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Thermo Scientific Orion

Star A216 pH/Dissolved Oxygen Benchtop Multiparameter Meter

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The Thermo Scientific Orion Star A216 pH/ RDO/Dissolved Oxygen Benchtop Meter is the ideal choice for any lab. Get the information you need quickly and easily from the large, backlit graphic LCD display. Informative display shows individual pH/mV/RmV result, dissolved oxygen in percent saturation or concentration results with temperature, or all results at once. Additional helpful information includes electrode status, time, date, sample ID, user ID and calibration. For advanced users, features such as stability and averaging choices provide additional options.

  • Anyone can use this meter with its plain language screen prompts, soft keys that update for easy selection and a multilanguage interface that supports English, Spanish, French, Italian, German and Chinese
  • Don't miss a reading – AUTO-READ* locks in the stable reading on your screen, ready indicator alerts when readings are stable and timed reading gathers data in specific time intervals
  • Up to five point pH calibration with automatic recognition for USA/NIST and DIN buffers and calibration editing to fix errors without a complete recalibration
  • No need to worry about DO probe compatibility – the meter accepts and automatically recognizes Orion polarographic and RDO optical/luminescence-based probes
  • Accurate DO results are easier with automatic temperature, manual salinity and automatic/ manual barometric pressure compensation
  • Calibrate DO by using water-saturated air, air-saturated water, a Winkler titration or zero point calibration
  • Non-volatile memory holds up to 2000 data points with time and date stamp
  • Easily transfer data and keep meter software up-to-date with the USB and RS232 ports and complimentary data analysis software
  • To mix samples without a stir plate or for faster BOD readings, meter can directly control the 096019 Orion Star stirrer or 086030MD Orion AUTO-STIR* DO probes (each sold separately)
  • Included electrode arm and newly-designed probe holder make it easier to maintain and place probes into samples
  • Works with almost every AC power source with the included universal power adapter, or use four AA batteries (sold separately) to run the meter on DC power
  • IP54-rated housing handles splashes and is wall-mountable if table space is a problem
  • Three year meter replacement manufacturer warranty

Certifications: CE, TUV, FCC Class A limits

pH Mode
Range-2.000 to 20.000
Resolution0.1, 0.01, 0.001
Relative Accuracy±0.002
Calibration Pointsup to 5
mV Mode
Relative Accuracy±0.2mV or ±0.05% of reading whichever is greater
Calibration Points1
Temperature Mode
Range23° to 221°F (-5° to 105°C)
Relative Accuracy±0.1
DO Mode
Relative AccuracyPolarographic: ±0.2mg/L; ±2%

RDO optical: ±0.1mg/L up to 8mg/L, ±0.2mg/L up
to 20mg/L, 10% of reading beyond; ±2%
CalibrationWater-saturated air, air-saturated water, manual (Winkler) and zero point
InputsBNC, reference pin, 8-pin mini-DIN, stirrer port
Data Management2000 points with date/time stamp
OutputRS-232, USB
DisplayGraphic LCD; simultaneous display of measurement, temperature, date/time, sample ID, user ID and more
Environmental Operating Conditions
3-year meter replacement

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Thomas No.
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Star A216 pH/RDO/DO BT Meter with Electrode Stand
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Thomas No.
Mfr. No.
Star A216 pH/RDO/DO BT Meter with Electrode Stand; 8157BNUMD ROSS Epoxy Refillable pH/ATC Triode; 083005MD Polarographic DO Probe with 1.5 Meter Cable and Calibration Sleeve; 810199 ROSS pH Buffer Kit (pH 4, 7, 10 Buffer, ROSS Storage and Cleaning Solutions, Electrode Storage Bottle); 080513 Probe Maintenance Kit; 970802 BOD Funnel and Stirrer; 080360 BOD Adapter
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