Product Description
Apera Instruments DO850 & DO8500 Series
Portable Optical Dissolved Oxygen (DO) Meters
The Apera Instruments DO850 and DO8500 Series represent the next generation of Dissolved Oxygen measurement, utilizing advanced luminescent optical sensor technology. Designed for environmental monitoring, aquaculture, wastewater treatment, and field research, these portable meters eliminate the frustrations associated with traditional galvanic or polarographic DO probes. The optical sensor does not consume oxygen, requires no flow rate or continuous stirring, and eliminates the need for warm-up times, membrane replacements, and electrolyte solutions.
Both models feature a rugged, IP57 waterproof and dustproof design, enclosed in a durable silicone sleeve for maximum grip and protection in harsh field conditions. The intuitive interface and large backlit LCD display ensure rapid, stable readings of Dissolved Oxygen (in mg/L or % saturation) alongside temperature. The system uses a replaceable optical sensor cap with an extended lifespan, minimizing maintenance costs and downtime.
For advanced applications, the DO8500 model introduces automatic salinity compensation and comprehensive GLP data management. With its built-in data logger and USB output, the DO8500 allows researchers to store time-stamped measurements and effortlessly export data for regulatory compliance and detailed analysis.
Model Selection Guide: Parameter-Specific Variants
| Model | Measured Parameters | System Configuration |
|---|---|---|
| DO850 | Dissolved Oxygen (Optical), Temperature (with manual barometric/salinity input) | Standard optical DO portable kit designed for rapid field measurements. |
| DO8500 | Dissolved Oxygen (Optical), Temperature, Automatic Salinity Compensation | Advanced optical DO kit featuring GLP data logger, USB output, and automatic compensation. |
Key Performance Features
- Luminescent Optical Technology: Fast response, zero oxygen consumption, no stirring required, and immune to cross-contamination from typical water impurities.
- Zero Maintenance Sensor: Completely eliminates traditional DO maintenance—no filling solutions, no fragile membranes, and no warm-up delays.
- Advanced DO8500 Capabilities: Includes automatic salinity compensation for estuarine/marine applications and a GLP data logger with USB PC output.
- Field-Ready Durability: Housed in an IP57 waterproof structure with a protective silicone sleeve, ensuring reliable operation in demanding environments.
- Complete Turnkey Kit: Delivered in a heavy-duty hard-shell carrying case with the meter, optical DO probe, calibration accessories, and (for DO8500) PC software.
General Technical Specifications
| Parameter | Specification |
|---|---|
| Product Series | Optical DO Portable Kits (DO850/DO8500) |
| Measurement Principle | Luminescence / Optical |
| Data Output & Storage | USB Port / GLP Data Logger (DO8500 only) |
| Ingress Protection | IP57 Waterproof and Dustproof |
| Calibration Method | Water-saturated air (100%) or Zero Oxygen (0%) |
