HANNA HI97710 pH, Free and Total Chlorine Portable Photometer with CAL Check

pH Range:6.5 to 8.5 pH

pH Resolution:0.1 pH

pH Accuracy:±0.1 pH @ 25 oC

pH Method:adaptation of Phenol Red method

Free Chlorine Range:0.00 to 5.00 mg/L (as Cl2)

Free Chlorine Resolution:0.01 mg/L

Free Chlorine Accuracy:±0.03 mg/L ±3% of reading

Total Chlorine Range:0.00 to 5.00 mg/L (as Cl2)

Total Chlorine Resolution:0.01 mg/L

Total Chlorine Accuracy:±0.03 mg/L ±3% of reading

Chlorine Methodadaptation of the EPA 330.5 DPD method

Photometer/Colorimeter Light SourceLight emitting diode

Photometer/Colorimeter Light Detectorsilicon photocell with narrow band interference filter @ 525 nm

Bandpass Filter Bandwidth8 nm

Bandpass Filter Wavelength Accuracy±1.0 nm

Cuvette Typeround, 24.6 mm diameter (22 mm inside)

GLPdate, time of last calibration

Display128 x 64 pixel B/W LCD with backlight

Logging Typeautomatic logging

Logging Memory50 measurement

Battery Type/Life:1.5V AA battery (3 pcs.) / > 800 measurements (without backlight)

Automatic Shut-Off:After 15 minutes of inactivity (30 minutes before a READ measurement)

Environment:0 to 50°C (32 to 122°F); relative humidity

Weight:380 g (13.4 oz.) with batteries

Dimensions:142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0")