration history (date, buffer IDs, slope, offset) can be manually recorded or exported via RS232 for inclusion in laboratory notebooks compliant with ISO/IEC 17025, ASTM E2064, or USP . All electrical safety and EMC performance comply with EN 61010-1 and EN 61326-1 directives.
Software & Data Management
No dedicated software is required for basic operation; however, raw data export is supported through ASCII-formatted RS232 transmission at 9600 baud, 8N1. Output includes measured value, unit, temperature reading, and calibration status flag. When integrated into laboratory information management systems (LIMS), the 3510’s deterministic output format enables automated parsing and metadata tagging. For regulatory workflows requiring electronic record retention, users may configure external serial loggers or terminal emulators to capture timestamps and operator identifiers—supporting alignment with FDA 21 CFR Part 11 when combined with procedural controls.
Applications
- Quality control testing of pharmaceutical excipients and buffer formulations
- Environmental monitoring of wastewater effluents and soil leachates
- Food and beverage titration endpoint verification and process stabilization
- Academic teaching labs for electrochemical fundamentals and calibration methodology
- Chemical manufacturing QC for acid/base neutralization validation
- Research applications involving non-standard pH media (e.g., ethanol-water mixtures, glycerol solutions)
FAQ
Does the Jenway 3510 support automatic electrode diagnostics?
No. The 3510 does not perform impedance or asymmetry potential checks. Users must verify electrode health manually via slope and offset evaluation during calibration.
Can I use non-Jenway pH electrodes with this meter?
Yes—any BNC-output pH electrode meeting standard output impedance (< 250 MΩ) and DC voltage range (±1 V) is compatible.
Is the RS232 interface optically isolated?
No. The port is electrically coupled and requires proper grounding when connected to sensitive computing equipment.
What is the recommended recalibration frequency?
Per ISO 8655-5 and CLSI EP21-A guidelines, recalibration is advised before each analytical session or after every 10–15 measurements in high-precision work.
Does the 3510 meet IP rating requirements for wet-lab environments?
It carries no formal IP rating; however, its sealed front panel and drip-resistant key design provide limited protection against incidental splashes—intended for benchtop use under controlled ambient conditions.
