DTF16 Nephelometric Turbidity Sensor

High performance 3 channel nephelometric turbidity sensor

The DTF16 is a high 3 channel turbidity sensor for installation into pipelines, measuring turbidity at two angles of scattered light and a direct reference channel in various liquid flow streams.

Used For

  • High precision control of turbidity with compensation of colored products
  • Turbidity scales:
    • CU (concentration units)
    • ppm (DE)
    • FTU
    • NTU
    • FAU
  • Turbidity based
    • separator control
    • beer filtration: quality and clarity at each step
    • Pectin filtration
  • Turbidity measurement angles: 0°, 11°, 90°
Features
Benefits

Lifetime Stable Factory Calibration and Zero Point
Pre-calibrated process haze and turbidity measurement in EBC (ASBC) etc.

Optimized design for stray Light Suppression
No need for maintenance and recalibration

MEBAK Compliant – Broadband Wavelength Filtered Light Source
Meets specific regulations

High precision 3 angle measurement at 0°, 11 °, 90°
Discrete monitoring of larger particles and haze without signal interferences (11 + 90)

The optek DTF16 is an advanced function inline turbidity sensor for filtration control, release line turbidity and real-time quality control. It provides both an 11° Forward Scatter Measurement for highly sensitive detection of particles as well as a 90° side scatter measurement for standardized clarity / haze assessment. The stray light suppressed, triple beam - ratio measurement design compensates for product color as well as lamp aging. Factory zero and calibration stability ensure that multiple analyzers will always provide comparable results, which are also comparable to our DT9011 bench-top turbidity analyzer. Calibrations or zero point settings in the field are not necessary.

DTF16
Schematic
  1. Lamp module
  2. Optics module
  3. Windows
  4. Sensor body
  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 NIR-Absorption

any measuring range between

  • 0 - 0.1 to 500 EBC
  • 0 - 0.4 to 2,000 FTU
Measuring range Scattered Light (11°)

any measuring range between

  • 0 - 0.1 to 25 EBC
  • 0 - 0.4 to 100 FTU
Measuring range Scattered Light (90°)

any measuring range between

  • 0 - 0.1 to 25 EBC
  • 0 - 0.4 to 100 FTU / NTU
Optical path length

80 mm standard

Calibration

factory calibration (11° and 90°)

0 - 25 EBC / 0 - 100 FTU

in standard sensor body (OPL = 80 mm)

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

< ± 0.05 % of respective measuring range

Repeatability

< ± 0.3 % of respective measuring range

Linearity

< ± 0.5 % of respective measuring range

(with standard solution, specific to application)

Protection

all optical parts have an IP rating of IP65 or higher

Sensor Body
Material

Stainless steel 1.4435 (SS 316L), Plastic TFM4215, others on request

Line size

1.5 in. to 6 in. (DN 40 to DN 150), others on request

Process connection

butt weld tube ends:DIN 11850, ISO 1127, IPS (Schedule 5), OD (BS 4825-1), others on request (e.g. Flange (DIN, ASME), Tri-Clamp)

Process pressure

0 - 20 bar (0 - 280 psi)

Windows

3-Sapphire Biotech (type 3A)

Window gaskets

EPDM (FDA / USP Class VI), others on request

Temperature Ratings
Process temperature

permanent: 0 - 120 °C ( 32 - 248 °F)

peak 15 min/day: 0 - 150 °C ( 32 - 302 °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

Lamp Module DTF16

Lamp Module DTF16

PN: 1426-3151-1001-01

Installation Kit DTF

Installation Kit DTF

PN: 1201-3151-0001-00

O-Ring 10.10 x 1.60 Viton® (4)

O-Ring 10.10 x 1.60 Viton® (4)

PN: 1203-0004-0008-02

O-Ring 21.95 x 1.78 Viton® (FDA) (4)

O-Ring 21.95 x 1.78 Viton® (FDA) (4)

PN: 1203-0004-0015-02

O-Ring 25.12 x 1.78 Viton® (4)

O-Ring 25.12 x 1.78 Viton® (4)

PN: 1203-0004-0016-02

O-Ring 31.47 x 1.78 Viton® (4)

O-Ring 31.47 x 1.78 Viton® (4)

PN: 1203-0004-0018-02

O-Ring 50.52 x 1.78 Viton® (4)

O-Ring 50.52 x 1.78 Viton® (4)

PN: 1203-0004-0021-02

Haze Control Product Information

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