OD-Measurement

The compact infrared turbidity meter TB 211 IR is designed to allow fast, precise on-site testing. The unit measures the scattered light at an angle of 90°, as stipulated in EN ISO 7027. The wide measuring range from 0.01 to 1100 TE/F = NTU = FNU permits use of the unit for various media, ranging from drinking water to waste water.
As infrared light is used for measurement, the unit can be used to test both coloured and colourless liquids. The standards required for calibration of the unit are also supplied. A second adjustment mode allows alternative adjustment with user-defined turbidity standards.

• measuring ranges from 0.01 to 1100NTU (autorange)
• measurement with infrared light at an angle of 90°
• easy operation
• 600 tests between battery charges

Scope of supply: Turbidity meter, 4 turbidity standards <0.1, 20, 200 and 800NTU, battery, USB cable (1.5 m), test vial, manual, warranty statement, case

Specifications:
Measurement cycle:	approx. 9 seconds
Display / Function:	LCD
Optics:	temperature-compensated LED and photosensor amplifier in waterproof sample chamber
Keypad: Measuring range:	4 key polycarbonate membrane 0.01 to 1100NTU (autorange)
Resolution:	0.01 to 9.99NTU = 0.01NTU 10.0 to 99.9NTU = 0.1NTU 100 to 1100NTU = 1NTU
Accuracy:	±2.5 % of measuring value or ±0.01 NTU (0 to 500 NTU) ±5 % (500 to 1100NTU)
Interface: Housing: Dimensions (L x W x H):	Micro USB ABS 190 x 110 x 55mm
Weight (Basis unit):	approx. 0.4kg
Temperature:	0 to 40°C
Humidity (rel.):	30 to 90 % R.H.
CE-conformity:	DIN EN 50081-1, VDE 0839 part 81-1:1993-03, DIN EN 50082-2, VDE 0839 part 82-02:1996-02

Accessories Accessories for turbidity meter TB 211 IR Alternative Laboratory turbidimeter TB 300 IR