The Kikusui PLZ72W is a 70W DC electronic load for testing power supplies, batteries, and converters across input voltages from 4V to 110V DC. It operates in four modes—Constant Current, Constant Resistance, Constant Voltage, and Constant Power—with dual selectable current ranges (0–12A and 0–1.2A) and continuously variable resistance settings (0.2Ω and 2Ω). The instrument includes a built-in oscillator for dynamic load testing with adjustable switching timing from 1 mS to 100 mS, enabling rapid transitions between two preset load levels.
## Technical Specifications
• **Power Rating:** 70W maximum load
• **Input Voltage:** 4V to 110V DC
• **Current Ranges:** 0–12A and 0–1.2A (selectable)
• **Resistance Ranges:** 0.2Ω and 2Ω (continuously variable); 0–3Ω minimum in CR mode
• **Operating Modes:** Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP)
• **Dynamic Loading:** Oscillator with 1 mS to 100 mS switching timing
• **Display:** 3½ digit digital voltmeter/ammeter with auto-range voltmeter function
• **Dimensions:** 70 mm W × 151 mm H × 340 mm D
## Key Features
• Automatically resetting protection against overvoltage (≈115V DC), overcurrent (≈12.5A DC), overpower (≈73W), overheat (100°C ±5°C), and reverse polarity
• Two 10-turn potentiometers for independent load-level setting
• Local and remote mode operation with CC/CR selection
• DC and switching mode selection
• Current monitor output via BNC connector
• Remote sensing inputs
• One-control parallel operation of multiple units
• Optional rack mounting available for EIA or JIS standard racks
## Typical Applications
• Power supply testing and current-limiting characteristic adjustment
• Secondary battery discharge testing
• Power converter validation
• Dynamic load testing and power sliding resistor applications
## Compatibility & Integration
RS-232/485, GPIB, and analog control via BNC connectors enable integration into automated test systems. Remote sensing inputs support precision voltage regulation testing. Multiple units operate in parallel under single-unit control for scaled load testing.
