Chapter 8
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Customer Services
Orion Star A220 series Portable Meter Specifications
Calibration Log
10 calibrations with time and date stamp
Alarm
Calibration alarm (fixed 12 hour)
Computer Software
Orion Star Com data transfer software available free on website
Communication Ports
RS232, USB
Power Source
4 AA batteries (average 800 hours of battery life) or
optional universal AC power adapter, 90-260 VAC, 50-60 Hz
Multilanguage User Interface
English, Spanish, French, Italian, German and Chinese
Portuguese and Korean available with software update on web
Orion Star A221 pH Portable Meter Specifications
Measurement Channels
1 – pH, mV, relative mV (RmV) or ORP with temperature
pH
Range
- 2.000 to 20.000
Resolution
0.1 / 0.01 / 0.001
Relative Accuracy ±0.002
Calibration Points
Up to 5
Input Impedance
> 10^
12
ohms
Electrode Status
Onscreen indicator for good, fair or bad electrode status
mV / RmV
Range
±2000.0 mV
Resolution
0.1 mV
Relative Accuracy ±0.2 mV or ±0.05% of reading, whichever is greater
Relative mV Mode
Yes
E
H
ORP Mode
Yes
Temperature
Range
-5 to 105 °C, 22 to 221 °F
Resolution
0.1 °C, 0.1 °F
Relative Accuracy ±0.1 °C
Offset Calibration
1 point
Source Options
Manual or automatic with ATC probe
Sensor
Inputs
BNC
pH or ORP electrode
Pin Tip
Reference electrode
8 pin MiniDIN
ATC temperature probe
84
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Orion Star A220 Series Portable Meter User Manual
Thermo Scientific
Summary of Contents for Orion Star A220 Series
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