Source Anderson-Negele conductivity, turbidity, pressure, level, flow and temperature sensors, control instruments and the process connections they fit. Describe the process and the measuring point; for a replacement, send the complete order code from the nameplate, because a series name does not identify the configuration. Accessories and spare parts are quoted as separate line items in one specification. According to the manufacturer's sitemap the brand catalog covers 12 categories, 106 series and 28,406 items.
Choose a measurement area
The areas below cover Anderson-Negele measuring instruments, process connections and the spare parts that go with them. Numeric data for a specific configuration is verified against the order code and the manufacturer documentation.
ILM-4 and ILM-4R conductivity sensors
The ILM-4 series measures conductivity and concentration of liquid media inductively: there are no electrodes in the medium, so polarisation and wear of the measuring part do not apply. Range 0…1000 mS/cm, resolution down to 0.001 mS/cm, response time 1.2 s, accuracy ±2 % of the measured value and ±20 µS/cm. The platform is modular: the signal module and the SUI/LUI display are replaced separately, and the remote version ILM-4R keeps the electronics away from the measuring part. The Flex-Hybrid interface provides IO-Link v1.1 and analogue 4…20 mA in parallel; supply 18…36 V, IP69K, 2×M12 or 2×M16 connectors. Process: -10…130 °C, pressure up to 16 bar, CIP/SIP up to 150 °C for a maximum of 60 minutes. Connections: CLEANadapt G1″, Tri-Clamp 1.5″/2″/2.5″/3″, Varivent DN 25 (type F) and DN 40/50 (type N). Wetted materials include PEEK to FDA 21 CFR 177.2415 and a 1.4308 connection head.
Quoting requires the complete order code: connection, measuring part length, interface and seal material are part of the part number. Accessories listed by the manufacturer are replaceable signal modules, the SUI and LUI displays, stainless steel M12 connectors and the MPI-200 programmer; they are ordered as separate line items.
The ITM-51 measures relative turbidity by infrared backscatter at 860 nm: range 0…300,000 NTU (equivalent), 0…200 %TU and 0…75,000 EBC. Accuracy is ±3 % of the measured value between 0…9.999 NTU and ±5 % between 10.000…300.000 NTU, reproducibility is under 1 % of the upper range limit and the response time is 0.75 s. The optics are mounted flush, the lens is sapphire and the sensor body is 1.4404 (316L), which reduces the influence of reflections and medium colour. Process: pressure -1…50 bar, temperature -10…130 °C, CIP/SIP up to 140 °C for a maximum of 120 minutes. Electric: 18…36 V, analogue 4…20 mA, relay output and digital input, IO-Link v1.1, IP69K. Connections: hygienic CLEANadapt G1/2″, Tri-Clamp 1.5″/2″/2.5″/3″, Varivent DN 25 (type F) and DN 40/50 (type N), tightening torque 20 Nm. The remote version ITM-51R keeps the electronics separate from the measuring part; the connecting cable runs up to 30 m.
For an installed instrument, work from the complete nameplate part number and the connection type: one series is built with different fittings and connectors. For the ITM-51R, the measuring part, cable length (up to 30 m) and electronics location are confirmed separately.
The ITM-4 series measures turbidity with a four-beam method: light passes at 90° and 180°, which reduces the influence of medium colour, solid particles and air bubbles. Sensitivity starts at 0 NTU and the response time is under 1 s. A switching output and an analogue 4…20 mA output are provided, together with four selectable ranges. The ITM-4DW version is listed by the manufacturer as a separate series for water. Ranges, connections and output type of a specific configuration are confirmed from the order code.
Selection needs the required turbidity range, pipe or vessel diameter, connection and output type. Four-beam instruments are sensitive to fouling on the optics, so cleaning conditions and access to the measuring point belong in the enquiry.
The L3 measures pressure and hydrostatic level and converts the result to volume, level or pressure itself: tank linearisation and density compensation are built in. Temperature compensation reduces drift to 0.03 % per 10 °C against the 0.4 % typical of the class. The interface is Flex-Hybrid (IO-Link and 4…20 mA) and the design is modular, so a component is replaced in the field; a pharma version is stated on the series page. The D3 and D3P are fully electronic differential pressure and level sensors for service under pressure and under vacuum: two current outputs deliver level and system pressure, no capillaries are used for installation, volume scaling is available, and the display is direct or remote with the instrument supplied preconfigured. The manufacturer pressure category covers L3, D3, D3P, GB, P42, MPF, MPP, HH, HA, HA-autoclaveable, TF/TFP, TP/TPP, SV and SR, together with head and stem modules for the L3 and a head module for the D3. Numeric ranges and accuracy for a specific configuration are provided through the manufacturer order code selection.
State what the output should represent - level, volume or pressure - together with the range, connection and conditions: pressure, vacuum, temperature and cleaning. The modular design of the L3 and D3 makes it possible to identify which part of the instrument is to be replaced.
The continuous level category includes L3, SL, D3/D3P, NSL-F, NSL-M, HB, SX, LD and LA, as well as the LD360s, LD3, LD3xi and LD3xiC weighing systems with TC1/TC2 load cells. The SL is a hydrostatic level sensor with a dual diaphragm: the atmospheric reference is measured by a non-clogging diaphragm, which removes drift caused by condensate; overfill and dry-run protection, one-touch calibration, quick-disconnect connectors, a 3-A compatible design and optional HART are provided. The point level category is represented by the LS, LB, NCS-31P/NCS-32P, Levelite and Roto-Bin-Dicator series. The NCS-31P/NCS-32P capacitive point level sensors work with any liquid regardless of conductivity, suit small line sizes (gap-free connection from 3/4″) and handle viscous media that adhere to the tip; the pharma version comes with adapted wetted materials, certificates and a stainless steel housing. Numeric ranges and accuracy for these series are provided by the manufacturer through order code selection.
Selection requires the level range or switching point, medium density and nature, working pressure and vacuum, connection and vessel diameter, plus cleaning and documentation requirements. Numeric data for a specific configuration is verified from the order code.
The manufacturer describes the MPF as a fully configurable and repairable hygienic pressure sensor. Its modular Smart Replace scheme allows a component to be changed in the field instead of replacing the whole instrument, and continuous operation is possible at process temperatures up to 177 °C. Built-in circuit diagnostics with visual indication and an illuminated internal display simplify commissioning. Mounting is direct or remote, and the pharma variant is listed as a separate series, MPP.
For a failure, first establish which module is to be replaced, because this defines the enquiry. Provide the diaphragm version, connection, range and required output, and state whether a pharma variant is needed.
Hygienic installation is defined by the process connection: it determines self-drainage, access for cleaning and the ability to remove an instrument for calibration. The CPM is a gap-free flush pressure connection for pipes from 1/4″: the sensor diaphragm sits level with the medium passage, which allows pressure sensors with standard 22 and 38 mm diaphragms to be used on small line sizes. Thermowells are available as weld-in versions for vessels and clamp versions for lines, so a temperature sensor can be removed for calibration without opening the process. Tank weld-in spuds come in short and long versions, including reinforced designs for vessels under pressure and vacuum. The CLEANadapt system consists of weld-in sockets and adapters; installation requires a torque of 20 Nm and a suitable weld-in tool.
List adapters, sockets, thermowells, seals, cables and connectors as separate line items in one specification together with the instrument. Connection type and size must be defined in advance: weld-in parts require a weld-in tool and a specified torque.
The flow category covers electromagnetic and turbine flow meters as well as the AE air eliminator: IZMAG, FMQ, IZMS, IZM-Q, HM, HM-E, HMP, HMP-E and FTS. The electromagnetic IZM-Q is NTEP certified (No. 20-050) and is used for milk receiving in the USA: range 0.88…880 GPM, media with conductivity from 5 µS/cm, compatible with the AE air eliminator. The HM is a turbine flow meter with non-contact pulse measurement for non-conductive water-based media, and its two-part body allows the rotor to be replaced. The HMP is intended for hygienic pharmaceutical and biotechnological processes. Selection requires the pipe diameter, flow range, medium conductivity, temperature, pressure and cleaning method.
In addition to diameter and flow range, state the minimum medium conductivity and the cleaning method: an electromagnetic meter does not suit non-conductive media. Also state whether an air eliminator is needed and how readings reach the accounting system.
Temperature sensors and TTB-H / TTB-D transmitters
Hygienic temperature sensors are made of 316L stainless steel and meet 3-A, EHEDG and FDA requirements. The TSBA is a hygienic temperature sensor with the Flex-Hybrid interface (IO-Link and 4…20 mA), five configuration levels, an optional Dual Pt100 for redundant or parallel measurement and an all-stainless design suitable for cleaning. The TSMA Mini is a miniature sensor with the same flexibility. The programmable TTB-H transmitter fits into the connection head of a temperature sensor or into third-party equipment with a DIN-B head; the version with a display is the TTB-D. Sensor and transmitter are ordered as separate line items, so a failed electronics module is replaced on its own. The temperature category also includes the SA, SW/CT, FH, FJ, FH3/FH4 and FD series.
Provide the head type, measuring part length, connection, range and required output. For redundant measurement, note Dual Pt100; for cleaning, state its temperature and chemicals.
The hygienic status of a section depends not only on the instrument but on the installation point: the manufacturer describes separately the conditions under which an installation meets 3-A and EHEDG requirements. Under 3-A, bottom mounting into a tank with Tri-Clamp is not permitted and the rule T < 2(D−d) applies with a 127 mm limit; top, upper-side and side mounting are allowed, as are Tri-Clamp 1½″…3″, Tri-Clamp with an extended stem and Varivent DN 25 / DN 40-50. Under EHEDG, neither bottom nor lower-side mounting is permitted and the rule T < (D−d) applies, while installation is made through the CLEANadapt system with EMZ/EMS/EMK/EHG sockets (pipe > DN25), ISO20, G1″ and AMC/AMV adapters; welding follows EHEDG Document No. 9 and AWS D18.1. Cleaning is designed to 3-A General Standards D1.2.1.3 and EHEDG Document No. 50, with recommended caustic and acid solutions of 0…1.5 %. Self-drainage, service access and a leakage detection hole at the lowest point are mandatory.
If an instrument is relocated or a section is modified, check the admissibility of the chosen installation point against the manufacturer documents first: both the connection type and the accessory set follow from it. A new point normally requires a CLEANadapt weld-in socket and welding to the accepted standards.
Control and recording instruments and signal modules
The manufacturer does not build dedicated conductivity or turbidity controllers: the sensor signal goes directly to a PLC over IO-Link or an analogue 4…20 mA loop, and a replaceable signal module defines the set of outputs. For the ITM-51 these are the I42 module (IO-Link and 1×4…20 mA), the I52 (plus a switching output) and the I53 (plus an input for external range switching); ILM-4 modules are analogue or digital and their outputs are freely configurable. For control and recording the manufacturer offers separate instruments that are not controllers for these sensors: BC110, LT, AIC 801, AIC Recorder Assembly, AccuBin, ORB, SVS2000, Weigh II, the PPR paperless recorder and the Legendary cloud recording system. IO-Link complies with IEC 61131-9 and is not tied to a specific fieldbus; a converter for an M12 connector turns an analogue signal into a digital one.
Describe what is already installed on the line: a PLC with IO-Link, a 4…20 mA input module, a transmitter or a recorder. An enquiry for a control or recording instrument also covers the number of inputs, signal types and recording requirements.
The manufacturer describes cleaning control by process condition rather than by timer: the transition between steps is triggered by measured values instead of elapsed time. Typical cycle stages are product displacement, rinsing, caustic, acid and, where required, steam sterilisation. A control package is normally assembled from a conductivity sensor for cleaning solution concentration, a turbidity sensor for displacement and rinsing, a flow meter and a temperature sensor. Cleaning regimes are specified by the manufacturer: for the ILM-4 CIP/SIP up to 150 °C for a maximum of 60 minutes, for the ITM-51 up to 140 °C for a maximum of 120 minutes; the 3-A and EHEDG installation conditions cover self-drainage, orientation and a leakage detection hole.
List the items in a single enquiry and state the equipment they will be installed on. Add the cleaning parameters: temperature, duration, concentration and type of cleaning solutions.
State what is measured - conductivity, turbidity, pressure, level, flow or temperature - where the measuring point is installed and what connection, pipe or vessel diameter it uses. Add the process data: product or cleaning solution, concentration, conductivity, viscosity, solids, working and maximum temperature, pressure and vacuum. Describe cleaning: method, temperature, duration and chemicals. List separately the required outputs and connectors, material and documentation requirements, and the controller or recorder that receives the signal.
Replacement instruments, accessories and spare parts
A replacement requires the complete order code of the installed instrument, the serial number and a nameplate photo: the same series is built with different connections, interfaces and seal materials. Add quantities and list accessories as separate line items - adapters, weld-in sockets, thermowells, seals, cables and connectors, replaceable signal modules, SUI/LUI displays and the MPI-200 programmer. Some instruments use a sealed, non-repairable design: for these the manufacturer states cleaning, calibration and certification, while flow meters, control and recording instruments, analytical instruments and digital indicators are returned for evaluation.
Send an order code or process description
Include quantity and delivery city, and attach a nameplate photo, a documentation page, a connection photo or a description of the task. This is used to confirm the configuration and quote the supply.
