For the measurement of DO the HI98193 is supplied with the HI764073 polarographic dissolved oxygen probe. This probe uses preformed PTFE membrane caps that are field replaceable. The probe connects to the meter with a unique quick connect waterproof DIN connector allowing for a secure attachment without a threaded connect that is also easy to remove.
The HI98193 portable DO meter has extended ranges of up to 50 ppm and 600% saturation. When measuring dissolved oxygen, compensations for pressure, temperature and salinity are essential for an accurate reading.
Pressure compensation can be done automatically with the meter’s built-in barometer or by manual entry. Calibration of the built in barometer is done to one point by entering value of a reference barometer. Pressure is displayed in user-selectable units including mmHg, inHg, atm, psi, kPa, and mbar.
The HI764073 DO probe has a built in temperature sensor for automatic temperature compensation. The temperature sensor can be calibrated to one or two points. Manual entry of salinity values allows for the salinity compensation of dissolved oxygen readings in saline waters.
Other features include built in methods and calculations for the measurement of Biological Oxygen Demand (BOD), Oxygen Uptake Rate (OUR) and Specific Oxygen Uptake Rate (SOUR).
The compact, durable HI760193 carrying case is thermoformed to hold all necessary components for taking a field measurement, including the meter and electrode, beakers, buffer solutions, cleaning solutions and storage solutions.
DO Range 0.00 to 50.00 ppm (mg/L); 0.0 to 600.0% saturation
DO Resolution 0.01 ppm (mg/L); 0.1% saturation
DO Accuracy ±1.5% of reading ±1 digit
DO Calibration automatic one or two point at 100% saturation (8.26 mg/L) and 0% saturation (0 mg/L).
Atmospheric Pressure Range 450 to 850 mmHg
Atmospheric Pressure Resolution 1 mmHg
Atmospheric Pressure Accuracy ± 3 mmHg within ±15% from the calibration point
Atmospheric Pressure Calibration one point at any in range pressure value
Temperature Range -20.0 to 120.0°C (-4.0 to 248.0°F)
Temperature Resolution 0.1°C (0.1°F)
Temperature Accuracy ±0.2°C; ±0.4°F (excluding probe error)
Temperature Calibration one or two point at any in range temperature value
Temperature Compensation automatic from 0 to 50°C (32 to 122°F)
Measurement Modes direct DO; BOD (biochemical oxygen demand); OUR (oxygen uptake rate); SOUR (specific oxygen uptake rate)
Barometric Compensation automatic from 450 to 850 mmHg
Salinity Compenstaion automatic from 0 to 70 g/L
Electrode/Probe HI764073 polarographic DO probe with protective sleeve, internal temperature sensor, DIN connector and 4m (13’) or 10m (32') cable option will be provided.
Log-on-demand up to 400 samples
PC Connectivity opto-isolated USB with optional HI 92000 software and micro USB cable
|Range||0.00 to 50.00 ppm (mg/L); 0.0 to 600.0% saturation|
|Resolution||0.01 ppm (mg/L); 0.1% saturation|
|Accuracy||±1.5% of reading ±1 digit|
|Environment||0 to 50°C (32 to 122°F); RH 100% (IP67)|
|Battery Type||1.5V AA batteries (4) / approximately 200 hours of continuous use without backlight (50 hours with backlight)|
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