• Turbidimeters

Turbidimeters

  • EPA: 0 - 700 NTU / FNU / TE/F / FTU, 0 - 100 mg/L, 0 - 175 EBC
  • ISO: 0 - 1000 NTU / FNU / TE/F / FTU, 0 - 100 mg/L, 0 - 250 EBC

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The next standard in the evolution of turbidity

Only the new TU5 Series Lab & Process Turbidimeters with 360° x 90° Detection™ deliver unprecedented confidence that a change in your reading is a change in your water.

Groundbreaking 360° x 90° Detection™ Technology

The TU5 Series employs a patented optical design that sees more of your sample than any other turbidimeter, delivering the best low level precision and sensitivity while minimizing variability from test to test.

Matching lab and online results

For the first time you will be able to remove the uncertainty of which measurement to trust, thanks to identical 360° x 90° Detection™ Technology in both instruments.

Everything about turbidity – faster

The TU5 Series dramatically reduces the time needed to get a turbidity measurement you can rely on, with 98% less online sample surface area to clean, sealed vials for calibration, and the elimination of the need for indexing and silicone oil in the lab. Not to mention, a smaller online sample volume means you will detect events almost immediately.

No surprises

Prognosys™ monitors your TU5 Series online instrument, proactively alerting you to maintenance needs before your measurement becomes questionable. And a Hach Service Agreement protects your investment and helps ensure that you stay in compliance and on budget.

Applications

  • Drinking Water
  • Power
  • Beverage
  • Pharmaceutical

Principle of Operation

The TU5 Series turbidimeters measure turbidity by directing a laser into a sample to scatter off suspended particles. The light that is scattered at a 90° angle from the incident beam is reflected through a conical mirror in a 360° ring around the sample before it is captured by a detector.
The amount of light scattered is proportional to the turbidity of the sample. If the turbidity of the sample is negligible, little light will be scattered and detected by the photocell and the turbidity reading will be low. High turbidity, on the other hand, will cause a high level of light scattering and result in a high reading.
The 360° x 90° optics of the TU5 series were optimized for high accuracy at low turbidity ranges and therefore the TU5 does not include ratio technology. Ratio technology is only applicable for high turbidity applications which have interference from color and large particles.

Dimensions

TU5300 sc and TU5400 sc front viewTU5300 sc and TU5400 sc rear view
TU5300 sc and TU5400 sc top viewTU5300 sc and TU5400 sc with automatic cleaning module
Light SourceClass 2 laser product, with embedded 650 nm (EPA 0.43 mW) or Class 1 laser product, with embedded 850 nm (ISO),max. 0.55 mW (complies with IEC/EN 60825-1 and to 21 CFR 1040.10 in accordance with Laser Notice No. 50)
RangeEPA:
0 - 700 NTU / FNU / TE/F / FTU
0 - 100 mg/L
0 - 175 EBC
ISO:
0 - 1000 NTU / FNU / TE/F / FTU
0 - 100 mg/L
0 - 250 EBC
Accuracy±2 % plus 0.01 NTU from 0 - 40 NTU;
±10 % of reading from 40 - 1000 NTU based on Formazin primary standard (at 25 °C)
Resolution0.0001 NTU / FNU / TE/F / FTU /
EBC / mg/L
Repeatability<40 NTU: Better than 1% of reading or ±0.002 NTU on Formazin at 25 °C, whichever is greater
>40 NTU: Better than 3.5% of reading on Formazin at 25 °C
Stray Light<10 mNTU
UnitsNTU, FNU, TE/F, FTU, EBC;
mg/L if calibrated with Degrees calibration curve
Operating Temperature Range10 - 40 °C (50 - 104 °F)
Operating Humidity80% at 30 °C (non condensing)
Sample Temperature4 - 70 °C (39 - 158 °F)
Storage Conditions-30 - 60 °C (-22 - 140 °F)
Power Requirements (Voltage)100 - 240 VAC
Power Requirements (Hz)50/60 Hz
CertificationsCE compliant
US FDA accession number: 1420493-000 EPA version, 1420492-
000 ISO version
Complies with IEC/EN 60825-1 and to 21 CFR 1040.10 in accordance with Laser Notice No. 50)
Australian ACMA Marking
Dimensions (H x W x D)195 mm x 409 mm x 278 mm
Weight2.4 kg (5.29 lbs.)
Warranty1 year
Light SourceClass 2 laser product, with embedded 650 nm (EPA 0.43 mW) or Class 1 laser product, with embedded 850 nm (ISO),max. 0.55 mW (complies with IEC/EN 60825-1 and to 21 CFR 1040.10 in accordance with Laser Notice No. 50)
RangeEPA:
0 - 700 NTU / FNU / TE/F / FTU
0 - 100 mg/L
0 - 175 EBC
ISO:
0 - 1000 NTU / FNU / TE/F / FTU
0 - 100 mg/L
0 - 250 EBC
Accuracy±2% or 0.01 NTU from 0 - 40 NTU
±10% of reading from 40 - 1000 NTU based on Formazin primary standard
Resolution0.0001 NTU / FNU / TE/F / FTU / EBC
RepeatabilityBetter than 1% of reading or ±0.002 NTU (TU5300) or ±0.0006 NTU
(TU5400) on Formazin at 25 °C (77 °F),whichever is greater
Stray Light<10 mNTU
UnitsNTU, FNU, TE/F, FTU, EBC
Signal Average Time5 - 90 seconds
Response TimeT90 <30 seconds at 100 mL/min
Sample Temperature2 - 60 °C (35 - 140 °F)
Sample Pressure6 bar (87 psi) maximum, compared to air at sample temperature range from 2 - 40 °C (35.6 - 104 °F)
Sample Flow Rate100 - 1000 mL/min; optimal flow rate: 200 - 500 mL/min
Operating Temperature Range0 - 50 °C (32 - 122 °F)
 
Operating HumidityRelative humidity: 5 - 95% at different temperatures, non-condensing
Storage Conditions-40 - 60 °C (-40 - 140 °F)
CertificationsCE compliant
US FDA accession number: 1420493-000 EPA version,
1420492-000 ISO version
Complies with IEC/EN 60825-1 and to 21 CFR 1040.10 in accordance with Laser Notice No. 50)
Australian ACMA Marking
Dimensions (H x W x D)249 mm x 268 mm x 190 mm
Weight5.95 lbs. (2.7 kg);
11 lbs. (5.0 kg) with all accessories
Warranty1 year