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TB 250 WL

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Part Number 194200


  • Ideal for regulatory monitoring, process control pr field use
  • Simple operation
  • Easy calibration
  • Auto-Ranging
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.
Light Source Wolframlampe (Weißlicht)
Operation 5 key polycarbonate membrane, splash proof
Display large LCD display
Suitable Vials Round Cuvettes 24 mm
Power Supply 4 batteries (AA)
Auto – OFF Yes
Measuring Principle nephelometric (90° scattered light)
Measuring Range 0,01 bis 1100 NTU
Portability Portable
Environmental Conditions 0 - 50 °C at 0 - 90 % relative humidity (non condensing)
Compliance CE
Dimensions 95 x 45 x 210 mm
Weight 450 g (Basic unit)
Weight with Packaging (Basic unit)
Testparameter Measuring Range Method No.
Turbidity 0.01 - 1100 NTU
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Secondary standards 0.02, 10, 1000 NTU in plastic case 194280
Secondary standards 0.02, 10, 1000 NTU 194281
Sample cuvettes with black lid, set of 3 194290
Silicon oil 194295
Membrane filter set for use when preparing samples, 25 membrane filters 0.2 µm, 2 syringes 20 ml 366170
Cleaning cloth 197635
Formazin Stock Solution (4000 NTU), 125 ml 194141
Formazin Stock Solution (4000 NTU), 250 ml 194142
Title Online Download Type Format Language Direct Download
Datasheet 194200 - TB 250 WL Datasheet PDF (0.20 MB)
Instruction Manual Turbidimeter TB 250 WL Instruction Manual PDF (1.09 MB)
  • White light source
  • Range 0.01 – 1100 NTU according to USEPA-approval
  • 2 sample vials
  • 3 turbidity standards
  • 4 batteries
  • Instruction manual
  • Warranty information