Hanna Instruments HI931, User Manual, Page: 155 / 218

A1-3
TECHNICAL
SPECIFICA
TIONS
A1. HI931. TECHNICAL SPECIFICATIONS
Analysis Type Standard Titration (Standardization, Fixed pH/ mV, Equivalence Point pH/ mV)
End Point Mode
Fixed mV
Fixed pH
mV Equivalence Point (1
st
or 2
nd
derivate)
pH Equivalence Point (1
st
or 2
nd
derivate)
Burette
Size 5 mL / 10 mL / 25 mL / 50 mL
Resolution 0.001 mL
Flow Rate 0.3 mL to 2 x Burette volume per minute
Accuracy
± 0.005 mL (5 mL Burette)
± 0.010 mL (10 mL Burette)
± 0.025 mL (25 mL Burette)
± 0.050 mL (50 mL Burette)
Stirrer
Range 200 to 2500 RPM
Resolution 100 RPM
mV
Range -2000.0 to 2000.0 mV
Resolution 0.1 mV
Accuracy ± 0.1 mV
Calibration Single point offset
pH
Range -2.000 to 20.000 pH
Resolution 0.1 / 0.01 / 0.001 pH
Accuracy ± 0.001 pH
Calibration Up to 5 points with standard or custom buffers
ISE
Range 1x10
-6
to 9.999x10
10
Resolution 1 / 0.1 / 0.01
Accuracy ± 0.001 pH
Calibration Up to 5 points
Temperature
Range
-5.0 to 105 °C
23.0 to 221.0 °F
268.2 to 378.2 K
Resolution 0.1 °C / 0.1 °F / 0.1 K
Accuracy ± 0.1 °C / ± 0.2 °F / ± 0.1 K
Data Storage
Methods up to 100 titration methods (standard and user)
Reports up to 100 titration and pH/mV/ISE reports