Thermo Scientific™ Orion Star™ A123 Dissolved Oxygen Portable Meter

Take simple dissolved oxygen and temperature measurements with this portable meter with easy operation for basic field testing.

Take simple, routine dissolved oxygen and temperature measurements with the Thermo Scientific™ Orion Star™ A123 Dissolved Oxygen Portable Meter. This instrument is easy-to-use and budget-friendly, designed for basic dissolved oxygen analysis in the field. Calibrate polarographic DO probes using water-saturated air or custom value using Winkler titration. Quickly navigate setup menus and ensure consistent calibrations using the simple keypad layout and on-screen text prompts. Use the included electrode stand to easily place sensors in samples and simplify storage.

Thermo Scientific Orion Star A123 dissolved oxygen portable meters are a simple, economical solution for your routine outdoor sample analysis. Featuring an emphasized measure key, selectable read modes and measurement stability indicator, our basic Orion Star A123 dissolved oxygen meters are designed to deliver measurements you can trust at an affordable price.

• Measure dissolved oxygen in percent saturation or mg/L with temperature using polarographic DO probes
• Calibrate using water-saturated air or custom value (Winkler titration)
• Automatically compensate DO readings using ATC temperature, manual salinity input and manual barometric pressure
• Simplified, easy-to-read display shows main measurement with temperature, stability indicator and electrode condition icon
• User-friendly operation with basic calibration text prompts
• Easily recall calibration data for procedure checks
• Non-volatile memory preserves 50 point internal data log and meter settings, even with loss of power
• 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 and 3-year replacement warranty

Description

Orion Star A123 dissolved oxygen portable meter

Outputs

None

Barometric Pressure Correction

450 to 850mmHg, automatic with manual entry

Includes

Star A123 DO meter, 4 AA batteries, literature CD, printed quick start guide and meter test certificate

Measurement Modes

Dissolved Oxygen (% Saturation), Dissolved Oxygen (mg/L with Temperature)

Sensor Types

Polarographic dissolved oxygen sensor

Range (Polarographic DO)

0.00 to 20.00 mg/L

Percent Saturation Range (Polarographic DO)

0.0 to 200.0 % saturation

Resolution (Polarographic DO)

0.01, 0.1mg/L

Accuracy (Polarographic DO)

±0.2mg/L or ±2% of reading, whichever is greater

Pressure Range

450 to 850mmHg (manual entry)

Calibration Modes

Water-saturated air, manual (Winkler titration)

Temperature (Metric) Range

0.0°C to 50.0°C

Resolution (Temperature)

0.1°C (0.1°F)

Accuracy (Temperature)

±0.1°C

Temperature Selection

Automatic with ATC temperature probe

Temperature Probe Calibration

1 point temperature offset calibration

Display Type

LCD

Memory

Non-volatile memory preserves log and settings

Data Points

50

Log Function Type

Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode

Data Management Details

Internal data point memory

Inputs

9 pin MiniDIN (polarographic DO sensor with built-in temperature)

Certifications/Compliance

CE, TUV 3-1, FCC Class A

IP Rating

IP-67

AC Adapter

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

Dimensions (L x W x H)

24 cm x 10 cm x 6.5 cm (9.5 in. x 3.9 in. x 2.6 in.)

Weight (Metric)

0.5 kg

Weight (English)

2 lb.

Relative Humidity Range

5 to 85 %, non-condensing

Warranty

3 Year Meter Warranty

Percent Saturation Range Polarographic DO

0.0 to 200.0 % saturation

Keypad

Simple with highlighted measure key, scroll and shortcut keys

Languages

English

Model

Orion Star A123 Dissolved Oxygen/Temperature Portable Meter

Percent Saturation Resolution (Polarographic DO)

0.1, 1 % saturation

Percent Saturation Relative Accuracy (Polarographic DO)

±2 % saturation or ±2% of reading whichever is greater

Power Supply

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

Probe Type

Polarographic dissolved oxygen probe (purchase separately)

Channels

1

Salinity Factor

0 to 45 ppt, automatic correction using manual entry of sample salinity

Stability

Smart Stability and Smart Averaging

Temperature (English) Operating

41°F to 113°F (ambient)

Temperature (Metric) Operating

5°C to 45°C (ambient)

Battery Life

2000 hours

Battery Type

Four AA (included)