Specifications
AC AdapterUniversal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
OutputsUSB, RS232
Accuracy (Barometer)±6mmHg
Accuracy (Conductivity)0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS
Accuracy (ISE)±0.2 mV or ±0.05% of reading whichever is greater
Accuracy (mV)±0.2 mV or ±0.05% of reading whichever is greater
Accuracy (pH)±0.002
Accuracy (Polarographic DO)±0.2mg/L or ±2% of reading, whichever is greater
Accuracy (RDO)±0.1mg/L up to 8mg/L, ±0.2mg/L from 8 to 20mg/L, ±10% of reading up to 50mg/L
Accuracy (Resistivity)0.5% of reading ±1 digit
Accuracy (Salinity)0.5% of reading ±1 digit
Accuracy (TDS)0.5% of reading ±1 digit
Advanced ISE FunctionsSegmented (point-to-point) slope, non-linear selectable auto-blank, low concentration range stabilit
Alarm OutputHigh/low limit alarm, calibration due alarm
Backlight OptionYes, selectable
Barometric Pressure Correction400 to 850mmHg, automatic using built-in barometer or manual entry
Battery Life800 hr.
Battery Type4 AA (included)
CalibrationpH with calibration editing option, ion concentration (ISE) with calibration editing option, relativ
Calibration ModesWater-saturated air, air-saturated water, manual (Winkler titration), zero point
Calibration Points1 point relative mV (RmV) mode, 1 point ORP mode
Calibration Points (Conductivity)Up to 5
Calibration Points (ISE)1 to 5
Calibration Points (pH)1 to 5
Cell Constant0.001 to 199.9cm-1
Certifications/ComplianceCE, TUV 3-1, FCC Class A
Data Management DetailsTransfer single, range or all data points to printer or computer
Data Points5000 with date and time stamp
DescriptionOrion Star A329 pH/ISE/conductivity/RDO/DO portable meter
Channels3
Display TypeLCD Graphic, Backlit
IP RatingIP 67
Measurement ModespH, mV, Relative mV, TDS, ORP with Temperature, Salinity, Conductivity, Resistivity with Temperature
Percent Saturation Range Polarographic DO0.0 to 600.0 % saturation
Range (Conductivity)0.001 μS/cm to 3000 mS/cm
Range (mV)±2000.0 mV
Range (pH)-2.000 to 20.000
Range (Resistivity)2 ohm to 100.0 meg-ohm
Range (Salinity)0.06 to 80.00 psu, 0.05 to 42.00 ppt
Range (TDS)0.001 ppm to 200.0 ppt
Resolution (ISE)0.0001 minimum, 1 to 3 significant digits (user selectable)
Resolution (pH)0.1/0.01/0.001
Temperature Range (Metric)-5.0°C to +105.0°C
IncludesStar A329 pH/ISE/conductivity/RDO/DO meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate
InputsBNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (conductivity sensor with built-in temperature or ATC temperature probe), 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature)
Isopotential Point7.000pH
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 data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
MemoryNon-volatile memory preserves data log, calibration log and meter settings
Methods10 per channel with password protection
ModelOrion Star A329 pH/ISE/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/RDO Optical/Dissolved Oxygen/Temperature Portable Meter
Percent Saturation Range (Polarographic DO)0.0 to 600.0 % saturation
Percent Saturation Relative Accuracy (RDO)±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
Percent Saturation Resolution (Polarographic DO)0.1, 1 % saturation
Percent Saturation Range (RDO)0.0 to 500.0 % saturation
Percent Saturation Relative Accuracy (Polarographic DO)±2 % saturation or ±2% of reading whichever is greater
Percent Saturation Resolution (RDO)0.1, 1 % saturation
Power Supply4 AA batteries (included) or universal AC adapter (sold separately)
Pressure Range400 to 850mmHg
Pressure Resolution1mmHg
Range (ISE)0.0001 to 19900 with selectable units of ppm, Molar, mg/L, %, ppb or none
Range (ORP)±2000.0 mV
Range (Polarographic DO)0.00 to 90.00mg/L
Range (RDO)0.00 to 50.00mg/L
Range (Relative mV)±2000.0 mV
Relative Humidity Range5 to 85 %, non-condensing
Resolution (Conductivity)0.001 μS minimum, auto ranging up to 4 significant digits
Resolution (mV)0.1mV
Resolution (Polarographic DO)0.01, 0.1mg/L
Resolution (RDO)0.01, 0.1mg/L
Resolution (Resistivity)1 ohm or 0.1 meg-ohm, 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
Salinity Factor0.0 to 45.0 ppt, automatic correction using conductivity reading or manual entry of sample salinity
Salinity Measurement ModesPractical salinity (psu) or natural sea water (ppt)
StabilitySelectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
TDS Factor RangeLinear (0.02 to 9.99)
Temperature Accuracy±0.1°C
Temperature CompensationLinear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off
Temperature (English) Operating41°F to 113°F (ambient)
Temperature (Metric) Operating5°C to 45°C (ambient)
Temperature (Metric) Reference5, 10, 15, 20, 25°C
Temperature Probe Calibration1 point temperature offset calibration
Temperature Range (English)22.0°F to 221.0° F
Temperature Resolution0.1°C, 0.1°F
Temperature SelectionManual or automatic with ATC temperature probe
Warranty3 Year Meter
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)0.5 kg
Unit SizeEach