This document is about the Labornetzgerät Laboratory Power Supply EA-PS 3150-04 B 0.150V / 0.4A. The product is a laboratory power supply with adjustable output voltage and current. The device features high stability, low output ripple, and protection functions such as overvoltage, overcurrent, and overtemperature.
This manual describes the EA‑PS 3150‑04 B laboratory power supply, including its technical data, safety precautions, installation steps, and operation modes. It covers input requirements, output voltage and current ranges, protection functions, and the built‑in analogue interface.
The document also explains how to use the front‑panel controls, preset functions, and optional USB interface (UTA12). Detailed pin assignments for the analogue interface and guidelines for remote sensing, fuse replacement, and ventilation are provided.
| Input voltage range | 88‑264 V |
|---|---|
| Input frequency | 50 / 60 Hz |
| Power factor correction | >0.99 |
| Output voltage range | 0‑150 V |
| Output current range | 0‑4 A |
| Over‑voltage protection (OVP) | 0‑165 V |
| Supply voltage for interface (+VCC) | 12‑15 V, 100 mA |
| Reference voltage (VREF) | 10.0 V, 5 mA |
The unit operates from 88 V to 264 V AC input.
Output voltage can be set with the front‑panel coarse/fine potentiometers or via the analogue 0‑10 V interface.
Connect the unit to a grounded outlet or a safety‑class‑2 isolation transformer and keep the side and rear ventilation openings unobstructed.