|
HI 4421 |
| Range |
Dissolved Oxygen |
0.00 to 90.00 ppm; 0.0 to 600.0% saturation |
| Barometric Pressure |
450 to 850 mmHg; 560 to 1133 mBar |
| Salinity Compensation |
0 to 45 ppt (g/L) |
| Temperature |
-20.0 to 120.0 °C; -4.0 to 248°F;
253.1 to 393.1 K |
| Resolution |
Dissolved Oxygen |
0.01 ppm; 0.1% saturation |
| Barometric Pressure |
1 mm Hg |
| Temperature |
0.1°C/°F/K |
| Accuracy |
Dissolved Oxygen |
±1.5% of reading ±1 digit |
| Barometric Pressure |
±3 mm Hg + 1 least significant digit |
| Temperature |
±0.2 °C/ K /°F |
| Measurement Modes |
Direct DO;
BOD (biochemical oxygen demand);
OUR (oxygen uptake rate);
SOUR (specific oxygen uptake rate) |
| Calibration |
DO |
Automatic / user standard;
1 or 2 points |
| Barometric Pressure |
Single point |
| Temperature Compensation |
0.0 to 50.0° C; 32.0 to 122.0°F;
237.1 to 323.1 K |
| Logging |
Record Samples |
Up to 100 lots;
10000 samples/lot for automatic logging;
5000 samples/lot for manual logging |
| Logging Interval |
from 1 second and up |
| PC Connection |
Opto-isolated USB and RS232 |
| Power Supply |
12 Vdc adapter (included) |
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