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BK Precision 1902B - User Manual

BK Precision 1902B
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

  • K
    Kenneth GuzmanAug 9, 2025
    What to do if my BK Precision Power Supply shows an OTP (Overtemperature Protection) warning?
    • E
      Eric CastroAug 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.
  • T
    Teresa BrightAug 19, 2025
    How to reset OVP (Overvoltage Protection) on a BK Precision 1902B?
    • D
      Daniel JohnsonAug 19, 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.
  • C
    Claudia MorganAug 29, 2025
    What to do if my BK Precision 1902B displays an OLP (Overload Protection) warning?
    • J
      Julie BrownAug 29, 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

Warnings and Cautions

Controls and Indicators

Operating Instructions

Using the Power Supply

Instructions on connecting and initially using the power supply.

Connection Procedure

Self Test Sequence

Control Knobs Operation

Set Mode Configuration

Remote Sense Operation

Remote Sense Connection and Disconnection

Remote Control

Analog Remote Control Setup

Using External DC Voltage Sources

Using 5 kΩ Variable Resistors

PC Interface Control

Faults and Troubleshooting

Overvoltage Protection (OVP)

Overtemperature Protection (OTP)

Overload Protection (OLP)

Specifications

BK Precision 1902B Specifications

General IconGeneral
Model1902B
TypeLinear
Voltage Resolution10 mV
Current Resolution1 mA
Output Voltage0 to 30 V
Ripple & Noise (CV)1 mVrms
Load Regulation0.01% + 3 mV
Line Regulation0.01% + 3 mV
DisplayLED
ProtectionsOVP, OCP, OTP
Operating Temperature0 to 40 °C
Weight4.5 kg
Output Current0 to 5 A
Storage Temperature-20°C to 70°C

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