Model |
pHotoFlex® STD |
pHotoFlex® pH |
pHotoFlex® Turb |
Measuring parameters |
Photometry |
Photometry, pH |
Photometry, pH, Turbidity |
Light source |
LED |
LED |
LED |
Wavelengths (nm) |
436, 517, 557, 594, 610, 690 |
436, 517, 557, 594, 610, 690 |
436, 517, 557, 594, 610, 690 + 860 |
User-defined methods |
10 |
100 |
100 |
Methods/software update |
Via Internet |
Via Internet |
Via Internet |
Data storage |
100 data sets |
1000 data sets |
1000 data sets |
pH |
— |
0-16 |
0-16 |
Turbidity |
— |
— |
0-1100 NTU/FNU |
Accuracy: Photometry |
<2 nm wavelength accuracy,
0.005 abs. reproducibility |
<2 nm wavelength accuracy,
0.005 abs. reproducibility |
<2 nm wavelength accuracy,
0.005 abs. reproducibility |
Accuracy: Photometry |
— |
±0.01 pH |
±0.01 pH |
Accuracy: Turbidity |
— |
— |
0.01 NTU/FNU or ±2% of the measured value |
Calibration: pH / Turbidity |
— |
3 point |
3 point |
Interface |
RS 232, USB via adapter (optional) |
RS 232, USB via adapter (optional) |
RS 232, USB via adapter (optional) |
Battery |
Type AA batteries 4×1.5 V, for approx. 3000 measurements |
Type AA batteries 4×1.5 V, for approx. 3000 measurements |
Type AA batteries 4×1.5 V, for approx. 3000 measurements |
Rechargeable battery |
Optional: LabStation |
Optional: rechargeable battery or LabStation |
Optional: rechargeable battery or LabStation |