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WT1800

The Yokogawa WT1800 Series is a family of high-accuracy, high-performance digital power analyzers designed for precision power measurement and efficiency analysis in research, development, and verification applications. It is renowned for its best-in-class accuracy of ±0.03% of reading and flexible configuration of 4 to 6 input elements in a single mainframe.

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(Key Parameters)
The following table summarizes the key specifications for the WT1800 series. Note that the flagship WT1806E model offers the highest performance.

Parameter Category WT1800 Series Specification
Models & Input Elements WT1804E: 4 elements, WT1805E: 5 elements, WT1806E: 6 elements (all in one mainframe)
Power Accuracy (45-66 Hz) ±0.03% of rdg. + 0.04% of f.s. (WT1806E, 50/60 Hz: ±0.03% of rdg. + 0.02% of f.s.)
Voltage Range (Direct Input) 1.5 V to 1000 V (10 ranges)
Current Range (Direct Input) 5 mA to 50 A (15 ranges)
Current Range (External Sensor) Supports a vast selection of current sensors (CTs, clamps, etc.)
Frequency Bandwidth (AC) DC, 0.1 Hz to 5 MHz (-3 dB)
A/D Converter 18-bit resolution for all inputs
Sampling Rate Max. 10 MS/s (Mega Samples per second)
Harmonic Measurement Up to the 500th order (Complies with IEC 61000-4-7 Class 1)
Basic Functions U, I, P, S, Q, λ, PF, phase angle, frequency, harmonics, interharmonics, integration (Wh, Ah)
Motor Evaluation Computes torque (N·m), rotational speed (rpm), and mechanical power (requires encoder and torque sensor input)
Data Update Rate 100 ms (10 readings per second) for all inputs and computed values
Display 8.4-inch TFT color LCD with WXGA (1280 x 768) high resolution
Interfaces Standard: LAN (1000BASE-T), USB, EXT I/O, D/A output
Optional: GP-IB (IEEE-488)
Isolation Channel-to-Channel: Isolated
Channel-to-Chassis: Isolated
Channel-to-Power: Isolated
Applications EV/HEV, Motor/Inverter drives, Power supplies, Aerospace, Renewable energy, Power electronics R&D