Description
Yokogawa WT310 Single-Phase Power Analyzer – Precise power measurement for R&D, production test, and energy efficiency work
The Yokogawa WT310 is a compact, single-phase power analyzer designed for accurate measurement of voltage, current, and power in AC, DC, and mixed-signal applications. From my experience, engineers pick the WT310 when they need stable low-power readings for standby testing, or when they want a dependable bench unit for power supply and inverter evaluation without a long learning curve. One thing I appreciate is how it balances high accuracy with practical usability—clear display, smart ranges, and straightforward logging.
Typical use cases include:
measuring power consumption of adapters and embedded supplies, validating motor drive input power during development, verifying appliance standby per IEC-style methods, and tracking efficiency changes during long-duration thermal tests. You might notice that the WT310 is often chosen in place of a full three-phase analyzer when a single-channel, high-accuracy setup is all that’s necessary.
Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery time: 1 week if in stock; no more than one month at the latest
- Payment terms: 50% advance payment; full payment before delivery
- Express delivery: FedEx, UPS, DHL
Key Features
- Single-phase, high-accuracy platform – A 0.1%-class power accuracy device (typical for this series), suitable for compliance-style testing and precise efficiency studies.
- Wide measurement ranges – Direct voltage up to the 600 V class and current ranges that typically span from tens of mA up to 20 A on WT310 models; ideal for both standby and full-load tests.
- Low-power capability – Stable readings at very low currents (handy for no-load and standby measurements where micro- to milliamp accuracy matters).
- Broad frequency coverage – DC to the ~100 kHz class (model/option dependent), which helps with PWM inverters, LED drivers, and digitally controlled power supplies.
- Harmonics and analysis functions – Harmonic/THD evaluation and integration (Wh/Ah) functions are available in many configurations, saving time during characterization.
- Interfaces for automation – USB is standard; GPIB and LAN (Ethernet) are available on many units, making SCPI-based data collection and pass/fail automation straightforward.
- Compact, bench-friendly design – Easy to fit into crowded R&D benches; rack-mount kits are available for production lines.
Feedback we hear from a typical test engineer: “We switched to the WT310 for our adapter line; it locked in low-power readings faster, and our automated scripts over USB just worked.”
Technical Specifications
| Brand / Model | Yokogawa WT310 (Single-Phase Power Analyzer) |
| HS Code | 9030.39 (Measuring or checking electrical quantities, other) |
| Power Requirements | 100–240 VAC, 50/60 Hz auto-ranging; approx. ≤30 VA consumption (typical) |
| Dimensions & Weight | Bench-top form factor; approximately 210–220 W × 80–100 H × 350–380 D mm; around 3–4 kg (varies by options) |
| Operating Temperature | 0 to 40 °C, up to ~85% RH non-condensing (typical lab conditions) |
| Signal Input/Output Types | Voltage input up to the 600 V class (CAT II); direct current input typically up to 20 A; external shunt/CT scaling supported; I/O for sync/trigger depending on options |
| Communication Interfaces | USB (standard). GPIB and Ethernet/LAN available on many configurations; SCPI control supported |
| Installation Method | Bench-top use; optional rack-mount brackets for EIA racks (production test) |
| Measurement Bandwidth | DC to the ~100 kHz class (model/option dependent) |
| Measurement Ranges | Voltage ranges up to 600 V; current ranges from low mA up to 20 A (WT310). WT310HC variant supports higher current |
Specifications can vary by configuration and options; if you need a detailed, finalized datasheet for your exact part number, let me know.
Related or Supporting Products
- Yokogawa WT310E – Enhanced version with updated accuracy/specs and modern interfaces; a common choice for new builds.
- Yokogawa WT310HC – High-current variant for applications up to the 40 A class; preferred for motor/inverter input testing.
- Yokogawa WT320 – Single-phase with dual elements for expanded input coverage (model dependent).
- Yokogawa WT330 – Three-element model for multi-phase and multi-channel measurements.
- Clamp-on current sensors / external shunts – Pair with the WT series via scaling to measure higher currents or isolated conductors.
- Rack-mount kits – For integrating the WT310 into automated production test systems.
Installation & Maintenance
- Environment – Install in a clean, dry lab or cabinet; allow at least 50 mm clearance around vents for airflow. Avoid direct heat sources and high vibration.
- Wiring – Use properly rated leads and connectors for the expected voltage/current. Observe CAT II limits and connect grounds first. For external CT/shunt, verify scaling and phase orientation.
- Safety – De-energize circuits before changing connections. For PWM outputs, verify bandwidth/crest factor settings to prevent overrange.
- Routine care – Wipe dust from vents and terminals periodically; keep terminals tight. From my experience, an annual calibration keeps low-power readings consistent over time.
- Firmware & data – Back up settings; check for firmware updates periodically (when interfaces support it). Validate SCPI scripts after updates.
Quality & Certifications
- Compliance – CE and RoHS compliance in most configurations; manufactured under ISO 9001 quality systems. UL/CSA availability may depend on region and options.
- Warranty – 12 months (365 days) coverage from us.
- Traceability – Calibration certificates available upon request (factory or accredited lab, depending on your QA process).
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