CD34CNFLFxxx Capacitive sensor, Foreground Suppression Main features • • • • • • • • • Compact housing Supply voltage: 10 to 30 VDC Output: 100 mA, NPN or PNP preset Make or break switching function LED indication for output and power ON Protection: reverse polarity, short circuit and transients Cable and pigtail M8 plug versions Excellent EMC immunity IP65, IP66, IP67, IP68 and IP69K for hose-down applications • cULus • Ecolab Description The CD34.. capacitive sensor is designed for detecting water-based (conductive) liquids through a non-metallic container wall, and it automatically adapts to various thicknesses of plastic or glass walls. The universal mounting brackets allow the sensor to be fixed on various tubes or containers. Strong, compact housing with IP69K ratings and ECOLAB approval for wash-down applications. The sensor will function out of the box in most applications, and teach-in capabilities are available for adapting the sensor to more challenging applications. Main functions • Detection of water-based fluids inside a container or tube without direct contact with the fluids. • The sensor detects the liquids reliably while compensating for residue film, moisture or foam build-up from liquids such as water, milk, body fluids (blood), acid- or alkaline solutions with conductivity as high as 50 mS/cm inside or outside the container wall. • Flexible and fast universal mounting bracket. • The sensing principle detects only the level of the liquids while ignoring foam, film or build-up that would cause standard capacitive sensors to detect faultily.

 References Product selection key CD34CNFLF Enter the code option instead of Code C D 34 C N F L F Description Capacitive sensor Rectangular housing Length of housing Plastic housing Neutral Flush mounting Liquid level Foreground suppression NPN PNP N.O. N.C. 2 m PVC Cable Pigtail PVC Type selection Connection NPN, N.O. NPN, N.C. Cable PNP, N.O. PNP, N.C. NPN, N.O. NPN, N.C. Pigtail PNP, N.O. PNP, N.C. Mounting bracket Carlo Gavazzi Industri A/S

Component Function LED Green LED: Power ON LED Yellow LED: Output 2 M3 Fixing holes for sensor mounting Sensing surface Recessed area for cable strips, max. 5 mm wide Sensing Accuracy Temperature drift Detection liquids Factory settings Manual teach Pipes diameter Out of the box: wall thickness ≤ 20% (-25°C... +80°C) ≤ 20% (-25°C... +60°C) Min. Ø 8 mm Plastic 0.5 - 6 mm (non-conductive plastic wall) Glass 0.5 - 4 mm (non-conductive glass wall) Up to 10 mm plastic wall (best case) With manual setup: wall thickness Up to 10 mm glass wall (best case) Water-based liquids such as water, milk, syrup,...

 Features Power Supply Rated operational voltage (UB) Ripple (Urpp) No load supply current (Io) Power-ON delay (tv) Outputs Output functions Output switching function Rated operational current (Ie) OFF-state current(Ir) PNP and NPN Voltage drop (Ud) Protection NPN or PNP by sensor type N.O. and N.C by sensor type ≤ 100 mA 50 μA < 1 .5 V Short circuit, reverse polarity and transients Control of resistive loads and DC-1 solid-state loads with optical isolation DC-13 Control of electromagnets 330 nF Utilization category Load capacitance max at (Ue) Operation diagram Tv = Power-ON delay Power supply...

 Indication Normal mode Green LED OFF ON ON Output short circuit Green LED ON Output Yellow LED flashes minimum 1 sec. Teach by wire Out of the box (Factory settings): Typically, the sensor can be used without any additional calibration; it is designed to work with plastic tank walls of approximately 0,5 to 6 mm in thickness and glass walls of approximately 0,5 to 4 mm in thickness. It is important that the glass or plastic is nonconductive. Calibration: If the factory settings are insufficient, the sensor is teachable to either Full or Empty. Calibration Full: The sensor switch point is set...

 Green LED Flashes 1Hz Flashes 1Hz NA NA NA Yellow LED OFF ON Flashes 3 times 1Hz Flashes 3 times 1Hz Flashes 10 times 4Hz Output Full calibration (2-7 sec) Empty calibration (7-12 sec) Succesful "full calibration" Succesful "empty calibration" Unsuccesful calibration (cancelled or error) (>12 sec) Vibration Shock Drop test Rated insulation voltage (Ui) Dielectric insulation voltage Rated impulse withstand voltage Pollution degree Overvoltage category Ambient temperature Ambient humidity range Degree of protection NEMA Enclosure Types EMC Electrostatic discharge immunity test Electromagnetic...

 Mechanics/electronics Connection Cable Pigtail NOTE: White wire connected to GND (3BU) wire when not in use BN Brown Housing Body Mounting bracket Light guides Pigtail Dimensions Weight Tightening torque, Sensor Tightening torque, Mounting bracket Screw size PC/PBT PC/PBT Polyamid TR55, Transparent Black TPU (Thermoplastic polyurethane), Stainless steel AISI 304 8 x 16 x 34 mm ≤ 60 g Cable version ≤ 30 g Pigtail version 0.2 Nm 0.2 Nm M3 (with lowered head) Carlo Gavazzi Industri A/

Carlo Gavazzi Industri A/S

 Compatibility and conformity Approvals and markings General reference MTTFd Sensor designed according to EN60947-5-2 and EN60947-1 246 years @ 40°C (+104°F) EN ISO 13849-1, SN 29500 CE-marking Approvals Other Approvals Topax 56, Topaz AC1, Topaz MD3, Topaz CL1, Topactiv OKTO, P3-hypochloran Delivery contents and accessories Delivery contents • • • • • Capacitive sensor: CD34CNFLF… Mounting bracket: ACD34-MB01 2 x Foam pads 3 mm (for pipe mounting) 2 x Adhesive pads 1 mm (for screwless surface mounting) Quick installation guide Further information Information Manual COPYRIGHT ©2023 Content subject...