Ohaus Starter Series Conductivity Probes

Ohaus Starter Series Conductivity Probes

The Ohaus Starter series conductivity probes deliver precise total ionic concentration measurements across diverse applications, featuring six specialized probe variants engineered to address conductivity ranges from ultra-pure water to highly concentrated solutions. These robust probes utilize both advanced 4-electrode and precision 2-electrode measurement technologies to provide accurate, temperature-compensated conductivity readings while minimizing errors from electrode polarization and contamination. The 4-electrode probes (STCON3 and STCON3 IP67) feature durable plastic bodies with 4-ring stainless steel cell construction, offering the widest measurement range from 2 μS/cm to 200 mS/cm with cell constants of 1.5-2.0 cm⁻¹, making them ideal for general purpose laboratory and field applications. All probes include integrated NTC 30 kΩ temperature sensors that power automatic temperature compensation (ATC) ensuring accurate measurements across temperature ranges from 0°C to 80°C depending on the model, and feature removable guards for protection and easy cleaning.

The 2-electrode probe configurations address specialized conductivity measurement requirements with cell materials optimized for specific applications. The STCON5 glass shaft probe with 2-ring platinum cell measures standard conductivity ranges from 50 μS/cm to 2 mS/cm with a 1 cm⁻¹ cell constant, ideal for routine laboratory applications. The STCON7 rugged steel shaft probe utilizes a 316L stainless steel cell for low conductivity measurements from 0.02 μS/cm to 200 μS/cm with a 0.1 cm⁻¹ cell constant, perfect for ultra-pure water, boiler feedwater, and pharmaceutical applications. The STCON8 glass shaft probe with platinum cells measures low ionic strength solutions from 0.055 to 300 μS/cm, while the STCON8 with detachable glass chamber provides flow-through capability for continuous monitoring applications. All Starter Series conductivity probes feature Mini-DIN or CTW connectors for seamless compatibility with Starter bench meters (AB33EC, AB23EC, ST300C) and portable meters (ST300D, ST400M, ST400, ST400D), fitting perfectly in electrode holders and clips. The IP67-rated STCON3 variant offers waterproof protection with a 3-meter cable for demanding field environments requiring submersion or exposure to harsh conditions.

Features of Ohaus Conductivity Probes:

• 1 Year Warranty on all accessories: Genuine Ohaus conductivity probes backed by manufacturer warranty ensuring durability and compatibility with all Starter Series bench and portable meters.
• Dual Electrode Technologies: Choice of advanced 4-electrode cells (wide range, polarization-resistant) or precision 2-electrode cells (specialized ranges, multiple materials) for application-specific accuracy.
• Comprehensive Measurement Range: Six probe variants covering 0.02 μS/cm ultra-pure water measurements through 200 mS/cm high-conductivity solutions with optimized cell constants from 0.1 to 2.0 cm⁻¹.
• Integrated Temperature Compensation: All probes feature built-in NTC 30 kΩ temperature sensors providing automatic temperature compensation across 0°C to 80°C ranges for accurate measurements.
• Multiple Cell Materials: Specialized cell construction options including 4-ring stainless steel, 2-ring platinum, and 2-ring 316L stainless steel optimized for different sample types and chemical resistance.
• Field-Ready Design: STCON3 IP67 variant provides waterproof protection with 3-meter cable and CTW connector for submersion applications and harsh outdoor environments.
• Removable Guard Protection: 4-electrode probes include removable protective guards preventing damage during handling while allowing easy cleaning and maintenance.
• Flow-Through Capability: STCON8 with detachable glass chamber enables continuous monitoring and process applications requiring flow-cell measurement configurations.
• Chemical Resistance: Glass and stainless steel shaft materials provide exceptional resistance to corrosive samples, organic solvents, and extreme pH conditions in demanding applications.
• Universal Meter Compatibility: All probes feature Mini-DIN or CTW connectors with 1-meter cables (3m for IP67) fitting electrode holders on bench meters and clips on portable meters.

Applications for Ohaus Conductivity Probes:

• General Purpose Water Analysis: Using versatile STCON3 4-electrode probe for routine conductivity, TDS, and salinity measurements in drinking water, tap water, and aqueous solutions from 2 μS/cm to 200 mS/cm.
• Ultra-Pure Water Monitoring: Measuring conductivity in deionized water, distilled water, and pharmaceutical-grade water with low-range STCON7 or STCON8 probes (0.02–300 μS/cm) for quality assurance.
• Pharmaceutical Manufacturing: Verifying water-for-injection (WFI) quality and clean-in-place (CIP) system effectiveness with ultra-low conductivity STCON7 or STCON8 probes meeting USP standards.
• Industrial Process Control: Continuous monitoring of process water quality using STCON8 with glass chamber for flow-through applications in manufacturing and chemical processing.
• Wastewater Treatment Operations: Testing influent and effluent conductivity in municipal and industrial wastewater facilities with durable 4-electrode STCON3 probe resistant to contamination.
• Environmental Field Monitoring: Testing conductivity in streams, rivers, lakes, and groundwater with waterproof STCON3 IP67 probe offering 3-meter cable for remote sampling locations.

Need Help? Call 1300 812 450

Downloads

Ohaus Starter Series Conductivity Probes - Manual 

  Product Brochure                                                                                          Owner's Manual 

Ohaus Water Analysis and Electrodes - Brochure PDF        Ohaus Starter STCON7 Probe - Manual PDF