Precision Digital Power Meters for Accurate AC/DC Power Measurement
Chroma digital power meters provide industry-leading measurement precision for voltage, current, real power (W), apparent power (VA), reactive power (VAR), power factor (PF), frequency, and total harmonic distortion (THD).
Designed to meet strict global compliance standards including ENERGY STAR, IEC 62301, and SPEC Power, Chroma power analyzers feature high-speed DSP technology and sampling rates up to 250 kHz. They deliver fast, repeatable measurements across single-phase and three-phase power electronics, switching power supplies, EV components, solar inverters, and AI server power units.
Key Capabilities
- High Accuracy: 0.1% basic reading precision for low power and high current.
- Harmonic Analysis: Up to 50th order harmonic distortion (THD) measurements.
- Wide Measurement Ranges: Voltage up to 1200 Vrms, current up to 30 Arms.
- Multi-Phase Support: 1P2W, 1P3W, 3P3W, and 3P4W wiring configurations.
- ATE Automation: Standard USB, GPIB, Ethernet, and RS-232 interfaces.
Compare Chroma Digital Power Meters & Analyzers
Select the ideal power meter series based on your required channel density, current range, phase wiring setup, and testing application.
| Model Series | Channel Count | Voltage Range | Current Range | Frequency Range | Wiring Setup | Primary Application |
|---|---|---|---|---|---|---|
| Chroma 66205 Single Channel | 1 Channel | 15 / 30 / 60 / 150 / 300 / 600 Vrms (1200 Vrms Optional) |
5mA to 30 Arms | DC, 15Hz to 10kHz | 1P2W | ENERGY STAR standby testing, AC/DC adapters, power supplies, appliances. |
| Chroma 66203 Multi Channel | 3 Channels | 15 / 30 / 60 / 150 / 300 / 600 Vrms | 5mA to 20 Arms | DC, 15Hz to 10kHz | 1P2W, 1P3W, 3P3W | Three-phase motor drivers, PV inverters, industrial power converters. |
| Chroma 66204 Multi Channel | 4 Channels | 15 / 30 / 60 / 150 / 300 / 600 Vrms | 5mA to 20 Arms | DC, 15Hz to 10kHz | 1P2W, 1P3W, 3P3W, 3P4W | High-efficiency server power supplies, multi-output DC-DC converters, 3-phase systems. |
What Is a Precision Digital Power Meter?
A digital power meter is an advanced electrical testing instrument capable of capturing complex voltage and current waveforms simultaneously. Unlike basic multimeters that measure root-mean-square values independently, a dedicated power analyzer continuously multiplies sampled voltage and current values in real time.
This synchronous sampling allows test engineers to precisely characterize non-linear loads with high crest factors, such as switch-mode power supplies (SMPS) and variable frequency drives (VFD), where current waveforms exhibit significant phase displacement and harmonic distortion.
Why Global Test Engineers Rely on Chroma
Chroma brings over 40 years of power electronics expertise to automated test equipment. Our power meters are designed to resolve critical engineering challenges during product validation and high-volume manufacturing:
- Low Power & Standby Measurement: Accurate micro-amp resolution for meeting stringent ENERGY STAR / IEC 62301 zero-watt requirements.
- Inrush Current Capture: Built-in high-speed peak detection captures peak startup surge currents automatically.
- Seamless System Integration: Full automation driver support for LabVIEW, C#, Python, and Chroma PowerPro ATE software.
Download Chroma Power Meters Technical Specifications & Catalog
Request our comprehensive product documentation to review detailed accuracy tables, dimension drawings, harmonic measurement options, and automated test software compatibility.