Higher heat density
Greater heat generation per rack puts pressure on cooling capacity and temperature control.
Data center cooling measurement
Measure what keeps your data center cool
Evaluate cooling performance with synchronized power and temperature measurements, investigate VFD and motor abnormalities, and verify supply power quality to support reliable operation.
What to measure across the cooling loop
Server rack and PSUEvaluate PSU input/output and total rack power alongside temperature changes.POWER · TEMPERATURE
CDU performanceCorrelate CDU and component power consumption with thermal response.POWER · TEMPERATURE
Power quality and commissioningVerify supply power quality for chillers, CDUs, and server racks.POWER QUALITY
Chiller drive waveform analysisCapture voltage and current waveforms to investigate VFD and motor abnormalities.VOLTAGE · CURRENT
Capture togetherRecord electrical, thermal, and physical signals on one time base.
Investigate the causeAnalyze waveforms and power quality to investigate equipment abnormalities.
Act with evidenceSupport design, commissioning, and maintenance decisions with measured data.
Why measurement matters now
Rising rack power density is changing cooling requirements
As AI workloads increase power consumption and heat generation per rack, cooling systems must handle greater thermal demands. Engineers need the right measurements to evaluate cooling performance, diagnose equipment issues, and verify supply power quality.
Hybrid cooling reliability
New CDUs and controls must integrate with existing facility infrastructure.
Efficiency uncertainty
Thermal response must be connected to actual power use and conversion loss.
Intermittent abnormalities
Short or separate tests can miss VFD, motor, pump, and supply disturbances.
See how power and cooling interact across the complete system
Rack loadPower + temperature
CDUFlow + response
Pump and VFDVoltage + current
ChillerPower quality + trends
Application-led measurement solutions
Match the measurement to the challenge
Choose the right measurement approach for power and thermal evaluation, chiller diagnostics, efficiency testing, and power quality verification from development to commissioning and maintenance.
04
Verify power quality and commissioning performance
Record harmonics, trends, and supply events and correlate them with cooling-system behavior.
Outcome: support power quality verification and troubleshooting of supply-related equipment issues.
Explore:
PQ3198
Measurement in practice
Connect power changes to cooling response
Measuring power and temperature on a common time base helps engineers evaluate how server racks and CDUs respond to changing loads.
- Compare power consumption with temperature changes.
- Evaluate thermal response during load transitions.
- Use synchronized data to support cooling performance validation.
Technical resources
Choose the next step that fits your project
Explore our various technical guides and application notes to see how Hioki can solve your cooling measurement problems.
Technical guide
Measure Data Center Efficiency
Learn how to use PUE and DCiE to evaluate power use across IT equipment and supporting infrastructure.
Ensure Uninterrupted Power
Technical guide
Put Rack Power and Temperature on One Timeline
See how the LR8102 supports synchronized measurement of server racks, PSU efficiency, and standalone CDUs.
Download the Guide
Technical guide
What Your VFD Waveforms Reveal
Explore key waveform checks to investigate cooling pump and motor-drive performance.
Download the Guide01
Design and development
Validate power, temperature, control response, efficiency, and loss across the expected load profile.
02
Commissioning and acceptance
Verify startup, switching, load response, power quality, and system interactions under operating conditions.
03
Operations and maintenance
Capture VFD, motor, pump, and long-duration trends before cooling performance moves out of margin.
Why HIOKI
One synchronized viewConnect electrical, thermal, and physical behavior on a common time base.
Fast events and long-duration captureRecord transients as well as intermittent conditions that disappear in short tests.
Solutions across the lifecycleSupport development, commissioning, field troubleshooting, and maintenance.
Application engineering supportDefine the signals, sensors, instruments, and recording approach around the objective.
Frequently asked questions
Which cooling systems can Hioki help evaluate?
Measurement solutions can support air- and liquid-cooled environments, including CDU, pump, VFD, chiller, and supporting power-system applications. The exact setup depends on the signals, project stage, and recording duration.
Can electrical and temperature data be measured together?
Yes. Compatible Hioki systems can capture electrical, power, temperature, and other physical signals so teams can compare system response on a common time base.
What happens after a consultation request?
A measurement specialist reviews the cooling architecture, project stage, and measurement challenge, then recommends a practical next step for instrument selection and test planning.
Talk through your application
Bring your cooling measurement challenge to Hioki
Whether you are validating liquid cooling, commissioning pumps and controls, or troubleshooting an intermittent VFD event, we can help define the signals and recording approach needed to produce actionable data.
What to expect: Share your project stage and primary challenge. A Hioki specialist will follow up with a practical measurement recommendation.