Related Manuals for BK Precision 1745A
Summarization of Contents
Features of the DC Power Supply
0-35 Volts Output
Continuously variable voltage output with coarse & fine controls.
0-10 Amps Current
Continuous duty current rating with coarse and fine adjust controls.
Laboratory Quality
Features excellent regulation and low ripple characteristics.
Constant Voltage or Constant Current Operation
Provides regulated DC voltage or current output with smooth, automatic crossover.
LED Displays (Model 1745A)
Two large LED displays monitor output voltage and current for visibility.
Two Current Ranges (Model 1744A)
Model 1744A offers high-low switch for full or quarter output current.
LED Indicators
Act as pilot light and identify mode of operation and metering.
Pre-Regulator Design
Limits internal dissipation for enhanced reliability.
Isolated Output
Output is isolated, allowing polarity to be floated or grounded freely.
Overload Protection
Adjustable current limiting protects circuit and power supply from overloads.
Reverse Polarity Protection
Prevents damage from incorrect external voltage polarity connections.
Styling
Modern functional styling with a logical, convenient control layout.
Specifications
Output Voltage Specifications
Continuously variable 0 to 35 VDC with coarse and fine adjustment.
Output Current Specifications
Adjustable 0 to 10 A with coarse and fine controls.
Constant Voltage Operation Specs
Details voltage regulation, recovery time, and ripple voltage specs.
Constant Current Operation Specs
Details current limits, regulation, and current ripple specs.
Metering Specifications
Specifies LED display types, ranges, and accuracies for voltage and current.
AC Input Requirements
Lists domestic and international AC input voltage and frequency requirements.
Power Consumption
Specifies power consumption at full load.
Protection Features
Details reverse polarity protection and current limiting features.
Temperature Range and Humidity
Specifies operating and storage temperature and humidity ranges.
Dimensions and Weight
Provides physical dimensions and weight of the power supply.
Accessories Supplied
Lists the items included with the power supply, such as manual and fuse.
Thermal Drift Explanation
Explains thermal drift phenomenon and its effect on high-resolution power supplies.
Controls and Indicators
Indicators Overview
Describes LED indicators for CV/CC modes, and LED displays for voltage/current.
Voltage Controls
Details coarse and fine controls for adjusting output voltage.
Current Controls
Details coarse and fine controls for adjusting output current limit.
Output Terminals
Identifies positive, negative, and ground output terminals.
Rear Panel Controls
Identifies fuse and power cord located on the rear panel.
Operating Instructions
Safety Precautions for Operation
Emphasizes using a polarized 3-wire outlet and caution with external high voltages.
Equipment Precautions
Advises on ambient temperature, air space, and observing polarity for equipment safety.
Hook-Up Procedure
Provides step-by-step guide for connecting the device to be powered.
Typical Constant Voltage Operation
Procedure for setting and operating the power supply in constant voltage mode.
Setting Current Limit
Procedure to determine and set the maximum safe current limit for the device.
Typical Constant Current Operation
Procedure for setting and operating the power supply in constant current mode.
Constant Voltage/Constant Current Characteristic
Explains the automatic crossover between CV and CC modes based on load.
Connecting Two Power Supplies in Series
Guide for connecting two units in series to achieve higher voltage output.
Connecting Two Power Supplies in Parallel
Guide for connecting two units in parallel to achieve higher current output.
Applications
General Applications
Overview of the power supply's versatility across various fields.
Electronics Servicing
Use cases for troubleshooting and repairing electronic equipment.
Electronics Manufacturing
Applications in production testing, assembly, and quality control.
Electronics Design Lab
Use in engineering labs for powering breadboards and prototypes.
Electronics Education
Applications in classroom labs for demonstrating fundamental electronics principles.
Battery Charging
Using the supply as a battery charger for various rechargeable battery types.
Maintenance
Fuse Replacement
Procedure for replacing blown fuses and identifying correct fuse values.
Line Voltage Conversion
Instructions for converting the unit for different international line voltages.
Adjustments
Guidance on factory adjustments and when readjustment might be necessary.
Calibration Procedure
Detailed procedure for calibrating the power supply's voltage and current readings.
Instrument Repair Service
Information on obtaining professional repair and calibration services.
Service Information
Warranty Service
Instructions for returning the product for warranty repair with proof of purchase.
Non-Warranty Service
Instructions for returning the product for non-warranty repair, including payment.
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