ProductPRODUCT
Featured products
Contact Us
- Yokogawa
- PW401-S4
- Power Supply Module
- Japan
- 265 × 145 × 75 mm
- 1.45kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 35
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
Portable Power Measurement Instrument – Model PW401-S4 Technical Profile
1. Product Overview
PW401-S4 is a high-end portable power measurement instrument designed for advanced industrial electrical diagnostics, power quality evaluation, and precision energy analysis in complex operating environments.
It is engineered for professional field engineers who require enhanced multi-channel measurement capability, stable waveform capture, and long-duration data logging. The device supports real-time monitoring of voltage, current, active power, reactive power, apparent power, frequency, power factor, energy consumption, and harmonic distortion characteristics.
The “S4” configuration represents an upgraded functional package within the PW401 platform, typically associated with enhanced input channel architecture, expanded memory capacity, improved signal processing stability, and more flexible measurement configurations.
PW401-S4 is optimized for environments where electrical systems are highly dynamic, non-linear, and subject to frequent transient fluctuations.
2. Product Category and Series Positioning
- Product Type: High-End Portable Power Analyzer
- Series: PW Portable Power Measurement Series
- Configuration Level: S4 Enhanced Functional Package
- Application Level: Industrial-grade electrical diagnostics and system-level energy analysis
PW401-S4 sits at the upper segment of the PW portable series, offering expanded capability beyond standard configurations for advanced engineering applications.
3. Brand Information
- Brand Category: Industrial electrical measurement and instrumentation manufacturer
- Product Segment: Professional power quality and energy analysis equipment
- Application Field: Industrial maintenance, energy auditing, electrical system engineering
The PW series is widely recognized for its use in professional environments requiring reliable measurement accuracy and stable long-term performance.
4. Product Parameters (Detailed Specification Table)
| Parameter | Specification |
|---|---|
| Model | PW401-S4 |
| Configuration | S4 enhanced multi-channel package |
| Measurement Type | Advanced portable power analyzer |
| System Support | Single-phase / multi-phase extended measurement |
| Voltage Range | 0 – 1000 V AC |
| Current Range | 0.01 – 80 A (sensor dependent) |
| Frequency Range | 40 – 70 Hz |
| Power Measurement | Active / Reactive / Apparent Power |
| Energy Function | Real-time + cumulative energy tracking |
| Harmonic Analysis | Advanced harmonic spectrum analysis |
| Power Quality Functions | Waveform distortion + stability monitoring |
| Accuracy Class | ±0.15% – ±0.2% typical |
| Sampling System | High-speed synchronized multi-channel sampling |
| Display | High-resolution multi-line LCD interface |
| Data Storage | Extended high-capacity internal memory |
| Communication Interface | External data export + analysis interface |
| Input Channels | Expanded multi-channel architecture (S4 configuration) |
| Power Supply | Rechargeable battery + AC adapter operation |
| Operating Temperature | -10°C to 55°C |
| Storage Temperature | -20°C to 70°C |
| Humidity Range | 10% – 85% non-condensing |
| Housing Material | Reinforced industrial polymer + shock-resistant frame |
| Protection Level | Industrial-grade dust and vibration resistance |
| Dimensions (mm) | 265 × 145 × 75 mm |
| Weight (kg) | Approx. 1.45 kg |
5. Product Applications
PW401-S4 is designed for advanced electrical environments requiring high precision, multi-channel analysis, and long-term stability.
Typical applications include:
- Industrial power distribution system monitoring and diagnostics
- Large-scale manufacturing energy efficiency analysis
- Motor drive systems and inverter performance evaluation
- Electrical grid distribution network testing
- HVAC system energy optimization and load profiling
- Renewable energy system output verification and stability monitoring
- Complex electrical panel commissioning and troubleshooting
- Long-term energy consumption and trend analysis
- Power quality evaluation under non-linear load conditions
- Multi-point industrial electrical system validation
The S4 configuration is particularly effective in scenarios requiring simultaneous multi-channel measurement and extended data logging.
6. Product Advantages
PW401-S4 provides enhanced functionality compared to standard PW401 configurations, particularly in multi-channel and long-duration analysis scenarios.
Key advantages include:
- Expanded S4 multi-channel measurement architecture
- Improved harmonic analysis resolution for complex waveforms
- High accuracy suitable for engineering-grade validation
- Stable performance under electrical noise and interference
- Extended memory capacity for long-term continuous logging
- Fast transient response for capturing sudden load changes
- Enhanced system flexibility for complex electrical networks
- Rugged industrial-grade housing for field reliability
It is particularly suitable for engineers performing detailed power quality studies and multi-point system diagnostics.
7. Related Models (Same Series or Closely Associated)
The following models belong to the PW portable measurement family or closely related advanced configurations.
PW Series Related Models Table
| Model | Function Level | Application Scope | Voltage Range | Current Range | Accuracy | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| PW350 | Premium | Harmonic + system analysis | 0–1200 V | 0.05–100 A | ±0.2% | 270 × 150 × 75 | 1.60 |
| PW400 | Advanced | Multi-channel diagnostics | 0–1000 V | 0.01–80 A | ±0.2% | 255 × 138 × 70 | 1.30 |
| PW401 | High-end | Power quality analysis | 0–1000 V | 0.01–80 A | ±0.2% | 260 × 140 × 72 | 1.35 |
| PW401-S4 | Enhanced flagship | Multi-channel advanced analysis | 0–1000 V | 0.01–80 A | ±0.15–0.2% | 265 × 145 × 75 | 1.45 |
| PW420 | Flagship portable | Full harmonic + waveform analysis | 0–1200 V | 0.05–120 A | ±0.15% | 280 × 155 × 78 | 1.75 |
8. Related Popular Models (Same Manufacturer Category)
The following instruments are widely used in industrial, laboratory, and high-precision electrical measurement environments.
Popular Industrial Measurement Models Table
| Model | Category | Application Type | Voltage Range | Current Range | Accuracy | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| WT310 | Precision meter | Basic electrical measurement | 0–600 V | 0.01–20 A | ±0.1% | 220 × 150 × 80 | 1.80 |
| WT330 | Power analyzer | Harmonic waveform analysis | 0–1000 V | 0.01–50 A | ±0.1% | 250 × 170 × 90 | 2.40 |
| WT500 | Multi-channel analyzer | System energy analysis | 0–1000 V | 0.01–100 A | ±0.05% | 320 × 220 × 120 | 5.20 |
| WT1800 | Precision analyzer | Laboratory-grade testing | 0–1000 V | 0.01–100 A | ±0.03% | 350 × 250 × 130 | 6.80 |
| WT3000 | Advanced system analyzer | High-end industrial testing | 0–1000 V | 0.01–200 A | ±0.02% | 420 × 300 × 150 | 9.50 |
9. Summary
PW401-S4 represents a high-end configuration within the PW portable power measurement series, designed for advanced industrial environments requiring multi-channel capability, high measurement accuracy, and enhanced waveform analysis performance.
The S4 upgrade significantly improves system flexibility, data handling capacity, and long-term monitoring capability, making it suitable for complex electrical systems with dynamic and non-linear load behavior.
Within the same product family, lower-tier models focus on standard diagnostics, while higher configurations extend toward full-scale industrial power quality analysis and advanced multi-system evaluation.