Linshang LS137 UV Energy Meter for Electronics Manufacturing and PCB Production Malaysia

Linshang LS137 UV Energy Meter for Electronics Manufacturing and PCB Production Malaysia

UV LED technology is increasingly used in electronics manufacturing for processes such as adhesive curing, component bonding, UV coating and other light-curing applications.

In these processes, simply setting the UV curing machine to a particular power percentage does not necessarily confirm the actual UV exposure reaching the product.

The Linshang LS137 UV Energy Meter provides a practical way to measure UV energy, UV irradiance and temperature in UV LED curing systems.

For electronics manufacturers in Malaysia, these measurements can support process verification, production consistency, preventive maintenance and troubleshooting.

Why UV Measurement Matters in Electronics Manufacturing

Electronics production often involves small components, tight tolerances and controlled manufacturing processes.

UV curing conditions can potentially affect:

Adhesive curing

Component bonding

Coating performance

Production consistency

Cycle time

Product reliability

Reject rates

When UV curing is part of the production process, maintaining consistent UV exposure becomes an important quality-control consideration.

Typical UV LED Applications in Electronics

UV LED curing may be found in applications such as:

PCB manufacturing

Electronic component bonding

UV adhesive curing

Connector assembly

Sensor assembly

Camera module assembly

Optical component bonding

Display manufacturing

UV coating processes

Precision assembly

Different applications may use different wavelengths and exposure requirements.

Therefore, the UV source specification should always be confirmed before selecting a measurement instrument.

Why Use the Linshang LS137?

The Linshang LS137 is specifically designed for UV LED light sources.

Its spectral response covers approximately:

340–420 nm

The instrument is calibrated using a:

395 nm UV LED source

This makes it particularly relevant for industrial UV LED curing applications operating around commonly used UVA LED wavelengths.

What Can the LS137 Measure?

The LS137 provides several useful measurements during a UV curing cycle:

UV Energy

UV Irradiance

Peak UV Irradiance

Measurement Duration

Temperature

Maximum Temperature

Together, these parameters provide a clearer picture of the curing process than machine power settings alone.

UV Energy and UV Irradiance Are Different

This distinction is particularly important in production engineering.

UV Irradiance

UV irradiance tells you the instantaneous strength of the UV radiation reaching the detector.

It is commonly expressed in:

mW/cm²

UV Energy

UV energy represents the accumulated exposure received over time.

It is commonly expressed in:

mJ/cm²

For a curing process, both measurements may be important.

Example: PCB Production

Consider a PCB manufacturing process that uses UV LED curing.

The machine has been operating successfully for several months.

Eventually, QA notices a change in the curing result.

Several possible causes exist:

UV LED output has decreased

Exposure time has changed

Product position has changed

Optical surfaces are contaminated

Cooling performance has changed

Material formulation has changed

Without UV measurement, engineers may have difficulty determining where to begin.

With historical LS137 measurements, current UV exposure can be compared against known-good production conditions.

Example: Electronic Component Bonding

Suppose a manufacturer uses UV-curable adhesive to secure an electronic component.

The curing process specifies:

A particular UV wavelength

Fixed exposure time

Fixed UV power setting

Controlled component position

Even if these machine settings remain unchanged, actual UV output can vary over time.

By periodically measuring the UV source, production engineers can verify whether the curing conditions remain comparable with the original qualified process.

Machine Power Percentage Is Not a Measurement

A common mistake is to treat the machine's UV power setting as the actual UV irradiance.

For example:

UV Power: 80%

This is a machine setting.

It does not necessarily mean:

80% of the original measured UV output is reaching the product.

Actual exposure can also be influenced by:

UV LED condition

Optical contamination

Cooling

Lamp distance

Machine geometry

Driver performance

An external UV energy meter provides an independent measurement.

High-Intensity UV LED Measurement

Industrial UV LED curing systems can produce high irradiance.

The Linshang LS137 supports UV irradiance measurement up to:

40,000 mW/cm²

This makes it suitable for many high-intensity industrial UV LED curing applications within its specified operating conditions.

Why Exposure Time Matters

Imagine two electronic components passing through the same UV curing system.

Component A remains underneath the UV source for five seconds.

Component B remains underneath the same source for two seconds.

Even if peak UV irradiance is identical, the accumulated UV energy can be different.

This is why curing quality cannot always be evaluated using intensity alone.

Production Speed vs UV Energy

Automated electronics factories continuously look for ways to reduce cycle time.

Suppose a process is accelerated from:

10 seconds per component

to:

7 seconds per component

Production output improves.

But has sufficient UV energy still been delivered?

Measurement can help answer this question.

Engineers can compare the accumulated UV energy before and after the cycle-time reduction and then evaluate the corresponding product quality.

Measuring After Maintenance

UV measurement is particularly useful after:

UV LED module replacement

Machine servicing

Optical cleaning

Fixture modification

Conveyor adjustment

Cooling-system maintenance

Power-supply replacement

After maintenance, a measurement can help verify that the curing system has returned to the expected operating condition.

Establishing a Golden UV Baseline

Electronics manufacturers often work with controlled process parameters.

UV exposure can be treated in a similar way.

When production quality is confirmed to be acceptable, record a known-good UV baseline.

The record can include:

UV wavelength

Peak UV irradiance

Accumulated UV energy

Exposure duration

Maximum temperature

UV power setting

Distance

Product

Adhesive or coating type

Production result

This baseline can then be used for future comparison.

Comparing Multiple Production Lines

Consider a factory operating three similar curing stations.

All three are set to:

395 nm UV LED

and

80% power

Are they producing identical UV exposure?

Not necessarily.

Differences can develop because of:

UV LED operating hours

Cooling efficiency

Optical cleanliness

Equipment condition

Mechanical positioning

The LS137 can be used to obtain actual measurement data from each station.

This helps engineers compare production lines more objectively.

Troubleshooting Inconsistent Curing

A systematic approach can reduce unnecessary trial and error.

Step 1 – Identify the Defect

Determine whether the issue involves:

Incomplete cure

Weak bonding

Coating problems

Inconsistent production results

Step 2 – Verify Machine Settings

Check:

UV power

Exposure time

Distance

Product position

Production speed

Step 3 – Measure UV Conditions

Measure UV intensity and accumulated energy.

Step 4 – Compare with Baseline

Determine whether the UV curing conditions have changed.

Step 5 – Investigate Other Variables

If UV readings remain normal, investigate:

Adhesive

Coating material

Dispensing process

Substrate

Component preparation

Material storage

Measurement helps narrow the investigation.

UV LED Aging and Preventive Maintenance

A UV LED module may continue to operate while its output gradually changes.

Periodic measurement can reveal a trend before curing performance becomes unacceptable.

For example:

New machine → Baseline measurement

3 months → Check

6 months → Check

12 months → Check

The appropriate frequency depends on the criticality and usage of the process.

The important point is to build historical measurement data.

Temperature Monitoring

The LS137 can also record temperature and maximum temperature.

Temperature information can be useful when evaluating curing environments because electronics components and production materials may have thermal limitations.

UV measurement combined with temperature data provides additional information about the process.

LS137 for 395 nm UV LED Electronics Applications

Because the LS137 is calibrated using a 395 nm UV LED source, it is particularly relevant to electronics manufacturers operating 395 nm curing equipment.

Before ordering, however, always confirm:

UV wavelength

UV source type

Expected intensity

Available measurement space

Application requirements

The instrument should be selected according to the actual process.

LS137 vs LS136

Do not confuse UV LED curing equipment with traditional UV mercury-lamp equipment.

A simple model-selection guideline is:

UV LED → Consider Linshang LS137

Traditional high-pressure mercury UV lamp → Consider Linshang LS136

The correct detector depends on the spectral characteristics of the light source.

Who Should Use a UV Energy Meter?

Within an electronics manufacturing facility, potential users include:

Process engineers

Production engineers

QA engineers

QC technicians

Maintenance engineers

Equipment engineers

R&D departments

Process-development teams

The meter can support both initial process development and ongoing production monitoring.

A Better Approach to UV Process Control

Instead of relying only on:

Machine Setting = 80%

a stronger process-control approach is:

Set → Measure → Record → Compare → Verify

This turns UV curing from a machine setting into a measurable production parameter.

Looking for Linshang LS137 for Electronics Manufacturing in Malaysia?

MTM Precision supplies industrial testing and measurement instruments for Malaysian manufacturing, engineering, maintenance and quality-control applications.

If your electronics factory uses UV LED curing, provide us with:

UV wavelength

UV curing equipment model

UV source type

Application

Expected UV intensity

Exposure time

We can assist you in determining whether the Linshang LS137 UV Energy Meter is suitable for your production process.

Contact MTM Precision

MTM Precision Sdn. Bhd.

Showroom & Service Centre

No. 29-1 & 29-2, Jalan Bandar 18,