EUTECH INSTRUMENTS CD 650, Instruction Manual

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6. Technical Specifications
Temperature (pH and Conductivity)
Range -10.0 ºC to 110.0 ºC (14.0 ºF to 230.0 ºF)
Resolution 0.1 ºC/ 0.1 ºF
Relative Accuracy ± 0.5 ºC / ± 0.9 ºF
Temp. Input Connector 8-pin Round
Temperature (DO)
Range -10.0 ºC to 60.0 ºC (14.0 ºF to 140.0 ºF)
Resolution 0.1 ºC/ 0.1 ºF
Relative Accuracy ± 0.5 ºC / ± 0.9 ºF
Model
pH pH 600 pH 610 pH 620, PD 650,PCD 650
Range -2.00 to 20.0 pH -2.000 to 20.000 pH
Resolution 0.1/ 0.01 pH 0.1/0.01/0.001 pH
Relative Accuracy ± 0.01 pH + 1 LSD ± 0.002 pH + 1 LSD
No. of Calibration points 1 (offset) to 6 points
No. of Buffer Options 15
Calibration due alarm User configurable (up to 30 days)
Set point alarm User configurable
Auto buffer recognition Yes
pH buffer Groups & Calibration
Points
USA : 1.68, 4.01, 7.00, 10.01, 12.45
NIST: 1.68, 4.01, 6.86, 9.18, 12.45
DIN : 1.09, 3.06, 4.65, 6.79, 9.23, 12.74
PWB : 4.10, 6.97
USA
± 1.5 pH (for 7.00pH), ±1 pH (for all other buffers)
NIST ± 1.35 pH (for 6.86pH), ±1 pH (for all other buffers)
DIN
± 0.8 pH (for 1.09, 3.06, 4.65pH), ±1 pH (for 9.23, 12.74pH),
±1.34 pH (for 6.79pH)
Calibration
Window
PWB ± 0.8 pH
Custom buffer calibration Yes (2 to 5)
Slope/Offset display Yes (D Icon)
mV
Range ± 2000.0mV
Resolution 0.1 mV
Relative Accuracy ± 0.2 mV + 1 LSD
Ion
Range 0.001 to 19900
Units ppm, molar, mg/L
Resolution
2 or 3 digits
Relative Accuracy 0.5% FS (monovalent) 1% FS (divalent)