Chapter 8
|
Customer Services
Orion Star A222 Conductivity Portable Meter Specifications
Measurement Channels
1 – conductivity, salinity, TDS or resistivity with temperature
Conductivity
Range
0.001 μS to 3000 mS
Resolution
0.001 μS minimum, auto ranging, up to 4 significant digits
Relative Accuracy 0.5% of reading ±1 digit > 3 μS,
0.5% of reading ±0.01 μS ≤ 3 μS
Reference
Temperature
15 °C, 20 °C, 25 °C
Temperature
Compensation
Linear
(0 to 10.0%/ºC), nonlinear nLFn, off
Cell Constants
0.001 to 199.9 cm
-1
Calibration Points
Up to 5
Salinity
Range
0.06 to 80.00 psu
Resolution
0.01 psu minimum, auto ranging
Relative Accuracy 0.5% of reading ±1 digit
Type
Practical salinity (psu)
TDS
Range
0.001 to 200.0 ppm
Resolution
0.001 ppm minimum, auto ranging, up to 4 significant digits
Relative Accuracy 0.5% of reading ±1 digit
TDS Factor
Linear (0.02 to 9.99)
Resistivity
Range
2 Ω to 100 MΩ
Resolution
1 Ω or 0.1 MΩ, auto ranging
Relative Accuracy 0.5% of reading ±1 digit
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 built-in temperature sensor
Sensor Input 8 pin MiniDIN
Conductivity sensor with built-in temperature
Thermo Scientific
Orion Star A220 Series Portable Meter User Manual
|
85
Summary of Contents for Orion Star A220 Series
Page 5: ......
