Electro-Chemical Devices (ECD) L20 - Manual (Page 16)

Specifications
Display Range Resolution Accuracy
pH -2.00 to 16.00 pH 0.01 pH
± 0.1% FS
mV -1999 to 1999 mV 1 mV ± 0.1% FS
Temperature 0.0 to 100.0 °C 0.1 °C ± 0.5 °C
pH buffer recognition
pH 7.00, 4.01, 10.01 or pH 6.86, 4.00,
9.18
pH Temperature compensation AUTO/MAN –10.0°C to 120.0 °C
pH Buffer Temperature range
0°C to 60.0°C
pH Electrode Offset recognition ±90 mV at pH 7.00 or 6.86
pH Electrode Slope recognition
±30% at pH 4.00, 4.01, 9.18 and 10.01
Input Impedance 10 12 ohms
Power Four “AAA” Batteries
Battery Life ~1000 hours
Calibration Back-up EEPROM
Audio Feedback All Touch Keys
Display 11mm : 7mm high LCD
Ambient Temperature 0 to 50 °C
Relative Humidity up to 90%
Case IP67 watertight case
Dimensions 75mm x 157mm x 35mm
Weight 230 grams(Batteries included)
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