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Hoefer PS300B - User Manual

Hoefer PS300B
25 pages
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user manual
um PS300B-IM/Rev.C0/07-12
PS300B
Power Supply

Questions and Answers

  • S
    Sarah SanchezAug 1, 2025
    What to do if my Hoefer Power Supply shows error E1?
    • B
      biancariceAug 2, 2025
      If the Hoefer Power Supply displays error E1, it means the voltage leads to the electrophoresis cell are not attached, or the current load is below 4 mA. Check all connections, ensuring sufficient buffer volumes contact all electrode wires and both gel surfaces. A constant volt run with a low volt setting may cause this. Press any button to clear the error.
  • M
    Melanie SullivanAug 10, 2025
    What to do if my Hoefer Power Supply shows error E3?
    • C
      Charles EnglishAug 10, 2025
      If your Hoefer Power Supply shows error E3, it indicates an open circuit or a loose electrical connection. Check and correct any resistance problems, buffer volumes, and voltage leads. Verify the fit of power supply adapters if used. The output current may have fallen below the 4 mA limit of the power supply. Press any button to clear the error code.
  • N
    Norman JohnsonAug 20, 2025
    What causes error E7 on a Hoefer PS300B Power Supply?
    • K
      Karen MillerAug 20, 2025
      If the Hoefer Power Supply displays error E7, it means the voltage load is below 10 V. Check for any short circuits or electrical arcing. The buffer concentration might be too high, or a constant current run with low current may result in a voltage below the 10 V limit.

Summary

Waste Electrical and Electronic Equipment (WEEE)

User Safety and Information

Safety and Usage Notes

Highlights critical instructions for safety and proper operation, including warnings and cautionary symbols.

CE Certification

Details product compliance with CE directives and conditions for its validity.

Power Supply Overview

Unpacking

Specifications

Parameter Settings

Power Parameters

Details power output limits and the relationship between voltage, current, and power.

Programmed Limits

Lists the programmable limits for voltage, current, and time with their ranges.

Power Supply Output Limits

Explains how the power supply limits voltage or current and the crossover mode.

Operating the Power Supply

Lead Recommendations and Safety

Provides guidance on recommended leads and essential safety precautions for connecting them.

Connecting the Power Supply

Connect Mains Power Cord

Instructions for connecting the mains power cord to the unit and power outlet.

Connect HV Power Leads

Guidance on connecting the apparatus using lead connectors to the output jacks.

Turn On Main Power

Final step to power on the unit by activating the rear panel switch.

Using the Power Supply

Setting Run Parameters

Explains how to select modes, adjust limits, set parameters, and configure the timer.

Starting and Stopping the Run

Details how to start, run, and stop the power supply, including continuous and timed operations.

Power Failure Detection

PFD Feature Control

Explains how to manage the Power Failure Detection feature, including activation and deactivation.

Troubleshooting Guide

Error Code Explanations

Details common error codes, their explanations, and possible corrective actions.

General Operational Problems

Covers troubleshooting for issues like no display, fan not operating, and fuse checks.

Fuse Replacement

Care and Maintenance

Service and Repair

Ordering Information

Hoefer PS300B Specifications

General IconGeneral
BrandHoefer
ModelPS300B
CategoryPower Supply
LanguageEnglish