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HI6000-4 Dissolved Oxygen module is designed to be used with the HI6000 Multiparameter Modular System for fresh and saltwater measurements of dissolved oxygen when used with the HI7641133 optical dissolved oxygen (opdo®) probe or the HI764833 polarographic dissolved oxygen probe.
The Oxygen Uptake Rate (OUR), Specific Oxygen Uptake Rate (SOUR), Oxygen Demand (BOD) methods guide the user through the procedures adhering to the standard method guidelines.
Concentration measurements are automatically compensated for barometric pressure, temperature, and salinity.
- OUR measurements determine the biological activity of a system in terms of oxygen consumption or respiration rate.
- SOUR measurements determine the oxygen consumption of a system.
- BOD measurements determine the oxygen uptake rate by microorganisms in a water sample over a period time.
Measurement
- Choice of Measurement Unit
- DO – %Sat, mg/L, ppm
- BOD – ppm, mg/L
- OUR – ppm, mg/L
- SOUR – ppm, mg/L
- Pressure – mmHg, mbar, kPa, inHg, psi, atm
- Reading modes: direct and direct/autohold; BOD, OUR, SOUR
Calibration
- One or two points automatic calibration at 100.0 % (8.26 mg/L) and 0.0 % (0.00 mg/L)
- One point manual calibration using a valued entered by the user
Specifications
| Specifications | HI6000 with HI6000-4 DO Module | |
| DO | Range* | 0,0 to 500,0 % saturation 0,00 to 90,00 mg/L (ppm) concentration |
| Resolution | 0,1 % saturation 0,01 mg/L (ppm) |
|
| Accuracy | Refer to probe used | |
| Calibration points |
One or two points at 100,0 % (8.26 mg/L) and 0.0 % (0.00 mg/L) | |
| Calibration type | Automatic Manual (user entered value in % saturation, mg/L, or ppm) |
|
| Barometric pressure |
Range | 450,0 to 850,0 mmHg 600,0 to 1133,2 mbar 60,00 to 113,32 kPa 17,72 to 33,46 inHg 8,702 to 16,436 psi 0,5921 to 1,1184 atm |
| Resolution | 0,1 mmHg 0,1 mBar 0,01 kPa 0,01 inHg 0,001 psi 0,0001 atm |
|
| Accuracy | ±3 mmHg within ±15 % from calibration point ±3 mmHg ±1 least significant digit |
|
| Compensation | Automatic (meter-integrated barometer) Manual |
|
| Temperature | Range* | -20,0 to 120,0 °C -4,0 to 248,0 °F 253,2 to 393,2 K |
| Resolution | 0,1 °C 0,1 °F 0,1 K |
|
| Accuracy | Refer to probe used | |
| Compensation | Automatic Manual |
|
| Calibration | Single point, adjustable | |
| Salinity compensation | Manual 0,00 to 45,00 PSU or g/L (ppt) 0,0 to 130,0 % |
|
