Stanford Research Systems SR470 Manuale utente
Operation Manual
Shutter Controller
SR470
Stanford Research Systems
Revision 1.0 •April 7, 2009
Distribution in the UK & Ireland
Lambda Photometrics Limited
Lambda House Batford Mill
Harpenden Herts AL5 5BZ
United Kingdom
W: www.lambdaphoto.co.uk
T: +44 (0)1582 764334
F: +44 (0)1582 712084
Certification
Stanford Research Systems certifies that this product met its published specifications at the time
of shipment.
Warranty
This Stanford Research Systems product is warranted against defects in materials and workman-
ship for a period of one (1) year from the date of shipment.
Service
For warranty service or repair, this product must be returned to a Stanford Research Systems
authorized service facility. Contact Stanford Research Systems or an authorized representative
before returning this product for repair.
Information in this document is subject to change without notice.
Copyright c
Stanford Research Systems, Inc., 2009. All rights reserved.
Stanford Research Systems, Inc.
1290–D Reamwood Avenue
Sunnyvale, CA 94089 USA
Phone: (408) 744-9040 •Fax: (408) 744-9049
Printed in U.S.A. Document number 9-01634-903
SR470 Shutter Controller
Contents
General Information iii
Safety and Preparation for Use ................ iv
Line Voltage ........................... iv
Line Cord and Grounding ................... iv
Line Fuse ............................. iv
Service .............................. iv
Environment ........................... iv
Laser Safety ........................... v
Symbols ............................. vi
Notation ............................. vii
Specifications .......................... viii
1 Getting Started 1 – 1
1.1 Introduction to the Instrument ............. 1–2
1.2 Front-Panel Operation .................. 1–2
1.3 The SR470 Rear Panel .................. 1–19
2 Remote Operation 2 – 1
2.1 Index of Common Commands .............. 2–2
2.2 Alphabetic List of Commands .............. 2–5
2.3 Introduction ........................ 2–8
2.4 Commands ......................... 2–8
2.5 Command List ....................... 2–10
2.6 Error Codes ........................ 2–25
i
ii Contents
SR470 Shutter Controller
General Information
The SR470 Shutter Controller is a flexible instrument capable of pow-
ering, controlling, and providing I/O interfaces for an external SR470
Series Laser Shutter head.
Shutter control modes include manual control from the front panel,
control by an external TTL signal, and control by internal timing,
including triggerable bursts.
Remote operation is supported with GPIB, RS-232 and Ethernet com-
puter interfaces. All instrument functions can be controlled and read
over any of the interfaces. Shutter faults are automatically detected
and result in audible, visible and electronic alarms.
iii
iv General Information
Safety and Preparation for Use
Dangerous voltages, capable of causing injury or death, are present
WARNING in this instrument. Use caution whenever the instrument covers
are removed. Do not remove the covers while the unit is plugged
into a live outlet.
Never connect any of the shutter output ports to anything besides an
CAUTION SR470 Series Laser Shutter head.
Line Voltage
The universal input power supply of the SR470 accommodates any
voltage in the range 90 VAC to 260 VAC, with a frequency in the range
47 Hz to 63 Hz.
Line Cord
The SR470 has a detachable, three-wire power cord for connection
to the power source and to a protective ground. The exposed metal
parts of the instrument are connected to the outlet ground to protect
against electrical shock. Always use an outlet which has a properly
connected protective ground.
The shields of the six rear-panel BNC ports, the rear-panel Chassis
Ground binding post, and the metal chassis of the instrument are all
connected to Earth through the power-line-outlet ground.
Line Fuse
There are two line fuses internal to the SR470 that may not be serviced
by the user.
If no front panel LEDs are lit when line power is applied and the
power switch is in the “on” position, contact Stanford Research Sys-
tems.
Service
Do not attempt to service or adjust this instrument unless another
person, capable of providing first aid or resuscitation, is present.
Do not install substitute parts or perform any unauthorized modi-
fications to this instrument. Contact the factory for instructions on
how to return the instrument for authorized service and adjustment.
SR470 Shutter Controller
General Information v
Environment
This product is intended for use only in a clean and dry laboratory
environment. Operation in other environments may cause damage
to the product. To reduce the risk of fire or electrocution do not
expose this product to rain or excessive moisture. Be careful not to
spill liquid of any kind onto or into the product.
Laser Safety
Certain hazards are always present when working with laser radia-
tion. Visible and invisible beams of light have the potential to cause
serious bodily injury including blindness or death and to cause sig-
nificant damage to property. While the SR470 is designed for use
with laser systems, it is fully the users responsibility to ensure
WARNING that safe operating conditions are maintained and to provide for
fail-safe operation whenever an equipment failure could lead to a
hazardous situation.
SR470 Shutter Controller
vi General Information
Symbols you may Find on SRS Products
Symbol Description
Alternating current
Caution - risk of electric shock
Frame or chassis terminal
Caution - refer to accompanying documents
Earth (ground) terminal
Battery
Fuse
On (supply)
Off (supply)
SR470 Shutter Controller
General Information vii
Notation
The following notation will be used throughout this manual.
A warning means that injury or death is possible if the instructions
WARNING are not obeyed.
A caution means that damage to the instrument or other equipment
CAUTION is possible.
Typesetting conventions used in this manual are:
•Front-panel buttons are set as [Button].
•Front-panel indicators are set as Remote.
•Remote command names are set as *IDN?.
•Literal text other than command names is set as OFF.
Remote command examples will all be set in monospaced font. In
these examples, data sent by the host computer to the SR470 are set
as straight teletype font, while responses received by the host
computer from the SR470 are set as slanted teletype font.
SR470 Shutter Controller
viii General Information
Specifications
Operation
Shutter Type SR470 Series Laser Shutters.
Shutter Output Drives one shutter.
Shutter State Open or closed, controlled either manually from
front-panel inputs or from external TTL input.
Shutter Polarity User selectable for “normally open” or “nor-
mally closed” operation.
Control Modes Internally or externally triggered with timing
generation, direct external level control, or
manual.
Manual Control Front-panel [OPEN] and [CLOSED] buttons
command shutter to the corresponding state.
[RESET] button commands shutter to its Nor-
mal state.
Timing Sequence Pre-delay, exposure time, post-delay. Each time
interval may be set independently with 0.1 ms
resolution, up to 9,999.9999 seconds.
Bursts Timing sequence may be repeated after a trigger,
from 1 to 99,999,999 times, or continuously.
Sync Output The rear-panel Sync Out TTL signal mirrors
whether the shutter is presently commanded to
the open or closed state.
Alignment Mode Front-panel [Align] button (active when in man-
ual mode) opens and closes shutter at 1 Hz chop-
ping rate to assist with mechanical alignment.
Gate/Inhibit The rear panel Aux I/O 1 port can be configured
to allow or disallow TTL control depending on
the value of the input TTL level.
Fault Detection
and Reporting Automatic detection of shutter disconnect or
fault, with front-panel indicator LED, Rear panel
TTL Alarm output plus audible alarm, which
can be muted from the front panel.
Display Blanking Front panel LEDs can be disabled.
Remote Operation All instrument functions are controllable over
GPIB, RS-232, and Ethernet interfaces.
SR470 Shutter Controller
Indice
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