Spectra-Physics Pulseo Series User manual

Pulseo Series
User’s Manual
High Peak Power, Diode Pumped, Q-Switched Laser System
Pulseo 355-20
Pulseo 355-10
Pulseo 355-8-300
Pulseo 532-34
Spectra-Physics
3635 Peterson Way
Santa Clara, CA 95054
Part Number 90041652
October 2011
Revision B
This laser product is intended to be sold to a
manufacturer of OEM products for use as a
component (or replacement thereof) in those
products. As such, this product is exempt from
performance standards of United States Code
of Federal Regulations, Title 21, Chapter 1 –
Food and Drug Administration, Department of
Health and Human Services, Subchapter J –
Parts 1040.10 (a), (1) or (2).

© 2011 by Newport Corporation, Santa Clara, CA. All rights reserved. No part of this manual may be reproduced
or copied without the prior written approval of Newport Corporation.
It is Newport's policy to comply with applicable export laws and regulations, including U.S. export laws. Products
manufactured by Newport, including technical information required for the use of such Products, are subject to
compliance with all U.S. export laws and regulations, including the Export Administration Regulations
administered by the U.S. Department of Commerce, Bureau of Industry and Security, and may not be exported
or re-exported in violation of such regulations.
Spectra-Physics makes no express or implied representations or warranties with respect to the contents or use
of this manual, and specifically disclaims any implied warranties of merchantability or fitness for a particular
purpose. In no event is Spectra-Physics liable for any direct, indirect, special, incidental, or consequential
damages resulting from any defects in this documentation.
Every effort has been made to ensure that the information in this manual is accurate. Spectra-Physics further
reserves the right to revise this manual and to make changes to its contents at any time, without obligation to
notify any person or entity of such revisions or changes.
If you encounter any difficulty with the content or style of this manual or encounter problems with the laser itself,
please let us know. “Form for Problems and Solutions” aids in bringing such issues to our attention.

v
Preface
About this Guide
The Spectra-Physics Pulseo system is a solid-state, Q-switched laser that produces laser
pulses at adjustable repetition rates from 1
Hz to 400 kHz. The system is comprised of
the Pulseo laser head, the D-Series power supply, and a closed-loop chiller.
This Pulseo Series User’s Manual contains information for safely installing and
operating your Pulseo diode-pumped, Q-switched, green or ultraviolet laser system.
This guide is written for the Pulseo 355-20, 355-10, and 532-34 models.
Overview of this Guide
The Pulseo Series User’s Manual includes the following sections:
Chapter 1, “Introduction,” is a brief overview of the Pulseo system.
Chapter 2, “Laser Safety and Compliance,” contains warnings and important
information regarding laser safety. Review this chapter before using the Pulseo
system.
Chapter 3, “Pulseo Laser Description,” contains a description of the components
used in the Pulseo system, along with system specifications and outline drawings.
Chapter 4, “Controls, Indicators, and Connections,” describes the external control
features of the Pulseo system.
Chapter 5, “Preparing for Operation,” provides instructions for installing the USB
driver and GUI software.
Chapter 6, “Operation,” describes how to operate the Pulseo system, including
Control Panel features and use, triggering and gating techniques, and using the
LASER CONTROL interface.
Chapter 7, “Maintenance,” provides straightforward procedures necessary to keep
the Pulseo system properly maintained.
Chapter 8, “Diagnostics and Troubleshooting,” provides a list of fault codes and
proper responses, plus a list of field replaceable parts.
Chapter 9, “Customer Service,” describes our product warranty, return policy, and
training programs, and provides information on contacting customer service,
including a list of our service center locations.
Chapter 10, “Field Replaceable Units (FRUs),” lists the available field replaceable
unit (FRU) parts.
Appendix A, “Serial Command Interface,” lists the command codes used in the
serial interface.
Appendix B, “Nalco MSDS,” provides material safety data sheet (MSDS) supplied
by the Nalco Company for the algaecide and cleaner used in the Pulseo closed-loop
cooling system.

vi Preface
“Form for Problems and Solutions” is our feedback form, which you can use to
report problems with our instruments or documentation, submit comments, suggest
new features, or request more information.
“Notes” provides space to keep track of the service history for your Pulseo laser.

vii
Environmental Specifications
CE Electrical Equipment Requirements
For information regarding the equipment needed to provide the required electrical
service, refer to specification EN-60309, “Plug, Outlet and Socket Couplers for
Industrial Uses,” listed in the official Journal of the European Communities.
Environmental Specifications
The environmental conditions under which the laser system function are listed on the
Spectra-Physics website at http://www.newport.com/pulseo.
These specifications reflect indoor use conditions.
Feature Specification
Altitude Up to 3000 m
Temperatures 18°C to 35°C
Maximum relative humidity 85% non-condensing for temperatures up to 31°C
Mains supply voltage Do not exceed ±10% of the nominal voltage
Insulation category II
Pollution degree 2
Also see “Specifications” for power, heat, and cooling
specifications.
FCC Regulations
This equipment has been tested and found to comply with the limits for a Class A digital
device pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction
manual, can cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in which case the
user is required to correct the interference at his own expense.

viii Environmental Specifications
Modifications to the laser system not expressly approved by Spectra-Physics could void
your right to operate the equipment.

ix
Warning Conventions
Warning Symbols
The following symbols are used throughout this manual to draw your attention to
situations or procedures that require extra attention. They warn of hazards to your
health, damage to equipment, sensitive procedures, and exceptional circumstances. All
messages are set apart by a thin line above and below the text as shown here.
Laser radiation is present.
Condition or action may present a hazard to personal safety.
Condition or action may present an electrical hazard to
personal safety.
Condition or action may cause damage to equipment.
Action may cause electrostatic discharge and cause damage
to equipment.
Condition or action may cause poor performance or
error.
Text describes exceptional circumstances or makes a special
reference.

Do not touch.
Appropriate laser safety eyewear should be worn during this
operation.
Refer to the manual before operating or using this device.
Factory Trained
Serviceable only by Spectra-Physics factory trained personnel.
xWarning Conventions

xi
Standard Abbreviations
The following units, abbreviations, and prefixes are used in this Spectra-Physics
manual.
Unit Abbreviations
Quantity Unit Abbreviation
mass kilogram kg
length meter m
time second s
frequency hertz Hz
force newton N
energy joule J
power watt W
electric current ampere A
electric charge coulomb C
electric potential volt V
resistance ohm Ω
inductance henry H
magnetic flux weber Wb
magnetic flux density tesla T
luminous intensity candela cd
temperature Celsius C
pressure pascal Pa
capacitance farad F
angle radian rad

xii Standard Abbreviations
Prefixes
Prefix Power Abbreviation Prefix Power Abbreviation
tera (1012) T milli (10-3) m
giga (109) G micro (10-6)μ
mega (106) M nano (10-9) n
kilo (103) k pico (10-12) p
deci (10-1) d femto (10-15) f
centi (10-2) c atto (10-18) a
Abbreviations and Acronyms
Abbreviation Description
AC alternating current
ACGIH American Conference of Governmental and Industrial
Hygienists
ALPS active laser purification system
ANSI American National Standards Institute
AOM acousto-optic modulator
AR antireflection
CDRH Center for Devices and Radiological Health
CW continuous wave
DC direct current
FPS first pulse suppression
fs femtosecond or 10-15 second
LBO lithium triborate
MOPA master oscillator power amplifier
NC normally closed
ns nanosecond or 10-9 second
ps picosecond or 10-12 second
QSW Q-switch
RF radio frequency

Standard Abbreviations xiii
SCPI Standard Commands for Programmable Instruments
SHG second harmonic generator
THG third harmonic generator
UV ultraviolet
VAC volts, alternating current
VDC volts, direct current
λwavelength
WEEE waste electrical and electronic equipment
Abbreviation Description

xiv Standard Abbreviations

xv
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Warning Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix
Standard Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxi
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxiii
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Pulseo Laser System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
D-Series Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
System Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Environmental Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Patents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Chapter 2: Laser Safety and Compliance. . . . . . . . . . . . . . . . . . . . . . 2-1
Important Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Maximum Emission Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Safety Precautions for Class IV High Power Lasers . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Safety Device Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Emission Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Safety Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Shutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
On/Off Controls and Power Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Keyswitch Interlock/Secondary On and Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Operating the Laser via a User-Created GUI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
CRDH Drawings and Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
D-Series Power Supply Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Safety Warning Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
D-Series Power Supply Radiation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
CE Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
WEEE Recycling Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Other Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Additional Safety Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

xvi Table of Contents
Laser Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
Equipment and Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
Chapter 3: Pulseo Laser Description . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Accessory Kit Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Nalco. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Pulseo Laser Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Laser Cavity Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Q-Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Frequency Doubling and Tripling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Laser Power Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Shutter Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
E-Pulse™ Constant Energy Feature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
EternAlign™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Data Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Condensation Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
System Component Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
System Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
D-Series Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Diode Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Laser Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Active Laser Purification System (ALPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Non-Optical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Utilities (Power Requirements) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Fuse Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Outline Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Laser Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
Electrical Diagrams (Interlock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
Chapter 4: Controls, Indicators, and Connections . . . . . . . . . . . . . . . . 4-1
Pulseo Laser Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
D-Series Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Table of Contents xvii
Front Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Rear Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Opto-Isolated Connections of the LASER CONTROL Interface . . . . . . . . . . . . . . . . 4-8
Opto-Isolator Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Opto-Isolator Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Chiller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Chapter 5: Preparing for Operation . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Installing the USB Driver and User GUI Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Installing the Pulseo USB Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Installing the Pulseo GUI Control Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Chapter 6: Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Pulseo GUI Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
First Power Up and Initial Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Turn On/Turn Off Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
The Shutter Control Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Mode 1: Using Serial Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Mode 2: Using the Laser Control Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Mode 3: Via the Shutter Control Connector on the Laser Head . . . . . . . . . . . . . 6-12
Safety Mode and Process Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Adjusting UV Pulse Energy by Pulse Width Modulation . . . . . . . . . . . . . . . . . . . . . 6-13
Case 1: Full-Pulse Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Case 2: Reduced-Pulse Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Case 3: Minimal Pulse Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Case 4: Generating Bursts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Case 5: Burst with Reduced Pulse Energy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Control Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
External-Triggering Timing Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Method A: Internal Trigger and Internal Gate . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Method B: Internal Pulse Trigger: External Gating via ENABLE BNC . . . . . . . . 6-20
Method C: Internal Pulse Trigger: External Gating via LASER CONTROL . . . . 6-21
Method D: External Pulse Trigger: One-Pin Operation, Constant Frequency . . 6-22
Method E: External Pulse Trigger: One-Pin Operation, Variable Frequency . . . 6-23
Method F: External Pulse Trigger: External Gating . . . . . . . . . . . . . . . . . . . . . . 6-23
Method G: External Pulse Trigger: Equalizing the First Pulse . . . . . . . . . . . . . . 6-24
Method H: External Pulse Trigger: Running Below Efreq for Constant Energy
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
System Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
Short Term or Overnight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
Extended Turn Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

xviii Table of Contents
Chapter 7: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Filter Cleaning Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Cleaning the D-Series Power Supply Filters and Grills. . . . . . . . . . . . . . . . . . . . .7-1
Changing the ALPS Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Low Output Power Recovery and Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
Optimizing Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
Tuning Harmonic Crystal Temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Translating the THG Crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Translating the SHG Crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-9
Important Notes on Controlling Pulseo Output Power . . . . . . . . . . . . . . . . . . . . . . .7-11
Adjusting Diode Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11
Changing Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11
Cautionary Note on Changing Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
Diode Laser Current Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
Chiller Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-13
Changing the Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-13
Coolant Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-14
Chapter 8: Diagnostics and Troubleshooting . . . . . . . . . . . . . . . . . . . 8-1
Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
System Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Chapter 9: Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1
Contacting Customer Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1
Return Policy and Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2
Service Training Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2
Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3
Chapter 10: Field Replaceable Units (FRUs) . . . . . . . . . . . . . . . . . . . .10-1
Appendix A: Serial Command Interface . . . . . . . . . . . . . . . . . . . . . . . A-1
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Basic Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Important Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Less Common Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12
Appendix B: Nalco MSDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Form for Problems and Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Form-1

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Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notes-1
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index-1

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