
( Brand: Oakton ), ( Manufacturer Part Number: 35108-00 ), ( Part Type: Controller ), ( Country Of Origin: Singapore )
The **Oakton 35108-00 pH/ORP Controller (800 Series)** is a robust, high-performance instrument designed to provide precise control and monitoring of pH and oxidation-reduction potential (ORP) levels in industrial, laboratory, and commercial applications. Engineered with durability and accuracy in mind, this controller is ideal for environments where consistent pH and ORP management is critical, such as water treatment facilities, swimming pools, food and beverage processing, aquaculture, and chemical manufacturing. Its sleek yet rugged design ensures reliable operation even in demanding conditions, featuring a sturdy metal housing that protects against dust, moisture, and accidental impacts. The controller operates on a user-friendly interface, combining a clear, backlit LCD display with intuitive navigation buttons for effortless setup and real-time monitoring. With a wide measurement range spanning from 0 to 14 pH units and -1000 to 1000 mV for ORP it accommodates a broad spectrum of applications, ensuring flexibility for both standard and specialized processes.
At the heart of the Oakton 35108-00 is its advanced analog output functionality, delivering a precise 4-20 mA signal that seamlessly integrates with PLCs, data loggers, or other automation systems, enabling automated control and remote monitoring. The controller also includes programmable setpoints, allowing users to define custom thresholds for pH or ORP levels, which trigger alerts or adjustments via relays or digital outputs. This feature is particularly valuable in maintaining optimal conditions for processes such as disinfection, corrosion prevention, or water purification, where deviations from set parameters can impact efficiency or safety. Additionally, the device supports dual-channel operation, enabling simultaneous monitoring of two separate sensors such as a pH probe and an ORP probe on a single unit, which streamlines workflows and reduces equipment clutter.
Built for reliability, the Oakton 35108-00 incorporates a high-quality, temperature-compensated pH/ORP sensor interface, ensuring accurate readings across varying environmental temperatures. The controller s calibration capabilities are straightforward, with a built-in calibration function that simplifies the process of maintaining sensor accuracy over time. Its compact yet functional design makes it easy to mount on walls, benches, or control panels, while its low-power consumption ensures efficient operation without compromising performance. Whether used in a laboratory setting for precise experimental control or in an industrial plant for large-scale process management, this controller delivers the precision, versatility, and durability required to meet the most demanding applications. With its blend of advanced features and user-centric design, the Oakton 35108-00 stands as a dependable solution for professionals who demand accuracy and control in their pH and ORP monitoring needs.
### **Pros and Cons of buying a Oakton 35108-00 pH/ORP Controller (800 Series)**
#### **Pros:**The Oakton 35108-00 is a reliable and versatile pH/ORP controller designed for industrial, laboratory, and commercial applications. Its key advantages include:
1. **Dual Functionality (pH ORP)** Combines pH and oxidation-reduction potential (ORP) measurements in a single unit, making it useful for applications like water treatment, pool maintenance, and chemical processing.
2. **High Accuracy and Precision** Features a high-resolution display with 0.01 pH/ORP resolution, ensuring precise readings for critical processes.
3. **Adjustable Setpoints and Ranges** Allows customization of pH/ORP setpoints, hysteresis, and alarm thresholds, making it adaptable to different applications.
4. **Relay Outputs for Automation** Includes two relay outputs (SPDT) for controlling pumps, valves, or alarms based on pH/ORP readings, enabling automated systems.
5. **Durable Construction** Built with a rugged, waterproof (IP65-rated) housing, making it suitable for wet or harsh environments.
6. **Calibration Capability** Supports easy calibration with Oakton s compatible electrodes, ensuring long-term accuracy.
7. **Backlit Display** Improves visibility in low-light conditions, useful in industrial settings.
8. **Compatibility with Oakton Electrodes** Works seamlessly with Oakton s pH and ORP probes, reducing compatibility issues.
9. **Modular Design** Can be expanded with additional modules (e.g., temperature compensation) if needed.
10. **Good Brand Reputation** Oakton is a trusted name in water quality and process control instrumentation, offering reliable customer support and warranties.
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#### **Cons:** While the Oakton 35108-00 is a strong product, it has some limitations to consider:1. **Limited Advanced Features** Compared to some high-end industrial controllers, it lacks advanced functionalities like data logging, wireless connectivity, or touchscreen interfaces.
2. **No Built-in Temperature Compensation** Requires an external temperature probe or manual input for temperature adjustments, which may add complexity in some applications.
3. **Basic Alarm System** Relies on relay outputs for alarms, which may not be as sophisticated as digital or audible alarm systems in other controllers.
4. **Electrode Dependency** Performance heavily relies on the quality of the connected pH/ORP electrode; poor electrodes can lead to inaccurate readings.
5. **No Built-in Calibration Buffer Storage** Unlike some competitors, it does not include storage for calibration buffers, requiring external storage.
6. **Potential Learning Curve** Users unfamiliar with pH/ORP controllers may need time to adjust setpoints and understand the display functions.
7. **Price Point** While reasonably priced for its features, it may be on the higher end for basic pH controllers, especially for small-scale or hobbyist users.
8. **Limited Software Integration** Lacks direct integration with SCADA or industrial automation software, which may require additional gateways or interfaces.
9. **No Built-in Data Export** Unlike some digital controllers, it does not automatically export data to USB or cloud platforms for record-keeping.
10. **Replacement Parts Availability** While Oakton is reliable, replacement electrodes or probes may need to be purchased separately, potentially adding to long-term costs.
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### **Conclusion:**The Oakton 35108-00 pH/ORP controller is an excellent choice for users who require a **durable, dual-function controller** with **precise measurements and automation capabilities** in industrial, laboratory, or commercial settings. Its **reliability, ease of use, and compatibility with Oakton s ecosystem** make it a strong option for applications like water treatment, swimming pools, and chemical processing.
However, if you need **advanced data logging, wireless connectivity, or touchscreen controls**, you may need to consider more expensive alternatives. For **small-scale or hobbyist use**, a simpler, lower-cost pH meter might suffice. Additionally, users must ensure they have **high-quality electrodes** and are prepared for **potential calibration maintenance**.
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### **Recommendation:** **Buy the Oakton 35108-00 if:**- You need a **reliable, dual-function (pH ORP) controller** for industrial or commercial applications.
- You require **automation via relay outputs** for pumps, valves, or alarms.
- You prefer a **durable, waterproof unit** with a clear display.
- You are already using Oakton electrodes and appreciate their ecosystem.
**Consider alternatives if:**- You need **advanced data logging, wireless connectivity, or SCADA integration** (e.g., Hanna Instruments HI98197 or YSI Professional Plus).
- You are on a tight budget and only need **basic pH monitoring** (e.g., Oakton pH700 or simpler handheld meters).
- You require **touchscreen or more user-friendly interfaces** (e.g., some industrial PLC-based controllers).
**Final Verdict:** The Oakton 35108-00 is a **solid, well-rounded choice** for users who prioritize **accuracy, durability, and automation** without needing cutting-edge features. It strikes a good balance between performance and cost for its intended applications.
Powers on, but is untested beyond that. Please see the pictures for condition.