The HI208 is a basic affordable pH benchtop meter ideal for educational purposes. Operation is simplified with automatic pH calibration and automatic temperature compensation. This meter also features a built-in 500 rpm magnetic stirrer, extended pH range, dual-level LCD with icons for stability and buffer recognition, and temperature display in either Celsius or Fahrenheit.
The HI208 can be calibrated to 1 or 2 points with a choice of two sets of preprogrammed buffers (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18). The HI208 also utilizes the HI1291D two-in-one pH and temperature probe which allows for automatic temperature compensation with accuracy of ±0.5°C (up to 60°C).
The compact design of the HI208, makes it ideal for educational use by reducing clutter and utilizing a minimal amount of space on the desktop. The option to switch to battery power also allows the meter to be taken outside the classroom for field studies.
Simple User Interface - Operation is simple with limited features that only require the use of a couple of buttons and readings are easy to view on the dual-level display.
Built-in Stir Bar - Integrated 500 rpm magnetic stirrer.
One or Two-Point Calibration - Automatic calibration can be performed at 1 or 2 points with a choice of two sets of preprogrammed buffers (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18).
HI1291D pH Electrode - The HI208 is supplied with the HI1291D PEI body, single junction, refillable pH electrode with an internal temperature sensor and DIN connector.
Temperature Compensation - The HI208 offers automatic temperature compensation of pH measurements over a wide range from -5.0 to 105.0°C.
Stability Indicator - The HI208 features a stability indicator. A clock icon appears on the display when there is instability in the reading. The clock icon disappears once the reading has stabilized. At that time a reading should be taken or stored.
pH Range -2.00 to 16.00 pH pH Resolution 0.01 pH pH Accuracy ±0.02 pH (@20ºC/68ºF) pH Calibration automatic, one or two point with two sets of memorized buffer values (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18) pH Temperature Compensation automatic from -5.0 to 105.0°C (23.0 to 221.0°F) Temperature Range -5.0 to 105.0°C / 23.0 to 221.0°F Temperature Resolution ±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside) Temperature Accuracy 0.1°C / 0.1°F Input Channels HI1291D PEI body pH electrode with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included) Built-in Magentic Stirrer Built-in magnetic stirrer at 500 rpm Battery Type/Life 9V / approximately 200 hours of continuous use (without stirrer) Power Supply 12 VDC adapter (included) Environment 0 to 50°C (32 to 122°F), RH max 95% Dimensions 192 x 104 x 134 mm (7.6 x 4.1 x x 5.3”) Weight 420 g (14.8 oz.) Ordering Information HI208-01 (115V), HI208-02 (230V), supplied with HI1291D pH electrode, HI740035 pH electrode holder and plastic beaker, rubber O-ring, magnetic stir bar, HI70004 pH 4.01 buffer solution sachet, HI70007 pH 7.01 buffer solution sachet, 12 VDC adapter, battery and instructions.