Orion Star™ A221 pH Portable Meter

General Details

Record accurate and reliable pH, mV, ORP and temperature measurements with the Thermo Scientific™ Orion™ Star A221 pH Portable Meter, ideal for a wide range of applications and advanced pH analysis in the field. Perform up to a five point pH calibration, log up to 1000 data point sets with time / date stamp and easily transfer calibration and data logs via USB or RS232 to a printer or computer with free downloadable Orion™ Star Com software. Waterproof meter ensures durable, rugged performance in outdoor environments with an IP67-rated housing.

Specification
Description Orion Star A221 pH portable meter
Model Orion Star A221 pH/mV/RmV/ORP/Temperature Portable Meter
Item Description Orion Star A221 pH portable meter
Includes Star A221 pH meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate
Range (pH) -2.000 to 20.000pH
Resolution (pH) 0.1, 0.01, 0.001pH
Accuracy (pH) ±0.002pH
Range (mV) ±2000.0mV
Range (Relative mV) ±2000.0mV
Range (ORP) ±2000.0mV
Resolution (mV) 0.1mV
Accuracy (mV) ±0.2 mV or ±0.05% of reading whichever is greater
Calibration pH, relative mV (RmV), ORP and temperature
Calibration Points (pH) 1 to 5
Calibration Points 1 point relative mV (RmV) mode, 1 point ORP mode
Isopotential Point 7.000pH
Range (Temperature) -5.0° to 105.0° C, 22.0° to 221.0° F
Resolution (Temperature) 0.1°C, 0.1°F
Accuracy (Temperature) ±0.1°C
Temperature Selection Manual or automatic with ATC temperature probe
Temperature Probe Calibration 1 point temperature offset calibration
Channels 1
Display Type Graphic LCD with backlight
Keypad Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Measurement Modes pH, mV, relative mV (RmV) or ORP with temperature
Stability Smart Stability and Smart Averaging
Data Management Details Transfer single, range or all data points to printer or computer
Data Points 1000 with date and time stamp
Log Function Type Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode
Memory Non-volatile memory preserves data log, calibration log and meter settings
Alarm Output Calibration due alarm (fixed 12 hour)
Methods 10 per channel with password protection
Languages English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Inputs BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe)
Outputs USB, RS232
Probe Type pH electrode, ORP electrode, reference half-cell electrode, ATC temperature probe (purchase separately)
Power Supply 4 AA batteries (included) or universal AC adapter (sold separately)
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Battery Life 800 hours
Battery Type Four AA (included)
IP Rating IP-67
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)
Relative Humidity Range 5 to 85 %, non-condensing
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
Backlight Option Yes, selectable
Warranty 3 year meter warranty
Features
Don’t leave your measurements to chance when analyzing samples outside the lab. Orion Star A221 pH portable meters are designed to offer the reliability you need in a user-friendly package for your dedicated pH testing needs. This waterproof portable meter displays critical data with your measurement including temperature, date and time, read type, measurement stability, active calibration info and power source status.
  • Measure pH, mV, relative mV or ORP with temperature
  • Perform up to a five point pH calibration using automatic buffer recognition of NIST or DIN buffer groups with choice to manually enter custom buffer values
  • 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 and Continuous shows changing readings with hold option
  • Data log collects and date/time stamps up to 1000 measurement sets
  • 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