Probe Head Interface

Product Specifications

Technical details and manufacturing context for Probe head interface

Definition

The probe head interface serves as the critical connection hub within a multi-sensor probe head, facilitating the transmission of power, control signals, and data between the probe's internal sensors (e.g., temperature, pressure, flow) and external monitoring, control, or data acquisition units. It ensures signal integrity, provides physical mounting, and often includes features for environmental sealing and electrical isolation. The interface typically consists of a multi-pin connector (electrical) and a mounting flange (mechanical). Electrically, it routes analog or digital signals from the embedded sensors to external cables. Mechanically, it provides a secure, aligned, and often sealed attachment point for the probe head to its housing or process connection. Materials on file include stainless steel for the housing, gold-plated brass for contacts, and silicone rubber for seals. Key parameters to verify for a specific model include number of pins (12–24), rated current per pin (1–3 A), rated voltage (24–60 V DC), contact resistance (≤10 mΩ), insulation resistance (≥100 MΩ at 500 V DC), operating temperature (-40 to 85 °C), IP rating (IP54–IP65 per IEC 60529), mating cycles (500–1000), connector type (M12–M16 per IEC 61076-2-101), housing material (stainless steel 304 per ASTM A276), and weight (50–150 g). These values are reference ranges; always confirm with the manufacturer for the intended application. The interface is designed for industrial environments, but its performance depends on correct installation and maintenance. Verify that the connector type and pin configuration match the mating cable and that the IP rating suits the environmental exposure. Regular inspection for seal integrity and contact wear is recommended. Failure to maintain proper sealing or electrical isolation can lead to signal degradation or equipment damage.

Working Principle

The interface provides a standardized electrical and mechanical connection. Electrically, it uses a multi-pin connector to route power and signals between the probe's sensors and external systems. Each pin is rated for a certain current and voltage, and contact resistance is kept low to preserve signal integrity. Mechanically, a mounting flange ensures secure attachment and alignment, with seals providing environmental protection. The design allows for repeated mating cycles, and the connector type (e.g., M12) ensures compatibility with standard cables.

Common Materials

Stainless Steel (housing), Gold-plated Brass (contacts), Silicone Rubber (seals)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Number of Pins	12–24 pins	Determines signal and power capacity.
Rated Current per Pin	1–3 A	Higher current requires larger pin gauge.
Rated Voltage	24–60 V DC	Exceeding may cause arcing or insulation failure.
Contact Resistance	≤10 mΩ	Lower is better for signal integrity.
Insulation Resistance	≥100 MΩ	At 500 V DC test voltage.
Operating Temperature	-40–85 °C	Outside range may affect sealing and materials.
IP Rating	IP54–IP65	Higher rating for dusty or wet environments.IEC 60529
Mating Cycles	500–1000 cycles	Affects long-term reliability.
Connector Type	M12–M16	Thread size determines mechanical fit.IEC 61076-2-101
Housing Material	Stainless steel 304	Corrosion resistance for industrial environments.ASTM A276
Weight	50–150 g	Affects probe head dynamics.

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

Connector Body Part
Houses the electrical contacts and provides structural integrity and environmental sealing.

Material: Stainless Steel or Engineering Plastic
Contact Pins/Sockets Part
Provide the electrical conduction path for signals and power.

Material: Gold-plated Brass or Phosphor Bronze
Sealing Gasket/O-ring Part
Creates a seal between the interface and its mating part to prevent ingress of fluids or contaminants.

Material: Silicone Rubber, Viton, or EPDM
Mounting Flange
The mechanical half of the interface — it locates and secures the probe head.

Applied To / Applications

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

Multi-sensor Probe Head

View system integration details

Manufacturers of Probe head interface

Manufacturer profiles associated with Probe head interface.

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Frequently Asked Questions

What is the purpose of the probe head interface?

It provides the electrical and mechanical connection between the multi-sensor probe head and external systems, enabling power, signal, and data transmission while ensuring physical mounting and environmental sealing.

What parameters should be verified before selecting an interface?

Key parameters include number of pins, rated current and voltage, contact resistance, insulation resistance, operating temperature, IP rating, mating cycles, connector type, housing material, and weight. Always confirm these with the manufacturer for your specific application.

How does the interface ensure signal integrity?

It uses low contact resistance (≤10 mΩ) and proper insulation (≥100 MΩ) to minimize signal loss and prevent electrical interference. The connector design also maintains consistent contact pressure.

What maintenance is required for the interface?

Regularly inspect seals for damage, check contacts for wear or corrosion, and ensure the connector is properly mated. Replace worn seals or contacts as needed to maintain IP rating and electrical performance.

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
flow rate:	0 to 5 m/s
temperature:	-20°C to 85°C
slurry concentration:	0 to 30% solids by weight

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