HANNA HI7640-1815 Galvanic Dissolved Oxygen Electrode (0.00 ~ 50.00 mg/L, 15m)

Galvanic Sensor

Smart probe, RS485 communication port

Cable length (m): 15

Measuring Range

0.0 to 500.0 % saturation

0.00 to 50.00 mg/L (ppm)

Resolution

0.01 mg/L (ppm)

0.1 % saturation

Accuracy

0.00 to 20.00 mg/L (ppm): ±2% of reading or ±0.2 mg/L (ppm), whichever is greater

20.00 to 50.00 mg/L (ppm): ±6% of reading

0.0 to 200.0% saturation: ±2% of reading or ±2.0%, whichever is greater

200.0 to 500.0% saturation: ±6% of reading

Calibration

1 or 2 points: at 100% and/or 0% saturation, or 8.26 mg/L and/or 0 mg/L in air-saturated water or zero oxygen solution

User-defined calibration point: by entering saturation % or mg/L value

Temperature Measurement

Range: -5.0 to 50.0°C (32.0 to 122.0°F)

Resolution: 0.1°C; 0.1°F

Accuracy: ±0.5°C / ±1.0°F

Temperature Compensation: Automatic

Temperature Calibration: Single-point offset

Compensation Parameters

Power source:

Automatic (from the probe)

Manual

Pressure compensation: Automatic, 420 to 850 mmHg

Salinity compensation: Automatic, 0 to 70 g/L (manual setting)

Material and Mechanical Specs

Sensor body material: PVDF

Sensor type: Galvanic cell

Cathode: Silver (Ag)

Anode: Zinc (Zn)

Diameter: 17 mm

Length: 30 mm

Maximum pressure: 3 bar

Threaded connection: 3/4" NPT at 25°C

Membrane cap material: PEI and PTFE

O-ring: Nitrile rubber (NPR)

Protection rating: IP68