Tektronix 7053 Instruction Manual
Model 7053 High Current Scanner Card
instruction Manual
Contains Operating and Servicing Information
WARRANTY
LIMITATION OF WARRANTY
Model 7053 High Current Card
Instruction Manual
0 1987, Keithley Instruments, Inc.
Test Instrumentation Group
All rights reserved.
Cleveland, Ohio, U.S.A.
May 1996, Third Printing
Document Number: 7053-901-01 C
SPECIFICATIONS
MODEL 7053 HIGH CURRENT SCANNER CARD
CHANNELS PER CARD: 10
CONTACT CONFIGURATION: 2-p& ltirm A with common Guard. Unselected
inputs are shorted (HI to LO) via user removable jumpers.
CONNECTOR TYPE: Quick disconnect screw terminal, No. 18 AWG maximum wire
size.
RELAY DRIVE CURRENT: ROrnA (PC’ day) typicat.
MAXIMUM SIGNAL LEVEL: 3OOV. 5A, lOOVA peak (resistive load).
CONTACT LIFE: IO’ closures (cold switching); 10’ closures (at maximum signal level)
CONTACT RESISTANCB: 0.15fl maximum.
CONTACT POTENTIAL: ImV maximum.
ACTUATION TIME <15ms exclusive of mainframe.
CHANNEL ISOLATION: >lO*O and <50pF.
lNP”T ISOLATION,
Differential: >lO’R and <150pF.
Comman Made: >10’11 and <150pF.
COMMON MODE VOLTAGE: 30W peak.
ENVIRONMENT,
Operating: 0” to 5O”C, up to 35°C at 70% R.H.
Storage: -25°C to +65”C.
DIMENSIONS, WEIGHT: 32mm high x 114mm wide x 272mm long (l’%” x 4%” x
10%“). Net weight 0.37kg (l3oz.).
Specifications subject 1~ change without notice.
MODEL 7053 TABLE OF CONTENTS
SECTION 1 GENERAL INFORMATION
1.1
Introduction.. ............. .......................
Warranty Information
1.2
ManualAddenda.. ....................................
1.3
Safety Symbols and Terms. .............................
1.4
SECTION 2 OPERATION
Introduction..
2.1
Safety Precautions
2.2
2.3
2.4
2.5
2.6
2.7
3.1
3.2
3.3
4.1
4.2
4.3
4.4
4.5
...............................................
Wiring
Installation
Operation Considerations ...............................
Model 7053 Modification ...............................
Switch Terminology ...................................
SECTION 3 SERVICING INFORMATION
Introduction.. ........................................
Required Test Equipment
Performance Verification. ...............................
SECTION 4 REPLACEABLE PARTS
Introduction ..........................................
ReplaceableParts ......................................
Ordering Information
FactoryService
Component Layout and Schematic Diagram ...............
..........................................
..................................
................... .................... 3
.....................................
............................... 7
...................................
.......................................
LIST OF FIGURES
1
1
1
1
3
3
3
4
4
4
7
7
11
11
11
11
11
SwitchTerminology ...................................
1
Model 7053 Channel Isolation Test Circuit
Model 70530pen and Close Test Circuit. ..................
Model 7053 Input Isolation (DifferentialI Test Circuit
Model 7053 Input Isolation ICommon Mode) Test Circuit
Model7053ComponentLayout
Model 7053 Schematic Diagram .........................
.......................... 13
LIST OF TABLES
1
Recommended Test Equipment ..........................
Model 7053 Electrical Replaceable Paris
2
Model 7053 Mechanical Replaceable Parts
3
................... 12
5
................. 8
9
......... 9
10
15
7
................. 12
SECTION 1
GENERAL INFORMATION
1.1 INTRODUCTION
The Model 7053 is a high current scanner card with the maximum capabilities
of 3OOV. 5A or lOOV*A switching Iresistive load onlyl. Signal levels of this
magnitude may be found in applications such as power semiconductor
testing. The Model 7053 can also be used in monitoring currents from DC
power supplies in general purpose ATE bench or laboraton, applications. For
easy input and output wiring the Model 7053 is designed with quick disconnect screw terminals. Each channel has a HI and LO connection with a common guard. Each of the 10 channels consist of a single Z-pole Form C relay.
The card is field installable in an appropriate Keithley .scanner mainframe (e.g.
Model 7051 via the mainframe’s rear panel. Channel switching is accomplished
in less than 15msec (exclusive of mainframe) and the specified relay life is
greater than IO’closures (greater than IO5 closures at maximum signal levels).
With the Model 7053’s high channel isolation (>lO%l), it is well insulated from
cross channel noise and interference. The Model 7053’s high input isolation
l>lO%l reduces loading to a minimum.
1.2 WARRANTY INFORMATION
Warranty information is stated on the inside front cwer of this manual. If there
is a need for service, contact the Keithley representative or authorized repair
facility in your area. Check the back cover of this manual for addresses. The
service form supplied at the end of the manual should be used to provide the
repair facility with adequate information concerning any difficulty.
1.3 MANUAL ADDENDA
Improvements or changes to this manual will be explained on an addendum included with this manual.
1.4 SAFETY SYMBOLS AND TERMS
The symbol
tions.
The symbol
terminal(s).
The WARNING used in this manual explains dangers that could result in per-
sonal injun, or death.
The CAUTION used in this manual explains hazards that could damage the
denotes that the user should refer to the operating instruc-
A
denotes that a high voltage may be present on the
If
instrument.
1
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