Turbidity Meters The compact AQUALYTIC® infrared turbidity measuring instruments AL255T-IR & AL250T-IR for fast and accurate on-site analysis. It is measured as provided in EN ISO 7027, the scattered light at an angle of 90 °. The wide measuring range from 0.01 to 1100 TE / F = NTU = FNU with a detection limit of 0.01 NTU allows the use of the device in different areas, from drinking water to wastewater. Since the measurements are made by means of infrared light, both colored and colorless water samples can be measured. A direct transfer of the measurement results to a PC is through the USB interface AL255T-IR easy to set up. The necessary USB cable is already part of the delivery. Accessories Article Code Measurement cycle approx. 8 seconds Display backlit LCD (on keypress) photosensor amplifier in water proof sample chamber, infrared light Keypad polycarbonate membrane, splash proof Power supply 9 V power pack battery Auto - OFF automatic switch-off Interface Micro-USB Storage internal ring memory for 125 data sets Additional feature real time clock and date or ± 0.01 NTU whichever is bigger 500 - 1100 NTU: ± 5 % of reading Housing ABS Turbidity standard set T-CAL 4194150 Cleaning cloth for cuvettes 197635 Formazin Stock Solution (4000 NTU), 100 ml 194141 Formazin Stock Solution (4000 NTU), 250 ml 194142 ■ AL255T-IR: USB-Interface ■ Range 0.01 - 1100 NTU ■ Measurement with infrared light at an angle of 90° ■ Measurement of coloured liquids ■ Easy handling ■ 600 tests without battery change Technical data AL250T-IR as AL255T-IR but with the following differences Storage internal ring memory for 16 data sets Interface none Delivery Content AL255T-IR turbidity meter as described above, complete with 4 turbidity standards < 0.1,20, 200 and 800 NTU, battery, cuvettes, warranty information, certificate of compliance, instruction manual in case. Order code: 26 60 30-A AL250T-IR as TB 211 IR but without USB cable Order code: 4 26 60 20 General Catalogue April 2018 Regularly updated information: www.aqualytic.de