Why does my Hanna Instruments Measuring Instruments shut off?
The meter might be shutting off because the batteries are dead, or the auto-off feature is enabled. To solve this, replace the batteries or press the On/Off button to restart the meter.
What to do if Hanna Instruments Measuring Instruments meter fails to calibrate or gives faulty readings?
If your Hanna Instruments Measuring Instruments meter isn't calibrating or is giving incorrect readings, the probe might be broken. Replacing the probe should resolve this issue.
What to do if Hanna Instruments Measuring Instruments display shows DO reading blinking?
If the DO reading is blinking on your Hanna Instruments Measuring Instruments, it means the reading is out of range. You should recalibrate the meter and ensure the sample is within the measurable range.
What to do if by pressing On/Off Hanna Instruments Measuring Instruments don't starts or don't stops?
If your Hanna Instruments Measuring Instruments isn't responding to the On/Off button, it might be due to an initialization error. Try pressing and holding the On/Off key for about 15 seconds.
What does 'Cal Due' 'Prod' message at startup mean on Hanna Instruments Measuring Instruments?
This message on your Hanna Instruments Measuring Instruments indicates that the instrument hasn't been factory calibrated.
What to do if Hanna Instruments Measuring Instruments displays all LCD tags permanently at startup?
If your Hanna Instruments Measuring Instruments is showing all LCD tags at startup, it could be due to a blocked key. Check the keyboard.
What does 'Errxx' error message mean on Hanna Instruments Measuring Instruments?
If your Hanna Instruments Measuring Instruments displays an 'Errxx' error message and turns off, it indicates an internal error. Power the meter on again. If the error continues, it indicates an internal error.
Step-by-step guide for performing Dissolved Oxygen measurements.
Detailed steps for performing the zero-point calibration.
Detailed steps for performing the slope-point (100%) calibration.
General| Measurement Range (pH) | -2.00 to 16.00 pH |
|---|---|
| Measurement Range (Dissolved Oxygen) | 0.00 to 45.00 mg/L (ppm) |
| Resolution (pH) | 0.01 pH |
| Resolution (ORP) | 1 mV |
| Resolution (Dissolved Oxygen) | 0.01 mg/L (ppm) |
| Accuracy (pH) | ±0.01 pH |
| Accuracy (ORP) | ±1 mV |
| Temperature Compensation | Automatic, 0 to 50°C (32 to 122°F) |
| Display | LCD |
| Power Supply | 4 x 1.5V AA batteries |
| Type | Portable |
| Measurement Range (ORP) | ±2000 mV |
| Calibration (Dissolved Oxygen) | Automatic, 1 or 2 points |
| Weight | 300 g (0.66 lb) |
| Environment | 0 to 50 °C |
| Probe | HI76407 |
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