UV Energy Meter

How to select a suitable UV Energy Meter?

I. Parameters of Linshang UV energy meters

II. Price of UV Energy Meter: A Cost-Effective Choice Compared to Leading Brands

When purchasing a UV energy meter, price is an important factor, but so are accuracy, operating temperature, and additional features. Below, we compare Linshang UV power puck with some well-known brands in the market to highlight the advantages of our cost-effective solutions.

1. Comparison of Kinds of UV Energy Meters

2. Why Choose Linshang UV Energy Meters?

● Fast and Accurate Measurements

With a High-speed acquisition of 2048 samples per second, Linshang UV energy meters provide near-instant results, making them ideal for high-speed UV curing applications.

● Comprehensive Data Analysis

Unlike some competitors that only display basic power values, Linshang UV power meters offer real-time curve display, allowing users to analyze UV intensity changes over time.

● Cost-Effective without Compromising Performance

Compared to EIT Power Puck II, which is significantly more expensive, Linshang meters provide similar accuracy and features at a more affordable price.

● User-Friendly Design

Lightweight, portable, and equipped with an easy-to-read large LCD display, our UV integrator are designed for effortless operation.

● Reliable and Durable

Built with high-quality sensors and high temperature resistant casings, Linshang UV energy meters ensure long-term stability and precise readings.

III. How Do We Use UV Energy Meter?

Ultraviolet energy meter is an instrument used to detect the UV energy of ultraviolet light source in equipment such as curing machine and exposure machine, commonly used in UV curing system, PCB exposure, 3D printing and other industries. It ensures optimal performance, quality control, and safety in processes that rely on UV light exposure.

When putting products into the curing machine for curing, the operator usually does not know how long it needs to be cured, nor how high the uv irradiation intensity needs to be to achieve the desired curing effect. If the irradiation time is too long, it may cause inefficiency and waste of resources. On the other hand, insufficient irradiation time or insufficient irradiation intensity may cause the product to fail to meet the standard.

In addition, the ultraviolet light source itself will be attenuated. If it is not attenuated, it can achieve a satisfying curing effect every time it is operated according to the set conveyor speed and duration. Once the light source is attenuated, the radiation intensity will decrease. Therefore, a professional UV energy meter is needed to detect the UV radiation intensity and the accumulated UV energy value within a certain period of time.

IV.  UV Energy Meter vs. UV Light Meter: What’s the Difference?

When choosing a UV measurement device, many people wonder about the differences between a UV energy meter and a UV light meter. While both instruments measure UV radiation, they serve different purposes. Understanding their distinctions can help you select the right tool for your application.

    1. Definition & Purpose

• UV Energy Meter: Measures the total accumulated UV energy (mJ/cm²) and UV intensity (mW/cm²) over time. It is primarily used in UV curing, industrial processing, and quality control.

• UV Light Meter: Measures instantaneous UV intensity (mW/cm²) at a given moment. It is often used for UV sterilization, environmental monitoring, and photobiological applications.

     2. Key Differences

     3. When to Use Each Device?

     Use a UV Energy Meter if you need to:

• Monitor UV curing efficiency in printing, coating, or adhesive bonding.

• Measure UV exposure over a defined period for quality control.

• Evaluate the performance of UV LED curing systems.

     Use a UV Light Meter if you need to:

• Assess UV sterilization effectiveness in hospitals or clean rooms.

• Measure UV intensity in environmental monitoring.

• Ensure workplace UV safety compliance for workers.

While UV energy meters and UV light meters both measure UV radiation, they serve distinct functions. If your focus is UV curing and industrial applications, a UV energy meter is essential for tracking energy exposure over time. However, if you need to monitor instantaneous UV intensity for safety or sterilization, a UV light meter is the right choice.

V.  Frequently Asked Questions

1. Do you have traceable reports or calibration certificates?

• Linshang UV energy meter comes with a factory calibration report to ensure the accuracy of the data.

• LS120 and LS136 UV energy meters suitable for detecting high-pressure mercury lamps are in compliance with Chinese national standards and can pass the inspection of authoritative measurement agency (which has been approved by CNAS and ilac-MRA). The cost of the calibration certificate is charged separately

• There is no national standard for UV energy meters suitable for detecting LED light sources. UV energy meter suppliers use their own standards to calibrate UV energy meters. 

2. Why are the UV energy meter be divided as applicatble to mercury lamps and UV LED? 

• The spectrum of the mercury lamp and the LED light source are different. We need to choose the instrument with the spectral response range that matches the spectrum of the light source. Otherwise the measured data is not accurate.

• Most of the UV energy meters on the market are designed for high pressure mercury lamps. They are only suitable for measuring the energy and intensity values at 365nm wavelength. The LED light source has various bands such as 365 nm, 385 nm, 395 nm,  405 nm, etc. For LED light sources, LED-specific UV energy meters are required.

3. The UV energy meter that test UV LED light sources are all calibrated at 395nm. Is the data for testing 365nm LED light sources accurate?

• The spectral response curve of the UV energy meter is very stable between 365nm and 405nm. No matter what band the LED is, the accuracy is the same within this range. 

• The UV energy meter for LED light sources does not have uniform standards, when measuring LED light sources,  UV energy meters of different brands may get different data. Actually we should pay more attention to the stability and consistency of the test data.

• As a professional UV energy meter supplier, Linshang Technology has established strict factory inspection specifications to ensure that the data can meet the manufacturer's standard when detecting the 365-405nm LED light source.

4. What is the difference between the data of Linshang LS120 and LS128 UV energy meters and EIT? 

• According to our experience, when comparing the UVICURE Plus II with LS120 UV energy meter to test the same high pressure mercury lamp under the same test condition,  test data of LS120 is about 10%-40% lower. But the data of LS120 UV energy meter conforms the relevant regulations and standards in China, and can pass the inspection of authoritative measurement agency (which has been approved by CNAS and ilac-MRA)

• By now there is no relevant standard in the UV LED industry. The UV energy meter for LED are calibrated by factory standards and the data between different brands is indeed different. 

5. UV Energy Meter Calibration

• Many customers often ask "Can Linshang UV energy meter pass the inspection and how often does the instrument need to be calibrated?" The UV energy meter is usually recommended to be calibrated once a year. UV energy meter for mercury lamp currently has a unified Chinese standard.  Linshang ultraviolet energy meter for mercury lamps can pass the test of Chinese Institute of Metrology. The ultraviolet energy meter with a spectral response range of 315-400nm is calibrated using high-pressure mercury lamp with a peak wavelength of 365nm. The technical basis for calibration is "JJG 879-2015 Verification Regulation of Ultraviolet Radiometer".

• However, there is no national or international standard for LED ultraviolet energy meters. Therefore, if the metrology institute uses other light source standards for verification at the time of inspection, there will be a large data deviation.

6. Why is my UV energy meter showing lower values than expected?

    Several factors can affect UV readings:

• Lamp Aging – UV lamps degrade over time, reducing output.

• Dirty or Damaged Sensor – Clean the sensor regularly for accurate readings.

• Wavelength Mismatch – Use a meter with the correct spectral sensitivity for your UV source.

7. What industries require UV energy meters?

    UV energy meters are widely used in:

• Printing & Coating – Ensuring proper UV curing of inks and coatings.

• Electronics Manufacturing – Monitoring UV bonding and photolithography.

• Automotive & Aerospace – UV paint and component curing.

• Research & Material Testing – UV degradation studies and photochemical reactions.