Thermo Scientific™ Orion Star™ A329 pH/ISE/Conductivity/Dissolved Oxygen Portable Multiparameter Meter

Accurately measure pH, ion concentration, conductivity, dissolved oxygen and temperature with the Thermo Scientific™ Orion™ Star A329 pH/ISE/Conductivity/RDO/DO Portable Meter

Manufacturer: Thermo Scientific™ STARA3295

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Catalog No. 13-645-571

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    Warranty 3 year meter warranty
    Range (ISE) 0.0001 to 19900 with selectable units of ppm, Molar, mg/L, %, ppb or none
    Resolution (ISE) 0.0001 minimum, 1 to 3 significant digits (user selectable)
    Advanced ISE Functions Segmented (point-to-point) slope, non-linear selectable auto-blank, low concentration range stability
    TDS Factor Range Linear (0.02 to 9.99)
    Item Description Orion Star A329 pH/ISE/conductivity/RDO/DO portable meter kit with ROSS Ultra Triode low maintenance gel pH/ATC electrode, DuraProbe 4-cell conductivity sensor, RDO optical DO sensor, solutions, meter armor and field case
    Temperature (Metric) Reference 5, 10, 15, 20, 25°C
    Percent Saturation Range (Polarographic DO) 0.0 to 600.0 % 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 Relative Accuracy (RDO) ±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
    Percent Saturation Resolution (Polarographic DO) 0.1, 1 % saturation
    Percent Saturation Resolution (RDO) 0.1, 1 % saturation
    Barometric Pressure Correction 400 to 850mmHg, automatic using built-in barometer or manual entry
    Pressure Resolution 1mmHg
    Salinity Factor 0.0 to 45.0 ppt, automatic correction using conductivity reading or manual entry of sample salinity
    Calibration Points (Conductivity) Up to 5
    Calibration Modes Water-saturated air, air-saturated water, manual (Winkler titration), zero point
    Temperature Selection Manual or automatic with ATC temperature probe
    Temperature Probe Calibration 1 point temperature offset calibration
    Channels 3
    Backlight Option Yes, selectable
    Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
    Languages English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
    Power Supply 4 AA batteries (included) or universal AC adapter (sold separately)
    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
    Range (Relative mV) ±2000.0mV
    Methods 10 per channel with password protection
    Accuracy (ISE) ±0.2 mV or ±0.05% of reading whichever is greater
    Model Orion Star A329 pH/ISE/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/RDO Optical/Dissolved Oxygen/Temperature Portable Meter
    Salinity Measurement Modes Practical salinity (psu) or natural sea water (ppt)
    Temperature Compensation Linear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off
    Pressure Range 400 to 850mmHg
    Measurement Modes pH, mV, relative mV (RmV) or ORP with temperature; conductivity, TDS, salinity or resistivity with temperature; dissolved oxygen as % saturation or mg/L with temperature and barometric pressure
    Data Management Details Transfer single, range or all data points to printer or computer
    Memory Non-volatile memory preserves data log, calibration log and meter settings
    Alarm Output High/low limit alarm, calibration due alarm
    Range (ORP) ±2000.0mV
    Isopotential Point 7.000pH
    Accuracy (Barometer) ±6mmHg
    Keypad Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
    Description Orion Star A329 pH/ISE/conductivity/RDO/DO portable meter kit with ROSS Ultra Triode low maintenance gel pH/ATC electrode, DuraProbe 4-cell conductivity sensor, RDO optical DO sensor, solutions, meter armor and field case
    Accuracy (mV) ±0.2 mV or ±0.05% of reading whichever is greater
    Range (Salinity) 0.06 to 80.00 psu, 0.05 to 42.00 ppt
    Resolution (Salinity) 0.01 psu or 0.01 ppt minimum, auto ranging
    Resolution (Resistivity) 1 ohm or 0.1 meg-ohm, auto ranging
    Accuracy (Resistivity) 0.5% of reading ±1 digit
    Range (Polarographic DO) 0.00 to 90.00mg/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
    Range (pH) -2.000 to 20.000pH
    Calibration pH with calibration editing option, ion concentration (ISE) with calibration editing option, relative mV (RmV), ORP, conductivity with calibration editing option, dissolved oxygen and temperature
    Calibration Points 1 point relative mV (RmV) mode, 1 point ORP mode
    Range (Temperature) -5.0° to 105.0° C, 22.0° to 221.0° F
    Accuracy (Temperature) ±0.1°C
    Outputs USB, RS232
    Battery Life 800 hours
    Range (mV) ±2000.0mV
    Relative Humidity Range 5 to 85 %, non-condensing
    Calibration Points (pH) 1 to 5
    Resolution (mV) 0.1mV
    Range (Conductivity) 0.001 µS/cm to 3000 mS/cm
    Resolution (Conductivity) 0.001 μS minimum, auto ranging up to 4 significant digits
    Accuracy (Conductivity) 0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS
    Range (TDS) 0.001 to 200.0 ppm
    Resolution (TDS) 0.001 ppm minimum, auto ranging up to 4 significant digits
    Accuracy (Salinity) 0.5% of reading ±1 digit
    Resolution (Polarographic DO) 0.01, 0.1mg/L
    Resolution (RDO) 0.01, 0.1mg/L
    Includes Star A329 pH/ISE/Conductivity/RDO/DO Meter with Batteries; 8107UWMMD ROSS Gel-filled Epoxy pH/ATC Triode with 3 Meter Cable; 013010MD DuraProbe Epoxy 4-Probe (K=0.475) Conductivity Probe with 3 Meter Cable; 087010MD RDO Optical DO Probe with 3 Meter Cable
    Calibration Points (ISE) 1 to 5
    Resolution (Temperature) 0.1°C, 0.1°F
    Resolution (pH) 0.1, 0.01, 0.001pH
    Data Points 5000 with date and time stamp
    Log Function Type Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous measure mode
    Accuracy (pH) ±0.002pH
    Inputs BNC (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)
    AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
    Battery Type Four AA (included)
    IP Rating IP-67
    Accuracy (TDS) 0.5% of reading ±1 digit
    Range (Resistivity) 2 ohm to 100.0 meg-ohm
    Cell Constant 0.001 to 199.9cm-1
    Accuracy (Polarographic DO) ±0.2mg/L or ±2% of reading, whichever is greater
    Range (RDO) 0.00 to 50.00mg/L
    Display Type Graphic LCD with backlight
    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)

    Get high accuracy and premium performance everywhere you need it with the Thermo Scientific™ Orion™ Star A329 pH, ISE, Conductivity, DO and RDO Portable Meter, designed for a wide range of pH, ion concentration, conductivity, dissolved oxygen and temperature testing and field applications. Evaluate samples in the most demanding locations using this waterproof meter with IP67-rated housing. Use the three channels to measure pH, conductivity and DO simultaneously or view each channel separately. Log up to 5000 data point sets with time / date stamp and transfer to a printer or computer.

    Large, Backlit Informative Graphic LCD:

    • User can view each parameter individually, two parameters simultaneously or all three parameters on one screen; all options are shown with temperature.
    • Helpful icons are shown for electrode status, time, date, sample ID, user ID and calibration data.
    • Informative screen prompts guide meter setup and calibration procedures.
    • Menu-specific function keys automatically update to ensure easy meter navigation.
    • Multilanguage interface supports English, Spanish, French, Italian, German and Chinese.
    • Thermo Scientific™ AUTO-READ™ locks in a stable reading on the screen; ready indicator alerts when continuous readings are stable and timed reading gathers data in specific time intervals.

    pH, mV and ISE:

    • Up to five point pH calibration is offered with automatic recognition of USA/NIST™ and DIN buffers.
    • Up to five point ISE calibration with advanced features such as linear point-to-point, non-linear selectable auto-blank, and low-concentration range stability ensure accuracy whether ISE is done infrequently or with multiple samples every day.
    • Calibration editing allows pH and ISE calibration errors to be corrected without a complete recalibration.


    • Automatic conductivity measurement ranging based on sample conductance and calibrated cell constant for the ideal display resolution
    • Selectable reading reference temperatures of 5°, 10°, 15°, 20° or 25°C with linear, nonlinear, nLFu or EP curve options for advanced accuracy in conductivity readings
    • Choice of practical salinity or natural sea water curves for salinity readings

    Dissolved Oxygen:

    • Automatically recognizes Orion polarographic and RDO optical/luminescence-based probes—no need to worry about compatibility
    • Provides easy, accurate DO results with automatic temperature, automatic/manual barometric pressure, and automatic salinity compensation
    • Calibrates by water-saturated air, air-saturated water, manual using a Winkler Titration or zero point calibration

    Memory and Software:

    • Nonvolatile memory holds up to 5,000 data points with time and date stamp.
    • USB and RS232 ports and complimentary Orion Star Com data transfer software make data transfer to a computer fast and simple.

    Meter Includes:

    • Four AA batteries for more than 800 hours of operation, literature CD, printed quick start guide and USB computer cable
    • Three-year meter replacement warranty
    • Universal power adapter sold separately to use AC power (catalog number 1010003)

  • Description & Specifications

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