Dissolved Oxygen Portable Meter
- Thermo Orion - Star A123 - Basic
- Range (Polarographic DO): 0.00 to 20.00mg/L
- Percent Saturation Range (Polarographic DO): 0.0 to 200.0 % saturation
- User-friendly operation with basic calibration text prompts
Take simple, routine dissolved oxygen and temperature measurements with the Thermo Scientific Orion Star A123 Dissolved Oxygen Portable Meter
An easy-to-use and budget-friendly instrument for basic dissolved oxygen analysis in the field. Calibrate polarographic DO probes using water-saturated air or custom value using Winkler titration. Quickly navigate setup menus and ensure consistent calibrations using the simple keypad layout and on-screen text prompts. Use the included electrode stand to easily place sensors in samples and simplify storage.
Thermo Scientific Orion Star A123 dissolved oxygen portable meters are a simple, economical solution for your routine outdoor sample analysis. Featuring an emphasized measure key, selectable read modes and measurement stability indicator, our basic Orion Star A123 dissolved oxygen meters are designed to deliver measurements you can trust at an affordable price.
- Measure dissolved oxygen in percent saturation or mg/L with temperature using polarographic DO probes
- Calibrate using water-saturated air or custom value (Winkler titration)
- Automatically compensate DO readings using ATC temperature, manual salinity input and manual barometric pressure
- Simplified, easy-to-read display shows main measurement with temperature, stability indicator and electrode condition icon
- User-friendly operation with basic calibration text prompts
- Easily recall calibration data for procedure checks
- Non-volatile memory preserves 50 point internal data log and meter settings, even with loss of power
- Flexible power options with AA batteries or optional universal power adapter
- IP67-rated housing is waterproof for rugged field operation
- Meter kits include hard-sided field case and protective meter armor with electrode holders, adjustable wrist/belt strap and built-in meter stand
- Meters offer CE, TUV 3-in-1 and FCC Class A certifications and 3-year replacement warranty
Many configurations, electrodes, consumables and accessories available on request.
| Range (Polarographic DO) | 0.00 to 20.00mg/L |
|---|---|
| Resolution (Polarographic DO) | 0.01, 0.1mg/L |
| Accuracy (Polarographic DO) | ±0.2mg/L or ±2% of reading, whichever is greater |
| Percent Saturation Range (Polarographic DO) | 0.0 to 200.0 % saturation |
| Percent Saturation Relative Accuracy (Polarographic DO) | ±2 % saturation or ±2% of reading whichever is greater |
| Percent Saturation Resolution (Polarographic DO) | 0.1, 1 % saturation |
| Sensor Types | Polarographic dissolved oxygen sensor |
| Barometric Pressure Correction | 450 to 850mmHg, automatic with manual entry |
| Pressure Range | 450 to 850mmHg (manual entry) |
| Salinity Factor | 0 to 45 ppt, automatic correction using manual entry of sample salinity |
| Calibration Modes | Water-saturated air, manual (Winkler titration) |
| Range (Temperature) | 0.0 to 50.0 °C, 32.0 to 122.0 °F |
| Resolution (Temperature) | 0.1°C, 0.1°F |
| Accuracy (Temperature) | ±0.1°C |
| Temperature Selection | Automatic with ATC temperature probe |
| Temperature Probe Calibration | 1 point temperature offset calibration |
| Channels | 1 |
| Display Type | LCD |
| Keypad | Simple with highlighted measure key, scroll and shortcut keys |
| Measurement Modes | Dissolved oxygen as % saturation or mg/L with temperature |
| Stability | Smart Stability and Smart Averaging |
| Data Management Details | Internal data point memory |
| Data Points | 50 |
| Log Function Type | Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode |
| Memory | Non-volatile memory preserves log and settings |
| Languages | English |
| Inputs | 9 pin MiniDIN (polarographic DO sensor with built-in temperature) |
| Outputs | None |
| Probe Type | Polarographic dissolved oxygen probe (purchase separately) |
| Power Supply | 4 AA batteries (included) or universal AC adapter (sold separately) |
| AC Adapter | Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003) |
| Battery Life | 2000 hours |
| Battery Type | Four AA (included) |
| IP Rating | IP-67 |
| Certifications/Compliance | CE, TUV 3-1, FCC Class A |
| Operating Temperature | 41° to 113°F (ambient) 5° to 45° C (ambient) |
| Relative Humidity Range | 5 to 85 %, non-condensing |
| Dimensions (L x W x H) | 24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.) |
| Weight | 2 lb. 0.5kg |
| Warranty | 3 year meter warranty |
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