The measurement principle is based on the intense UV absorption of organic molecules at 254 nm according to the Lambert-Beer law:
[C] = k log (Iin / Iout)
[C]: concentration of the sample
k: extinction coefficient
Iin: sample input light intensity
Iout: light output sample intensity
Turbidity, organic substances, suspended solids or dirt in the measuring cell are automatically compensated by a differential measurement with a second detector with a different wavelength.
Conforms to AFNOR X PT 90-210 – DIN38404-C3 regulations.
Features
Applications
RANGE
0-200 mg/l
0-800 mg/l
0-2000 mg/l
0-5000 mg/l
0-20000 mg/l
Art.Nr. 201101
| Measuring principle | UV spectrophotometry |
|---|---|
| Analysis time | <10 seconds |
| Analysis frequency | Adjustable |
| Repeatability | ± 0.01 mg / l KMnO4 | ± 1.0 mg / l | ± 3.0 mg / l | ± 5.0 mg / l | ± 10.0 mg / l |
| Accuracy | 10% |
| Drift on zero | 5% |
| Drift full range | 10% |
| Interference in the presence of chlorides | no |
| Reagents or consumables | no |
| Alarms / Analog / serial output | 4 relays / 4-20 mA / RS232 |
| maintenance | Extremely limited |
| Filtration | Not necessary |
| self-cleaning | Integrated |
| Ambient temperature | > 0-50 ° C |
| Sample temperature | > 0-80 ° C |
| Datalogger | Integrated - data download via RS232 |
| Power supply | 110-130 Vac or 220-240 Vac / 30 VA / 50-60 Hz; 12-15 Vdc 3A |
| Operating costs | Extremely limited |
| Dimensions | 600mm x 420mm x 230mm |
| Weight | approx. 20 kg |
| Installation time | Few minutes |
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