Industrial Leak Sensor - Conductive Detection, Relay Output

Product Specifications

Technical details and manufacturing context for Leak Sensor

Definition

The Leak Sensor is a component used in industrial leak detection systems to monitor pipelines, tanks, and equipment for liquid leaks. It operates by detecting changes in electrical conductivity, capacitance, or optical properties when liquid contacts the sensor probes, converting this physical change into an electrical signal transmitted to a control system. This enables timely alarms or automated responses to prevent damage, contamination, or safety hazards. The sensor is constructed with a stainless steel probe (grade 316L per ASTM A240), an ABS polymer housing, and copper electrodes. It supports a supply voltage of 12–24 V DC, consumes ≤20 mA at rated voltage, and offers a relay output with normally open or closed contacts selectable. The contact rating is 1–3 A at 250 V AC or 30 V DC. Response time from liquid contact to output change is ≤1 second. Operating temperature range is -20 to 60 °C (non-condensing), and storage temperature is -30 to 70 °C. The ingress protection rating is IP65–IP67 per IEC 60529, indicating dust-tightness and protection against water jets. Cable lengths are available from 2 to 10 meters, with weight ranging from 150 to 300 grams depending on cable length. The detection method is conductive, meaning it relies on the electrical conductivity of the liquid. This sensor is suitable for integration into industrial control systems, but model-specific values and standards must be verified with the legal manufacturer or supplier for the intended application.

Working Principle

The sensor operates by using probes that come into contact with liquid. When a conductive liquid bridges the electrodes, it changes the electrical conductivity or capacitance between them. This change is detected by the sensor's internal circuitry, which then triggers a relay output. The output can be configured as normally open or normally closed, allowing integration with various alarm or control systems. The response time is typically under one second, ensuring rapid detection. The sensor is designed for industrial environments, with a robust housing and corrosion-resistant probe material.

Common Materials

Stainless Steel, Polymer Housing, Copper Electrodes

Technical Parameters

Parameter	Typical range	Notes & selection driver
Detection Method	Conductive	Detects liquid presence via conductivity change
Supply Voltage	12–24 V DC	Reverse polarity protected
Current Consumption	≤20 mA	At rated voltage
Output Type	Relay	Normally open/closed selectable
Contact Rating	1–3 A	At 250 V AC / 30 V DC
Response Time	≤1 s	From liquid contact to output change
Operating Temperature	-20–60 °C	Non-condensing environment
Storage Temperature	-30–70 °C	For long-term storage
Ingress Protection	IP65–IP67	Dust-tight and protected against water jetsIEC 60529
Probe Material	316L	Corrosion-resistant stainless steelASTM A240
Housing Material	ABS	Impact-resistant plastic
Cable Length	2–10 m	Custom lengths available
Weight	150–300 g	Depending on cable length

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Detection Probes
Direct contact with liquid for conductivity/capacitance measurement

Material: stainless steel
Signal Processor
Converts physical detection into electrical output signal

Material: electronic components
Protective Housing
Shields internal components from environmental factors

Material: corrosion-resistant polymer
Output Relay
Passes the alarm on to the plant; the probes only sense.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Leak Detection System

View system integration details

Manufacturers of Leak Sensor

Manufacturer profiles associated with Leak Sensor.

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Frequently Asked Questions

What is the detection method of this leak sensor?

The detection method is conductive, meaning it detects liquid presence by measuring changes in electrical conductivity when a conductive liquid contacts the sensor probes.

What are the electrical specifications?

The supply voltage is 12–24 V DC, current consumption is ≤20 mA at rated voltage, and the output is a relay with normally open or closed contacts selectable. The contact rating is 1–3 A at 250 V AC or 30 V DC.

What is the response time?

The response time from liquid contact to output change is ≤1 second, ensuring quick detection and alarm.

What environmental conditions can it withstand?

The operating temperature range is -20 to 60 °C (non-condensing), and storage temperature is -30 to 70 °C. The ingress protection rating is IP65–IP67 per IEC 60529, indicating dust-tightness and protection against water jets.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 10 bar
other spec:	Flow Rate: 0-5 m/s, Slurry Concentration: <5% solids
temperature:	-40°C to 85°C

Leak Sensor

Product Specifications

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