Thermo Scientific™ Orion Star™ A326 pH/Dissolved Oxygen Portable Multiparameter Meter

Accurately measure pH, dissolved oxygen and temperature with our pH/DO/RDO portable meter for high performance in challenging field tests.

Get high accuracy and premium performance everywhere you need it with the Thermo Scientific™ Orion Star™ A326 pH/Dissolved Oxygen Portable Multiparameter Meter. This meter is designed for a wide range of pH, mV, ORP, 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 two meter channels to measure pH and dissolved oxygen simultaneously or view each channel separately. Log up to 5000 data point sets with time/date stamp and easily transfer calibration and data logs via USB or RS232 to a printer or computer.

Take your measurements at the source with our premium line of portable meters. The Thermo Scientific Orion Star A326 pH/RDO/DO Portable Meter offers an information-rich screen and user-friendly operation. This rugged, waterproof portable meter is ready to tackle the elements with you. Orion Star A326 pH/RDO/DO Portable Meters are designed to be easy-to-use, dependable field meters that offer advanced features and functions including a 5000 point date log with sample ID and user ID options, calibration and high/low limit alarms and password-protected measurement methods.

• Combined convenience with the benefits of a pH meter and dissolved oxygen meter in one easy-to-use system
• Measure pH, mV, relative mV or ORP with temperature on channel one and measure dissolved oxygen in percent saturation or mg/L with temperature using RDO optical DO probes or polarographic DO probes on channel two
• Easily view individual measurements on a full screen display and quickly toggle to a split screen display to view multiple measurements simultaneously
• Perform up to a 5 point pH calibration using automatic buffer recognition of NIST or DIN buffer groups with choice to manually enter custom buffer values and calibration editing option that allows individual points to be fixed without a full recalibration
• Calibrate dissolved oxygen using water-saturated air, air-saturated water, custom value (Winkler titration) and zero point options
• Automatically compensate dissolved oxygen readings using ATC temperature, manual salinity input and built-in barometer for barometric pressure readings
• Informative, easy-to-read backlit graphic display with clear onscreen instructions simplifies operation
• Capture your critical readings with measurement stability indicator and selectable read modes — Auto-Read holds a stable reading, Continuous shows changing readings with hold option and Timed logs data at specific intervals
• Data log collects and date/time stamps up to 5,000 measurement sets with optional sample ID and user ID
• Calibration log stores 10 most recent calibrations
• Non-volatile meter memory ensures your data and settings are protected, even with loss of power
• Orion Star Com software facilitates data transfer to a computer via USB or RS232 connections
• Flexible power options with AA batteries or optional universal power adapter
• IP67-rated housing is waterproof for rugged field operation
• Meter kits include hard-sided field case and protective meter armor with electrode holders, adjustable wrist/belt strap and built-in meter stand
• Meters offer CE, TUV 3-in-1 and FCC Class A certifications
• 3-year replacement warranty

AC Adapter

Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)

Outputs

USB, RS232

Accuracy (Barometer)

±6mmHg

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

Alarm Output

High/low limit alarm, calibration due alarm

Backlight Option

Yes, selectable

Barometric Pressure Correction

400 to 850mmHg, automatic using built-in barometer or manual entry

Battery Life

800 hr.

Battery Type

4 AA (included)

Calibration

pH with calibration editing option, relative mV (RmV), ORP, dissolved oxygen and temperature

Calibration Modes

Water-saturated air, air-saturated water, manual (Winkler titration), zero point

Calibration Points

1 point relative mV (RmV) mode, 1 point ORP mode

Calibration Points (pH)

1 to 5

Certifications/Compliance

CE, TUV 3-1, FCC Class A

Data Management Details

Transfer single, range or all data points to printer or computer

Data Points

5000 with date and time stamp

Description

Orion Star A326 pH/RDO/DO portable meter

Channels

2

Display Type

LCD Graphic, Backlit

IP Rating

IP 67

Measurement Modes

pH, mV, Relative mV, ORP with Temperature, Dissolved Oxygen (% Saturation), Dissolved Oxygen (mg/L with Temperature)

Percent Saturation Range Polarographic DO

0.0 to 600.0 % saturation

Range (mV)

±2000.0 mV

Range (pH)

-2.000 to 20.000

Resolution (pH)

0.1/0.01/0.001

Temperature Range (Metric)

-5.0°C to +105.0°C

Includes

Star A326 pH/RDO/DO meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate

Inputs

BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe), 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature)

Isopotential Point

7.000pH

Keypad

Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys

Languages

English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update

Log Function Type

Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m

Memory

Non-volatile memory preserves data log, calibration log and meter settings

Methods

10 per channel with password protection

Model

Orion Star A326 pH/mV/RmV/ORP/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 Supply

4 AA batteries (included) or universal AC adapter (sold separately)

Pressure Range

400 to 850mmHg

Pressure Resolution

1mmHg

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 Range

5 to 85 %, non-condensing

Resolution (mV)

0.1mV

Resolution (Polarographic DO)

0.01, 0.1mg/L

Resolution (RDO)

0.01, 0.1mg/L

Salinity Factor

0.0 to 45.0 ppt, automatic correction using manual entry of sample salinity

Stability

Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting

Temperature Accuracy

±0.1°C

Temperature (English) Operating

41°F to 113°F (ambient)

Temperature (Metric) Operating

5°C to 45°C (ambient)

Temperature Probe Calibration

1 point temperature offset calibration

Temperature Range (English)

22.0°F to 221.0° F

Temperature Resolution

0.1°C, 0.1°F

Temperature Selection

Manual or automatic with ATC temperature probe

Warranty

3 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