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METER SPECIFICA
TIONS
2. METER SPECIFICATIONS
pH
Range
-2.0 to 20.0 pH / -2.00 to 20.00 pH / -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
mV
Range
±2000 mV
Resolution 0.1 mV
Accuracy
±0.2 mV
ISE
Range
From 1.00 E
-7
to 9.99 E
10
concentration
Resolution 3 digits 0.01, 0.1, 1, 10 concentration
Accuracy
±0.5% of reading (monovalent ions)
±1% of reading (divalent ions)
Temperature
-20.0 to 120.0 °C (-4.0 to 248.0 °F)
Rel mV Offset Range
±2000 mV
pH Calibration
Up to five point calibration using seven standards
(pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45), and five custom buffers
Slope Calibration
From 80 to 110%
ISE Calibration
Up to five point calibration points using six standard solutions
(0.1, 1, 10, 100, 1000, 10000 ppm)
Temperature Compensation Manual or Automatic from -20.0 to 120.0 °C (-4.0 to 248.0 °F)
pH Electrode
HI72911B
pH & temperature
Logging Memory
300 records, log-on-demand (100 records per range)
Input Impedance
10¹² Ω
Battery Type/Life
1.5V AA batteries / approximately 200 hours of continuous use
without backlight (50 hours with backlight)
Auto Power Off
5, 10, 30, 60 minutes or disabled
PC Interface
Opto-isolated USB
Dimensions
185 x 93 x 35.2 mm (7.3 x 3.6 x 1.4”)
Weight
400 g (14.2 oz)
Environment
0 to 50 °C (32 to 122 °F) max. RH 100% IP67