LS126A UVA Light Meter with Miniature Probe
Miniature-probe UVA measurement
The LS126A is a UVA irradiance meter designed for UVA LED sources. Its compact probe helps measure irradiance and energy dose in confined spaces, inside equipment, or at recessed test positions where a conventional sensor may not fit. The small probe can be positioned close to the source to support repeatable checks in production and process qualification.
Applications
- UVA LED spot sources and UV curing systems
- UV exposure equipment and IC lithography processes
- Measurements inside machines, fixtures, and other restricted spaces
- Routine monitoring of UVA irradiance and energy dose
Measurement guidance
Before testing, confirm that the probe response matches the source wavelength. Choose a suitable measurement distance and aperture, keep the probe aligned consistently, and follow the same process conditions for comparable readings. Contact Fulcrum Technology for assistance selecting a measurement setup.
LS126A
LS126A UVA Light Meter Specifications
Use these specifications to confirm the measurement setup. Check the source, distance, and process requirements before selecting a configuration.
| Model | LS126A UVA Light Meter |
|---|---|
| Spectral response | 340–420 nm, calibrated with a 395 nm LED |
| Irradiance range | 0–20,000 μW/cm² |
| Irradiance resolution | 1 mW/cm² |
| Energy range | 0–9,999,999 mJ/cm² |
| Logging time | 0–99,999 s |
| Accuracy | H < 50 mW/cm²: ±5 mW/cm²; H ≥ 50 mW/cm²: ±10%H (H is the standard value) |
| Sampling rate | 2,048 readings/s |
| Units | mW/cm² (default), W/cm², W/m² |
| Aperture diameter | Φ3 mm |
| Probe dimensions | 36 mm × 7.2 mm × 4.7 mm |
| Main unit dimensions | 170 mm × 76 mm × 26 mm |
| Probe cable length | 0.8 m |
| Weight | Approx. 232 g, including batteries |
| Display | 240 × 160 dot-matrix LCD |
| Battery | 4 AAA alkaline batteries |
| Note | The LS126A is primarily designed for UVA LED sources and measurements in confined spaces. Specifications may be updated; refer to the manufacturer or Fulcrum Technology product information. Confirm wavelength, range, aperture, distance, and quality-control requirements for your application. |
LS126A Operation Video
UVA Irradiance Measurement with the Miniature Probe
This video provides an introduction to operating the LS126A UVA light meter and taking measurements. The LS126A is suited to UVA LED sources, UV curing, exposure, and confined-space measurements. Confirm wavelength, measurement range, aperture, distance, and quality-control requirements for the actual application.