ITM-51, ITM-51R

ITM-51, ITM-51R

ITM-51, ITM-51R

Product catalog summary
Application and Usage: The ITM-51 sensor is designed for relative turbidity measurement in liquid media with mid to high turbidity ranges (200 to 300,000 NTU). It is used in applications such as phase separation in dairy products, CIP-return line monitoring, yeast harvesting in breweries, quality control, and leakage control of filters and gaskets.
Hygienic Design and Process Connection: The sensor can be installed using Negele weld-in sleeves or adapters from the CLEANadapt system, ensuring a hygienic and sterilizable setup. It supports CIP/SIP cleaning up to 140°C for a maximum of 120 minutes. The sensor is made of stainless steel with sapphire optics and is compliant with FDA standards. Various process connections are available, including G1/2" hygienic, Tri-Clamp, and Varivent.
Features and Advantages: The sensor features a front flush design, is independent of reflections, and has no color dependency due to its 860 nm wavelength. It offers high reproducibility (≤ 1% of full scale) and adjustable outputs (4-20 mA and switching output). Two measurement ranges are externally switchable.
Measuring Principle: The sensor uses an infrared backscatter principle where an infrared diode emits light into the media, and particles reflect this light back to a receiver diode. The electronics calculate the relative turbidity based on the received signal.
Specifications: The sensor's measurement range is adjustable from 0 to 300,000 NTU. It supports various process connections and operates under process pressures from -1 to 20 bar. The sensor is made from stainless steel, sapphire, and polycarbonate, with temperature ranges for ambient, process, and CIP/SIP conditions specified.
Installation and Calibration: Proper installation ensures the sensor tip is fully washed by media without bubbles. Calibration is factory-set, with no periodic recalibration necessary. A calibration check tool is available for on-site verification.
Electrical Connection: The sensor supports various electrical connections, including M12 connectors and cable glands. It operates on a supply voltage of 18-36 V DC and has an IP69K protection class.
Compliance and Standards: The ITM-51 sensor complies with the 3-A Sanitary Standard and the Electromagnetic Compatibility Directive 2014/30/EC. It is designed for CIP/SIP cleaning and includes internal leakage monitoring.
Order Information: The document provides detailed order codes for different configurations of the ITM-51 sensor, including process connections, outputs, electrical connections, and interface/display options.
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Catalog excerpts

ITM-51, ITM-51R-1

SENSORS FOR FOOD AND BIOPHARMA. ANDERSON-NEGELE Product Information ITM-51 | ITM-51R FOOD Relative Turbidity Meter ITM-51 /CLEANadapt! Application / Specified Usage ■ Relative turbidity measurement of liquid media for mid to high turbidity range (200...300,000 NTU equivalent) 46-03 Application Examples ■ Phase separation of products (for example whey - cream - milk) ■ CIP-return line (monitoring of pre-rinse water to product leftovers) ■ Yeast harvest in breweries ■ Quality control ■ Leackage control of filter and gaskets ITM-51 Hygienic Design / Process Connection ■ By using Negele weld-in sleeves / adapters of the CLEANadapt system or the build-in system EHG-.../ 1/2" a flow optimized, hygienic and easy sterilizable installation will be achieved. ■ CIP-/SIP-cleaning up to 140 °C / maximum 120 minutes ■ Product contacting materials compliant to FDA ■ Sensor made of stainless steel ■ Optics made of high resistant sapphire ■ Process connection G1/2" hygienic, Tri-Clamp or Varivent, adapters available for milk pipe (DIN 11851), DRD, APV et al. (see CLEANadapt product information) ■ 3-A compliant Tri-Clamp process connection Features / Advantages ■ Front flush sensor ■ Independent to reflexions at small diameters or electro-polished surfaces ■ No color dependency (wave length 860 nm) ■ Smallest pipe diameter: DN 25 ■ High reproducibility: < 1% of full scale ■ Switching output (switchpoint and hysteresis freely adjustable) ■ Analog output 4...20 mA freely adjustable ■ Two ranges externally switchable ITM-51R Options / Accessories ■ Electrical connection with M12 plug-in connector ■ Preassembled cable for M12 plug-in connector ■ Display module Simple User Interface (SUI) and Large User Interface (LUI) ■ Remote version with cable length up to 30 m Measurement Principle Sensor Measuring Principle of the Relative Turbidity Meter An infrared diode irradiates infrared light into the media. Particles in the media reflecting the irradiated light which is detected by the receiver diode (backscatter principle). The electronics calculates the relative turbidity of the media according to the received signal. The relative turbidity is based on the Negele calibration standard and is displayed in ”%TU".

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ITM-51, ITM-51R-2

Specification | Advices Specification Mechanical Connection / Installation ■ The sensor has to be installed in that way that the sensor tip is entirely washed around by media and no bubbles can occure. Installation in a rising pipe is recommended. ■ If weld-in sleeve is correctly mounted the axis between the 2 connectors points in flow direction. ■ For installation in horizontal pipes from top the standard sensor with 15 mm sensor tip is recommended to avoid the influence of bubbles to the measuring signal. ■ Attention: The maximum tightening torque for mounting is 20 Nm! Conditions for a measuring...

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ITM-51, ITM-51R-3

FOOD ITM-51 with vertical head orientation ITM-51 with horizontal head orientation Varivent size Tri-Clamp size

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ITM-51, ITM-51R-4

Dimensional Drawings | Advices HUR / Head Unit Remote Version ■ This instrument is not subject to the WEEE directive 2002/96/EG and the respective national laws. ■ Pass the instrument directly on to a specialised recycling company and do not use the municipal collecting points. ■ Sensors shall be clean and must not be contaminated with dangerous media! Please note the advice for cleaning on page 5! ■ Use suitable transport packaging only to avoid damage of the equipment!

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ITM-51, ITM-51R-5

·· The factory setting of the device is measuring range 1 (0...100 % = 4...20 mA). ·· With an external control voltage (24 V DC) range 2 can be selected (E1 = 24 V DC). (See “Electrical Connection”) Switching the Measurement Range flow direction ·· The digital control input E1 is galvanically isolated from the power supply. Ground: clamp 9 (0 V) E1* Measurement Range Select suitable measurement range in applications with high turbidity variances (e.g. milk / milk water mixture) for precise measurement! Device is calibrated ex works. A periodical calibration is not neccessary. A calibration check...

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ITM-51, ITM-51R-6

Electrical Connection | Installation FOOD Electrical Connection ITM-51 | ITM-51R Parameterization The turbidity meter ITM-51 / ITM-51R is set to operate without requiring special settings. Should the parameters need to be changed, this can be performed using the PC-based MPI-200 programming adapter or the User Interface. For further details please refer to the operating manual. Programming adapter MPI-200-F connection Connection plug for MPI-200-F adapter as an intermediate plug between the ITM-51 electronics and the MPI-200 connection 3 (see next figure). Power supply +24 V DC Power supply Digital...

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ITM-51, ITM-51R-7

Order Code Order code ITM-51R (relative turbidity meter, remote version, remote cable must be ordered seperately) Process connection S0L (CLEANadapt G1/2", 15 mm sensor tip) MMX (further process connections on request) Output A42 (1 x 4...20 mA turbidity only, display prepared) A52 (1 x 4...20 mA turbidity, 1 x switching out, no external range switching, display prepared) A53 (1 x 4...20 mA turbidity, 1 x switching out, external range switching, display prepared) Electrical connection P (cable gland M16x1.5) M (1 x M12 connector, 4 pin for output A42, 5 pin for output A5x) N (2 x M12 plug, standard)...

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ITM-51, ITM-51R-8

Product Information ITM-51 | ITM-51R Order code ITM-51 (relative turbidity meter) Process connection S0L (CLEANadapt G1/2", 15 mm sensor tip) MMX (further process connections on request) Enclosure Orientation H (horizontal) Output A42 (1 x 4...20 mA turbidity only, display prepared) A52 (1 x 4...20 mA turbidity, 1 x switching out, no external range switching, display prepared) A53 (1 x 4...20 mA turbidity, 1 x switching out, external range switching, display prepared) Electrical connection P (cable gland M16x1.5) M (1 x M12 connector, 4-pin for output A42, 5-pin for output A5x) A (2 x M12 plug,...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.