Sample Interface for Spectroscopic Analyzers

Product Specifications

Technical details and manufacturing context for Sample Interface

Definition

The Sample Interface is a critical component of a Spectroscopic Analyzer that serves as the physical and functional connection point between the sample and the analytical instrument. It ensures proper sample presentation to the optical or sensor system, maintains measurement integrity by controlling environmental factors like light exposure or atmospheric interference, and often includes mechanisms for secure mounting, alignment, and sometimes basic sample preparation or conditioning. This interface is designed to accommodate a range of sample types and conditions, with materials such as stainless steel, aluminum alloy, optical glass, and PTFE (Teflon) to ensure compatibility and durability. Key parameters include an operating pressure range of 1.0–1.6 MPa, a temperature range of -40 to 85 °C, a helium leak rate of ≤1×10⁻⁹ Pa·m³/s (per ISO 3530), a sample flow rate of 0.1–5.0 L/min, connection sizes of 1/4 to 1/2 inch (per ISO 228-1), material grade SS316L (per ASTM A276), seal material PTFE (per ASTM D4894), weight of 0.5–1.2 kg, IP rating of IP54–IP65 (per IEC 60529), and repeatability of ±0.05 mm. These values are reference ranges and must be verified for the specific model and application. The interface is not a standalone product but a component intended for integration into a spectroscopic analyzer system. It is the responsibility of the system integrator or end user to ensure that the interface meets the requirements of their specific analytical application. For procurement, it is essential to confirm model-specific specifications and compliance with relevant standards with the legal manufacturer or supplier. The interface does not include any active electronics or software; it is a passive mechanical component. It is designed to minimize interference with the analytical signal while providing reliable, user-friendly sample loading and unloading. The interface may require periodic maintenance, such as cleaning or replacement of seals, to ensure continued performance. Failure to operate within the specified parameters, such as exceeding the pressure or temperature limits, may lead to seal failure or measurement inaccuracies. Always consult the manufacturer's documentation for detailed installation, operation, and maintenance instructions.

Working Principle

The interface physically receives the sample, often via a holder, stage, or port. It positions the sample at a precise, repeatable location within the analyzer's measurement path (e.g., in the optical beam for spectroscopy). It may incorporate seals, windows, or environmental controls to isolate the sample or the instrument's internal optics. Its design ensures minimal interference with the analytical signal while providing reliable, user-friendly sample loading and unloading.

Common Materials

Stainless Steel, Aluminum Alloy, Optical Glass, PTFE (Teflon)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Temperature Range	-40–85 °C	Outside this range, seal integrity may fail
Leak Rate	≤1×10⁻⁹ Pa·m³/s	Helium leak test at 1.0 MPaISO 3530
Sample Flow Rate	0.1–5.0 L/min	Adjustable via needle valve
Connection Size	1/4–1/2 inch	Compatible with standard fittingsISO 228-1
Material Grade	SS316L	Corrosion-resistant for aggressive samplesASTM A276
Seal Material	PTFE	Chemical compatibilityASTM D4894
Weight	0.5–1.2 kg	Depends on configuration
IP Rating	IP54–IP65	Dust-tight and water-resistantIEC 60529
Repeatability	±0.05 mm	Positioning accuracy for sample alignment

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

Sample Port / Aperture Part
Defines the entry point for the sample, often with a precision-machined opening.

Material: Stainless Steel
Mounting Flange or Thread Part
Provides the mechanical interface for securing sample holders, cells, or accessories to the analyzer.

Material: Aluminum Alloy
Sealing Gasket or O-Ring Part
Ensures an airtight or light-tight seal between the interface and the attached sample holder to prevent contamination or signal interference.

Material: Viton or Silicone Rubber
Protective Window (optional) Optional Part
A transparent barrier (e.g., quartz, sapphire) that protects the analyzer's internal optics from the sample environment while allowing the measurement beam to pass.

Material: Optical Glass or Fused Silica

Applied To / Applications

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

Spectroscopic Analyzer

View system integration details

Manufacturers of Sample Interface

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Frequently Asked Questions

What is the operating pressure range of the Sample Interface?

The operating pressure range is 1.0–1.6 MPa. Above 1.6 MPa may cause seal failure. Always verify the exact limits for your specific model.

What materials are used in the Sample Interface?

The interface is available with materials including stainless steel, aluminum alloy, optical glass, and PTFE (Teflon). The material grade for wetted parts is typically SS316L (per ASTM A276), and the seal material is PTFE (per ASTM D4894). Confirm material compatibility with your sample.

What is the leak rate specification?

The helium leak rate is ≤1×10⁻⁹ Pa·m³/s, tested at 1.0 MPa per ISO 3530. This ensures a high level of sealing integrity for analytical applications.

What is the repeatability of sample positioning?

The repeatability is ±0.05 mm, which ensures precise and consistent sample alignment in the measurement path. This is critical for reproducible spectroscopic measurements.

Data Basis

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Preliminary Technical Classification

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pressure:	0 to 10 bar
other spec:	Flow Rate: 0-5 L/min, Slurry Concentration: ≤30% solids by weight
temperature:	-20°C to 150°C

Sample Interface

Product Specifications

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