Sorensen MML-80-20-102

The Sorensen MML-80-20-102 is a single-channel electronic load module designed for precision DC power testing in laboratory and industrial environments. This 1-bay load module operates across 0–80 V and 0–20 A with a 100 W power rating, integrating into Sorensen MML-4 or MML-2 mainframes for scalable multi-channel test systems. The module supports constant current, constant voltage, constant resistance, and constant power operating modes with high-speed programmable dynamic loading to 20 kHz and slew rates up to 5 A/µs.

– Technical Specifications

• Voltage Range: 0–80 V
• Current Range: 0–20 A
• Power Rating: 100 W
• Load Regulation: Voltage <0.02% + 5 mV; Current <0.1% + 10 mA
• Voltage Measurement Accuracy: ±(0.2% + 0.5 V)
• Current Measurement Accuracy: ±(0.4% + 10 mA)
• Display Resolution: 10 mV (voltage), 1 mA (current)
• Input Resistance: 4.2 Ω
• Programmable Slew Rate: Up to 5 A/µs
• Dynamic Loading: Up to 20 kHz
• A/D Converter: 15-bit resolution
• Memory: 100 sets (setup storage); 10 sets (automated test programs)
• Temperature Coefficient: 100 ppm (typical)
• Operating Temperature: 0°C to 40°C
• Mainframe AC Input: 115/230 VAC switchable or 100/200 VAC switchable, 47–63 Hz
• Mainframe Power Consumption: 180 VA maximum
• Dimensions: 107 × 44.5 × 378 mm
• Weight: 1.8 kg

– Key Features

• Optically isolated and floating design for independent operation within mainframes
• Four operating modes: CC, CV, CR, and CP
• Short circuit simulation capability
• Automatic GO/NG inspection with independent status signals per channel
• Overpower, overcurrent, overvoltage, overtemperature, and reverse polarity protection
• Front panel keypad control with RS-232 interface; optional GPIB (IEEE-488.2)
• Analog GO/NG status output for automated test workflows

– Typical Applications

Power supply validation, battery discharge testing, fuel cell characterization, LED driver evaluation, and regulatory compliance testing for 0–80 V DC sources up to 20 A.

– Compatibility & Integration

The MML-80-20-102 fits into Sorensen MML-4 (4-bay) and MML-2 (2-bay) mainframes. Multiple load modules can be combined within a single mainframe for parallel or independent multi-channel test configurations.