Key Features:
Dual Load Units: Each module contains two isolated load units, allowing simultaneous testing with independent control.
5-Digit V/A/W Meter: Accurate voltage, current, and power measurements displayed on a large LCD for precise monitoring.
Multiple Operating Modes: Supports Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP), and dynamic modes, along with a short-circuit function.
Dynamic Mode: Capable of simulating dynamic conditions under CC or CP modes, with adjustable current rise/fall slew rates.
OCP/OPP Testing: Includes over-current protection (OCP) and over-power protection (OPP) testing, enhancing testing efficiency and accuracy.
Advanced Control Options: Equipped with a rotary knob and push buttons for easy adjustment of settings.
Programmable: Offers 150 sets of store/recall memory, with remote control capabilities via RS232, Ethernet, USB, and GPIB interfaces.
Protection Features: Includes comprehensive protection against over-voltage, over-current, over-power, and overheating.
Sync Load ON: Synchronization capability for loading conditions.
Short Time and Voltage Settings: Supports precise control of short-circuit timing and short voltage high/low settings.
Applications:
Voltage/Current Source Testing: Ideal for testing various DC power supplies and simulating load conditions.
SMPS Transient Response Testing: Evaluates the performance of Switch Mode Power Supplies (SMPS) under transient conditions.
Battery Testing: Supports battery emulation, battery charger testing, and battery discharge applications.
Current Limit Testing: Used for verifying current limits in power sources.
R&D and Quality Control: Provides reliable testing for research and development, as well as quality assurance in manufacturing environments.
Automated Test Equipment (ATE) Systems: Integrated into ATE systems for automated production testing.
Technical Specifications (by Model):
| Model | Power (W) | Current (A) | Voltage (V) | Dimensions (H x W x D mm) | Weight (kg) |
| 3330F | 250W & 50W | 60A & 6A | 80V | 143 x 108 x 405 | 3.5 |
| 3332F | 120W & 120W | 24A & 24A | 80V | 269 x 177 x 452 | 7.5 |
| 3336F | 40W & 40W | 3A & 3A | 80V | 160 x 177 x 452 | 5.5 |
| 3337F | 150W & 150W | 30A & 30A | 80V | 440 x 177 x 445 | 9.3 |
Operating Modes:
Constant Current (CC): Range: 0–60A, accuracy: 0.1% + 0.1% F.S.
Constant Voltage (CV): Range: 0–80V, accuracy: 0.05% + 0.05% F.S.
Constant Power (CP): Range: 0–250W, accuracy: 0.125% + 0.125% F.S.
Constant Resistance (CR): Range: 0.0333–199.8KΩ, accuracy: 0.1% + 0.1% F.S.
Dynamic Mode (CC/CP): Slew rate adjustable from 4mA to 2500mA/μs.
Measurement & Accuracy:
Voltage Readback: Accuracy of 0.025% + 0.025% F.S. with a resolution of 1mV.
Current Readback: Accuracy of 0.1% + 0.1% F.S., with a resolution of 0.1mA.
Power Readback: Accuracy of 0.125% + 0.125% F.S.
Protection Features:
Over-voltage, over-current, over-power, and over-temperature protection for enhanced safety during testing.
Programmable load ON/OFF voltage and selectable voltage polarity display (+ or -).
Optional Interfaces:
GPIB
RS232
USB
LAN
Mainframe Options:
3302F: Single channel mainframe
3305F: Two-channel mainframe
3300F: Four-channel mainframe
This series provides versatile and reliable solutions for testing a variety of DC power sources, making it suitable for industrial, laboratory, and automated testing environments.