Specifications
Parameter Category Specification Details
Model Yokogawa WT1806E
Input Elements 6 fully isolated elements
Power Accuracy ±0.03% of reading (45-66 Hz, specific conditions)
Voltage Range 1.5 V to 1000 V (extendable to 2000 V with optional sensor)
Current Range Direct input: 10 mA to 50 A (5 A and 50 A ranges)
External sensor: Comprehensive support available
Bandwidth DC, 0.1 Hz to 1 MHz (-3 dB)
Basic Accuracy ±0.03% reading + ±0.05% range (45-66 Hz)
Power Factor Range 0.0000 to 1.0000 (with enhanced low-PF accuracy)
Harmonic Measurement Simultaneous measurement up to 500th order
Integration Function High-precision energy measurement (Wh, Ah)
Data Update Rate 500 ms (2 readings/s) for all inputs
10 ms (100 readings/s) for selected inputs (motor analysis)
Display 8.4-inch TFT color touchscreen (800 × 600 pixels)
Standard Interfaces LAN (1000BASE-T), USB (Host & Device)
Optional Interfaces GPIB, D/A Output, Digital I/O
Operating Temperature 0°C to +40°C
Dimensions (W×H×D) 434 × 177 × 520 mm
Weight Approx. 15 kg
Key Features
Six isolated channels: Complete system measurement capability

Ultra-high precision: ±0.03% power accuracy for reliable data

Wide bandwidth: DC to 1 MHz suitable for SiC/GaN applications

Enhanced low power factor measurement: Down to 0.0001 PF

Advanced harmonic analysis: Simultaneous 500th order measurement

High-speed sampling: 10 ms update rate for transient analysis

Motor evaluation package: Torque and mechanical power calculation

Comprehensive interfaces: Multiple connectivity options

Advanced Capabilities
Complete powertrain analysis: Synchronous DC battery and AC motor measurements

Real-time efficiency mapping: Instantaneous system efficiency calculation

Custom mathematical functions: User-defined calculations and formulas

Advanced triggering: Complex measurement triggering capabilities

Long-term data logging: Extended measurement recording

Automated test sequences: Programmable measurement routines

Typical Applications
Electric vehicle powertrain development and validation

Dual motor and electric axle testing

High-efficiency inverter characterization

Advanced motor research and development

Power quality analysis in complex systems

Energy efficiency validation and optimization

Manufacturing quality assurance testing