Specifications
Parameter Specification
Model Yokogawa WT1806
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)
Current Range Direct input: 10 mA to 50 A (5 A/50 A ranges)
External sensor: Full 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
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 motor analysis
Display 8.4-inch TFT color touchscreen (800 × 600 pixels)
Interfaces LAN, USB (Host & Device), GPIB (optional)
Operating Temperature 0°C to +40°C
Dimensions (W×H×D) 434 × 177 × 520 mm
Weight Approx. 15 kg
Key Features
Six isolated channels for complete system measurement

Ultra-high precision: ±0.03% power accuracy

Wide bandwidth: DC to 1 MHz for high-frequency applications

Exceptional low power factor capability: Down to 0.0001 PF

Advanced harmonic analysis: 500th order measurement

High-speed sampling: 10 ms update for transient analysis

Motor evaluation mode: Torque and efficiency calculations

Comprehensive interfaces: Multiple connectivity options

Advanced Capabilities
Complete powertrain analysis (DC battery + AC motor)

Simultaneous multi-point measurements

Real-time efficiency calculations

Custom mathematical functions

Advanced triggering capabilities

Long-term data logging

Automated test sequences

Typical Applications
Electric vehicle powertrain testing

Dual motor system evaluation

High-efficiency inverter testing

Advanced motor research

Power quality analysis

Energy efficiency mapping

Manufacturing quality control