Description

The XM279C is a small heat flux sensor for performing reliable measurements under controlled conditions. In the world of heat flux thermopiles, this is a relatively low-sensitivity but high-spatial-resolution< sensor. Because the signal output is quite small, it is best suited for environments with high heat transfer rates or applications where space is extremely limited. Available with 1m lead and TEG connector for connection to a DLOG data logger for standalone heat flux, or U-Value, monitoring.

Features

• Ultra-high resolution of thermal energies and temperature differences.
• Low invasiveness and thickness.
• Models with connector compatible with all gSKIN®DLOG Data Loggers.
• All sensors with conductive heat flux calibration cohering to ISO 8301.
• Applications: R&D, thermal optimization, energy efficiency, industrial monitoring of thermal properties.

Applications

1. Electronics Cooling & Microelectronics – With a sensing area of only 4.4 x 4.4mm, this sensor is perfectly sized to sit atop integrated circuits (ICs), CPUs, or power transistors. Ideal for measuring the real-time thermal discharge of specific components on a PCB.
2. High-Flux Industrial Processes – Low-sensitivity sensors are often more robust and can handle higher energy densities without saturating the data acquisition system. Ideal for monitoring heat loss through industrial furnace walls, boilers, or chemical reactors.
3. Materials Science (Thermal Conductivity) – This sensor can be used in “Heat Flow Meter” apparatuses to determine the thermal properties of small material samples. Ideal to testing the effectiveness of new thermal interface materials (TIMs) or thin-film insulators.

Specifications

Product: gSKIN® XM
Detector Type: Thermoelectric
Surface Material (Sensing Area): Aluminum
Article Number: A-044339
Sensing Dimensions: 4.4 x 4.4 x 0.5mm
Heat Flux Range Min / Max: -150 / 150kW/m²
Heat Flux Range Min / Max: -150 / 150kW/m²
Noise Equivalent Heat Flux per area / absolute: 0.340W/m² / 6.6µW (Experimentally evaluated values under optimal steady state conditions).
Heat Flux Resolution per area with gSKIN® DLOG / absolute: 0.41W/m² / 7.9µW (Guaranteed minimum heat flux resolution using the gSKIN® DLOG-4219).
Temperature Difference Resolution: ~140µK
Response Time (0-95%): 0.7 Secs
Min. /Avg. Sensitivity (S): 1.5μV/(W/m²) (Only a reference point).
Max. Compressive Force when clamped: < 2Kgf
Electrical Resistance: < 20 Ohms
Thermal Conductivity: ∼1.1W/(m*K)
Linearity with Power: ±1%
Operating Temperature Range Min/Max: -50°C / 150°C
Calibration Accuracy: ±3%
Calibration Temperature Range Min/Max: -30°C / 70°C (Conductive heat flux calibration cohering to the ISO8301 standard with mean temperature of 22.5°C).
Flexprint Length: 5cm
Temperature Dependence of S: 0.25%/°C
Homogeneity: ±1% (The sensitivity increases or decreases as the temperature goes above or below 22.5°C). Position dependent signal change across sensing area.
Termination: 1m cable with TEG connector.