How to Check Server Room & Data Centre Cooling Airflow Malaysia
How to Check Server Room & Data Centre Cooling Airflow Malaysia
Reliable cooling is essential for server rooms and data centres. Even when the air-conditioning system is operating normally, poor airflow distribution can contribute to uneven cooling and localised hot areas around IT equipment.
One practical maintenance check is to measure air movement using an air flow anemometer such as the Benetech GM8902+.
Instead of judging airflow by hand, technicians can obtain actual readings at selected air outlets and compare them across the room or over time.
Why Is Airflow Important in a Server Room?
Servers, UPS systems, switches and other electronic equipment continuously generate heat.
The cooling system must not only produce cold air—it also needs to deliver and circulate that air effectively.
Airflow problems can occur because of:
Blocked air-conditioning outlets
Dirty filters
Reduced fan performance
Poor air distribution
Changes to equipment or rack layout
Obstructions around vents
Cooling system maintenance issues
Airflow measurement gives facility teams another parameter to investigate when cooling performance appears uneven.
Where Can Airflow Be Checked?
Depending on the cooling design, technicians may measure airflow around:
Air-conditioning supply outlets
Cooling vents
Return-air locations
Raised-floor air outlets
Ventilation grilles
Selected rack areas
Other designated airflow points
The exact measurement method should match the cooling system and the purpose of the inspection.
Establish Fixed Measurement Points
For preventive maintenance, consistency is important.
Instead of measuring random locations every time, establish selected measurement points such as:
Point A – Cooling Outlet 1
Point B – Cooling Outlet 2
Point C – Rack Area 1
Point D – Rack Area 2
Point E – Return Air Area
Record the locations so future measurements can be performed under similar conditions.
This creates a useful airflow baseline.
Measure Air Velocity With an Anemometer
The vane sensor of the Benetech GM8902+ Air Flow Anemometer can be positioned in the moving air at the selected location.
When comparing readings, try to maintain consistent:
Sensor position
Sensor orientation
Distance from the outlet
Cooling system operating condition
Measurement location
This helps make repeated measurements more meaningful.
Compare Airflow Between Cooling Outlets
Comparison is often more useful than looking at one reading by itself.
For example, if several similar cooling outlets are operating under comparable conditions, technicians can check whether their airflow readings are reasonably consistent.
If one location shows a noticeably different result, further inspection may be appropriate.
The airflow measurement does not automatically identify the cause—it helps indicate where to investigate next.
Combine Airflow Measurement With Temperature
Air velocity alone does not provide the complete picture of data centre cooling.
A useful maintenance approach is to combine:
Airflow Measurement + Temperature Measurement
For example, if a particular rack area repeatedly shows higher temperature, technicians can investigate whether cooling airflow around that location differs from surrounding areas.
Temperature and airflow measurements provide different information and can complement each other during troubleshooting.
Airflow Meter vs Thermal Camera
These instruments perform different jobs.
An air flow anemometer measures moving air and helps technicians compare airflow conditions.
A thermal camera visualises surface temperature patterns and can help locate abnormal heating or thermal differences.
For data centre preventive maintenance, both can be useful:
Anemometer → Check airflow
Temperature/Humidity Meter → Check environmental conditions
Thermal Camera → Investigate thermal patterns and hotspots
This combination gives facility teams a broader view of cooling and equipment conditions.
Before and After Cooling System Maintenance
Airflow measurements are also useful when evaluating maintenance work.
A simple procedure is:
Measure airflow before maintenance
↓
Service filters / fans / cooling system
↓
Repeat measurement
↓
Compare results
This creates a more objective record than relying only on whether the cooling airflow feels stronger.
Preventive Maintenance for Server Rooms
Facility teams can include airflow measurement as one part of a broader server room inspection programme.
Other parameters may include:
Temperature
Relative humidity
Thermal hotspots
Electrical conditions
UPS and switchgear condition
Cooling system performance
Network infrastructure condition
No single instrument can evaluate the entire data centre.
The objective is to use the correct measuring tool for each maintenance parameter.
Benetech GM8902+ for Server Room Airflow Checks
The Benetech GM8902+ Air Flow Anemometer provides a portable option for routine airflow measurements.
Potential users include:
Data centre facility teams
Server room maintenance personnel
HVAC technicians
M&E contractors
Facility management companies
Building maintenance teams
IT facility technicians
It can be particularly useful when technicians want to measure, compare and record airflow at selected cooling locations.
Looking for a Data Centre Airflow Meter in Malaysia?
MTM Precision supplies testing and measuring instruments for data centre maintenance, HVAC inspection, factory maintenance and environmental monitoring.
For the Benetech GM8902+ Air Flow Anemometer, contact us for product information, availability and quotation.
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
05 Sep 2026
