SENSORS FOR FOOD AND BIOPHARMA. Application/intended use ■ Continuous level monitoring in metallic vessels up to 3 m in height ■ Ideally suited for highly adhesive and pasty media ■ Level measurement of foaming media ■ Minimum product conductivity typically from 50 pS/cm (available on request for lower values) ■ Hygienic substitute for float sensors Application examples ■ Level monitoring in feed vessels ■ Level measurement in storage tanks ■ Content measurement in pressurized vessels «| Federal Ministry I of Economics and Technology on the basis of a decision by the German Bundestag Hygienic design/process connection ■ Use of Negele CLEANadapt build-in system results in a hygienic installation situation that is free of gaps and dead space and is easy to sterilize. ■ Process connection G1/2" and G1" hygienic or Tri-Clamp, adapters available for milk pipe (DIN 11851), Varivent, DRD, ... (see CLEANadapt product information) ■ EHEDG-certified hygienic CLEANadapt process connection ■ Compliant with 3-A standard ■ All materials in contact with the product have FDA approval ■ Sensor made entirely of stainless steel (protection class IP 69 K) ■ CIP/SIP cleaning up to 143 °C/120 min (289 °F/120 min) Special features/advantages ■ 4-wire sensor with 4...20 mA output signal ■ Due to potentiometric measurement principle, no adjustment needed after media change ■ Individual parameter adjustment and programming via PC interface ■ Adjustment of the M12 plug by means of the twistable sensor head ■ Mounting in vessels from the below or above ■ Mounting on the side with angled sensor ■ Adjustable current signal for measurement range, dry run signal and error signal Options/accessories ■ Pre-assembled cable for M12 plug ■ Programming adapter MPI-200 with PC software ■ Display module Simple User Interface (SUI) and Large User Interface (LUI) ■ Remote version with cable length up to 30 m Continuous level sensor NSL-F-00 Head unit remote version (HUR)

Specification | Additional Information Specification Functional principle The potentiometric measuring principle measures the change in the voltage ratio between the electrode rod of the sensor and the metallic wall of the filled tank. An electric flow field arises in the medium due to the electrical conductivity of the medium and its capacitive properties. This gives rise to a voltage ratio that is proportional to the immersed part of the rod. Because only the ratio of the voltages is considered, the properties of the medium, in particular the electrical conductivity, do not enter into the measurement...

FOOD NSL-F ... with horizontal head NSL-F ... with vertical head Rod diameter Rod diameter is depending on rod length (EL). For exact diameter see below-mentioned tables. Tri-Clamp diameter

Dimensional Drawings NSL-FS /G1/2" CLEANadapt NSL-FS / Varivent Dimensions table Varivent®

Dimensional Drawings | Advices Version NSL-F-01 The NSL-F sensor is optionally available as version NSL-F-01 and NSL-FR-01 with a curved rod. L1 (80...300) α( 0°) ...9 10 Calculation of the total length: EL = L1 + (α/360° x 251) + L2 Conventional usage ·· Not suitable for applications in explosive areas. ·· Not suitable for applications in security-relevant equipment (SIL). Mounting position If the sensor is mounted into a vessel from below, there is a range of 20 mm or 35 mm from the sealing edge (see dimensional drawing) where the level cannot be reliably measured. The 4 mA/20 mA signal starts...

Electrical Connection | Parameterization Electrical connection with cable gland Settings using the MPI-200 programming adapter The MPI-200 programming adapter is connected to the NSL-F level sensor via the external MPI-200-F adapter piece. It must be ensured that the NSL-F level sensor is permanently connected to the supply voltage while the parameters are being set. Programming adapter MPI-200-F connection Connection plug for MPI-200-F adapter as an intermediate plug between the NSL-F electronics and the MPI-200 connection 3 (see next figure). Electrical connection with M12 plug Connection of...

·· Do not store outside ·· Store in an area that is dry and dust-free ·· Do not expose to corrosive media ·· Protect against solar radiation ·· Avoid mechanical shock and vibration ·· Storage temperature -40...+85 °C ·· Relative humidity maximum 98% ·· Sensors and process connection shall be clean and must not be contaminated with dangerous media and/or heatconductive paste! Note the advice for cleaning! ·· To avoid damage of the equipment, use suitable transport packaging only. ·· In case of using pressure washers, dont‘t point nozzle directly to electrical connections! ·· Compliance with the...

Accessories PVC cable with M12 connection, made of 1.4305 (303), IP 69 K, unshielded M12-PVC / 4-5 m PVC cable, 4-pin, length 5 m PVC cable with M12 connection, nickel-plated brass, IP 67, shielded M12-PVC / 4G-5 m PVC cable, 4-pin, length 5 m Programming adapter/PC interface MPI-200 Including PC software CERT / 2.2 Factory certificate 2.2 acc. to EN10204 (only product contacting surface) Connection cable for NSL-FR (remote version) PVC cable, M12 coupling both-sided, 8-pin, IP69K, 5 m PVC cable, M12 coupling both-sided, 8-pin, IP69K, 10 m PVC cable, M12 coupling both-sided,...

Order Code Order code NSL-F-00 (Potentiometric continuous level sensor, compact version in 4-wire technology, straight design) Rod lenght EL, choose length in a 10-mm raster, e.g.: 0220, 0230, 0240 etc., max. length 3000 mm. (intermediate sizes in 1-mm steps on request.) 0050...3000 (material 1.4404) Process connection S00 (CLEANadapt G1/2" hygienic) V10 (Varivent type B, DN 10/15) V25 (Varivent type F, DN 25) V40 (Varivent type N, DN 40/50) Material certificate O (No certificate, standard) Z (with 3.1 material certificate for 1.4404) Mounting position 1 (Installation from top, head orientation...