Condensation, damp surfaces and excessive indoor humidity are common problems encountered during building inspection, facility maintenance and HVAC troubleshooting.

 

In Malaysia's warm and humid climate, moisture-related problems can appear around air-conditioned rooms, windows, walls, ceilings, pipes and other cooler surfaces.

 

Before deciding on the cause, technicians should obtain actual environmental measurements.

 

The TASI TA622C Digital Thermo-Hygrometer measures temperature, relative humidity, dew point and wet bulb temperature and features a separate measurement probe, making it useful for portable building environmental inspection in Malaysia.

 

Why Measure Temperature and Humidity During Building Inspection?

 

A room may look dry during an inspection but experience high humidity at other times.

 

Likewise, condensation may occur only under certain environmental conditions.

 

Possible factors include:

 

High indoor relative humidity

 

Cold air-conditioned surfaces

 

Outdoor humid air entering the building

 

Poor ventilation

 

HVAC operating conditions

 

Temperature differences between rooms

 

Air leakage

 

Changes in occupancy

 

Weather conditions

 

Measuring temperature and relative humidity provides useful information before investigating the building or HVAC system further.

 

What Can the TASI TA622C Measure?

 

The TASI TA622C provides four environmental measurements:

 

Temperature

 

Relative Humidity (RH)

 

Dew Point Temperature

 

Wet Bulb Temperature

 

The specified temperature measurement range is -40°C to 80°C.

 

Relative humidity measurement covers 0 to 100%RH.

 

Temperature accuracy is specified at ±0.5°C, while relative humidity accuracy is ±3%RH within 10–90%RH.

 

These parameters make the TA622C useful for environmental inspection where both temperature and moisture conditions need to be evaluated.

 

What Is Dew Point?

 

Dew point is the temperature at which air becomes saturated with moisture under the existing conditions.

 

When a surface becomes sufficiently cold relative to the surrounding air, moisture can begin to condense on that surface.

 

This is why dew point can be useful when investigating condensation.

 

For example, a technician may observe moisture around:

 

Air-conditioning diffusers

 

Windows

 

Cold pipes

 

Metal surfaces

 

Walls

 

Ceiling areas

 

Equipment

 

The TA622C displays dew point temperature directly, providing additional information during the investigation.

 

Why Relative Humidity Alone May Not Be Enough

 

Relative humidity is important, but it does not always explain why condensation occurs at a particular location.

 

Two areas may have similar RH readings but different surface temperatures.

 

This is why technicians may need to consider:

 

Air temperature

 

Relative humidity

 

Dew point

 

Surface temperature

 

The TA622C provides the first three environmental parameters.

 

When actual surface temperature measurement is required, an appropriate contact thermometer or infrared thermometer may also be useful.

 

Investigating Condensation Around Air-Conditioning Outlets

 

Air-conditioning outlets can be significantly cooler than the surrounding room.

 

If warm humid air reaches a sufficiently cold surface, condensation may develop.

 

The TA622C's separate probe can be positioned near the air-conditioning outlet to measure local temperature and humidity conditions.

 

Technicians can then compare measurements between:

 

Supply air area

 

Return air area

 

Room centre

 

Near the affected surface

 

Other unaffected areas

 

These comparisons can provide useful information for further HVAC troubleshooting.

 

Separate Probe for Difficult Measurement Locations

 

The TASI TA622C uses a separate temperature and humidity probe.

 

This allows the probe to be positioned close to the required measurement point while the main meter remains easy to view.

 

This can be useful when inspecting:

 

Ceiling areas

 

Air-conditioning diffusers

 

Behind furniture

 

Corners

 

Equipment cabinets

 

Restricted spaces

 

Different measurement heights

 

Areas near walls

 

The remote probe configuration gives building inspectors and technicians more flexibility during environmental investigations.

 

Check Different Rooms and Building Zones

 

Temperature and humidity may differ significantly between different parts of a building.

 

Portable measurements can be taken in:

 

Offices

 

Meeting rooms

 

Hotel rooms

 

Corridors

 

Storage rooms

 

Server rooms

 

Electrical rooms

 

Basements

 

Laboratories

 

Commercial spaces

 

Comparing different locations can help determine whether a moisture problem is isolated or more widespread.

 

Wet Bulb Temperature

 

The TASI TA622C also provides wet bulb temperature.

 

Wet bulb measurement provides additional information about the relationship between temperature and moisture in the air.

 

This can be useful for HVAC contractors and facility management personnel carrying out broader environmental assessments.

 

Data Recording for Intermittent Condensation Problems

 

Condensation may not occur continuously.

 

For example, it may appear:

 

Early in the morning

 

During heavy rain

 

When air-conditioning starts

 

After doors are opened

 

During periods of high occupancy

 

When outdoor humidity increases

 

A single measurement may therefore miss the condition that causes the problem.

 

The TASI TA622C provides data recording capability and USB PC communication.

 

Recorded environmental measurements can help technicians investigate how temperature and humidity change over time.

 

MAX / MIN / AVG Functions

 

The TA622C provides MAX / MIN / AVG functions.

 

These allow users to review the maximum, minimum and average environmental readings during an inspection period.

 

High and low limit alarm functions are also available to help identify measurements outside predetermined limits.

 

Can TA622C Detect Water Leakage?

 

No.

 

The TA622C measures environmental temperature and humidity.

 

It does not directly detect water inside a wall, floor or building material.

 

If the suspected problem involves moisture within materials, additional instruments such as a moisture meter may be required.

 

For a complete investigation, technicians may use several instruments depending on the problem.

 

TA622C vs Moisture Meter

 

These instruments measure different things.

 

A thermo-hygrometer such as the TASI TA622C measures environmental air conditions.

 

A moisture meter is designed to evaluate moisture in materials such as wood, walls or other building materials, depending on the instrument.

 

Therefore:

 

TA622C → Air temperature and humidity

 

Moisture Meter → Material moisture

 

Both can be useful during a building moisture investigation.

 

TA622C vs Infrared Thermometer

 

An infrared thermometer measures the surface temperature of an object.

 

The TA622C measures the environmental air condition.

 

When investigating condensation, technicians may find it useful to know both:

 

Environmental dew point

 

Actual surface temperature

 

For this reason, a TA622C and an infrared thermometer can complement each other during condensation troubleshooting.

 

Who Can Use the TASI TA622C?

 

Potential users include:

 

Building inspectors

 

Facility management companies

 

HVAC contractors

 

M&E contractors

 

Building maintenance teams

 

Property management companies

 

Hotels

 

Commercial buildings

 

Factories

 

Engineering consultants

 

Maintenance technicians

 

It can be used for both routine environmental checks and troubleshooting.

 

Is TASI TA622C Suitable for Condensation Troubleshooting?

 

Yes.

 

The combination of temperature, relative humidity and dew point measurement makes the TA622C useful when investigating environmental conditions associated with condensation.

 

Its separate probe also allows technicians to check specific locations such as air-conditioning outlets and restricted areas.

 

However, identifying the actual cause of a building moisture problem may require additional inspection and other measurement instruments.

 

Frequently Asked Questions

 

Can TASI TA622C detect condensation?

It measures environmental conditions related to condensation, including temperature, relative humidity and dew point. It does not directly detect water on a surface.

 

Why is dew point important for building inspection?

Dew point helps technicians understand when environmental conditions may allow condensation to occur on sufficiently cold surfaces.

 

Can TA622C measure wall moisture?

No. A suitable material moisture meter should be used when measuring moisture within building materials.

 

Can TA622C measure surface temperature?

It is primarily an air temperature and humidity instrument. An infrared or contact thermometer may be more appropriate for dedicated surface temperature measurements.

 

Can TA622C record environmental measurements?

Yes. It provides data recording capability and supports USB PC communication.

 

Can it be used by HVAC contractors?

Yes. Temperature, RH, dew point and wet bulb measurements are useful parameters for HVAC inspection and troubleshooting.

 

Looking for a Temperature Humidity & Dew Point Meter in Malaysia?

 

MTM Precision supplies professional testing and measurement instruments for building inspection, HVAC troubleshooting, facility management, moisture investigation, industrial maintenance and environmental monitoring applications in Malaysia.

 

If you are looking for the TASI TA622C Digital Thermo-Hygrometer, moisture meter, infrared thermometer or another environmental measurement instrument, contact MTM Precision to discuss your application.

 

Contact MTM Precision

 

MTM Precision Sdn Bhd

 

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

Pusat Bandar Puchong,

47160 Puchong, Selangor, Malaysia.

 

Website: www.mtmpre.com.my

WhatsApp: +6016-660 7346

Email: mtmpre@yahoo.com