UTL8211+ DC Electronic Load Single Channel 400W

UNI-T UTL8211+ DC Electronic Load – Single Channel 400 W

The UNI-T UTL8211+ is a high-precision single-channel DC electronic load designed for professional power supply testing, battery discharge analysis, charger evaluation, and automated production line testing. Part of the UTL8200+ Series, it combines 400 W load capability, fast dynamic response, and SCPI remote control, making it ideal for R&D labs and industrial test systems.

Key Features

• Single-channel DC electronic load, rated 400 W
• Wide input range: up to 150 V / 40 A
• 4 operating modes: CC, CV, CR, CP
• Dynamic load frequency up to 5 kHz
• High measurement resolution: up to 1 mV / 1 mA
• Multi-mode battery discharge testing
• List mode for automatic and sequence testing
• Analog short-circuit simulation
• Comprehensive protection system
• RS-232 communication with SCPI protocol
• PC software for remote monitoring and control
• Power-off memory function
• Smart temperature-controlled fan system

Technical Specifications

General Ratings

• Model: UTL8211+
• Channels: Single channel
• Maximum Power: 400 W
• Input Voltage Range: 0 – 150 V
• Input Current Range: 0 – 40 A
• Minimum Operating Voltage: 2.0 V @ 40 A
• Operating Temperature: 0 – 40 °C

Display & Interface

• Display: 2.8″ 24-bit True-Color LCD
• Communication Interface: RS-232
• Protocol: SCPI
• PC Software: Supported

Operating Modes

• CC – Constant Current
• CV – Constant Voltage
• CR – Constant Resistance
• CP – Constant Power
• Dynamic Mode
• Battery Discharge Mode
• List / Sequence Mode

Measurement Performance

Constant Voltage (CV)

• Range: 0 – 150 V
• Resolution: 1 mV
• Accuracy: ±(0.05% + 0.1% FS)

Constant Current (CC)

• Ranges:
  • 0 – 4 A (1 mA resolution)
  • 0 – 40 A (10 mA resolution)
• Accuracy: ±(0.1% + 0.1% FS)

Constant Resistance (CR)

• Range: 0.05 Ω – 7.5 kΩ
• Resolution: 12-bit
• Accuracy: ±(0.3% Vin/Rset + 0.2% IF.S)

Constant Power (CP)

• Range: 0 – 400 W
• Resolution: 10 mW
• Accuracy: ±(0.1% + 0.5% FS)

Dynamic Load

• T1 / T2 Range: 100 µs – 50 s
• Time Resolution: 100 µs
• Rising / Falling Slope:
  • 0.08 A/ms – 0.4 A/µs
• Minimum Rising Time: 100 µs
• Dynamic Frequency: up to 5 kHz

Readback Performance

Voltage Readback

• Range: 0 – 150 V
• Resolution: 10 mV
• Accuracy: ±(0.1% + 0.1% FS)

Current Readback

• Range: 0 – 40 A
• Resolution: 10 mA
• Accuracy: ±(0.1% + 0.1% FS)

Power Readback

• Range: 0 – 400 W
• Resolution: 10 mW
• Accuracy: ±(0.1% + 0.5% FS)

Protection & Safety

• Over-Voltage Protection (OVP)
• Over-Current Protection (OCP)
• Over-Power Protection (OPP)
• Over-Temperature Protection: ≥ 85 °C
• Short-Circuit Protection
• Reverse-Polarity Warning
• Ripple Display Supported
• Input Terminal Impedance: 300 kΩ
• Fuse: 0.5 A (110 V) / 0.25 A (220 V)

Mechanical & Power

• Cooling: Intelligent temperature-controlled fan
• Power Requirements:
  • 110 V ±10% / 220 V ±10%
  • 50 / 60 Hz
• Dimensions (W × H × D): 88 × 174.6 × 230 mm
• Net Weight: 3.42 kg

Standard Accessories

• DC Electronic Load (UTL8211+)
• Power cord
• RS-232 communication cable
• User manual (downloadable)
• Spare fuses

Typical Applications

• DC power supply and adapter testing
• Battery discharge and capacity testing
• Charger and LED driver evaluation
• R&D laboratory testing
• Automated production line testing
• SCPI-based automated test systems (ATS)

Summary

The UNI-T UTL8211+ delivers high-power DC load capability, precise measurement, fast dynamic response, and full remote control, making it an excellent choice for professional electronics testing and industrial environments.

Download

• ​PRODUCT PAGE & USER MANUAL​