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Typical Applications
The PES Series is a strong fit for industrial and commercial leak detection applications, including:
Double-wall tank leak detection
Chemical storage areas
Tank and sump leak monitoring
Dosing pump skids
Data centers and control rooms
Containment areas and drip trays
Process equipment skids
Piping, valves, pumps, and fittings
Acid, base, and chemical handling systems
Reliable Detection for Critical Areas
Leaks can damage equipment, create safety risks, and lead to costly downtime. The LeakPro® PES Series helps facilities detect liquid presence early, giving operators time to respond before a small leak becomes a larger problem.
Because the sensor uses optical photoelectric detection, it is especially useful for applications involving non-conductive liquids, coolants, and chemicals where traditional conductivity-based sensors may not be suitable.
Built for Industrial Environments
The PES Series is available in two housing styles:
PES-40: plated steel body, 0–40 cm sensing range
PES-30: PBT plastic body, 10–30 cm sensing range
Both models are designed for industrial use and include circuit protection for short-circuit and polarity protection.
FAQ
What type of sensor is the PES Series?
The PES Series is a photoelectric leak detection sensor that uses diffuse reflective sensing to detect liquid presence.
Does it work with non-conductive liquids?
Yes. The PES Series is promoted as ideal for non-conductive liquids, making it useful where conductivity-based leak detection may not be appropriate.
What outputs are available?
Depending on the model, PES sensors are available with NPN, PNP, NO, and NC output options.
Where is this sensor commonly used?
Typical uses include double-wall tanks, sumps, chemical areas, dosing pump systems, data centers, containment areas, and process equipment skids.
Technical Specifications
| Specification | PES-40 | PES-30 |
|---|---|---|
| Detection Method | Diffuse Reflection Photoelectric | Diffuse Reflection Photoelectric |
| Sensing Range | 0–40 cm / 0–15.7 in | 10–30 cm / 3.9–11.8 in |
| Supply Voltage | 10–30 VDC | 6–30 VDC |
| Response Frequency | 600 Hz | 500 Hz |
| Current Consumption | 30 mA | 30 mA |
| Load Current | 200 mA | 300 mA |
| Residual Voltage | < 1V | < 1V |
| Circuit Protection | Short Circuit & Polarity Protection | Short Circuit & Polarity Protection |
| Housing Material | Plated Steel | PBT Plastic |
| Protection Rating | IP66 | IP67 |
| Connection | PVC Cable | PVC Cable |
| Available Outputs | NPN / PNP / NO / NC | NPN / NO |
