Agilent Technologies 5517B Operation manual

Operating and Service
Manual
This manual applies directly to Agilent Model 5517B/C/D Laser Head
having serial number prefix listed below, unless accompanied by a
"Manual Updating Changes" package indicating otherwise.
SERIAL PREFIX NUMBER: 3745A for 5517B
3744A for 5517C
3741A for 5517D
New Instruments
This manual, with enclosed "Manual Changes" sheet, applies to Agilent
5517B/C/D Laser Heads having serial number prefixes as listed on the
"Manual Change" sheets.
Older Instruments
For serial prefix numbers below those listed above, refer to Section VII for
Manual Changes.
Agilent 5517B/C/D Laser Head

©Copyright Agilent
Technologies, Inc. 1987, 1993,
2000
All Rights Reserved.
Reproduction, adaptation, or
translations without prior
written permission is prohibited,
except as allowed under the
copyright laws.
Printed: August 2000
Printed in USA
Manual part number
05517-90047
Certification and
Warranty
Certification
Agilent Technologies certifies
that this product met its
published specification at the
time of shipment from the
factory. Agilent further certifies
that its calibration
measurements are traceable to
the United States National
Institute of Standards and
Technology (formerly National
Bureau of Standards), to the
extent allowed by the Institute's
calibration facility, and to the
calibration facilities of other
International Standards
Organization members
Warranty
Agilent warrants Agilent
hardware, accessories and
supplies against defects in
materials and workmanship for
a period of one year from date of
shipment. If Agilent receives
notice of such defects during the
warranty period, Agilent will, at
its option, either repair or
replace products which prove to
be defective. Replacement
products may be either new or
like-new.
Agilent warrants that Agilent
software will not fail to execute
its programming instructions,
for the period specified above,
due to defects in material and
workmanship when properly
installed and used. If Agilent
receives notice of such defects
during the warranty period,
Agilent will replace software
media which does not execute its
programming instructions due
to such defects.
For detailed warranty
information, see back matter
Safety Considerations
General
This product and related
documentation must be
reviewed for familiarization
with this safety markings and
instructions before operation.
This product is a safety Class I
instrument (provided with a
protective earth terminal).
Before Applying Power
Verify that the product is set to
match the available line voltage
and the correct fuse is installed.
Refer to instructions in Chapter
1 of the Manual.
Before Cleaning
Disconnect the product from
operating power before
cleaning.
Safety Earth Ground
An uninterruptible safety earth
ground must be provided from
the mains power source to the
product input wiring terminals
or supplied power cable.
Warning Symbols That
May Be Used In This
Book
Instruction manual symbol; the
product will be marked with
this symbol when it is necessary
for the user to refer to the
instruction manual.
Indicates hazardous
voltages.
Indicates earth (ground)
terminal.
Safety Considerations
(contd)
or
Indicates terminal is connected
to chassis when such
connection is not apparent
Indicates Direct current
Indicates Alternating current.
WARNING
BODILY INJURY OR
DEATH MAY RESULT
FROM FAILURE TO
HEED A WARNING DO
NOT PROCEED BEYOND
A WARNING UNTIL THE
INDICATED CONDITIONS
ARE
FULLYUNDERSTOOD
AND MET.
CAUTION
Damage to equipment, or
incorrect measurement data,
may result from failure to heed
a caution Do not proceed
beyond a CAUTION until the
indicated conditions are fully
understood and met
These CAUTION labels are
required by the United States
Center for Devices and
Radiological Health. Failure to
follow their instructions may
result in personal injury
This symbol indicates laser
radiation
For additional safety and
acoustic noise information, see
back matter
Agilent Technologies, Inc 8.CD.L.03.11 97 R1 J CW1FL
Santa Clara Division

5301 Stevens Creek Boulevard
Santa Clara, California 95052-8059
END PRODUCT LASER SAFETY CONSIDERATIONS
The 5517B Laser Head complies with U.S. National Center for Devices and
Radiological Health regulations 21 CFR 1040.10 and 1040.11.
These regulations may also apply to the end product into which the 5517B will be
designed. Care must be taken to insure that the end product complies with all
applicable national and local laser safety regulations.

LASER HEAD SAFETY LABELS

TABLE OF CONTENTS
Section Title Page
I GENERAL INFORMATION........................................................................................ 1-1
1-1. Introduction 1-1
1 -4. Equipment Description 1-1
1-8. Manual Organization 1-2
1 -10. Instruments Covered by this Manual 1-2
1-14. Safety Considerations 1-3
1-16. Equipment Supplied 1-3
1-18. Available Accessories 1-3
1-22. Specifications 1-4
1-24. Recommended Test Equipment 1-5
1-26. Warranty 1-5
1-28. Options 1-6
1-29. Option 910 1-6
1-31. Support Options 1-6
II INSTALLATION............................................................................................................2-1
2-1. Introduction 2-1
2-3. Unpacking, Inspection, and Reshipment 2-1
2-5. Unpacking and Inspection .........................................................................2-1
2-7. Warranty Claims ........................................................................................2-1
2-9. Laser Tube Shipment.................................................................................2-1
2-11. Tagging for Service 2-2
2-13. Packaging for Reshipment 2-2
2-14. Installation 2-2
2-16. System Cabling 2-3
2-19. Power and Signal Connections 2-4
2-21. Grounding Considerations 2-8
2-23. Power Supply Requirements 2-8
2-25. Power Dissipation 2-8
2-27. Fusing 2-8
2-29. Dimensions 2-9
2-31. Mounting and Fixturing 2-10
2-39. Operational Verification Check 2-11
2-41. Operating Environment 2-11
2-42. Storage 2-11
2-43. Environment...............................................................................................2-11

III OPERATION..................................................................................................................3-1
3-1. Introduction 3-1
3-4. Power Application ......................................................................................3-1
3-6. HP 5517B Laser Head Front Panel Controls 3-2
3-8. HP 5517B Laser Head Rear Panel Indicators and Connectors 3-3
3-10. Operating Modes 3-4
3-12. Warmup Time Operating Notes 3-4
3-13. HP 10740A Coupler Based Systems - Manual Monitoring 3-5
3-14. Systems with HP 10745A or HP 10746A Cards - Automatic Monitoring 3-5
3-16. HP 10740A Coupler - Error Signal Information 3-5
3-17. HP 10746A Error Signal Processing 3-5
3-18. HP 10745A Background Information3-6
3-19. Program Modifications 3-6
TABLE OF CONTENTS (Continued)
Section Title Page
IV PERFORMANCE TESTS............................................................................................ 4-1
4-1. Introduction 4-1
4-3. Recommended Test Equipment 4-1
4-5. Test Record 4-1
4-7. HP 5517B Performance Test 4-1
4-9. Input Voltage Check ................................................................................. 4-1
4-11. Laser Power Output Test 4-2
4-13. Procedure 4-2
V ADJUSTMENTS.......................................................................................................... 5-1
5-1. Introduction 5-1
5-3. Safety Considerations 5-1
5-5. Recommended Test Equipment 5-1
5-7. Factory Selected Components 5-1
5-9. Adjustment Procedures 5-1
5-11. Reference Temperature Adjustments 5-2
5-14. reliminary Procedure5-2
5-17. aser Tube Current Adjustment 5-4
VI REPLACEABLE PARTS ............................................................................................ 6-1
6-1. Introduction 6-1
6-3. Reference Designations 6-1
6-5. Replaceable Parts 6-1
6-8. How to Order a Part 6-1
6-10. Parts Identification 6-1
6-14. Contacting Hewlett-Packard 6-2

6-18. Cabinet Parts and Hardware 6-2
VII MANUAL CHANGES.................................................................................................. 7-1
7-1. Introduction 7-1
7-3. Manual Cha nges 7-1
7-6. Older Instruments 7-1
VIII SERVICE .................................................................................................................. 8-1
8-1. Introduction 8-1
8-3. Theory of Operation .................................................................................. 8-1
8-5. Recommended Test Equipment ............................................................... 8-1
8-7. Service Aids............................................................................................... 8-1
8-9. Schematic Diagram Symbols and Reference Designations.................... 8-1
8-11. Cleaning Printed Circuit Boards 8-2
8-14. Safety Considerations .............................................................................. 8-2
8-16. Safety Symbols 8-4
8-18. Before and After Service Product Safety Checks 8-5
8-20. Laser Head Block Diagram Description8-5
8-28. Laser Tuning .............................................................................................8-8
8-31. Warmup Mode Tuning 8-8
8-36. Optical Mode Tuning.................................................................................8-10
8-42. Laser Assembly Optics..............................................................................8-12
8-44. Reference Receiver 8-13
8-46. Shutter Mechanism 8-13
8-48. Assembly/Schematic Locations of HP 5517B Block Diagram Elements 8-13
8-49. Rear Panel LED Indicators 8-13
TABLE OF CONTENTS (Continued)
Section Title .........................................................................................................Page
8-51. built-in Test Aids 8-13
8-54. Assembly Removal Instructions 8-15
8-65. HP 5517B Trouble Isolation 8-1 9
8-66. Quick Tuning Checkout Procedure 8-19
8-70. Testing the Liquid Crystal Switch 8-20
8-73. HP 5517B Trouble Isolation Procedure 8-23
8-75. A1 Connector Board Circuit Theory 8-24
8-78. Power Distribution 8-25
8-82. A1 Connector Board Troubleshooting 8-25
8-84. Rear Panel LED Operational Check 8-25
8-86. A2 High Voltage Power Supply Circuit Theory 8-26
8-88. High Voltage Power Supply Troubleshooting 8-27
8-90. A3 Controller/Reference BD & A4 Sampler BD Circuit Theory 8-28
8-91. Introduction 8-28

8-94. Clock (A) 8-29
8-96. Dividers (B) 8-29
8-98. State Machine (E) 8-30
8-104. Liquid Crystal (D) 8-30
8-108. Photodiode and Amplifier (D) 8-30
8-110. Warm-up Error Amplifier and Comparator 0) 8-31
8-113. Subtracting Sample and Hold (E) 8-31
8-117. Power Amplifier 8-32
8-120. Reference Receiver (L) 8-32
8-124. Line Driver (K) 8-32
8-126. Power-On Reset (POR) (G) 8-32
8-128. Laser Head Power Supply Conditioning (C) 8-32
8-130. A4 Sampler Board 8-32
8-132. A3 Controller/Reference Board Troubleshooting8-32
8-134. Standard Troubleshooting Procedures 8-33
8-136. Digital Troubleshooting 8-33
8-139. Photodiode and Amplifier Troubleshooting 8-37
8-141. Liquid Crystal Troubleshooting 8-38
8-143. Subtracting Sample and Hold Troubleshooting 8-39
8-145. Power Amplifier Troubleshooting 8-40
8-146. Warm-Up Error Amplifier Troubleshooting 8-41
8-148. Power Supply Troubleshooting 8-42
8-150. Reference Receiver Troubleshooting 8-42

Figure 1-1. HP 5517B Laser Head

Except as described below, the HP 5517C Laser Head is physically identical to the HP 5517B Laser Head. The
primary difference between the two Laser Heads is that the difference between the two HP 5517C laser beam
frequencies is approximately 2.8 MHz, versus the 2.1 MHz difference in the HP 5517B. The larger frequency
difference allows measurements involving motion to be made at higher velocities (slew rates). (Velocity is an HP
5527A/B system Measurement Capability specification.)
The larger frequency difference of an HP 5517C Laser Head does not allow its use with HP 5501A or HP 5527A
electronics in making a measurement.
HP 5527B versus HP 5527A
In order to handle the larger frequency difference of the HP 5517C, changes were made in the HP 5527A, and its
Model Number was changed to HP 5527B. An HP 5527B can replace an HP 5527A, but the reverse is not always
true.
For making a measurement, an HP 5517B (lower frequency) Laser Head can be used with an HP 5527A, an
HP5527B, or an HP 5501 A.
For making a measurement, an HP 5517C (higher frequency) Laser Head can be used with an HP 5527B, but not
with an HP 5527A or an HP 5501 A.
TEST, ADJUSTMENT, AND TROUBLESHOOTING PROCEDURES
When an HP 5517B is used with an HP 5527B, installation, operation, and indications for procedures described in
this manual are the same as with an HP 5527A.
If an HP 5527B is not available (for use as a power source for an HP 5517C), an HP 5527A (or even an HP 5501 A)
can be used. The test, adjustment, and troubleshooting procedures in this manual do not depend on or require a
particular laser beam frequency. In these procedures, test points, adjustment points, and expected test results for an
HP 5517C are the same as those for an HP 5517B.
NOTE
AN HP 10946B/C AUTOMATIC COMPENSATION BOARD MAY NOT
NECESSARILY WORK STATICALLY WITH AN HP 5517C.

SECTION I GENERAL INFORMATION
1-1. INTRODUCTION
1-2. This Operating and Service Manual contains information required to install, operate, test, adjust, and service
the Hewlett-Packard Model 5517B/C/D Laser Head. The information in this manual is specific to the HP 5517B/C/D
and supplements other publications available for Hewlett-Packard Laser Transducer products. Laser and Optics
User Manual and the HP 5527B Laser Position Transducer Designer's Guide Manual that describes how to set up,
align, and use the laser system to make interferometer measurements. The HP 5517B (but not the HP 5517C/D)
may be used with HP 5501A Laser Transducer System electronics; use of this older system is described in the HP
5501A Laser Transducer Operating and Service Manual.
1-3. The HP part number of this manual is listed on the title page.
1-4. EQUIPMENT DESCRIPTION
1-5. The HP 5517B/C/D Laser Head consists of a thermally-tuned laser tube, control circuits, a reference receiver,
and a high-voltage power supply. The laser head requires ±15 Volt supplies (refer to Table 2-2 for power
requirement details). The HP 5517B/C/D produces a frequency stabilized laser beam and a balanced reference
output (see paragraph 1-6). Status LEDs, mounted on the HP 5517B/C/D's rear panel, provide information on power
supply inputs (±15 Volts) and fuses, laser and reference frequency outputs.
1-6. The HP 5517B/C/D laser beam consists of two linearly polarized and mutually perpendicular (orthogonal)
components separated in frequency by 1.9 - 2.4 MHz (HP 5517B), 2.4 - 3.0 MHz (HP 5517C), or 3.4 - 4.0 MHz (HP
5517D). The two components have light frequencies of and F2. The higher frequency component (F2) is oriented
perpendicular to the laser base, while the lower frequency component (F1) is parallel to the laser base. An optical
receiver inside the HP 5517B/C/D detects the 2.1 MHz (HP 5517B), 2.8 MHz (HP 5517C), or 3.7 MHz (HP 5517D)
frequency difference and places it at the rear panel connector as a balanced output (called the REFerence
Frequency). The reference output is one signal used by the external electronics to measure distance traveled.
NOTE
For making a measurement:
the HP 5517C Laser Head cannot be used with the HP 5527A or the HP
5501A Laser Transducer System electronics. It must be used with the HP
5527B laser system electronics, and
the HP 5517D cannot be used with the HP 5527A/B and HP 5501A. However,
for the procedures in this manual, any combination of Laser Head and laser
system electronics is allowed.
1-7. Except as described in Table 1-1, the HP 5517B/C/D Laser Heads are physically identical. The primary
difference between the Laser Heads is the difference between their laser beam frequencies. A larger frequency
difference allows measurements involving motion to be made at higher velocities (slew rates). (Velocity is an HP
5527A/B system Measurement Capability specification.)
Table 1-1. 5517B/C/D Laser Head Comparison
HP 5517B Freq: 1.9
MHz - 2.4 MHz
HP 5517C Freq: 2.4
MHz - 3.0 MHz
HP 5517D Freq: 3.4
MHz - 4.0 MHz
HP 5501A
Yes
HP 10791A/B/C cable
No
No
HP 5527A
Yes
HP 10793A/B/C cable
No
No
HP 5527B
Yes
HP 10793A/B/C cable
Yes
HP 10793A/B/C cable
No
VMEbus HP 10895A
Yes
HP 10793A/B/C cable
Yes,
HP 10793A/B/C cable
No
VMEbus HP 10897A/B or
Yes
Yes
Yes

PC-compatible electronics
HP 10881A/B/C/D/E/F
cable
HP 10881A/B/C/D/E/F
cable
HP 10881A/B/C/D/E/F
cable
1-8. HP 5517D LASER HEAD
1-9 The HP 5517D laser head slew rate is compatible with HP 10780C/F receivers having serial number prefix 3546
or higher. Older receivers (such as HP 10780C/F receivers having serial number prefixes below 3546) may not work
with this laser head.
1-10. HP 5527B VERSUS HP 5527A
1-11 In order to handle the larger frequency difference of the HP 5517C changes were made in the HP 5527A, and
its Model Number was changed to HP 5527B. An HP 5527B can replace an HP 5527A, but the reverse is not always
true.
1-12. For making a measurement, an HP (lower frequency) Laser Head can be used with an HP 5527A, an HP
5527B. or an HP 5501A Laser Head.
1-13. For making a measurement, an HP 5517C (higher frequency) Laser Head can be used with an HP 5527B, but
not with an HP 5527A or an HP 5501A. The HP 5517D Laser Head may not be used with the HP 5507A, HP 5507B,
or HP 5501A.
1-14. TEST, ADJUSTMENT, AND TROUBLESHOOTING PROCEDURES
1-15 When an HP 5517B/C/D is used with an HP 5527B, installation, operation, and indications for procedures
described in this manual are the same as with an HP 5527A.
1-16. If an HP 5527B is not available (for use as a power source for an HP 5517B/C/D), an HP 5527A, an HP 10884A
(or even an HP 5501A) can be used. The test, adjustment, and troubleshooting procedures in this manual do not
depend on or require laser beam frequency. In these procedures, test points, adjustment points, and expected test
results for the HP 5517B/C/D are the same.
NOTE
An HP 10946B/C Automatic Compensation Board may not necessarily work statically
with an HP 5517C.
1-16. During a typical measurement application, the laser beam travels through external optics where the horizontal
and vertical components of the beam are separated. One component travels along a fixed path and returns to an
external optical receiver. The other component travels along the path (axis) to be measured and then returns to the
external receiver. The external receiver detects the frequency difference between the two components and outputs a
signal called the MEASure Frequency. The MEASure Frequency from the external receiver and the REFerence
Frequency from the laser head are compared by external, user-selected electronics.
If the distance between the external optics is fixed, the MEASure and REFerence frequencies are equal. As the
relative distance between the external optics change, the MEASure Frequency changes due to a Doppler frequency
shift. This relative change between the MEASure and REFerence Frequencies is used by the system electronics to
compute distance traveled. The laser transducer system can be configured for computer control of open- and closed-
loop positioning and measuring applications, having single or multiple axes. For more detailed information, refer to
the HP 5527B Laser Transducer Position Designer's Guide Manual or the HP 5501A Laser Transducer Operating
and Service Manual.
1-17. MANUAL ORGANIZATION
1-18. This Service Manual is organized as follows:
SECTION I, GENERAL INFORMATION: covers Equipment Description, Manual Organization, Instruments
Covered by this Manual, Safety Considerations, Equipment Supplied, Available Accessories, Specifications,
Recommended Test Equipment, and Warranty Information.
Table 1-1. 5517B/C/D Laser Head
Comparison

SECTION II, INSTALLATION: covers Grounding Considerations, Power Requirements, interconnecting
Cabling, operating and Storage Environments, Storage and Shipment, and Packaging.
SECTION III, OPERATION: provides operating information and covers Equipment Front and Rear Panel
Features, Warm-up Time Considerations, and Program Notes.
SECTION IV, PERFORMANCE TESTS: provides Safety Considerations, Performance Tests, and a Test Record.
SECTION V, ADJUSTMENTS: covers Safety Considerations, Test Equipment Required, Adjustment
Procedures, and an Adjustment Record.
SECTION VI, REPLACEABLE PARTS: includes Table of Replaceable Parts including illustrated parts
breakdowns of chassis and mechanical assemblies, Abbreviations, Ordering Information, and the HP Direct
Mail Order System.
SECTION VII, MANUAL CHANGES: describes how to update or backdate the manual for prefixes other than
those listed on the title page.
SECTION VIII, SERVICE: contains Safety Considerations, Theory and Block Diagram Descriptions, Trouble
Isolation, Troubleshooting, Schematics, and Component Locations.
1-19. INSTRUMENTS COVERED BY THIS MANUAL
1-20. Attached to each instrument is a serial plate. The serial number is in the form: O000AOOOOO. It is in two
parts; the first four digits and the letter are the serial number prefix and the last five digits are the suffix The prefix
is the same for all identical instruments, it changes only when a change is made to the instrument. The suffix is
assigned sequentially and is unique to the individual instrument. This manual applies to instruments with the
serial number prefix listed on the title page of this manual.
1-21. An instrument manufactured after the printing date of this manual may have a serial number prefix that is
not listed on the title page. This unlisted serial number prefix indicates the instrument is different from those
described in this manual. The manual for this newer instrument is accompanied by a yellow "Manual Changes"
supplement. This supplement contains updating information that explains how to change the manual to be
applicable to newer instruments.
1-22. In addition to the new serial number prefix change information, the supplement may contain information for
correcting errors in the manual (errata).
1-23. SAFETY CONSIDERATIONS
1-24. The HP 5517B/C/D Laser Head is designed to receive its power from a Safety Class I product. It is designed
and tested in accordance with international safety standard IEC* 348. It is also a Class 11 Laser Product certified as
conforming to U.S. National Center for Devices and Radiological Health Regulations 21
CFR** 1040.10 and 1040.11. The instrument and the manual should be inspected and reviewed for safety markings
and instructions before operation. A safety summary is included on the page following the title page
1-25. EQUIPMENT SUPPLIED
1-26. The HP 5517B/C/D Laser Head is supplied with a test polarizer. The HP part number for the test polarizer is
1000-0616.
1-27. AVAILABLE ACCESSORIES
1-28. The HP 10791A/B/C Power Supply/Reference and HP 10793A/B/C Laser Head cables may be ordered from
Hewlett-Packard. The connector on the cable and the laser head are "keyed" to go together only one way. The HP
logo on the cable connector's "boot" will face "up" when the connections are correct. The cable connectors have
locking rings, which take about 1/3 turn clockwise to secure the cable to the laser head's mating connector. Laser
head cables may be ordered from Hewlett-Packard. Figures 2-1 and 2-2 show photos of the cables.
1-29. The HP 10791A/B/C Power Supply/Reference Cable is used to connect the HP 5517B to the HP 5501A Laser
Transducer System electronics. The difference between the A, B, and C models is their length.

•HP 10791A......................................................................3 meters (10 feet)
•HP 10791B......................................................................7 meters (23 feet)
•HP 10791C......................................................................20 meters (65 feet)
Figure 2-3 shows how to connect the HP 5517B to the HP 5501A system power supply and HP 10760A Counter
using the HP 10791A/B/C Cable. Figure 2-4 illustrates the cables use in connecting the HP 5517B to the HP 5501A
system power supply and the HP 10764C Fast Pulse Converter.
1-30. The HP 10793A/B/C Laser Head Cable is used to connect the HP 5517B to the HP 5527A Laser Position
Transducer System electronics. The difference between the A, B, and C models is their length.
•HP 10793A......................................................................3 meters (10 feet)
•HP 10793B......................................................................7 meters (23 feet)
•HP 10793C......................................................................20 meters (65 feet)
Figure 2-5 shows how to connect the HP 5517B to the HP 5527A Laser Position Transducer System electronics (HP
5507A).
* IEC, International Electrotechnical Commission
** CFR, Code of Federal Regulations (U.S.A.)

1-31 SPECIFICATIONS
1-32. Table 1-2 lists the specifications and performance characteristics for the HP 5517B/C/D Laser Head.
Table 1-2. HP 5517B/C/D Laser Head Specifications and Performance Characteristics
Description: The HP 5517B/C/D Laser Head contains an automatically turned Helium-Neon laser, circuits to
control the laser, and a reference optical receiver. The laser generates a coherent, collimated, two-frequency
beam of light. This is a Class II Laser Product conforming to U.S. National Center for Devices and Radiological
Health Regulations 21 CFR 1040.10 and 1040.11.
Vacuum Wavelength (Nominal): 632.991372 nanometers (5517B)
632.991354 nanometers (5517C)
632.991354 nanometers (5517D)
Vacuum Wavelength Accuracy (3 sigma, lifetime): ±0.02 ppm
with factory calibration to MIL-STD 45662 or ISO 9001/2 Commercial Calibration
Vacuum Wavelength Stability (typical 1 hour): ±0 002 ppm
Vacuum Wavelength Stability (typical lifetime): ±0.02 ppm
Beam Diameter: 6 mm (0.24 in) typical
Maximum Beam Power Output: 1 milliwatt
Minimum Beam Power Output: 180 microwatts
Warm-Up Time: less than 10 minutes (4 minutes typical)
Power Requirements:
The HP 5517B/C/D require the following power inputs:
+15 Volts ±0.3 Volts at 2.2 Amperes maximum -15
Volts ± 0.3 Volts at 0.02 Amperes maximum
Heat Dissipation:
23 Watts (during operation) 35
Watts (during warm-up)
Safety Feature: Front shutter to clock Laser Beam
Outputs:
Reference signal: 1.9 - 2.4 MHz (5517B), 2.4 - 3.0 MHz (5517C), or 3.4 - 4.0 MHz (5517D) differential square
wave (DC isolated). TTL levels are compatible with all Laser Transducer System inputs.
Environmental Conditions:
Temperature (Operating): 0 to 40°C (32 to 104°F)
Temperature (Non-Operating): Can be stored or shipped in environments within the range of -40 to +75°C.
NOTE
This unit should also be protected from temperature extremes that could cause
condensation within the instrument.
Relative Humidity (Operating): 0 to 95% Non-condensing
Magnetic Field Strength (Non-operating): Does not exceed 5.25 mGauss at a distance of 460 cm (15 ft) from any
point on the surface of the packaged laser head.
Enclosure: NEMA Type 12
Dimensions: 35.9 x 13.2 x 12.8 cm
Weight: 3.4 Kg (7.5 lb)
Clearance Required for Cabling: 10.16 cm (4 in) beyond rear panel.
1-33. RECOMMENDED TEST EQUIPMENT
1-34. Equipment required to maintain the HP 5517B/C/D Laser Head is listed in Table 1-3. Other equipment may be
substituted if it meets or exceeds the critical specifications listed in the table.

Table 1-3. Recommended Test Equipment
INSTRUMENT
USE*
CRITICAL SPECIFICATIONS
RECOMMENDED EQUIPMENT
(Equipment having equivalent
characteristics maybe substituted)
Signature Multimeter
T
Detects TTL level signals
HP 5005A/B
Oscilloscope
T
100 MHz Bandwidth
HP 1740A (if available)
Laser Power Meter
T
Range: 1 microwatt to 1
milliwatt
Accuracy: ±10%
Graseby Optronics, Model 351L
(Phone [phone])
Clip-on Milliammeter
T,A
10 mA range
accuracy ±0.1
mA
HP 428B
Logic Pulser
T
TTL Level
HP 546A
Current Tracer
T
Sensitivity: 1
mA to 1 amp
HP 547A
Logic Clip
T
TTL Compatible
16-pin IC
mounting
HP 548A
Logic Probe
T
TTL/CMOS Capability with
Pulse Memory
HP 545A
Digital Voltmeter
T
DC Volts:
Floating Inputs
Input Resistance: >10 MΩ
Range: 1, 10, 20 Volts DC
Accuracy: 0.1%
HP 3435A
* P = Performance Test; C = Calibration; A =
Adjustments; T = Troubleshooting; S = Shortened
Performance Test
1-35. WARRANTY
1-36. The warranty statement for the instrument including the laser tube is located on the inside cover of this
manual.

1-37. OPTIONS
1-38. The following options are available:
Model/Option Description
5517B, 5517D
Option 030 Replace standard feet with 3 electrically insulated feet.
5517C
Option 003 3mm beam
Option 009 9mm beam
Option 030 Replace standard feet with 3 electrically insulated feet.
The options listed below can be ordered with any HP 5517B/C/D Laser Head:
Option AV4 Laser and Optics Users Manual
Option 1BN MIL-STD 45662 Calibration
Option 910 Additional Laser Head Manual
Option UK6 ISO 9001/2 Commercial Calibration Certification with Test Data
Option W50 5-Year Return Repair Service
Support option W50 is available only at time of purchase. Service contracts are available from Hewlett-
Packard for instruments which did not include support options at time of purchase For information, contact
your nearest Hewlett-Packard Sales and Support office (offices are listed at the back of this manual)

2-19
SECTION II INSTALLATION
2-1. INTRODUCTION
2-2. This section provides installation instructions for the HP 5517B/C/D Laser Head including unpacking,
inspection and reshipment, installation, operating environment, and storage. Installation includes information on
grounding considerations, power supply requirements, power dissipation, fusing, dimensions, and mounting and
fixturing.
2-3. UNPACKING, INSPECTION, AND RESHIPMENT
2-4. The following paragraphs contain information for unpacking and inspection, warranty claims, laser tube
shipment, tagging for service, and packaging for reshipment.
TO AVOID HAZARDOUS ELECTRIC SHOCK, DO NOT PERFORM
ELECTRICAL TESTS WHEN THERE ARE SIGNS OF SHIPPING
DAMAGE TO ANY PORTION OF THE OUTER ENCLOSURE (COVERS,
PANELS, CONNECTORS, LEDS, ETC.).
ALWAYS REMOVE POWER FROM THE LASER HEAD PRIOR TO
CONNECTING OR DISCONNECTING LASER HEAD CABLING TO OR
FROM THE HP 5517B/C/D REAR PANEL.
2-5. Unpacking and Inspection
2-6. Inspect the shipping container for damage. If the shipping container or cushioning material is damaged, it
should be kept until the contents of the shipment have been checked for completeness and the instrument has been
checked mechanically and electrically. Procedures for checking electrical performance are given in Section IV. If the
contents are incomplete, if there is mechanical damage or defect, or if the instrument or some component fails the
performance tests, notify the nearest Hewlett-Packard office. If the shipping container is damaged, or the cushioning
material shows signs of stress, notify the carrier as well as the Hewlett-Packard office Keep the shipping materials
for the carrier's inspection. The HP office will arrange for repair or replacement at HP's option without waiting for a
claim settlement.
2-7. Warranty Claims
2-8. Contact the nearest HP Sales Office (see list at the end of this manual) for information relative to warranty
claims.
2-9. Laser Tube Shipment
NOTE
The laser tube assembly MUST be shipped in an approved HP container.
2-10. The laser tube assembly should only be shipped in an HP container designed for that purpose. In addition, the
container must indicate that the laser tube contains magnetic material. If it is necessary to ship a laser tube, contact
your nearest HP Sales Office for an approved container.
2-11. Tagging for Service
2-12. If the instrument is being returned to Hewlett-Packard for service, please complete a repair tag indicating type
of service required and attach it to the instrument.

2-20
2-13. Packaging for Reshipment
A. Original Packaging
1. The same containers and materials used in factory packaging can be obtained through Hewlett-Packard
Sales Offices listed at the rear of this manual.
2. In any correspondence refer to the equipment by model number.
B. Other Packaging Methods
1. If it becomes necessary to reship equipment, good commercial packing should be used. Contract packaging
companies can provide dependable custom packaging on short notice The following general instructions
should be followed when repackaging with commercially available materials.
2. If shipping to a Hewlett-Packard Support Office or Center, attach a tag indicating the type of service
required, return address, and model number.
3. Wrap the equipment in heavy paper or plastic.
4. Use a strong shipping container. A double-wall carton made of 350 pound test material is adequate.
5. Use enough shock-absorbing material (three to four inch layer) around all sides of the equipment to provide
a firm cushion and prevent movement inside the container.
6. Seal the shipping container securely.
7. Mark the shipping container FRAGILE to assure careful handling.
2-14. INSTALLATION
2-15. The following paragraphs provide installation information for the HP 5517B/C/D Laser Head including system
cabling, grounding considerations, power supply requirements, power dissipation, fusing, and mounting and
fixturing.
2-16. System Cabling
2-17. The HP 5517B/C/D Laser Head is designed for use with either the HP 5501A Laser Transducer System or the
HP 5527A Laser Position Transducer system. The HP 10791A/B/C Power Supply/Reference Cable (Figure 2-1)
connects the HP 5517B to the HP 5501A system electronics, and the HP 10793A/B/C Laser Head Cable (Figure 2-2)
connects the HP 5517B to the HP 5527A system electronics (HP 5507A).
2-18. The HP 10791A/B/C and HP 10793A/B/C cables are both available in three lengths. The A model is 3 meters
(10 feet) in length, the B model is 7 meters (23 feet), and the C model is 20 meters (65 feet).
2-19. The HP 5517D Laser Head is designed for use with PC-compatible, VMEbus, or HP 5527B system electronics.
The following chart shows the HP cables available for use with this laser head.