*Only for sale outside the EU

DT9011 Laboratory Turbidimeter*

Triple Beam Scattered Light Benchtop Turbidity Analyzer

Quick turbidity analysis in bottles, e.g., in beer production, make the DT9011 an ideal measuring device for Quality Assurance and Control, even accepting cuvettes for scattered light analysis. Final product control in bottles save time, reduces handing steps and with the integrated sample turning function, variations of the bottles can be compensated.

Used For

  • Nephelometric turbidity measurement at 0° (reference), 11°, 90°
  • Turbidity scales:
    • CU (concentration units)
    • ppm (DE)
    • FTU
    • NTU
    • FAU
    • EBC (ASBC)
    • Helms
  • Typical Uses
    • Direct measurements in bottles or cuvettes
    • Finished Product Quality Control and Assessment
    • Process Analyzer Backup - Verification
    • Stable Cloud Assessments
    • Filtration Predictability
    • Shelf Stability Analysis
Features
Benefits

3 channel nephelometric turbidity laboratory analysis system
Laboratory nephelometric / haze measurements at 90 and 11 degrees.

Menu based software in several languages
Pre-configured and calibrated for haze measurement

Direct measurement in bottles and sample cuvettes
Convenient quality control without additional sampling steps

Technical identical to inline measurement with DTF16 Haze Control 4000
Comparable results inline and offline

RS232 port for data transmission to PC
Documentation of results for quality control

The DT9011 is an “In the Bottle” Turbidimeter, which also accepts cuvettes for upstream process sampling. It provides both an 11° Forward Scatter Measurement for direct assessment of Turbidity content as well as a 90° Side Scatter Measurement for Clarity / Haze assessment. MEBAK compliant wavelength bandwidth protects light sensitive products, compensates for product / vessel color and eliminates any particle size sensitivity.

The suppressed stray light, Triple Beam - Ratio measurement design compensates for bottle and product color as well as lamp aging. Factory zero and calibration stability means multiple analyzers will always provide comparable results, which are also comparable to the optek DTF16 inline Turbidity Sensor. Calibrations or zero point settings in the field are not necessary. User selectable units scales provide ultimate flexibility across broad product ranges. Transferable data allows it to be tied in directly to your DCS (distributed control system), via an RS232 serial port.

DT9011
Schematic
  1. Lamp module
  2. Optics module
  3. Windows
  4. Sample chamber with bath turntable
  5. Focusing optics
  6. Eight 11° detectors
  7. Detector 0° (Abs.)
  8. Optics module 90°
  9. Detector 90°
Measurement
Measurement principle

1- Channel Absorption of light and 2-Channel Scattering of light (11° and 90°)

Measurement wavelength(s)

590 nm - 1100 nm

Detector(s)

1 silicon photodiode (hermetically sealed) (Abs.)

1 silicon photodiode (hermetically sealed) (90°)

8 silicon photodiodes (hermetically sealed) (11°)

Measuring Range

Bottles

any measuring range between

  • 0 - 1 to 25 EBC (11° and 90°)
  • 0 - 4 to 100 FTU (11°)
  • 0 - 4 to 100 FTU / NTU (90°)

Cuvettes

any measuring range between

  • 0 - 1 to 100 EBC (11° and 90°)
  • 0 - 4 to 400 FTU (11°)
  • 0 - 4 to 400 FTU / NTU (90°)
Calibration

factory calibration (11° and 90°)

user calibration possible, at any time reversible to factory calibration

comparison between factory settings and user settings possible

Light source

special halogen lamp 5.0 V DC, 970 mA

typical life span: 1.5 to 3 years (12,500 to 25,000 hours)

Resolution

0 - 1 EBC to 0 - 4 FTU:

< ± 1 % of respective measuring range

0 - 100 EBC or 0 - 400 FTU:

< ± 0.05 % of respective measuring range

Repeatability

< ± 1.0 % in cuvette

Linearity

< ± 1.0 % in cuvette

Protection

table case front IP40

System
Material

housing:stainless steel 1.4301 (SS 304)

dimensions:W 381 mm (15 in.) H 394 mm (15.5 in.) D 445 mm (17.5 in.)

measurement chamber:POM C

tubing:PA, PVC

fittings:stainles steel, brass

Water bath

overflow drain valve (flow regulation)

sensor for minimum water level

volume:600 ml (20 fl oz)

flow:5 to 15 l/h with circulation

Rotation system

standard

Display

LCD graphic display black on white (240 x 128 pixel), LED background illuminated

Operation

18-button keyboard

System clock

accuracy approx. 1 minute/month (battery life approx. 15 years)

LED

1 LED (green):power on

1 LED (red-flashing):system failure / lamp failure

2 LEDs (yellow):alarm I, II

Serial communication

RS232 bi directional interface on the back ( with software package optek PC-transfer)

upload /download of configuration, download of data logger content

Power supply

115 / 230 V AC, selectable (93.5 - 132 / 187 - 264 V AC, 47 - 64 Hz)

consider an external release device

power consumption:< 50 VA

Windows

borosilicate glass

Gaskets

buna, Viton®

Cuvettes

diameter:Ø 58.0 mm to Ø 72.5 mm (2.28 in to 2.85 in.)

wall thickness:minimum 2 mm (0.08 in.)

height:140 - 280 mm (5.5 - 11.0 in.)

Bottles

diameter:Ø 58.0 - 72.5 mm (2.28 - 2.85 in.)

height:140 - 280 mm (5.5 - 11.0 in.)

color:green, brown, clear

Bottle insert

adapter 61 mm (2.40 in.):bottles Ø 58.0 - 60.5 mm (2.28 - 2.38 in.)

adapter 64 mm (2.52 in.):bottles Ø 60.5 - 63.5 mm (2.38 - 2.50 in.)

adapter 67 mm (2.64 in.):bottles Ø 63.5 - 66.5 mm (2.50 - 2.62 in.)

adapter 70 mm (2.76 in.):bottles Ø 66.5 - 69.5 mm (2.62 - 2.74 in.)

without adapter:bottles Ø 69.5 - 72.5 mm (2.74 - 2.85 in.)

Temperature Ratings
Water bath remperature

10° C to 40 °C (50° F to 104 °F)

Ambient temperature

operation:0 - 40 °C (32 - 104 °F)

transport:-20 - 70 °C ( -4 - 158 °F)

Pressure and temperature ratings specified herein may be subject to limitations - see instruction manual. The appropriate choice of material for all wetted parts is the sole responsibility of the user. Data given are subject to changes without prior notice.

Speed / Spare Parts

DT9011 bottle adapters PN: 1200-3301-0002-00
DT9011 Adapter Set

Bottle adapters for the DT9011

PN: 1200-3301-0002-00

Lamp Module DT9011     PN: 1426-3301-0701-01

Lamp Module DT9011

PN: 1426-3301-0701-01

DT9011 cover PN: 0102-0005-85
DT9011 Cover

Replacement cover blocks stray light from the measuring chamber

PN: 0102-0005-85

Set of glass cuvettes for the DT9011 PN: 1200-3301-0001-01
Sampling cuvettes

Glass cuvettes for pouring samples into

PN: 1200-3301-0001-01

optek HC PC-Transfer Software PN: 2380-3301-0005-03
PC Transfer Software

Allows communication between the DT9011 and a computer

PN: 2380-3301-0005-03

Related Page:

Software

Plastic tubing used to fill and drain DT9011 PN: 1200-3301-0003-01
PVC plastic tubing

Easily drain and fill the measuring chamber

PN: 1200-3301-0003-01

RS-232 data cable PN: 1350-3321-0011-01
RS232 Cable

This cable connects your DT9011 to a computer

PN: 1350-3321-0011-01

10x Fuse T 1,600A (5x20)   PN: 1200-3300-0005-00

10x Fuse T 1,600A (5x20)

PN: 1200-3300-0005-00

DT9011 Silica Gel PN: 1200-3301-0004-00

DT9011 Silica Gel

PN: 1200-3301-0004-00

Haze Control Product Information

Visit our documentation page to view a complete list of translated documents.