อุปกรณ์วัด pH (pH Meter for Education)

HI 207

pH Meter for Education

With features such as a built-in beaker holder, beaker-top electrode holder and rugged, 2-in-1 pH and temperature sensor, the HI 207 is designed to meet busy classroom environments.

This instrument also features an extended pH range, dual-level LCD with icons for stability and buffer recognition, automatic pH calibration, and temperature display in either Celsius or Fahrenheit. In addition, all readings are automatically compensated for temperature variations.

In the classroom, this compact unit reduces clutter and utilizes a minimal amount of space on the desktop. Switch to battery power and the instrument can be taken outside the classroom for field studies. When lab time is over, the meter is easily cleaned and can be placed out of the way—right away.

(*) The temperature range is limited to 80 °C (176 °F) if using the HI 1291D probe.

Specifications 
Range pH -2.00 to 16.00 pH
Temperature -5.0 to 105.0°C or 23.0 to 221.0°F
Resolution pH 0.01 pH
Temperature 0.1°C or 0.1°F
Accuracy pH ±0.02 pH
Temperature ±0.5 (up to 60°C); ±1°C (outside)
±1°F (up to 140°F); ±2°F (outside)
Calibration pH Automatic 1 or 2 points with 2 sets of memorized buffers (4.01, 7.01, 10.01 or 4.01, 6.86, 9.18)
Temperature
Compensation  Automatic
pH Electrode  HI 1291D with built-in temperature probe (included)
Power Supply  12 VDC adapter (included)
Battery Type / Life  9V / approximately 500 hours of continuous use
Environment  0 to 50°C (32 to 122°F) 95% RH
Dimensions  192 x 104 x 134 mm (7.5 x 4.1 x 5.3’’)
Weight  420 g (14.8 oz.)

Accessories
Solutions
HI 5004L  pH 4.01 buffer solution
HI 5007L  pH 7.01 buffer solution
HI 5010L  pH 10.01 buffer solution
HI 7061L  General Purpose Cleaning Solution
1 x 500 mL bottle
HI 70300L  Electrode Storage Solution
1 x 500 mL bottle
Accessories
HI 740036P  Plastic Beaker Set, 100 mL
HI 731316  Magnetic Stir Bars for Mini Titrators & HI 208