Thermo Scientific™ Orion™ Versa Star Pro™ pH/ISE/Conductivity/Dissolved Oxygen Multiparameter Benchtop Meter

Get premium performance and flexibility with the Thermo Scientific™ Orion™ Versa Star Pro™ Meter with pH / ISE, Conductivity and RDO / DO Modules to measure up to 4 channels at once

Manufacturer: Thermo Scientific™ VSTAR92

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Catalog No. 13-645-588

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    Description Orion Versa Star Pro Benchtop Meter with VSTAR-ISE pH/mV/ISE/Temperature Module; VSTAR-CND Conductivity/TDS/Resistivity/Salinity/Temperature Module; VSTAR-RD RDO/DO/Temperature Module Kit
    Model Orion Versa Star Pro 90 pH/ISE/mV/RmV/ORP/Conductivity/TDS/Salinity/Resistivity/RDO Optical/Dissolved Oxygen/Temperature Benchtop Meter
    Includes Versa Star Pro meter, VSTAR-ISE pH/ISE module, VSTAR-CND conductivity module, VSTAR-RD RDO/DO module, 8157BNUMD ROSS Ultra Triode epoxy-body pH/ATC electrode, 013005MD Orion DuraProbe 4-cell (K=0.475) conductivity sensor, 083005MD Orion polarographic dissolved oxygen sensor, 096019 Orion Star stirrer probe, 810199 ROSS pH buffer and solution kit, 011007 Orion 1413µS conductivity standard, 080513 DO maintenance kit, BOD adapter/funnel/stirrer, electrode stand, universal power adapter, literature CD, printed quick start guide, computer interface cable and meter test certificate
    Warranty 3 year meter and module warranty
    Accuracy (ISE) ±0.2 mV or ±0.05% of reading whichever is greater
    Isopotential Point 7.000pH (adjustable), 1.000 ISE (adjustable)
    Accuracy (Resistivity) 0.5% of reading ±1 digit
    Temperature Compensation Linear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off with warning) or off
    Temperature (Metric) Reference 5, 10, 15, 20, 25°C
    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
    Salinity Factor 0.0 to 45.0 ppt, automatic correction using conductivity reading or manual entry of sample salinity
    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
    Calibration Modes Water-saturated air, air-saturated water, manual (Winkler titration), zero point
    Temperature Probe Calibration 1 point temperature offset calibration
    Channels 4 - customizable with modules
    Keypad Numeric with menu-specific function keys and dual purpose scroll/shortcut keys
    Log Function Type Automatic data logging with Auto-Read, Timed and Single Shot measure modes; manual data logging with Continuous measure mode
    Memory Non-volatile memory preserves data log, calibration log and meter settings
    Power Supply Universal AC adapter (included)
    AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. STARA-PWR)
    IP Rating IP-54
    Relative Humidity Range 5 to 85 %, non-condensing
    Dimensions (L x W x H) 28cm x 24cm x 10cm (11 in. x 9.5 in. x 3.9 in.), modules add ≤ 2cm (0.8 in.) L & H
    Weight (Metric) 1.2kg, modules add 0.2kg each
    Weight (English) 2.5 lb., modules add 0.5 lb. each
    Accuracy (Conductivity) 0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS
    Accuracy (TDS) 0.5% of reading ±1 digit
    Accuracy (Salinity) 0.5% of reading ±1 digit
    Cell Constant 0.001 to 199.9cm-1
    Percent Saturation Resolution (Polarographic DO) 0.1, 1 % saturation
    Percent Saturation Range (RDO) 0.0 to 500.0 % saturation
    Percent Saturation Resolution (RDO) 0.1, 1 % saturation
    Percent Saturation Relative Accuracy (RDO) ±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
    Barometric Pressure Correction 400 to 850mmHg, automatic using built-in barometer or manual entry
    Pressure Range 400 to 850mmHg
    Pressure Resolution 0.1mmHg
    Accuracy (Barometer) ±6mmHg
    Temperature Selection Manual or automatic with ATC temperature probe
    Backlight Option Yes
    Measurement Modes pH, mV, relative mV (RmV), ORP or ion concentration (ISE) with temperature; conductivity, TDS, salinity or resistivity with temperature; dissolved oxygen as % saturation or mg/L with temperature and barometric pressure
    Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
    Data Management Details Transfer single, range or all data points to printer or computer
    Alarm Output Set point alarm, high/low limit alarm, calibration due alarm
    Methods 10 per channel with password protection
    Languages English, Spanish, French, Italian, German, Chinese, Portuguese and Korean
    Range (Relative mV) ±2000.0mV
    Temperature (English) Operating 41° to 113°F (ambient)
    Temperature (Metric) Operating 5° to 45° C (ambient)
    Range (ORP) ±2000.0mV
    Range (pH) -2.000 to 20.000pH
    Accuracy (mV) ±0.2 mV or ±0.05% of reading whichever is greater
    Resolution (Resistivity) 1 ohm or 0.1 meg-ohm, auto ranging
    Accuracy (pH) ±0.002pH
    Display Type Color graphic LCD with user-customizable options
    Inputs BNC (pH or ISE), 8-pin Mini-DIN (temperature), reference pin-tip, 8-pin Mini-DIN (conductivity with temperature probe), 9-pin Mini-DIN (RDO or polarographic DO with temperature probe), 2 stirrer inputs
    Resolution (mV) 0.1mV
    TDS Factor Range Linear (0.02 to 9.99)
    Range (Resistivity) 2 ohm to 100.0 meg-ohm
    Data Points 2000 with date and time stamp
    Outputs USB (2), RS232
    Range (ISE) 0.0001 to 19990 with selectable units of ppm, Molar, mg/L, %, ppb or none
    Resolution (ISE) 0.0001 minimum, 1 to 4 significant digits (user selectable)
    Advanced ISE Functions Timed endpoint, linear point to point, non-linear selectable auto-blank, low concentration range stability, incremental techniques including single known addition and subtraction, double known addition and subtraction, single analyte addition and subtraction
    Range (Conductivity) 0.001 µS/cm to 3000 mS/cm
    Resolution (Conductivity) 0.001 μS minimum, auto ranging up to 4 significant digits
    Range (TDS) 0.001 to 200.0 ppm
    Resolution (Salinity) 0.01 psu or 0.01 ppt minimum, auto ranging
    Salinity Measurement Modes Practical salinity (psu) or natural sea water (ppt)
    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
    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
    Resolution (pH) 0.1, 0.01, 0.001pH
    Calibration Points (ISE) 1 to 6
    Calibration Points (Conductivity) Up to 6
    Resolution (Temperature) 0.1°C, 0.1°F
    Accuracy (Temperature) ±0.1°C
    Range (mV) ±2000.0mV
    Certifications/Compliance CE, TUV 3-1, FCC Class A
    Resolution (TDS) 0.001 ppm minimum, auto ranging up to 4 significant digits
    Range (Salinity) 0.06 to 80.00 psu, 0.05 to 42.00 ppt
    Range (RDO) 0.00 to 50.00mg/L
    Calibration Points (pH) 1 to 6
    Range (Temperature) -5.0° to 105.0° C, 22.0° to 221.0° F

    Get high accuracy, premium performance and ultimate flexibility with the Thermo Scientific™ Orion™ Versa Star Pro™ Benchtop Meter with pH / ISE, Conductivity and Dissolved Oxygen / RDO Modules. Meet your most challenging applications for pH, ion concentration, conductivity, dissolved oxygen and temperature. Easily view measurements on the stunning color display and customize the four meter channels with interchangeable modules. Log up to 2000 data point sets with time / date stamp and easily transfer logs via USB or RS232 to a printer or computer. Select systems with one or two pH / ISE modules.

    Large, color graphic LCD display:

    • Informative display shows readings, connections, time, date, sample ID, user ID and calibration information.
    • Five modules customize the four channels as needed.
    • Display includes plain language screen prompts and soft keys that update for easy selection.
    • Multilanguage interface supports English, Spanish, French, Italian, German and Chinese.


    • Nonvolatile memory holds up to 2,000 data points with time and date stamp
    • Two USB and RS232 ports allow easy data transfer and meter software updates
    • Data analysis software transfers stored results or displays readings in real time
    • Direct control of two Orion Star stirrer probes (096019, sold separately) allows you to mix samples without a stir plate
    • Electrode arm and newly designed probe holder make it easier to maintain and place probes into samples
    • Universal power adapter works with almost every AC power source
    • IP54-rated housing handles splashes


    • pH, concentration using ISE, mV, relative mV (RmV) or ORP with temperature measurements
    • Up to six-point pH and ISE calibrations with editing to correct individual points without a full recalibration
    • Advanced ISE features including incremental techniques, timed end point, linear or point-to-point, non-linear selectable auto-blank, low-concentration range stability and ISE ID

    VERSA STAR Conductivity Module, VSTAR-CND:

    • Conductivity, TDS, salinity or resistivity with temperature measurements
    • Selectable conductivity reference temperatures of 5, 10, 15, 20 or 25 °C with linear, non-linear nLFn, non-linear nLFu and EP curve options
    • Choice of practical salinity or natural sea water curves for salinity

    VERSA STAR Dissolved Oxygen/RDO Module, VSTAR-RD:

    • Dissolved oxygen as percent saturation or concentration with temperature measurements
    • Flexibility to use Orion polarographic or RDO optical dissolved oxygen probes with automatic meter recognition of the probe type
    • Calibration options for water-saturated air, air-saturated water, custom value using a Winkler titration or zero point
    • Compensates automatically for temperature and barometric pressure with option for automatic or manual salinity correction


    • VSTAR90 meter and VSTAR92 meter kit: VSTAR-ISE pH/ISE module, one VSTAR-CND conductivity module and one VSTAR-RD DO/RDO module
    • VSTAR91 meter and VSTAR93 meter kit: two VSTAR-ISE pH/ISE modules, one VSTAR-CND conductivity module and one VSTAR-RD DO/RDO module

  • Description & Specifications

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