Metrologic S4800 microQuest Series User manual

METROLOGIC INSTRUMENTS, INC.
IS4800 microQuest®Series
Single-Line Scanning Engine
Installation Guide

Copyright
© 2005 by Metrologic Instruments, Inc. All rights reserved. No part of this
work may be reproduced, transmitted, or stored in any form or by any means
without prior written consent, except by reviewer, who may quote brief
passages in a review, or provided for in the Copyright Act of 1976.
Products and brand names mentioned in this document are trademarks of
their respective companies.

ii
TABLE OF CONTENTS
Introduction
Models and Accessories...................................................................................... 1
Components of the microQuest........................................................................ 2
Labels............................................................................................................... 2
Mounting Specifications
Scan Engine Dimensions ................................................................................. 3
Exit Beam Specifications.................................................................................. 4
Enclosure Specifications
Grounding..................................................................................................... 5
Magnetic Sensitivity...................................................................................... 5
Electrostatic Discharge (ESD) Cautions....................................................... 5
Printed Circuit Board Component Clearance................................................ 6
Airborne Contaminants and Foreign Materials ............................................. 6
Beam Clearance........................................................................................... 6
Output Window Properties............................................................................ 7
Output Window Coatings.............................................................................. 8
Output Window Angle................................................................................... 8
Depth of Field vs Minimum Bar Code Element................................................... 11
Design Specifications ......................................................................................... 12
Scan Engine Terminations
IS4813 Pinout Connections............................................................................ 14
IS4815 Pinout Connections............................................................................ 15
Scan Sense Timing
Timing Diagram .............................................................................................. 16
Scan Sense .................................................................................................... 16
Barcode Element Time Calculation ................................................................ 17
Laser and Product Safety
Regulatory Requirements............................................................................... 18
Europe............................................................................................................ 19
United States.................................................................................................. 20

iii
TABLE OF CONTENTS
Canada........................................................................................................... 21
Cautions ......................................................................................................... 22
Limited Warranty ................................................................................................ 23
Patents ............................................................................................................... 24
Index .................................................................................................................. 25
Contact Information and Office Locations........................................................... 27

1
INTRODUCTION
The IS4800 microQuest®series are miniature single-line scan engines designed
for direct integration into customer decode-equipped OEM devices.
The microQuest non-decode scan engine is equipped with a multitude of
features including:
•100 Scans per Second, Typical.
•Support for 3.3VDC Input Voltage (IS4813 Model)
•Support for 5VDC Input Voltage (IS4815 Model)
•A 650 nm Bright Laser Diode
•A narrow exit angle to provide precision beam positioning.
•Automatic (Hardware) Scan Sense
•A rugged industry standard size die cast chassis with threaded mounting
holes.
•A 10-pin ZIF Connector Industry Standard Pinout for Seamless Integration
into Portable Devices
•Low Mass (11 grams) Industry Standard Size
The manufacturer of the end equipment must register with agencies such
as the Food and Drug Administration (FDA). The specifications required
for registration are not obtainable until the OEM manufacturer uses the
microQuest Engine in its final configuration. Therefore, it becomes the
responsibility of the manufacturer who incorporates the scan engine into
their product to comply with all federal laser safety regulations.
The manufacturer must submit a Laser Product Report for the FDA in the
US. Metrologic will assist its customers in complying with the necessary
procedures.
THIS DEVICE DOES NOT COMPLY WITH 21 CFR 1040.
USE ONLY AS COMPONENT.
Caution: The laser is susceptible to permanent damage if enabled less
than 50 ms after the Scan Enable has been activated. This requirement
must be strictly adhered to or the limited warranty on page 23 is void.
Refer to Scan Sense Timing on pages 16 - 17 for additional information.
MODELS AND ACCESSORIES
Model Description
IS4813 Non-Decode, 3.3VDC Scan Engine
IS4815 Non-Decode, 5VDC Scan Engine
19-07335 10-pin Flex Cable

2
COMPONENTS OF THE MICROQUEST
Figure 1. IS4800 Series Components
ITEM NO. DESCRIPTION
 Pin Locator Holes (specifications on page 3)
 Threaded Mounting Points (specifications on page 3)

Exit Beam Location, Laser Light Aperture
AVOID EXPOSURE – LASER LIGHT
IS EMITTED FROM THIS APERTURE
 Die Cast Chassis
 10-Pin ZIF Connector
 Printed Circuit Board
LABELS
The serial number/model number label is located on engine chassis (see below).
Figure 2. Serial Number Label (Enlarged For Illustration Purposes)

3
MOUNTING SPECIFICATIONS
Scan Engine Dimensions
Figure 3. IS4800 Series Dimensions
Specifications are subject to change without notice.

4
MOUNTING SPECIFICATIONS
Exit Beam Specifications
Figure 4. IS4800 Series Exit Beam Specifications
Specifications are subject to change without notice.

5
MOUNTING SPECIFICATIONS
Enclosure Specifications
The IS4800 scan engine series was specifically designed for integration into
custom housings for OEM applications. The scan engine’s performance will be
adversely affected or permanently damaged when mounted in an unsuitable
enclosure.
THIS DEVICE DOES NOT COMPLY WITH 21 CFR 1040.
USE ONLY AS COMPONENT.
The limited warranty (on page 23) is void if the following
considerations are not adhered to when integrating the
IS4800 series scan engine into a system.
Grounding
If the scan engine is going to be installed in a grounded host:
•Use an insulator between the engine chassis and host. The die-cast
engine chassis is at +Vcc.
•Use shoulder washers to isolate the screws from the host if the mounting
screws are metallic.
Magnetic Sensitivity
The scan engine can be negatively affected by magnetic fields:
•Use only non-magnetic screws and locating pins.
•Do not mount the engine within 1.00" of any magnetic materials.
Electrostatic Discharge (ESD) Cautions
The scan engine has exposed electrical components.
•DO NOT touch the leads of the Visible Laser Diode (VLD) or other
components.
•ALWAYS use grounding wrist straps and a grounded work area when
handling the engine.
•Mount the engine in a housing that is designed for ESD protection and
stray electric fields.
ESD has the ability to modify the electrical characteristics of a
semiconductor device, possibly degrading or even destroying the
device. ESD also has the potential to upset the normal operation
of an electronic system, causing equipment malfunction or failure.

6
MOUNTING SPECIFICATIONS
Enclosure Specifications
Printed Circuit Board (PCB) Component Clearance
WARNING: When designing the IS4800 into the final product, be sure to eliminate
all possible means of shorting Resistors R3 and R25 in the IS4800.
A short could enable the scan engine to emit Class 3R radiation. Any
CDRH filing will require a disclosure of the design ensuring a method
to mitigate a potential short.
Figure 5. IS4800 PCB Clearence Warning
Airborne Contaminants and Foreign Materials
The scan engine has very sensitive miniature electrical and optical
components that must be protected from airborne contaminants and foreign
materials. In order to prevent permanently damaging the scan engine and
voiding the limited warranty (on page 23), the scan engine enclosure must be:
•Sealed to prevent infiltration by airborne contaminants and foreign
materials such as dust, dirt, smoke, and smog.
•Sealed to protect against water, humidity and be non-condensing.
Beam Clearance
•Keep the scan engine’s beam sweep free from obstructions. For detailed
information on the exit beam angle and location please refer to Exit Beam
Specifications on page 4.
•A dark matte-finish on the internal walls of the housing can be utilized to
avoid internal beam reflections.

7
MOUNTING SPECIFICATIONS
Enclosure Specifications
Output Window Properties
Please contact a Metrologic representative to coordinate the best
window material required to maintain laser safety requirements for
your application.
An improperly placed window has the potential to seriously reduce
the scan engine’s performance. Careful consideration must be made
when designing the output window’s distance and angle placement
relative to the scan engine’s exit beam and chassis.
Follow these guidelines when designing the output window.
•Acceptable window materials include; Acrylic (cast or molded), float glass,
CR-39, and Polycarbonate.
Molded polycarbonate is high in strength but might exhibit a
phenomenon called birefringence. Birefringence refers to multiple
indices of refraction within one material. This condition will induce
polarization effects that can be detrimental to scan performance of
the engine. Check with a Metrologic representative before utilizing
a transparent polycarbonate material for the output window.
•The exit window material should have a spectral transmission of at least
85% from 640 nm to 690 nm and should block shorter wavelengths.
•Red cell-cast acrylic is recommended.
•The exit window should exhibit a wavefront distortion (transmission) of no
more than 0.2 wavelengths peak-to-valley maximum over any 0.08"
diameter within the clear aperture.
•The clear aperture of the output window should extend beyond the 54°
beam sweep (see Exit Beam Specifications on page 4).
•It should have a 60-40 surface quality and be optically flat, clear, free of
scratches, pits, or seeds. If possible recess the window into the housing for
protection or apply a scratch resistance coating (see Output Window
Coatings on page 8).
•Apply an anti-reflective coating to the window surfaces to reduce the
possibility of reflective light interfering with the engine’s performance due to
the window angle (see Output Window Coatings on page 8).

8
MOUNTING SPECIFICATIONS
Enclosure Specifications
Output Window Coatings
•Anti-Reflection
An anti-reflective coating can be applied to the inside and/or outside of the
window to reduce the possibility of internal beam reflections interfering with
the scan performance of the engine. If an anti-reflective coating is applied
it is recommended that it be on both sides of the window providing a 0.5%
maximum reflectivity on each side from 640 to 690 namometers at the
nominal window tilt angle. The coating must also meet the hardness
adherence requirements of MIL-M-13508.
•Polysiloxane Coating
Applying a polysiloxane coating to the window surface can help protect the
window from surface scratches and abrasions that may interfere with the
scan performance of the engine. Recessing the window into the housing
can also provided added protection against surface damage such as
scratches and chips. If an anti-reflective coating is used, there is no need
to apply a polysiloxane coating.
Output Window Angle
An improperly placed window has the potential to seriously reduce the
scan engine’s performance. Careful consideration must be made
when designing the output window’s distance and angle placement
relative to the scan engine’s exit beam and chassis.
It is important that angle of the window not be perpendicular to the exit beam
of the scan engine. The angle of the window can cause the beam’s laser
light to reflect off the inside of the window back into the scan engine’s optics
ultimately degrading the engine’s performance.
Please refer to the figures on page 9 and page 10 for specifications on the
minimum allowable window angle required to avoid reflective beam
interference.

9
MOUNTING SPECIFICATIONS
Enclosure Specifications
Minimum Allowable Window Position
Required To Avoid Detrimental Internal Reflective Beam Interference
at Positive Exit Beam Angle Tolerance
Figure 6.
Exit Beam
Elevation Angle α
Minimum Projected Distance
from the Engine’s Base to the
Window’s Internal Surface (L)
Minimum
Window Angle θ
+2.5° 5.0 28.0°
+2.5° 10.0 14.5°
+2.5° 15.0 10.5°
+2.5° 20.0 8.0°
+2.5° 25.0 7.0°
+2.5° 30.0 6.5°
+2.5° 35.0 6.0°
+2.5° 40.0 5.5°
+2.5° 45.0 5.0°
+2.5° 50.0 5.0°
Specifications are subject to change without notice.

10
MOUNTING SPECIFICATIONS
Enclosure Specifications
Minimum Allowable Window Position
Required To Avoid Detrimental Internal Reflective Beam Interference
at Negative Exit Beam Angle Tolerance
Figure 7.
Exit Beam
Depression Angle β
Minimum Projected Distance
from the Engine’s Base to the
Window’s Internal Surface (M)
Minimum
Window Angle θ
-2.5° 5.0 23.5°
-2.5° 10.0 16.5°
-2.5° 15.0 12.5°
-2.5° 20.0 10.5°
-2.5° 25.0 9.0°
-2.5° 30.0 8.0°
-2.5° 35.0 7.5°
-2.5° 40.0 7.0°
-2.5° 45.0 6.5°
-2.5° 50.0 6.0°
Specifications are subject to change without notice.

11
DEPTH OF FIELD VS MINIMUM BAR CODE ELEMENT
Figure 8. Depth of Field vs Minimum Bar Code Element
MINIMUM BAR CODE ELEMENT WIDTH
A B C D E
mm .13 .19 .26 .33 .49
mils 5.2 7.5 10.4 13 19.5
For additional information please refer to the Barcode Element Time Calculation
on page 17.

12
DESIGN SPECIFICATIONS
IS4800 Series Engine
Operational
Light Source: Visible Laser Diode (VLD) @ 650 nm
Laser Power: 1 mW
Depth of Scan Field: 50 mm – 254 mm (2" – 10") for
0.33 mm (13 mil) bar codes
Width of Scan Field: 74 mm (2.9") @ 50 mm (2.0");
290 mm (11.4") @ 254 mm (10.0")
Scan Speed: 100 Scan Lines per Second Typical
Scan Pattern: Single Scan Line
Minimum Bar Width: 0.127 mm (5.0 mil)
Print Contrast: 35% Minimum Reflectance Difference
Number Characters Read: Decode Dependent
Roll, Pitch, Yaw 42°, 68°, 52°
Mechanical
Dimensions (maximum): 24.7 mm x 14.6 mm x 11.9 mm
(.97" x 0.57" x 0.47")
Weight (maximum): 11 g (0.39 oz)
Termination: 10-pin ZIF Connector
Mounting: 2 Mounting Points,
M1.6 mm Threaded, 2 mm Maximum Depth
Locators: 2 Locating Points,
0.8 mm Diameter, 1.0 mm Depth
Specifications are subject to change without notice.

13
DESIGN SPECIFICATIONS
IS4800 Engine Series
Electrical
IS4813 Engine 3.3VDC ± 10%
Input Voltage:
IS4815 Engine 5.0VDC ± 5%
IS4813 Engine 412.5 mW
Power Consumption:
IS4815 Engine 500 mW
IS4813 Engine < 125 mA @ 3.3VDC
Operating Current: IS4815 Engine < 100 mA @ 5.0VDC
IS4813 Engine < 20 mA @ 3.3VDC
Standby Current:
IS4815 Engine < 10 mA @ 5.0VDC
Laser Class: See Laser and Product Safety on page 18
EMC: See Laser and Product Safety on page 18
Environmental
Operating Temperature: -20°C to 50°C (-4°F to 122°F)
Storage Temperature: -40°C to 70°C (-40°F to 158°F)
Humidity: 5% to 95% relative humidity, non-condensing
Light Levels: Sunlight: 107,000 Lux (10,000 ft-candles)
Ambient: 4842 Lux (450 ft-candles)
Shock: 2000 G
Specifications are subject to change without notice.

14
SCAN ENGINE TERMINATIONS
IS4813 Pinout Connections
IS4813 10-Pin ZIF
Figure 9. 10-Pin ZIF
Pin Signal Name Function
1 No Connect No Connect
2 Power 3.3V ± 10%
3 No Connect No Connect
High = Laser OFF
4 Laser Enable*
Low = Laser ON,
only if pin 5 (scan enable) is also Low
High = Engine OFF
5 Scan Enable*
Low = Engine ON
High = Bar
6 Digitized Bar Pattern
Low = Space
7 Start of Scan
Level changes from high to low, or low to high,
when the laser changes direction at the start of
the scan line.
8 Ground Power Ground
9 Ground Power Ground
10 No Connect No Connect
* See Scan Sense Timing on page 16.

15
SCAN ENGINE TERMINATIONS
IS4815 Pinout Connections
IS4815 10-Pin ZIF
Figure 10. 10-Pin ZIF
Pin Signal Name Function
1 No Connect No Connect
2 Power 5.0V ± 5%
3 No Connect No Connect
High = Laser OFF
4 Laser Enable*
Low = Laser ON,
only if pin 5 (scan enable) is also Low
High = Engine OFF
5 Scan Enable*
Low = Engine ON
High = Bar
6 Digitized Bar Pattern
Low = Space
7 Start of Scan
Level changes from high to low, or low to high,
when the laser changes direction at the start of
the scan line.
8 Ground Power Ground
9 Ground Power Ground
10 No Connect No Connect
* See Scan Sense Timing on page 16.

16
SCAN SENSE TIMING
Timing Diagram
The Timing Diagram (see Figure below) illustrates the correct power up
procedure to ensure that the laser diode is not damaged upon start up of the unit.
Upon start up, both scan Enable and Laser Enable are to be held high. In this
state, both the scan mirror and the laser diode are not functional.
A minimum of 2ms after the unit has obtained the proper working voltage;
Scan Enable can be driven low to turn on the scan mirror. A minimum of 50 ms
must elapse after enabling the scan before driving the Laser Enable low to turn
on the laser diode.
Caution: The laser is susceptible to permanent damage if enabled less than 50
ms after the Scan Enable has been activated. This requirement must
be strictly adhered to or the limited warranty on page 23 is void.
The unit is now ready to scan bar code data.
Figure 11. Timing Diagram
Scan Sense
The scan sense signal is a 50% duty cycle square wave with the transitions from
High to Low indicating a change in the scan direction, (see Figure 10). Valid
scan data occurs between these transitions.
If scan enable is High (off) the scan sense signal will stay High. If for some
reason the scan mirror is stopped (damage for example) when Scan enable is
Low (on) then Scan Sense will remain High.