B&K Precision 1673 User Manual
Model 1672, 1673
Triple Output Power Supply
INSTRUCTION MANUAL
1 Safety Summary
The following safety precautions apply to both operating and maintenance personnel and
must be observed during all phases of operation, service, and repair of this instrument.
Before applying power, follow the installation instructions and become familiar with the
operating instructions for this instrument.
GROUND THE INSTRUMENT
To minimize shock hazard, the instrument chassis and cabinet must be
connected to an electrical ground. This instrument is grounded through the
ground conductor of the supplied, three-conductor ac power cable. The power
cable must be plugged into an approved three-conductor electrical outlet. Do not
alter the ground connection. Without the protective ground connection, all
accessible conductive parts (including control knobs) can render an electric
shock. The power jack and mating plug of the power cable meet IEC safety
standards.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes.
Operation of any electrical instrument in such an environment constitutes a
definite safety hazard.
KEEP AWAY FROM LIVE CIRCUITS
Instrument covers must not be removed by operating personnel. Component
replacement and internal adjustments must be made by qualified maintenance
personnel. Disconnect the power cord before removing the instrument covers
and replacing components. Under certain conditions, even with the power cable
removed, dangerous voltages may exist. To avoid injuries, always disconnect
power and discharge circuits before touching them.
DO NOT SERVICE OR ADJUST ALONE
Do not attempt any internal service or adjustment unless another person,
capable of rendering first aid and resuscitation, is present.
DO NOT SUBSTITUTE PARTS OR MODIFY THE INSTRUMENT
Do not install substitute parts or perform any unauthorized modifications to this
instrument. Return the instrument to B&K Precision for service and repair to
ensure that safety features are maintained.
1
WARNINGS AND CAUTIONS
WARNING:
Do not alter the ground connection. Without the protective
ground connection, all accessible conductive parts (including
control knobs) can render an electric shock. The power jack and
mating plug of the power cable meet IEC safety standards.
WARNING:
To avoid electrical shock hazard, disconnect power cord before
removing covers. Refer servicing to qualified personnel.
CAUTION:
Before connecting the line cord to the AC mains, check the rear
panel AC line voltage indicator. Applying a line voltage other
than the indicated voltage can destroy the AC line fuses. For
continued fire protection, replace fuses only with those of the
specified voltage and current ratings.
CAUTION:
This product uses components which can be damaged by electrostatic discharge (ESD). To avoid damage, be sure to follow proper
procedures for handling, storing and transporting parts and
subassemblies which contain ESD-sensitive components.
WARNING and CAUTION statements, such as the following examples, denote a
hazard and appear throughout this manual. Follow all instructions contained in
these statements.
A WARNING statement calls attention to an operating procedure, practice, or
condition, which, if not followed correctly, could result in injury or death to
personnel.
A CAUTION statement calls attention to an operating procedure, practice, or
condition, which, if not followed correctly, could result in damage to or
destruction of parts or the entire product.
SAFETY SYMBOL
This symbol on an instrument indicates that the user should refer to the
operating instructions located in the manual.
Electrical shock hazard.
Chassis ground symbol.
2
Compliance Statements
Disposal of Old Electrical & Electronic Equipment (Applicable in the European
Union and other European countries with separate collection systems)
This product is subject to Directive 2002/96/EC of the
European Parliament and the Council of the European
Union on waste electrical and electronic equipment
(WEEE), and in jurisdictions adopting that Directive, is
marked as being put on the market after August 13, 2005,
and should not be disposed of as unsorted municipal
waste. Please utilize your local WEEE collection facilities
in the disposition of this product and otherwise observe
all applicable requirements.
3
Table of Contents
1 Safety Summary .......................................................................................................................... 1
2 Introduction ................................................................................................................................. 5
3 Installation .................................................................................................................................... 5
3.1 Initial Inspection .............................................................................................................. 5
3.2 Input Power Requirements......................................................................................... 6
3.3 Location ............................................................................................................................... 6
4 Controls and Indicators ........................................................................................................... 7
4.1 Front Panel ......................................................................................................................... 7
4.2 Rear Panel ........................................................................................................................... 8
5 Operating Instructions ............................................................................................................ 9
5.1 Setting the Output Voltage and Output Current ................................................ 9
5.2 Constant Voltage (CV) /Constant Current (CC) Mode ..................................... 9
5.3 System Configuration ................................................................................................. 10
5.3.1 Independent Mode ............................................................................................ 10
5.3.2 Series Tracking Mode ...................................................................................... 10
5.3.3 Parallel Tracking Mode ................................................................................... 11
5.3.4 Multiple Units in Series Mode ...................................................................... 12
5.3.5 Multiple Units in Parallel Mode ................................................................... 13
5.3.6 Fixed 5V/3A Output ......................................................................................... 14
6 Specifications ............................................................................................................................ 15
7 Maintenance .............................................................................................................................. 16
7.1 Preventive Steps ........................................................................................................... 16
7.2 When the Unit is Not Turning On .......................................................................... 17
7.3 Fuse Replacement ........................................................................................................ 17
8 Service Information ............................................................................................................... 18
9 Limited Two-Year Warranty .............................................................................................. 19
4
2 Introduction
Description
B&K Precision’s 1672 and 1673 triple output DC power supplies provide two variable
outputs (0 – 32V/ 0 – 3A [model 1672], 0-6A [model 1673]) and one fixed output (5V/3A).
The variable outputs can work independently, in series tracking, or parallel mode.
Conveniently adjust voltage and current with independent front panel knobs and bright
quad display. These power supplies are ideally suited for applications in electronic test,
production, and service, where multiple independent DC power supplies are required and
bench space is at a premium.
Features
Three independent outputs
Individual control of voltage and current controls for variable outputs
CV (constant voltage)/CC (constant current) mode operation
Separate 3-digit displays for voltage and current for variable outputs
LED indication for CV/CC mode
Overload indication LED for fixed output
Series tracking and parallel mode operation
Power On/Off switch on front panel
Input voltage selection on rear side (115 Vac/ 230 Vac)
3 Installation
3.1 Initial Inspection
This unit is tested prior to shipment. It is therefore ready for immediate use upon receipt.
The initial physical inspections should be made to ensure that no damage has been
sustained during shipment.
Inspect the packing box on receipt for any external damage. If any external damage is
evident, remove the instrument and visually inspect its case and parts for any damage. If
damage to the instrument is evident, a description of the damage should be noted on the
carrier’s receipt and signed by the driver or carrier agent. Save all shipping packaging for
inspection. Forward a report of any damage to the agent through which the unit is
procured.
5
Loading...