The HI 9811-0 and HI 9811-5 are complete, versatile, rainproof portable combined meters designed with utmost precision and simplicity. Both models provide measurements for pH, EC and TDS ranges, which are easily selectable through a membrane keyboard on the front panel. Conductivity measurements are automatically compensated for tem- perature changes with a built-in temperature sensor. The temperature coefficient is fixed at 2%/°C. HI 9811-0 is a pH/EC/TDS meter designed for simplicity of use in taking pH, µS/cm and mg/L measurements. Suited for hydroponics, greenhouses, aquaculture, food and beverage industries.
The Hanna Instruments HI 9811-0 and HI 9811-5 are complete, versatile, and rain-proof portable combined meters designed for measuring pH, EC, and TDS. The HI 9811-5 model additionally offers temperature measurement in the °C scale. Conductivity measurements are automatically compensated for temperature changes with a built-in temperature sensor.
| TDS Range | 0 to 3000 mg/L |
|---|---|
| Temperature Range | 0 to 50°C (HI 9811-5 only) |
| pH Resolution | 0.1 |
| pH Accuracy | ±0.1 pH |
| Battery Type | 1x alkaline (IEC 6LR61) |
| Battery Life | approx. 150 hours |
| Dimensions | 165 x 78 x 45 mm |
The temperature coefficient is fixed at 2%/°C.
It should be recalibrated at least once a month.
The fixed conversion factor set to 0.5 means that 1 µS/cm is equal to 0.5 mg/L of TDS.