| Product name |
Dissolved Oxygen Meter |
| Model |
HD-480 |
| Measurement method |
Galvanic cell method |
| Measuring range |
Dissolved Oxygen 0 mg/L to 20 mg/L, 0.01 mg/L resolution
Saturation 0 % to 200 %, 1 % resolution |
| Temperature 0,µ to 40,µ , 0.1,µ resolution |
| Repeatability |
Within ±0.5 % of the full scale (by equivalent input) |
| Linearity |
Within ±0.5 % of the full scale (by equivalent input) |
| Transmission output |
4 mA to 20 mA DC, input / output isolated type
Maximum load resistance 900 Ω
Transmission output range: freely selectable within the measurement range |
| Contact output |
Outputs: 2 points
Alarm contact output (R1 and R2)
Contact type: relay contact, SPDT (1c)
Contact rating: 240 V AC, 3 A and 30 V DC, 3 A (resistance load)
Contact function: selectable from upper / lower limit operation (ON / OFF control), alarm, maintenance, and temperature |
| Calibration function |
Air calibration and solution calibration
Salinity compensation (0.0 % to 5.0 %)
Temperature calibration (two points) |