Turb 550/555 » Shecey

Water Analysis

Laboratory & Field

Turb 550/555 : Laboratory Turbidity meter

measures from 0.0001 to 10,000 NTU

Turb 550/555
Laboratory Turbidity meter

Brand: WTW

Turb 550

Measuring range: 0.01 to 1,000 NTU with autoranging
Automatic 1-3 point calibration
Flow-through measurement

Turb 555

Measuring range: 0.0001 to 10,000 NTU with autoranging
Automatic 1-5 point calibration
Flow-through measurement
Values displayed in:
- NTU
- EBC
- FNU, FAU (Turb® 555 IR)
- Nephelos (Turb® 555)

Model	Turb® 550	Turb® 550 IR	Turb® 555	Turb® 555 IR
Measuring principles	Nephelometric		Nephelometric Ratio method Transmission
Light source	Tungsten lamp	IR-LED	Tungsten lamp	IR-LED
NTU FNU EBC Nephelos FAU	0 … 1000 – – – –	0 … 1000 0 … 1000 – – –	0 … 10000 – 0 … 2450 0 … 67000 –	0 … 10000 0 … 10000 0 … 2450 – 0 … 10000
Resolution	0.01 NTU from 0.00 … 9.99 0.1 NTU from 10.0 … 99.9 1 NTU from 100 … 1000		0.0001 NTU from 0.0001 … 9.9999 0.001 NTU from 10.000 … 99.999 0.01 NTU from 100.00 … 999.99 0.1 NTU from 1000.0 … 9999.9
Accuracy	±2% of value or ±0.01 NTU		0 … 1000 NTU: ±2% of value or ±0.01 NTU 1000 … 4000 NTU: ±5% of value 4000 … 10000 NTU: ±10% of value
Reproducibility	±1% of value or ±0.01 NTU
Calibration	Automatic 1…3 point calibration		Automatic 1…5 point calibration
Response time	< 3 seconds		< 6 seconds
Cuvettes	28 x 70 mm (1.1 x 2.76 in) round cuvette, 25 ml sample volume
AQA functions	Calibration interval monitoring Calibration protocol		Calibration interval monitoring Calibration protocol Password-protected access to calibration and configuration Time-controlled data transmission
Operating temperature	+10 … +40 °C (50 … 104 °F)		0 … +50 °C (32 … 122 °F)
Power supply	Plug-in power supply 100 – 240 VAC ±10% / 47 – 63 Hz