WTW Cond 3310 SET 1 Portable Conductivity Meter

Overview

The WTW Cond 3310 SET 1 is a high-precision, handheld conductivity meter engineered for reliable field and laboratory measurements of aqueous solutions. Based on four-electrode (tetrapolar) AC conductivity measurement technology, it eliminates polarization errors and electrode fouling effects—critical for stable readings in turbid, high-conductivity, or low-resistivity samples such as wastewater, industrial process streams, and natural waters. The instrument operates according to standardized electrochemical principles defined in DIN EN 27888 and ISO 7888, ensuring metrological traceability and compatibility with regulatory reporting frameworks. Its integrated temperature sensor enables automatic temperature compensation (ATC) using linear, nonlinear (nlF), or user-defined β-coefficient models, referenced to either 20 °C or 25 °C. Designed for rugged deployment, the Cond 3310 meets IP66/IP67 ingress protection ratings—making it suitable for extended outdoor use in rain, dust, or humid environments without performance degradation.

Key Features

• Four-electrode measurement architecture (via included TetraCon 325 sensor) for enhanced accuracy in high-conductivity and fouling-prone matrices
• Simultaneous real-time display of conductivity, resistivity, TDS, salinity, and temperature—with configurable units and reference conditions
• Automatic range selection and auto-read functionality with <10 s stabilization time and repeatability <0.5%
• Up to 5000 automated data points stored with timestamp, temperature, calibration status, and sample ID; plus 200 manual entries
• Backlit graphical LCD with intuitive text-based menu navigation and tactile feedback keys for glove-compatible operation
• 100% waterproof USB interface (IP67-rated) enabling secure, cable-based data export to Windows PCs or mobile devices running WTW LabX® Lite software
• Robust silicone keypad and shock-absorbing housing compliant with MIL-STD-810G drop resistance standards
• Built-in calibration timer and electrode diagnostics: post-calibration screen displays K-factor deviation and electrode health status
• Multi-point calibration support (1–5 points) with automatic recognition of 16 certified buffer standards (DIN and NIST traceable)
• Continuous Measurement Control (CMC) algorithm verifies each reading against calibrated tolerance windows—visual indicator for in-spec results, audible/visual alert for out-of-range deviations

Sample Compatibility & Compliance

The Cond 3310 SET 1 accommodates diverse aqueous media including municipal and industrial wastewater, groundwater, surface water, aquaculture systems, pharmaceutical rinse water, ultrapure water loops (down to 0.001 µS/cm via optional K=0.01 cm⁻¹ cell), and food-grade process solutions. Its tetrapolar sensor design minimizes errors from electrode coating, air bubbles, or stray capacitance—particularly beneficial for viscous or particulate-laden samples. The device complies with GLP and GMP documentation requirements through audit-trail-capable data logging (including calibration history, operator ID, and environmental metadata). It supports FDA 21 CFR Part 11–compliant workflows when paired with WTW’s validated LabX® software suite. All electrical safety and EMC performance conform to IEC 61010-1:2010 and EN 61326-1:2013 standards.

Software & Data Management

Data transfer occurs via USB to PC using WTW’s free LabX® Lite software, which provides raw value export (CSV, TXT), trend visualization, statistical analysis (mean, SD, CV%), and customizable report generation. Each stored record includes measurement value, temperature, date/time stamp, user-defined ID, sensor K-factor, calibration validity window, and ATC mode used. Internal memory retains full calibration logs—including date, buffer IDs used, slope/offset values, and electrode constant—enabling retrospective verification during internal audits or regulatory inspections. Firmware updates are delivered via downloadable .hex files and applied directly through the USB interface without external programming hardware.

Applications

• Environmental monitoring: compliance testing of effluent discharge (EPA Method 120.1), river/lake surveying, and groundwater quality assessment
• Pharmaceutical manufacturing: conductivity verification of purified water (PW) and water-for-injection (WFI) per USP
• Aquaculture and hydroponics: real-time salinity and nutrient concentration tracking for optimal biomass yield
• Food & beverage production: incoming water qualification, CIP rinse validation, and brine concentration control
• Swimming pool and spa maintenance: rapid verification of sanitizer efficacy and osmotic balance
• Electronics manufacturing: monitoring deionized water resistivity in wafer cleaning processes
• Educational laboratories: undergraduate electrochemistry experiments requiring portable, multi-parameter instrumentation

FAQ

What electrode is included in the Cond 3310 SET 1 kit?
The set includes the TetraCon 325 four-pole immersion electrode (K = 0.475 cm⁻¹), optimized for stability in high-conductivity samples up to 1000 mS/cm.
Does the instrument support GLP-compliant data export?
Yes—when connected to LabX® Lite, all exported files contain embedded metadata (operator, calibration ID, timestamps) and support electronic signature workflows under configured validation protocols.
Can the device measure ultra-pure water resistivity?
With optional K = 0.01 cm⁻¹ cells (e.g., LR 325), the Cond 3310 achieves resolution down to 0.001 µS/cm—suitable for ASTM D1125 and ISO 3696 Grade 1 water testing.
Is temperature compensation adjustable?
Yes—users may select none, linear (0.000–10.00 %/K), or nonlinear (nlF) compensation, with reference temperatures fixed at 20 °C or 25 °C.
How long does the battery last under typical usage?
With backlight disabled, alkaline batteries provide >1000 hours of continuous operation; with backlight enabled continuously, runtime exceeds 100 hours.