Metal-Structure Contact Level Sensor with NPN+PNP Dual Output
1. Why You Need It
Industrial and OEM equipment builders need a rugged, flexible level sensor that can drive both sinking and sourcing inputs while standing up to viscous media. This metal-structure contact level sensor provides NPN+PNP dual output, a PEEK/316L contact probe and a wide -25 to 120 °C operating range. With OEM customization and a 1-year warranty, it is the dependable level-sensing component for high-viscosity process equipment and integrated machines.
2. Working Principle
The sensor detects high-viscosity material through contact sensing at its metal/PEEK probe, switching its output when the medium reaches the set point. The NPN+PNP dual output lets it interface with both sinking and sourcing PLC inputs without additional circuitry. The 316L/PEEK construction resists viscous media, the -25 to 120 °C range covers broad process conditions, and the OEM customization tailors range, output and connection to the integrator's design.
3. Key Advantages
- Contact-type level detection
- NPN + PNP dual output
- Metal PEEK/316L structure
- High-viscosity media capable
- -25 to 120 °C operating range
- 100 mA max output current
- OEM customization service
- 1-year warranty
- Rugged metal construction
- Suitable for equipment integration
Common Pain Points & Solutions
| Problem | Conventional Issue | Our Solution | Result |
|---|
| Dual PLC input types | Single-output mismatch | NPN+PNP dual output | Fits sinking and sourcing |
| High-viscosity media | Floats and rods fail | Contact sensor | Reliable viscous detection |
| OEM integration | Off-the-shelf mismatch | OEM customization | Fit-for-purpose design |
| Wide temperature | Sensors limited in range | -25 to 120 °C | Broad temperature coverage |
Application Cases
Industry: Machinery
Application: Equipment level sensing
Medium: High-viscosity fluid
Pressure Range: Atmospheric
Operating Temperature: -25 to 120 °C
Installation Environment: OEM machine
Customer Challenge: Embedded level detection
Previous Problem: Generic sensor mismatch
Solution: NPN+PNP contact sensor
Installation Location: Machine tank
Result: Integrated level sensing
Industry: Industrial
Application: Viscous process tank
Medium: Adhesive / grease
Pressure Range: Atmospheric
Operating Temperature: 0 to 120 °C
Installation Environment: Process plant
Customer Challenge: Reliable viscous level
Previous Problem: Float switch failure
Solution: Metal contact sensor
Installation Location: Process tank
Result: Reliable level control
Industry: Automation
Application: Machine media reservoir
Medium: Oil / viscous fluid
Pressure Range: Atmospheric
Operating Temperature: -25 to 80 °C
Installation Environment: Automated line
Customer Challenge: Reservoir level monitoring
Previous Problem: Single-output sensor
Solution: Dual-output contact sensor
Installation Location: Reservoir
Result: Flexible PLC integration
Industry: OEM
Application: Integrated equipment build
Medium: Viscous media
Pressure Range: Atmospheric
Operating Temperature: 0 to 120 °C
Installation Environment: Equipment build
Customer Challenge: Custom level sensing
Previous Problem: Off-the-shelf limits
Solution: OEM-customized sensor
Installation Location: Equipment
Result: Custom-fit level sensing
Technical Specifications
| Specification | Value |
|---|
| Product Type | Metal-structure contact level sensor |
| Output | NPN + PNP dual |
| Structure | PEEK / 316L stainless steel |
| Operating Temperature | -25 to 120 °C |
| Output Current | 100 mA max |
| Detection Object | High-viscosity material |
| Customization | OEM |
| Warranty | 1 year |
FAQ
Q: What is a metal-structure contact level sensor?
It is a level sensor with a rugged metal/PEEK contact probe that detects high-viscosity material through contact sensing. Its NPN+PNP dual output makes it a flexible choice for industrial and OEM equipment.
Q: What is the advantage of NPN+PNP dual output?
Dual output means the sensor can drive both sinking (NPN) and sourcing (PNP) PLC inputs without additional interface circuitry. This flexibility simplifies integration into different control systems and reduces the number of sensor variants needed.
Q: What media can it detect?
It detects high-viscosity materials such as adhesives, grease and thick oils. The PEEK/316L contact structure resists these viscous media and provides reliable switching.
Q: What is the operating temperature range?
It operates from -25 to 120 °C, covering cold storage, ambient and elevated process temperatures. This wide range suits a broad range of industrial and OEM applications.
Q: Is OEM customization available?
Yes. The sensor supports OEM customization, allowing integrators to specify the range, output, connection and labeling to match their equipment design. This makes it ideal for embedded level sensing.
Q: What is the warranty?
It comes with a 1-year warranty, providing assurance of quality and reliability for industrial and OEM deployments.
Q: What is the maximum output current?
The maximum output current is 100 mA, sufficient to drive relays and PLC inputs directly. For heavier loads, an interface relay should be used.
Q: How is it installed?
It is installed with the contact probe extending into the medium, and the NPN/PNP output wired to the PLC or relay. For OEM applications, it is specified at the design stage to integrate with the equipment.
Q: How does it differ from a float switch?
A float switch uses a moving float that can jam in viscous media, whereas this contact sensor has no moving parts to stick. This makes it more reliable for high-viscosity materials such as adhesives and grease.
Q: Where is it used?
It is used in OEM machinery, viscous process tanks, automated line reservoirs and integrated equipment builds. It provides flexible, reliable level detection for high-viscosity media.
