Star A323 Dissolved Oxygen Portable Meter
The Thermo Scientific Orion Star A323 RDO/ Dissolved Oxygen Portable Meter is the top choice for advanced measurements on location. Get the information you need quickly and easily from the large, backlit graphic LCD display. Informative display shows dissolved oxygen in percent saturation or concentration with temperature and electrode status, time, date, sample ID, user ID and calibration points. Advanced features such as stability and averaging options provide additional options allowing for laboratory accuracy everywhere you need it.
- Anyone can use this meter with its plain language screen prompts, soft keys that update for easy selection and a multilanguage interface that supports English, Spanish, French, Italian, German and Chinese
- No need to worry about DO probe compatibility – the meter accepts and automatically recognizes Orionpolarographic and RDO optical/ luminescence-based probes
- Accurate results are easy with automatic temperature, manual salinity and automatic/ manual barometric pressure compensation
- Don't miss a reading – AUTO-READ* locks in the stable reading on your screen, ready indicator alerts when readings are stable and timed reading gathers data in specific time intervals
- Calibrate using water-saturated air, air-saturated water, a Winkler titration or zero point calibration
- Non-volatile memory holds up to 5000 data points with time and date stamp
- Easily transfer data and keep meter software up-to-date with the USB and RS232 ports and complimentary data analysis software
- Four AA batteries (included) provide over 800 hours of operation or purchase the universal power adapter (sold separately) to use AC power
- Perfectly portable, waterproof and protected to take anywhere with a IP67-rated housing
- Three year meter replacement manufacturer warranty
Certifications: CE, TUV, FCC Class A limits
| Temperature Mode | |
| Range | -5° to 105° (23° to 221°) |
| Resolution | 0.1 (0.1) |
| Relative Accuracy | ±0.1 |
| DO Mode | |
| Concentration Range | Polarographic: 0 to 90mg/L; RDO optical: 0 to 50mg/L |
| Concentration Resolution | 0.01, 0.1 |
| Relative Accuracy | Polarographic: ±0.2mg/L; ±2% RDO optical: ±0.1mg/L up to 8mg/L, ±0.2mg/L up to 20mg/L, 10% of reading beyond; ±2% |
| % Saturation Range | Polarographic: 0 to 600; RDO optical: 0 to 500 |
| % Saturation Resolution | 0.1, 1 |
| Salinity Factor | 0 to 45 ppt, manual |
| Calibration | Water-saturated air, air-saturated water, manual (Winkler) and zero point |
| Inputs/Outpus | |
| Inputs | 9-pin mini-DIN |
| Sensor Types | Polarographic or RDO (optical/luminesce-based) DO |
| Data Management | 2000 points with date/time stamp |
| Output | RS-232, USB |
| Display | Graphic LCD; simultaneous display of measurement, temperature, date/time, sample ID, user ID and more |
| Power Supply | Four "AA" batteries or optional universal AC line voltage |
| Environmental Operating Conditions | |
| Relative Humidity | 5 to 85% noncondensing |
| Manufacturer Warranty | 3-year meter replacement |