FOTEK CPLS-01NB 3-Pin NC/NPN Sensor Proximity

Description

The Fotek CPLS-01NB is a specialized industrial capacitive liquid leakage proximity sensor engineered for rapid detection of fluid accumulation and chemical breaches in containment systems. Utilizing dielectric permittivity differential sensing across its active interface, the unit detects aqueous, solvent, and corrosive chemical liquids immediately upon contact with its baseplate detection zone. Operating across a wide 10 to 30 VDC input range, the sensor features an NPN Normally Closed (NC) solid-state output rated for up to 100 mA. The NC logic architecture provides inherent fail-safe operation, ensuring an alert is triggered in the event of wire break, sensor detachment, or power loss. Encapsulated in chemical-resistant structural polymers and sealed to an IP66 ingress protection rating, the CPLS-01NB delivers continuous measurement stability in washdown, humid, and chemically aggressive processing environments.

Technical Specifications:
Manufacturer: Fotek Controls Co., Ltd.
Model Number: CPLS-01NB
Sensor Technology: Capacitive Dielectric Liquid Leakage Detection
Output Type: NPN Open Collector
Output Configuration: Normally Closed (NC)
Supply Voltage: 10 – 30 VDC
Ripple: < 10% peak-to-peak
Current Consumption: < 15 mA at 24 VDC
Maximum Load Current: 100 mA
Residual Voltage: < 1.0 VDC at 100 mA load
Response Time: < 2 ms
Operating Frequency: 200 Hz
Circuit Protection: Reverse Polarity Protection, Short-Circuit Protection
Indicators: High-Visibility Status LEDs (Power / Output Active)
Ingress Protection: IP66
Housing Material: Chemical-Resistant PBT / Engineering Polymer
Operating Temperature: -20°C to +60°C
Operating Humidity: 35% to 85% RH (non-condensing)
Insulation Resistance: > 20 MΩ at 500 VDC
Dielectric Strength: 1000 VAC, 50/60 Hz for 1 minute
Connection Type: 3-Wire Industrial Cable (Ø 3.8 mm, 3-Conductor)
Weight: 52 g

Industrial Application Profile:
The Fotek CPLS-01NB is optimized for deployment in semiconductor wet benches, automated chemical delivery cabinets, cleanroom fluid dispensing skids, and pharmaceutical formulation lines. In high-density automated production where aggressive fluids such as photoresists, stripping agents, deionized water, or acids flow through pressurized piping, joint failures and valve leaks pose severe operational and safety risks. Positioned at low points in secondary containment pans and drip trays, the sensor detects fluid contact instantaneously, enabling the host programmable logic controller (PLC) to isolate supply valves, initiate exhaust routines, and prevent equipment flooding prior to catastrophic electrical failure.

Integration and Commercial Parameters:
Technical Compatibility: Directly integrates with standard DC sinking I/O modules, distributed automation bus nodes, and safety PLC inputs via standard 3-wire DC wiring (Brown: +VDC, Blue: 0 VDC, Black: Output NPN NC).
Original Engineering: Manufactured to exact OEM specifications, ensuring reliable baseline capacitive sensitivity without requiring external amplification or manual threshold recalibration upon installation.
Procurement and Lead Time: Supported through global industrial supply channels with standard lead time fulfillment for maintenance overhauls, capital machinery builds, and critical spare stock replenishment.

Key Attributes
Mounting Type: Screw type
Model Number: CPLS-01NB
Brand Name: FOTEK
Usage: -
Theory: -
Description: Capacitive Leakage sensor
Type: Capacitive Leakage sensor
Place of Origin: Taiwan, China
Series: CPLS Series
Features: Capacitive Leakage sensor
Output: NPN&NC
Description: Capacitive Leakage sensor
Certification: CE&Rohs

Packaging and Delivery
Selling Units: Single item
Single package size: 11.5X9X4.8 cm
Single gross weight: 0.150 kg