Description
Portable Dissolved Oxygen Meter
Features:
1. 1 or 2 points calibration using the air-saturated water or zero oxygen solution.
2. Salinity and barometric pressure compensations eliminate the measurement error.
3. Automatic temperature compensation ensures accurate readings over the entire range.
4. Auto-Read function senses and locks the measurement endpoint.
5. Auto-Power Off effectively conserves battery life.
6. Setup menu allows setting the number of calibration points, resolution, temperature unit, concentration unit, stability criteria, date and time, etc.
7. Reset function automatically resumes all settings back to the factory defaults.
8. Expanded memory stores or recalls up to 500 data sets.
9. USB communication interface for data transfer or connecting a power adapter to meter.
Accessories:
DO100 dissolved oxygen electrode, electrolyte solution, membrane cap and carrying case.
Technical Parameters:
Model
PH-820
PH-821
DO
Range
0.00~20.00mg/L, 0.0~200.0% saturation
Accuracy
±0.5mg/L, ±2.0%
±0.2mg/L, ±2.0%
Resolution
0.01mg/L, 0.1%
Other Specifications
Calibration Points
1 or 2 points
Temperature Compensation
0~50°C/32~122°F, automatic
Barometric Pressure Correction
60.0~112.5kPa/450~850mmHg, manual
Salinity Correction
0.0~50.0g/L, manual
Stability Criteria
/
Low or high
Calibration Due Alarm
/
1 to 31 days or off
Hold Function
Manual or auto-endpoint
Auto-Off
30 minutes after last key pressed
10, 20 or 30 minutes after last
key pressed
Memory
100 data sets
500 data sets
Communication Interface
USB
Connector
6-pin mini-DIN
Display
Custom LCD(80*60mm)
Power Requirements
3*1.5V AA batteries or DC5V power adapter
Dimensions(mm)
170*85*30mm
Weight(kg)
300g
Package Size(W*D*H)mm
475*155*350mm
Gross Weight(kg)
1.7kg












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