Specifications
AC AdapterUniversal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Accuracy (Conductivity)0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS
Accuracy (Resistivity)0.5% of reading ±1 digit
Accuracy (Salinity)0.5% of reading ±1 digit
Accuracy (TDS)0.5% of reading ±1 digit
Accuracy (Temperature)±0.1°C
Alarm OutputCalibration due alarm (fixed 12 hour)
Backlight OptionYes (Selectable)
Battery Life800 hr.
Battery Type4 x AA (included)
CalibrationConductivity and temperature
Calibration Points (Conductivity)5
Cell Constant0.001 to 199.9cm-1
Certifications/ComplianceCE, TUV 3-1, FCC Class A
Channels1
Compatible Probes2-cell or 4-cell conductivity sensors with built-in temperature
Data Management DetailsTransfer single, range or all data points to printer or computer
DescriptionOrion Star A222 conductivity/TDS/salinity/resistivity portable meter
Dimensions (L x W x H)24 x 10 x 6.5 cm (9.5 x 3.9 x 2.6 in.)
IncludesStar A222 conductivity meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate
Inputs8 pin MiniDIN (conductivity sensor with built-in temperature)
KeypadComprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
LanguagesEnglish, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Log Function TypeAutomatic with Auto-Read Measure Mode, Manual with Continuous Measure Mode
MemoryNon-volatile memory preserves data log, calibration log and meter settings
Methods10 per channel with password protection
ModelOrion Star A222 Conductivity/TDS/Salinity/Resistivity/Temperature Portable Meter
OutputsUSB, RS232
Power Supply4 AA batteries (included) or universal AC adapter (sold separately)
Probe TypeNot included
Relative Humidity Range5 to 85%, non-condensing
Resolution (Conductivity)0.001 μS minimum, auto ranging up to 4 significant digits
Resolution (Resistivity)1 ohm or 0.1 megohm, auto ranging
Resolution (Salinity)0.01 psu or 0.01 ppt minimum, auto ranging
Resolution (TDS)0.001 ppm minimum, auto ranging up to 4 significant digits
Resolution (Temperature)0.1°C (0.1°F)
Salinity Measurement ModesPractical salinity (psu)
StabilitySmart Stability and Smart Averaging
TDS Factor RangeLinear (0.02 to 9.99)
Temperature CompensationLinear, nLFn (non-linear ultra pure water) or off
Temperature (English) Operating41°F to 113°F (ambient)
Temperature (Metric) Operating5°C to 45°C (ambient)
Temperature (Metric) Reference15, 20, 25°C
Temperature Probe Calibration1 point temperature offset calibration
Temperature SelectionManual or automatic with ATC temperature probe
Warranty3 Year Meter
Weight (English)1.2 lb.
Weight (Metric)0.5 kg
Data Points1000 with Date and Time Stamp
Display TypeGraphic LCD with Backlight
IP RatingIP67
Measurement ModesConductivity, TDS, Salinity, Resistivity with Temperature
Range (Conductivity)0.001 μS/cm to 3000 mS/cm
Range (Resistivity)2 ohm to 100.0 megohm
Range (Salinity)0.06 to 80.00 psu, 0.05 to 42.00 ppt
Temperature Range (Metric)-5°C to +105°C
Unit SizeEach