DLAB DORP10 Portable ORP Meter (Single-Parameter)
| Brand | DLAB |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | Domestic (China) |
| Model | DORP10 |
| Pricing | Upon Request |
Overview
The DLAB DORP10 Portable ORP Meter is a dedicated single-parameter electrochemical instrument engineered for field-deployable and routine laboratory measurement of oxidation-reduction potential (ORP), expressed in millivolts (mV). Operating on the principle of potentiometric measurement, the DORP10 detects the voltage difference between a noble-metal sensing electrode (typically platinum or gold) and a stable reference electrode (Ag/AgCl) immersed in aqueous solution. This voltage reflects the thermodynamic tendency of the sample to gain or lose electrons—critical for monitoring disinfection efficacy, redox-controlled biological processes, wastewater treatment stability, and corrosion inhibition systems. Designed for robustness and operational continuity, the DORP10 integrates a rechargeable lithium-ion battery with intelligent power management and built-in power-loss protection, enabling uninterrupted measurements during extended field use or mobile QC checks.
Key Features
- 3.5-inch high-resolution TFT color LCD display with intuitive graphical user interface—optimized for readability under variable ambient lighting conditions including outdoor daylight
- Intelligent operating system supporting multiple operational modes: real-time continuous measurement, timed interval sampling, manual data hold, and auto-lock function for stable endpoint readings
- Comprehensive data management capability: internal memory stores up to 3000 measurement records with timestamp, temperature, and electrode status metadata
- Flexible calibration protocol: supports both electrode-specific calibration (using standard redox buffers such as quinhydrone or Zobell’s solution) and two-point calibration with certified ORP standards (e.g., +225 mV and +475 mV at 25 °C)
- Type-C charging interface compliant with IEC 62684 and EU Common Charging Specification (CCS), ensuring universal compatibility with modern chargers and power banks
- IP57-rated enclosure—dust-protected and capable of withstanding immersion in water up to 1 meter for 30 minutes—validated per IEC 60529 for reliability in humid, splash-prone, or outdoor environments
Sample Compatibility & Compliance
The DORP10 is validated for aqueous samples across pH 0–14 and temperatures from 0 °C to 50 °C. It is compatible with standard double-junction ORP electrodes equipped with Ag/AgCl reference systems and Pt or Au sensing elements. The instrument meets CE marking requirements for electromagnetic compatibility (EMC Directive 2014/30/EU) and low-voltage safety (LVD Directive 2014/35/EU). While not intrinsically safe for hazardous areas, its design conforms to general-purpose industrial instrumentation guidelines referenced in ISO/IEC 17025:2017 for measurement traceability and environmental robustness. Calibration procedures align with ASTM D1129 and ISO 10523 recommendations for redox potential determination in water quality analysis.
Software & Data Management
Data export is supported via USB connection using vendor-provided PC software (Windows-compatible), enabling CSV-formatted batch download, chronological sorting, and annotation of individual records. The internal logging system maintains audit-ready timestamps synchronized to device real-time clock (RTC), with automatic retention of calibration history—including date, standard used, slope, and offset values. Though the DORP10 does not support FDA 21 CFR Part 11-compliant electronic signatures or multi-user role-based access, its structured data output and calibration traceability support GLP-aligned documentation workflows when integrated into laboratory information management systems (LIMS) via manual import.
Applications
- Drinking water and swimming pool disinfection monitoring (e.g., chlorine/hypochlorite residual activity assessment)
- Industrial cooling tower and boiler feedwater redox control for scale and microbiological fouling prevention
- Environmental field surveys: surface water, groundwater, and sediment pore-water redox profiling
- Food processing hygiene validation—sanitizer concentration verification in CIP rinse cycles
- Educational laboratories for electrochemistry fundamentals, Nernst equation demonstration, and redox titration endpoint detection
FAQ
What type of ORP electrode is compatible with the DORP10?
The DORP10 accepts standard BNC-input ORP electrodes with Ag/AgCl reference systems and Pt or Au sensing tips. Double-junction configurations are recommended for samples containing sulfides, proteins, or high ion concentrations.
Does the DORP10 measure temperature automatically?
Yes—it features an integrated NTC thermistor sensor that provides automatic temperature compensation (ATC) for ORP readings across 0–50 °C, applying the Nernst-derived correction factor per ISO 10523.
Can calibration data be exported or backed up?
Calibration logs are stored internally and exported alongside measurement data via USB; no cloud sync or remote backup is supported.
Is the DORP10 suitable for use in saline or seawater environments?
While IP57-rated for water resistance, long-term exposure to high-salinity media requires periodic electrode cleaning and reference junction maintenance. Use of a seawater-grade double-junction electrode is advised.
How long does a full charge last under typical usage?
With backlight enabled and average measurement frequency (one reading every 2 minutes), battery life exceeds 100 hours; low-power mode extends operation beyond 200 hours.
