Digital Dissolved Oxygen Meter
Specifications :
| Measuring range |
Oxygen concentration (mg/L) |
0.0-40. 0 mg/L |
| Dissolved oxygen saturation (%) |
0.0-300. 0% |
| Temperature |
0-40°C; 32-104°F |
| Resolution |
Oxygen concentration (mg/L) |
0.1 mg/L |
| Dissolved oxygen saturation (%) |
0.1% |
| Temperature |
0, 1°C; 0.1°F |
| Accuracy |
Oxygen concentration (mg/L) |
±1.5% °F. S. |
| Dissolved oxygen saturation (%) |
±1.5%F. S. |
| Temperature |
±0.5℃ |
| Calibration mode |
support single-point or dual-point automatic calibration, namely zero point or automatic 100% calibration in the air |
| Response time |
≤45s (fast response at 20℃) |
| Temperature Compensation |
ATC (0-50℃) |
| Battery power |
low battery warning |
| Height compensation |
none |
| Shut down |
automatically shut down for about 15 minutes |
| Power supply mode |
3*1. 5V button battery (not included) |
| Use environment |
0-40℃ (32-104°F);RH max 90% |
| Dimensions and weight |
183*37*37mm (7.2*1.5*1.5in)/80g |
Product description:
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DO9100 is a precision meter for measuring dissolved oxygen and temperature. The built-in microcomputer processor can calculate and compensate all measurement data related to dissolved oxygen and temperature. The shell of this instrument is waterproof, and the waterproof grade: IP67
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This dissolved oxygen meter has two measurement units: % and mg/L.
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The dissolved oxygen probe is a film with a polarographic sensor and a thermistor for temperature measurement and temperature compensation. The permeable film separates the measured solution from the sensing electrode, but allows oxygen to pass through the film to react , The solubility can be measured.
Calibration:
One-point calibration or two-point calibration, any point calibration
One-point calibration: (satisfying normal use) 0.0% (oxygen-free water) or 100.0% (air).
Two-point calibration: 0.0% (oxygen-free water) and 100.0% (air) calibration at the same time
The instrument calibration is simple, make sure the probe is installed correctly before calibration:
1. 100.0%-After the value is stable in the air when the device is turned on, perform calibration. Press and hold the CAL. button for 5 seconds to release the button. The screen flashes 100.0%. After the flashing is completed, the calibration is completed.
2. 0.0%-After the value is stable in the anaerobic water under the power-on state, calibrate, press and hold the CAL. button for 5 seconds to release the button, the screen flashes 0.0%, the flashing is completed, the calibration is completed.
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