HI-2640 benchtop meter enables fast, accurate measurements utilising the Hanna Instruments digital electrode / probe for HI-764080 dissolved oxygen. Each digital electrode / probe has a unique serial number and the parameter that it measures is automatically identified by the meter.
Once connected, the single sensor or sensors are ready to measure the parameter along with temperature. The HI-2640 measures dissolved oxygen in ppm and % saturation.
The intuitive design simplifies configuration, calibration, measurement.
The meter has a large display with capacitive keys which features a 5.5” (14 cm) LCD. The large display provides a 130 ° wide viewing angle.
Digital probe input - simply connect each probe via the 3.5 mm jack, Digital Smart Electrodes are automatically recognised.
Clear, full text readout - The HI-2640 presents clear, detailed text prompts at the bottom section of the screen.
Atmospheric pressure sensor - To make measurements the most accurate, the dissolved oxygen digital probe used with HI-2640 features an atmospheric pressure sensor for automatic pressure compensation.
GLP - The sensor retains data from the most recent calibration, including date, time, and standards utilised.
Capacitive touch keypad - HI-2640 features sensitive capacitive touch buttons for accurate keystrokes for navigating menus and screens. Since they are part of the screen, the buttons can never get clogged with sample residue.
Easy to read LCD - HI-2640 features a 5.5” (14 cm) LCD display that you can clearly view from over 5 m (16.4’). The large display, with its wide 130° viewing angle, provides one of the easiest to read LCDs in the industry.
| Specification | Detail |
| HI2640 and HI2641 | using the Dissolved Oxygen probe HI764080 |
| DO Range | 0.00 to 45.00 ppm (mg/L) 0.0 to 300.0% |
| DO Resolution | 0.01 ppm (mg/L) 0.1% |
| DO Accuracy at 25 °C / 77 °F | ±1.5% of reading ±1 digit |
| Temperature Range | -20.0 to 120.0 °C * (-4.0 to 248.0°F) |
| Temperature Resolution | 0.1 °C (0.1 °F) |
| Temperature Accuracy at 25 °C / 77 °F | ±0.5 °C (0.9 °F) |
| DO calibration | One or two points at 0% (HI7040) and 100% (water-saturated air) |
| DO Pressure compensation | Automatic 450.0 to 850.0 mmHg |
| DO Pressure compensation resolution | 0.1 mmHg |
| DO Salinity compensation | 0 to 40 g/L |
| DO Salinity compensation resolution | 1 g/L |
| Temperature compensation | 0.0 to 50.0 °C (32.0 to 122 °F) |
| Logging (HI2641 only) | Up to 1000 records organized in: Manual log-on-demand, maximum 200 logs Manual log-on-stability, maximum 200 logs Interval logging**, maximum 600 logs (100 lots) |
| Notes | * Temperature limits will be reduced to actual probe limits. ** When operating in Standard Mode only! |
| PC interface (HI2641 only) | USB-C |
| Power supply | USB Type C (5 VDC |
| Environment | 0 to 50 °C (32 to 122 °F) Maximum 95 % RH non-condensing |
| Dimensions | 205 x 160 x 77 mm (8.0 x 6.2 x 3.0 inches) |
| Weight | Approximately 0.85 kg (1.87 lbs.) |
Malaysia
