Delta OHM HD2305, User Manual

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10. TECHNICAL CHARACTERISTICS
10.1 T
ECHNICAL INFORMATION ON THE
pH
METER
– T
HERMOMETER
Instrument
Dimensions (Length x Width x Height) 140x88x38mm
Weight 160g (complete with batteries)
Material ABS
Display
2x4½ digits plus symbols
Visible area: 52x42mm
Operating conditions
Operating temperature -5…50°C
Warehouse temperature -25…65°C
Working relative humidity 0…90%RH without condensation
Protection degree IP67
Power
Batteries 3 x 1.5V type AA batteries
Autonomy 200 hours with 1800mAh alkaline
batteries
Power absorbed with instrument off < 20
μ
A
Connections
Input module for the temperature probes 8-pole male DIN45326 connector
pH/mV input Female BNC
Unit of Measurement pH - mV
°C - °F;
Measurement of pH by Instrument
Measurement range -2.00…+19.999pH
Resolution 0.01
Accuracy
±
0.01pH
±
1digit
Input impedance >10
12
Ω
Calibration error @25°C |Offset| > 20mV
Slope < 50mV/pH or Slope > 63mV/pH
Sensitivity < 85% or Sensitivity > 106.5%
Measurement of mV by Instrument
Measurement range -1999.9…+1999.9mV
Resolution 0.1mV
Accuracy
±
0.1mV
±
1digit
Drift after 1 year 0.5mV/year
Measurement of temperature by Instrument
Pt100 measurement range -200…+650°C
Pt1000 measurement range -200…+650°C
Resolution 0.1°C
Accuracy
±
0.1°C
±
1digit