TB 250 WL

TB 250 WL


  • Ideal for regulatory monitoring, process control pr field use
  • Simple operation
  • Easy calibration
  • Auto-Ranging

Part Number 194200


The TB 250 WL allows easy turbidity measurement in either the field or in the laboratory. Using a „white light“ source and 90° detection, the TB 250 WL meets the specifications for EPA turbidity measurement (EPA Standard 180.1). A power efficient micro-circuit design allows the instrument to yield 5000 tests on 4-AA alkaline batte-
ries with an estimated 7-10 year bulb life. Integrated diagnostics confirm proper operation and accuracy. The instrument features an Auto-Ranging feature that automatically selects the correct turbidity range for your sample. Calibration is simple with the included calibration standards. The instrument comes with all required items for testing including the TB 250 WL Turbidimeter, sample cuvettes, batteries, calibration set, operators manual and carrying case.

Technical Data

Operation5 key polycarbonate membrane, splash proof
Displaylarge LCD display
Suitable VialsRound Cuvettes 24 mm
Measuring Principlenephelometric (90° scattered light)
Measuring Range0,01 bis 1100 NTU
Power Supply4 batteries (AA)
Auto – OFFYes
Environmental Conditions0 – 50 °C at 0 – 90 % relative humidity (non condensing)
Dimensions95 x 45 x 210 mm
Weight450 g (Basic unit)
Weight with Packaging(Basic unit)


TestparameterMeasuring Range
Turbidity0.01 – 1100 NTU


TitlePart Number Add to quotation cart Secondary standards 0.02, 10, 1000 NTU in plastic case194280 Secondary standards 0.02, 10, 1000 NTU194281 Sample cuvettes with black lid, set of 3194290 Silicon oil194295 Membrane filter set for use when preparing samples, 25 membrane filters 0.2 µm, 2 syringes 20 ml366170 Cleaning cloth197635 Formazin Stock Solution (4000 NTU), 125 ml194141 Formazin Stock Solution (4000 NTU), 250 ml194142


TitleOnline Download TypeDirect Download Type
Datasheet 194200 – TB 250 WLDatasheetClick here

Delivery Content

  • White light source
  • Range 0.01 – 1100 NTU according to USEPA-approval
  • 2 sample vials
  • 3 turbidity standards
  • 4 batteries
  • Instruction manual
  • Warranty information