모델명

HI 4222

Range

pH

-2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 pH

Resolution

0.1 pH; 0.01 pH; 0.001 pH

Accuracy

±0.1 pH; ±0.01 pH; ±0.002 pH

Range

mV

±2000 mV

Resolution

0.1 mV

Accuracy

±0.2 mV

Range

ISE

1 x 10 -7 to 9.99 x 10 10 concentration

Resolution

1; 0.1; 0.01 concentration

Accuracy

±0.5% (monovalent ions); ±1%

Range

Temp

-20.0 to 120°C; -4.0 to 248.0°F; 253.15 to 393.15K

Resolution

0.1°C; 0.1°F; 0.1K

Accuracy

±0.2°C; ±0.4°F; ±0.2K

Calibration

pH

Automatic up to 5 points with 8 memorized values (pH 1.68, 3.00, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) + 5 custom buffers

ISE

Automatic, up to 5 points with 6 standard + 5 custom values

Temp

3 points

Relative mV Offset Range

±2000 mV

Input Channel(s)

2 pH/mV/ISE

Calibration Check

pH electrode and buffer condition

Temperature Compensation

pH

Automatic or manual from -20.0 to 120.0°C (-4.0 to 248.0°F)

Log on Demand

10 Lots, 5000 samples per lot

Auto Endpoint

Yes

PC Connection

Opto-isolated USB and RS232

Display

240 x 320 dot-matrix color LCD with on-screen help, graphing, language selection and custom configuration

Power

12 VDC adapter (included)

Dimensions

159 x 230 x 93 mm (6.3 x 9.1 x 3.7")

Weight

800 g (1.8 lb.)