LS331 Flaw Detection Light Meter
Specifically designed for NDT to measure its UV power and visible light illuminance
Specialized for non-destructive testing (NDT)
1,000,000 Lx visible light, 200,000 μW/cm² UV ultra-large range design
Adopt spectral sensor for high accuracy
LS331 is a multifunctional flaw detection light meter, specifically designed for non-destructive testing (NDT). The instrument is equipped with high-precision UV filter and professional UV detector. It can simultaneously measures UV power, visible light illuminance, and correlated color temperature (CCT). It meets the standards for non-destructive testing, penetrant testing, and magnetic particle testing.
Parameter
| Parameter | Value |
|---|---|
| UV spectral response | 315nm-405nm，λp = 365nm |
| UV power measurement range | 0 - 200000 μW/cm² |
| UV power resolution | 0.1 μW/cm² |
| UV power measurement accuracy | H<50μW/cm²: ±5μW/cm²，H>=50μW/cm²: ±10%H, (H is the standard value) |
| UV unit options | μW/cm²(default), mW/cm², W/m² |
| Illuminance measurement range | 0 – 1000000Lx |
| Illuminance resolution | 0.1Lx |
| Illuminance measurement accuracy | ≤±(3%H+2Lx) (H is the standard value, calibrated under CIE standard A light source) |
| Illuminance unit options | Lx (default), FC |
| Correlated color temperature measurement range | 1000 – 100000K |
| Response time | <0.7s |
| Test aperture diameter | Φ21mm |
| Size | 188.5mm*75.2mm*30.3mm (L*W*H) |
| Weight | About 232g (including batteries) |
| Display | 240*160 dot matrix LCD |
| Power supply | 2 AA alkaline dry batteries |
| Operating environment | Temperature 0~40℃, Humidity <85%RH |
| Supply voltage | DC3V |
| Operating current | 20mA |
| Operating power consumption | 60mW |
Features
Designed for NDT lamp, multi-parameter simultaneous measurement
UV power and visible light illuminance, two important parameters of NDT lamp, can be measured at the same time to ensure that the lamp can play an effective role in magnetic particle testing and penetration testing.
Professional UV detector with high-precision UV filter
The UV measurement uses high-precision UV filter and professional UV detector. It almost no response to visible wavelengths, eliminate the impact of other spectral bands on the measurement accuracy. More accurate than ordinary illuminance meter.
High-precision spectral sensor
The instrument is designed with a spectral sensor, and the spectral response matches the V(λ) function. This ensures accurate measurements.
Advanced digital probe technology
The instrument uses advanced digital probe technology, digital signal processing done directly at the probe.This reduces interference and provides excellent measurement accuracy.
Measurement of CCT
Correlated color temperature measurement helps to establish a standardized inspection process, assist in optimizing lighting conditions, improve defect visibility and increase inspection accuracy.
High precision, pass authoritative metrology inspection
The instrument's UV power, visible light illuminance and correlated color temperature measurements are ensured to pass authoritativeinspection.
Intelligent statistics function
Maximum values of UV power and visible light illuminance can be counted intelligently, which is useful for data analysis.
1,000,000 Lx and 200,000 μW/cm² large range
The UV power range of the instrument is up to 200,000 μW/cm², and the visible light range is up to 1,000,000 Lx. With the large range design, the demand for high intensity UV or extreme lighting conditions can be met, and fluorescent materials under strong UV irradiation and subtle defects under strong light can be tested.
Wide selection of units
Instant refresh, response time less than 0.7s
AutoOff can prevent battery drain
Qualifications and Standards
Standards for the product：
JJG 245-2005 Verification Regulation of Illuminance Meter
JJG 879-2015 Verification Regulation of Ultraviolet Radiometers
GBT 5097-2020 Non-destructive testing——Penetrant testing and magnetic particle testing——Viewing conditions
Packing
| No. | Description | Quantity | Unit |
|---|---|---|---|
| 1 | Flaw Detection Light Meter | 1 | pcs |
| 2 | AA Battery | 2 | pcs |
| 3 | User Manual | 1 | pcs |
| 4 | Calibration Report | 1 | pcs |
| 5 | Certificate/Warranty Card | 1 | pcs |
Video
LS331 Flaw Detection Light Meter Operation
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