Full specifications ▼

Description	Orion Star A223 RDO/DO portable meter
Warranty	3 year meter warranty
Model	Orion Star A223 RDO Optical/Dissolved Oxygen/Temperature Portable Meter
Item Description	Orion Star A223 RDO/DO portable meter
Includes	Star A223 RDO/DO meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate
Range (Polarographic DO)	0.00 to 90.00mg/L
Resolution (Polarographic DO)	0.01, 0.1mg/L
Accuracy (Polarographic DO)	±0.2mg/L or ±2% of reading, whichever is greater
Range (RDO)	0.00 to 50.00mg/L
Resolution (RDO)	0.01, 0.1mg/L
Accuracy (RDO)	±0.1mg/L up to 8mg/L, ±0.2mg/L from 8 to 20mg/L, ±10% of reading up to 50mg/L
Percent Saturation Range (Polarographic DO)	0.0 to 600.0 % 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	RDO optical dissolved oxygen sensor or polarographic dissolved oxygen sensor
Barometric Pressure Correction	400 to 850mmHg, automatic using built-in barometer or manual entry
Pressure Range	400 to 850mmHg
Pressure Resolution	1mmHg
Accuracy (Barometer)	±6mmHg
Salinity Factor	0.0 to 45.0 ppt, automatic correction using manual entry of sample salinity
Calibration Modes	Water-saturated air, air-saturated water, manual (Winkler titration), zero point
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	Graphic LCD with backlight
Backlight Option	Yes, selectable
Keypad	Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Measurement Modes	Dissolved oxygen as % saturation or mg/L with temperature and barometric pressure
Stability	Smart Stability and Smart Averaging
Data Management Details	Transfer single, range or all data points to printer or computer
Data Points	1000 with date and time stamp
Log Function Type	Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode
Memory	Non-volatile memory preserves data log, calibration log and meter settings
Alarm Output	Calibration due alarm (fixed 12 hour)
Methods	10 per channel with password protection
Languages	English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Inputs	9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature)
Outputs	USB, RS232
Probe Type	RDO optical dissolved oxygen probe, 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	800 hours
Battery Type	Four AA (included)
IP Rating	IP-67
Certifications/Compliance	CE, TUV 3-1, FCC Class A
Temperature (English) Operating	41° to 113°F (ambient)
Temperature (Metric) Operating	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 (English)	1.2 lb.
Weight (Metric)	0.5kg
Percent Saturation Range (RDO)	0.0 to 500.0 % saturation
Percent Saturation Relative Accuracy (RDO)	±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
Percent Saturation Resolution (RDO)	0.1, 1 % saturation
Unit Size	Each