B+K precision 1665 User manual

INSTRUCTION

MANUAL

Model 1665/ 1666/ 1667

BENCH SWITCHING DC

POWER SUPPLIES

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

TABLE OF CONTENTS

1. SAFETY INSTRUCTIONS AND PRECAUTIONS.....................................................3

2. INTRODUCTION..........................................................................................................4

3. SPECIFICATIONS ........................................................................................................5

4. CONTROLS AND INDICATORS................................................................................6

5. OPERATION PROCEDURES ......................................................................................9

Limited Warranty..................................................................................................................10

Service Information..............................................................................................................11

1. SAFETY INSTRUCTIONS

1. Do not use this apparatus near water.

2. Clean only with dry cloth.

3. Do not block any ventilation openings.

4. Do not install unit near any heat source or heating emitting devices.

5. Prevent the power cord from being walked on or pinched.

6. Unplug this unit during lighting storms or when unused for long periods of time.

PRECAUTIONS

1. The unit must be used within its specified range.

2.The rated input voltages can be found on the rating label at the back the unit.

3.Before plugging into the AC supply, check with the rating label.

4. Refer all servicing to manufacturer.

WARNING

Model 1667 has maximum output voltage up to 60Vdc. It may be hazardous to touch metal part of the

output terminals. User must avoid touching live metal part of the output terminals.

2. INTRODUCTION

These Laboratory Grade Switching DC Power Supplies were built with coarse and fine output voltage and current

limiting controls.

Current limiting control with automatic crossover of constant voltage (CV) and constant current (CC) indicators make this

series ideal for research and development work in laboratories.

Model 1665 only: V meter max. display

Above 19.99 output voltage, V meter display

3. SPECIFICATIONS

Specifications 1665 1667 1667

Output Voltage: I-19VDC 1-40VDC 1-60VDC

Output Voltage Control: Fine & Coarse Fine & Coarse Fine & Coarse

Output Current: 0-10A 0-5A 0-3.3A

Ripple & Noise (P-P): 20mV 20mV 20mV

Load Regulation: 0.5% + 200mV 0.5%+200mV 0.5% +200mV

Line Regulation: 50mV 50mV 50mV

Input Voltage: 100 - 240 VAC, 50Hz / 60Hz

Meter Type: Digital LED

Voltmeter Resolution: 10 mV 10 mV 10 mV

Ammeter REsolution: 10 mA 10 mA 10 mA

Voltmeter Accuracy: 1% + 2 counts

Ammeter Accuracy: 0.5% + 2 counts

Indicators: CC & CV

Cooling System: Thermostatic control fan

Protection Devices: Approvals: CE

Dimension (WxHxD): 8" x 4.5" x 11" (205 x 115 x 275 mm )

Weight: 6.6lbs (3 Kg)

NOTE: Specifications and information are subject to change without notice. Please visit www.bkprecision.com for the most current product

information.

4. CONTROLS AND INDICATORS

FRONT PANEL

4. CONTROLS AND INDICATORS

REAR PANEL

Front Panel

1. Power Switch -- Turns the power supply ON/OFF.

2. DC Voltmeter (LED Display)* -- Indicated the present output voltage with auto range.

3. DC Ammeter (LED display) -- Indicates the present output current with auto range.

4. Constant Current Mode (C.C.) -- Indicator Indicates the power supply is operating in constant current mode.

5. Constant Voltage Mode (C.V.) -- Indicator Indicates the power supply is operating in voltage mode.

Current Fine Adjust --

Fine adjust knob for current limiting point and current value in constant current mode.

7. Current Coarse Adjust -- Coarse adjust knob for current limiting point and current value in constant current mode.

8. Voltage Fine Adjust -- Fine adjust knob for the output voltage in voltage mode.

9. Voltage Coarse Adjust -- Coarse adjust knob for the output voltage in voltage mode.

10. Output Terminal Positive (+) -- Terminal for tapping of positive (-}-) output.

11. Output Terminal Negative (-) -- Terminal for tapping of negative (-) output.

12. GND Terminal -- Chassis ground terminal. Normally, this is connected to either the + or - terminal depending on the

application.

Rear Panel

12. Fan -- Allow at least 80 mm space from wall.

13. Input Socket with fuse.

5. OPERATING PROCDURES

Output Voltage Control - It is a dual control consisting of a coarse and fine potentiometer. The final DC voltage output is the sum of both

adjustments.

Current Limiter Control - It is a dual control (coarse/fine) that changes the DC current over the rated current range.

Ground Connections - For operating with negative or positive output terminal, grounded or without grounding. Connections (+ or -) are made by

using the shorting plate at the terminal.

REMARKS: When operating this supply without being grounded, high impedance leakage can exist between the power supply

circuitry and the chassis ground.

Basic Mode of Operation - This power supply is designed to operate as a constant voltage source or as a constant current source. Automatic

crossover to either mode of operation occurs when load conditions change as follows:

•Constant Voltage - The power supply will function as a constant voltage source as long as the load current is less than the current limiting

value set by the current limit operation. When the load current is equal to or greater than the current limit set, the power supply will automatically

crossover and operate as a constant source.

•Constant Voltage Automatic Crossover - The power supply will function as a constant source when the load voltage does not equal to the

voltage value set by the output voltage control. When the load voltage equals to the value set by the output voltage control the power supply will

automatically cross over and operate as a constant voltage source.

•Presetting Current Limiting Value - There are occasions when you will not want your load to draw too much current or want to prevent

any damage, you can preset the current limiting value as follows : Short circuit the output terminals and adjust the current limit control to your

desired value.

Limited One-Year Warranty

B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in

workmanship and materials for a period of one year from date of purchase.

B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be

accompanied by proof of the purchase date in the form of a sales receipt.

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