The NH Research 81210 is a single-slot, C-size VXIbus DC electronic load module for testing and characterizing DC power sources and systems. It delivers programmable load simulation across multiple operating modes, enabling engineers to verify power supply performance under diverse conditions and load profiles without physical load banks.
Technical Specifications
• Power Rating: 50 W continuous
• Voltage Range: 75 V
• Current Ranges: 1 A or 10 A
• Operating Modes: Constant Resistance (CR), Constant Current (CC), Constant Voltage (CV), Constant Power (CP)
• Form Factor: C-size VXIbus module (single-slot)
– Key Features
• Glitch-free transitions between CR and CC operation modes for reliable dynamic testing
• Selectable current slew rates adapt load response to specific power supply characteristics
• Programmable transient response enables simulation of real-world operational conditions
• Analog input for external DC load current control across the full operating range, supporting arbitrary waveform generator integration for complex loading profiles
• Short-circuit mode with SCR and shorting relay for fast, low-resistance shorts
• Comprehensive protection: over-voltage, reverse-voltage, over-current, over-power, and over-temperature
• Internal EEPROM-based calibration with no potentiometer adjustment required
– Typical Applications
The 81210 suits low-power device testing and DC power supply evaluation in automated test environments. Its modular architecture and programmable load modes address applications requiring dynamic load simulation, transient analysis, and efficiency characterization of regulated supplies and battery management systems.
– Compatibility & Integration
Designed as a standard offering within the NH Research 8100i Family, the 81210 integrates directly into any VXIbus-based test system, providing instrument-level control and data acquisition within larger automated test platforms.
