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BK Precision 1901B - User Manual

BK Precision 1901B
37 pages
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Model 1900B, 1901B, 1902B
Switching DC Power Supply
INSTRUCTION MANUAL
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

Table of Contents

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Questions and Answers

  • C
    Clayton ReyesAug 9, 2025
    What to do if my BK Precision 1901B shows an OTP (Overtemperature Protection) warning?
    • L
      Louis OliverAug 9, 2025
      If you receive an overtemperature protection warning on your BK Precision Power Supply, immediately turn off the unit, disconnect all loads, and let it cool down for a minimum of 30 minutes. Ensure proper ventilation around the power supply, checking for any obstructions. Upon restarting the unit, listen for the cooling fan's self-test noise. If the fan isn't audible, discontinue use and contact B&K Precision.
  • J
    Jonathan MillerAug 18, 2025
    How to reset OVP (Overvoltage Protection) on a BK Precision 1901B?
    • K
      Kimberly JenningsAug 18, 2025
      To reset an overvoltage protection (OVP) warning on your BK Precision Power Supply, turn the unit off and disconnect all connected devices. Then, turn the unit back on to resume normal operation. If the problem continues, contact B&K Precision.
  • K
    Kyle ShepherdAug 28, 2025
    What to do if my BK Precision 1901B displays an OLP (Overload Protection) warning?
    • M
      Mr. Corey MillerAug 28, 2025
      To reset an overload protection (OLP) warning on your BK Precision Power Supply, switch the unit off, disconnect all devices connected to it, and then switch it back on. Exercise caution and double-check your connections. If the issue persists, contact B&K Precision.

Summary

Safety Summary

General Safety Precautions

Essential safety guidelines including grounding, operating in hazardous environments, and avoiding live circuits.

Controls and Indicators

Operating Instructions

Operating Safety Precautions

Essential safety measures to follow during operation to prevent hazards and damage.

Connecting the Power Supply

Step-by-step instructions for connecting the power supply to the AC mains and the load.

Control Modes

Analog Remote Control Mode

Using external analog signals to control voltage and current.

Remote Sense Functionality

Remote Control Methods

Analog Remote Control Setup

Using External DC Voltage Sources

Using Variable 5 kΩ Resistors

PC Interface Control

PC Remote Control Setup

Using a PC for remote control via USB interface and software.

Faults and Troubleshooting

Overvoltage Protection (OVP)

Explains the OVP feature, warning indicators, and reset procedure.

Overtemperature Protection (OTP)

Details the OTP feature, warning signs, and troubleshooting steps.

Overload Protection (OLP)

Describes the OLP feature, its function, and how to respond to warnings.

Fuse Replacement Guide

Specifications

Model Specifications Table

Technical specifications for the 1900B, 1901B, and 1902B models.

BK Precision 1901B Specifications

General IconGeneral
BrandBK Precision
Model1901B
CategoryPower Supply
LanguageEnglish

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