Aspect Medical Systems BIS VIEW User manual

BIS VIEWMonitoring System
OPERATING MANUAL
Rx only
EC REP
Aspect Medical Systems, Inc. Aspect Medical Systems International B.V.
One Upland Road Rijnzathe 7d2
Norwood, MA 02062 3454 PV De Meern
U.S.A. The Netherlands
(Tel) 617-559-7000 Tel: [phone]
(Tel) 888-BIS INDE(X) (U.S. only) Fax: [phone]
(Fax) 617-559-7400 [email protected]
[email protected]
www.aspectmedical.com 070-0089 1.01

BIS VIEWMonitoring System
OPERATING MANUAL
Copyright, 2007, Aspect Medical Systems, Inc. All rights reserved. Copying or other
reproduction of this document is prohibited without prior written consent of Aspect
Medical Systems, Inc.
BIS VIEW is a trademark of Aspect Medical Systems, Inc.
Aspect, Bispectral Index, BIS, the BIS logo, BISx, the BISx logo and Zipprep are trademarks
of Aspect Medical Systems, Inc. and are registered in the U.S.A., E.U. and other countries.

TABLE OF CONTENTS
ABOUT THIS MANUAL........................................................................................ i
INTRODUCING THE BIS VIEW MONITORING SYSTEM............................. ii
1SAFETY PRECAUTIONS........................................................................... 1-1
1.1 Warnings....................................................................................................................... 1-1
1.2 Cautions........................................................................................................................1-3
1.3 Key to Symbols ............................................................................................................ 1-6
2SYSTEM SETUP AND PREPARATION FOR USE ................................. 2-1
2.1 BIS VIEW Monitor Setup and Checkout .................................................................. 2-1
2.2 Environment................................................................................................................. 2-2
2.2.1 Shipping and Storage Environment....................................................................................................... 2-2
2.2.2 Operating Environment .......................................................................................................................... 2-2
2.2.3 Power Requirements and System Grounding.................................................................................... 2-3
2.2.4 Electromagnetic Compatibility Requirements.................................................................................... 2-4
2.2.5 Site Preparation: Mounting the Monitor ............................................................................................. 2-4
2.2.5.1 Mounting the Monitor using the Pole Clamp .......................................................................... 2-4
2.2.5.2 Optional Mounting Accessories................................................................................................. 2-5
2.3 The BIS VIEW Monitoring System – Equipment and Supplies .............................. 2-6
2.3.1 The BIS VIEW Monitor........................................................................................................................... 2-7
2.3.1.1 Front Panel...................................................................................................................................... 2-7
2.3.1.2 Soft Keys ......................................................................................................................................... 2-7
2.3.1.3 Alarm Key....................................................................................................................................... 2-7
2.3.1.4 ON/Standby button ...................................................................................................................... 2-7
2.3.1.5 Rear Panel....................................................................................................................................... 2-8
2.3.1.6 Integral Battery .............................................................................................................................. 2-9
2.3.2 BISx ........................................................................................................................................................... 2-10
2.3.3 Patient Interface Cable (PIC)............................................................................................................... 2-11
2.3.4 BIS Sensor................................................................................................................................................ 2-11
2.4 Cable Connections..................................................................................................... 2-11
2.5 Start Procedure ......................................................................................................... 2-12
2.5.1 Starting the Monitor for the First Time ............................................................................................ 2-12
2.5.2 Starting the Monitor from Standby Mode......................................................................................... 2-12

2.6 Initial Menu Settings.................................................................................................. 2-13
2.6.1 Language Selection................................................................................................................................. 2-13
2.6.2 Date and Time........................................................................................................................................ 2-13
2.6.3 Save Settings............................................................................................................................................ 2-14
3OPERATING THE BIS VIEW MONITORING SYSTEM........................ 3-1
3.1 Preparing for Operation ............................................................................................. 3-1
3.2 Sensor Check................................................................................................................ 3-4
3.3 BIS Number Display Screen ....................................................................................... 3-6
3.3.1 BIS (Bispectral Index) Value................................................................................................................... 3-6
3.3.2 Battery Icon............................................................................................................................................... 3-7
3.3.3 Alarm Icon................................................................................................................................................. 3-7
3.3.4 Signal Quality Indicator........................................................................................................................... 3-8
3.3.5 Electromyograph (EMG) Indicator ....................................................................................................... 3-8
3.3.6 Case ID....................................................................................................................................................... 3-8
3.3.7 Message Region ........................................................................................................................................ 3-8
3.3.8 Soft Key Screen Selections..................................................................................................................... 3-9
3.4 BIS Trend Display Screen with Sensor Status.......................................................... 3-9
3.4.1 BIS Trend Graph .................................................................................................................................... 3-10
3.4.2 Target Range ........................................................................................................................................... 3-10
3.5 BIS Trend Display Screen with EEG........................................................................ 3-10
3.6 Menu Selections ......................................................................................................... 3-11
3.6.1 Chart Data............................................................................................................................................... 3-11
3.6.2 Export Data............................................................................................................................................. 3-12
3.6.3 Setup ......................................................................................................................................................... 3-13
3.6.3.1 Screen Options............................................................................................................................ 3-13
3.6.3.2 Alarms: The Alarms Menu.........................................................................................................3-14
3.6.3.2.1 Target Range ..................................................................................................................... 3-15
3.6.3.2.2 Alarm Volume Menu / Test Alarm Volume ................................................................ 3-16
3.6.3.3 Smoothing Rate: The Smoothing Rate Menu......................................................................... 3-16
3.6.3.4 Date/Time..................................................................................................................................... 3-17
3.6.3.5 Settings: Active and Saved Monitor Settings.......................................................................... 3-17
3.6.4 Maintenance ............................................................................................................................................ 3-18
3.6.5 Diagnostics .............................................................................................................................................. 3-18
3.6.6 Demo Case.............................................................................................................................................. 3-18
3.7 Ending a Case ............................................................................................................. 3-19
3.8 Data Transfer ............................................................................................................. 3-19
3.9 How the BIS VIEW Monitoring System Works..................................................... 3-20
3.9.1 Bispectral Index (BIS) ............................................................................................................................ 3-21
3.9.2 System Self-Checks................................................................................................................................ 3-22
3.9.3 Data Memory.......................................................................................................................................... 3-23
3.9.4 Battery Operation.................................................................................................................................. 3-23
4QUICK REFERENCE GUIDE..................................................................... 4-1

5PREVENTIVE MAINTENANCE, CARE AND CLEANING.................... 5-1
5.1 Care and Cleaning ....................................................................................................... 5-1
5.2 Maintenance ................................................................................................................. 5-2
5.2.1 Checking Cable Integrity ........................................................................................................................ 5-2
5.2.2 System Checkout ..................................................................................................................................... 5-2
5.2.3 Checking the Battery............................................................................................................................... 5-3
5.2.4 Replacing the Battery .............................................................................................................................. 5-4
5.2.5 Replacing the Power Supply................................................................................................................... 5-4
5.2.6 Checking Leakage Current..................................................................................................................... 5-5
5.3 Technical Documentation .......................................................................................... 5-6
5.4 Instrument Identification ............................................................................................ 5-7
6DIAGNOSTICS AND TROUBLESHOOTING ........................................ 6-1
6.1 Maintenance ................................................................................................................. 6-1
6.1.1 Software Update....................................................................................................................................... 6-1
6.1.2 Default Settings......................................................................................................................................... 6-2
6.1.3 Language..................................................................................................................................................... 6-2
6.2 Diagnostics.................................................................................................................... 6-3
6.2.1 Impedance Checking................................................................................................................................ 6-3
6.2.2 Diagnostic Codes ..................................................................................................................................... 6-4
6.2.3 System Configuration Information ....................................................................................................... 6-4
6.2.4 Advanced Diagnostics ............................................................................................................................. 6-4
6.3 BIS VIEW System Messages and Corrective Actions.............................................. 6-5
6.4 Using the Reset button ............................................................................................. 6-11
6.5 What to do if the BIS VIEW Monitoring System Requires Service..................... 6-11
7APPENDIX I: MENUS, PROCESSED VARIABLES AND GLOSSARY. 7-1
7.1 Menu Map ..................................................................................................................... 7-1
7.2 Menu Listing ................................................................................................................. 7-2
7.3 Processed EEG Variables ............................................................................................ 7-3
7.4 Glossary......................................................................................................................... 7-4
8APPENDIX II: SPECIFICATIONS, WARRANTY, SOFTWARE
LICENSE AGREEMENT AND PATENTS ....................................................... 8-1
8.1 Specifications................................................................................................................ 8-1

8.2 Electromagnetic Compatibility Specifications ......................................................... 8-5
8.2.1 Accessories................................................................................................................................................ 8-5
8.2.2 IEC 60601-1-2:2001 Electromagnetic Compatibility Guidance ...................................................... 8-6
8.3 Warranty .................................................................................................................... 8-11
8.4 Software License Agreement................................................................................... 8-13
8.5 List of Patents ............................................................................................................ 8-15

TABLE OF FIGURES
Figure 1 - Symbol Key (page 1 of 2) .............................................................................................1-6
Figure 2 - Pole Clamp...................................................................................................................... 2-5
Figure 3 - The BIS VIEW Monitoring System............................................................................ 2-6
Figure 4 - Rear Panel ....................................................................................................................... 2-8
Figure 5 - BISx and PIC................................................................................................................ 2-10
Figure 6 - Connecting the PIC....................................................................................................... 3-3
Figure 7 - Sensor Check Graphic Screen...................................................................................... 3-4
Figure 8 - BIS Number Display..................................................................................................... 3-6
Figure 9 - Screen Features – BIS Trend Display Screen with Sensor Status........................... 3-9
Figure 10 - BIS Trend Display Screen with EEG..................................................................... 3-10
Figure 11 - Trend Display with Target Range ........................................................................... 3-14
Figure 12 - BIS Range Guidelines ............................................................................................... 3-21
Figure 13 - Replacing the Power Supply....................................................................................... 5-4
Figure 14 - BIS VIEW Menu Map ................................................................................................ 7-1

i
ABOUT THIS MANUAL
This Operating Manual contains all of the information you need to set up and operate the
AspectMedical Systems’ BIS VIEWMonitoring System (Figure 3). It also includes
specific cleaning and test procedures you may occasionally be required to perform. Although
this manual is intended for trained medical personnel, it does not assume prior knowledge or
experience with operator-programmable medical electronics devices.
Keep this Operating Manual with the BIS VIEW monitor for use by the operator. This
manual is also intended to be a service information manual for service technicians or
biomedical engineering personnel.
Before attempting to set up or use the BIS VIEW system, please familiarize yourself
with the safety information provided in this section.

ii
INTRODUCING THE BIS VIEW MONITORING SYSTEM
Introduction
The BIS VIEW Monitoring System is a user-configurable patient monitoring system
designed to monitor the hypnotic state of the brain based on acquisition and processing of
EEG signals. The BIS VIEW system processes raw EEG signals to produce a single
number, called the Bispectral Index, or BIS, which correlates with the patient's level of
hypnosis.
The BIS VIEW monitor display consists of:
The current BIS number
Trend graph of BIS values over time
Raw EEG waveforms in real time
Various signal quality indicators (EMG, SQI, SR)
Alarm Indicator and Messages
The system performs self-tests to ensure that the monitor and its components are
functioning properly and that impedance levels of patient sensors are within acceptable
limits. Easy-to-use menus allow the user to change the data display and review stored data.

iii
Important Information about Using BIS Monitoring
BIS monitoring systems are intended for use under the direct supervision of a licensed
healthcare practitioner or by personnel trained in their proper use. They are intended for use
on adult and pediatric patients within a hospital or medical facility providing patient care to
monitor the state of the brain by data acquisition of EEG signals.
The BIS may be used as an aid in monitoring the effects of certain anesthetic agents;
and its usage with certain anesthetic agents may be associated with a reduction in primary
anesthetic use and a reduction in emergence and recovery time.
Use of BIS monitoring to help guide anesthetic administration may be associated with the
reduction of incidence of awareness with recall in adults during general anesthesia and
sedation.
BIS is a complex monitoring technology intended for use as an adjunct to clinical judgment
and training. Clinical judgment should always be used when interpreting the BIS in
conjunction with other available clinical signs. Reliance on the BIS alone for
intraoperative anesthetic management is not recommended. As with any monitored
parameter, artifacts and poor signal quality may lead to inappropriate BIS values. Potential
artifacts may be caused by poor skin contact (high impedance), muscle activity or rigidity,
head and body motion, sustained eye movements, improper sensor placement and unusual
or excessive electrical interference. BIS values should also be interpreted cautiously with
certain anesthetic combinations, such as those relying primarily on either ketamine or nitrous
oxide/narcotics to produce unconsciousness. Due to limited clinical experience in the
following applications, BIS values should be interpreted cautiously in patients with known
neurological disorders and those taking other psychoactive medications.
The BIS education site, www.biseducation.com, offers relevant information and published
articles on the clinical use of BIS. In addition, there is a “Monitoring Consciousness Using
the Bispectral Index During Anesthesia” Clinician’s Pocket Guide available on the website
and through your local Aspect Representative.
For more information, please contact Aspect Medical Systems at [phone]. If you
require additional information on the use of BIS, please contact Aspect Medical Systems
Clinical Support at 800-442-8655 or 617-559-7655 if calling from outside of the USA.

SECTION 1 SAFETY PRECAUTIONS
______________________________________________________________________
1-1
SECTION 1
1SAFETY PRECAUTIONS
INTRODUCTION
Caution:
Carefully read this entire manual before using the monitor in a clinical
setting.
WARNINGS, CAUTIONS, AND NOTES
The terms warning, caution, and note have specific meanings in this manual.
A WARNING advises against certain actions or situations that could result in
personal injury or death.
A CAUTION advises against actions or situations that could damage equipment,
produce inaccurate data, or invalidate a procedure, although personal injury is
unlikely.
A NOTE provides useful information regarding a function or procedure.
KEY TO SYMBOLS
A key to the symbols used on the BIS VIEW system appears at the end of this section.
1.1 Warnings
EXPLOSION HAZARD: DO NOT USE THE BIS VIEW SYSTEM IN A
FLAMMABLE ATMOSPHERE OR WHERE CONCENTRATIONS OF
FLAMMABLE ANESTHETICS MAY OCCUR.
MONITOR IS NOT DESIGNED FOR USE IN MRI ENVIRONMENT.
CONSIDERATIONS WHEN USING ELECTRO CONVULSIVE THERAPY
(ECT) EQUIPMENT DURING BIS MONITORING:
SEPARATE ECT ELECTRODES FROM THE BIS SENSOR AS MUCH AS
POSSIBLE TO MINIMIZE THE EFFECT OF INTERFERENCE.
CERTAIN ECT EQUIPMENT MAY INTERFERE WITH THE PROPER
FUNCTION OF THE BIS MONITORING SYSTEM. CHECK FOR
COMPATIBILITY OF EQUIPMENT DURING PATIENT SETUP.
USE ONLY THE POWER CORD SUPPLIED BY THE MANUFACTURER.
NEVER ADAPT THE PLUG FROM THE MONITOR TO FIT A NON-
STANDARD OUTLET.

SECTION 1 SAFETY PRECAUTIONS
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1-2
U.S.A. REQUIREMENT: FOR PROPER GROUNDING, THE POWER
RECEPTACLE MUST BE A THREE-WIRE GROUNDED OUTLET. A
HOSPITAL GRADE OUTLET IS REQUIRED. NEVER ADAPT THE THREE-
PRONG PLUG FROM THE MONITOR TO FIT A TWO-SLOT OUTLET. IF
THE OUTLET HAS ONLY TWO SLOTS, MAKE SURE THAT IT IS
REPLACED WITH A THREE-SLOT GROUNDED OUTLET BEFORE
ATTEMPTING TO OPERATE THE MONITOR.
IF THE INTEGRITY OF THE EXTERNAL PROTECTIVE EARTH GROUND
IS IN DOUBT, THE BIS VIEW SYSTEM SHALL BE OPERATED FROM ITS
INTERNAL BATTERY POWER SOURCE ONLY.
BE SURE THE MONITOR IS MOUNTED SECURELY IN PLACE TO AVOID
PERSONAL OR PATIENT INJURY.
WHEN CONNECTING EXTERNAL EQUIPMENT (e.g., DATA CAPTURE
COMPUTER), THE SYSTEM LEAKAGE CURRENT MUST BE CHECKED
AND MUST BE LESS THAN THE IEC 60601-1-1 LIMIT.
THE USE OF ACCESSORY EQUIPMENT NOT COMPLYING WITH THE
EQUIVALENT SAFETY REQUIREMENTS OF THIS EQUIPMENT MAY
LEAD TO A REDUCED LEVEL OF SAFETY OF THE RESULTING SYSTEM.
CONSIDERATION RELATING TO THE CHOICE SHALL INCLUDE:
USE OF THE ACCESSORY IN THE PATIENT VICINITY
EVIDENCE THAT THE SAFETY CERTIFICATION OF THE
ACCESSORY HAS BEEN PERFORMED IN ACCORDANCE TO THE
APPROPRIATE IEC 60601-1 AND/OR IEC 60601-1-1 HARMONIZED
NATIONAL STANDARD.
DUE TO ELEVATED SURFACE TEMPERATURE, DO NOT PLACE BISxIN
PROLONGED DIRECT CONTACT WITH PATIENT’S SKIN, AS IT MAY
CAUSE DISCOMFORT.
THE CONDUCTIVE PARTS OF ELECTRODES OR SENSOR AND
CONNECTORS SHOULD NOT CONTACT OTHER CONDUCTIVE PARTS,
INCLUDING EARTH.
TO REDUCE THE HAZARD OF BURNS DURING USE OF HIGH-
FREQUENCY SURGICAL EQUIPMENT, THE SENSOR OR ELECTRODES
SHOULD NOT BE LOCATED BETWEEN THE SURGICAL SITE AND THE
ELECTRO-SURGICAL UNIT RETURN ELECTRODE.
THE SENSOR MUST NOT BE LOCATED BETWEEN DEFIBRILLATOR
PADS WHEN A DEFIBRILLATOR IS USED ON A PATIENT CONNECTED
TO THE BIS VIEW SYSTEM.

SECTION 1 SAFETY PRECAUTIONS
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1-3
TO MINIMIZE THE RISK OF PATIENT STRANGULATION, THE PATIENT
INTERFACE CABLE (PIC) MUST BE CAREFULLY PLACED AND SECURED.
DO NOT EXPORT BISx HISTORY DATA WHILE A CASE IS IN PROGRESS.
SHOCK HAZARD: DO NOT ATTEMPT TO DISCONNECT THE POWER
CORD WITH WET HANDS. MAKE CERTAIN THAT YOUR HANDS ARE
CLEAN AND DRY BEFORE TOUCHING THE POWER CORD.
UNIVERSAL PRECAUTIONS SHALL BE OBSERVED TO PREVENT
CONTACT WITH BLOOD OR OTHER POTENTIALLY INFECTIOUS
MATERIALS. PLACE CONTAMINATED MATERIALS IN REGULATED
WASTE CONTAINER.
DO NOT MIX DISINFECTING SOLUTIONS (e.g., BLEACH AND AMMONIA),
AS HAZARDOUS GASES MAY RESULT.
ELECTRICAL SHOCK HAZARD: DO NOT REMOVE MONITOR COVERS
DURING OPERATION OR WHILE POWER IS CONNECTED TO MONITOR.
ELECTRICAL SHOCK HAZARD: THE MANUFACTURER'S INSPECTION OF
THIS APPARATUS VERIFIED THAT THE GROUND LEAKAGE CURRENT
AND THE PATIENT SAFETY CURRENT WERE LESS THAN THE
SPECIFIED LIMITS ESTABLISHED BY THE APPLICABLE SAFETY
STANDARDS. AS A MATTER OF SAFE PRACTICE, THE INSTITUTION
SHOULD CONDUCT PERIODIC TESTS TO VERIFY THESE CURRENTS.
WHENEVER AN EVENT SUCH AS SPILLAGE OF BLOOD OR SOLUTIONS
OCCURS, RE-TEST LEAKAGE CURRENT BEFORE FURTHER USE.
LEAKAGE CURRENT MUST BE CHECKED WHENEVER INSTRUMENT
CASE IS OPENED BY A QUALIFIED BIOMEDICAL ENGINEERING
TECHNICIAN.
POWER SUPPLY IS INTERNALLY FUSED. REPLACE POWER SUPPLY
ONLY WITH ASPECT MEDICAL SYSTEMS BIS VIEW POWER SUPPLY.
1.2 Cautions
Read this entire manual carefully before using the monitor in a clinical setting.
Do not autoclave the BISx or Monitor. Autoclaving will seriously damage both
components.
Do not block ventilation inlet holes on the underside of monitor.
Do not open the BISx for any reason. The seal to prevent liquids from entering the
BISx may be damaged if opened.

SECTION 1 SAFETY PRECAUTIONS
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1-4
The BIS VIEW system has been designed to operate with a BIS sensor. The sensor is
a silver/silver chloride electrode array that utilizes Aspect's patented Zipprep
technology and uses a proprietary connector. Use of other electrodes is not
recommended.
Do not remove drive while export is in progress.
Continuous impedance checking may need to be disabled if the 1 nanoampere 128
Hz impedance check signal interferes with other equipment (e.g., evoked potential
monitors).
Check the battery periodically by operating a BIS VIEW monitor that has been
disconnected from the wall socket and that has been charged to full capacity (at least
6 hours of charge time). After long periods of storage (e.g., more than 1 month) it
may be necessary to cycle (charge, then discharge) the battery a few times to get full
charge capacity. If the BIS VIEW monitor fails to operate reliably from the battery
for approximately 45 minutes, battery replacement is required.
The BIS VIEW monitor contains an internal Lithium ion battery. The battery must
be removed by a qualified service technician and disposed of or recycled in
accordance with the national laws of the country. Contact Aspect Medical Systems,
Inc. or the local distributor for a replacement battery: Aspect part number 186-0208.
Avoid liquid ingress to the Patient Interface Cable. Contact of fluids with the PIC
sensor connector can interfere with PIC performance.
The BIS VIEW system complies with the electromagnetic compatibility
requirements of IEC 60601-1-2. Operation of this device may affect or be affected by
other equipment in the vicinity due to electromagnetic interference (EMI). If this
occurs:
Increase separation between devices
Re-orient device cabling
Plug devices into separate outlet circuit branches
Refer to Section 8.2 “Electromagnetic Compatibility Specifications.”
Do not disconnect the BISx during the software update.
When connecting or disconnecting BISx, take care not to touch the exposed contacts
of either connector. Damage due to electrostatic discharge may result.
Using accessories other than those specified may result in increased electromagnetic
emissions or decreased electromagnetic immunity of the BIS VIEW Monitoring
System.

SECTION 1 SAFETY PRECAUTIONS
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1-5
The BIS VIEW Monitor should not be used adjacent to or stacked with other
equipment. If adjacent or stacked use is necessary, the BIS VIEW Monitor should be
observed to verify normal operation in the configuration in which it will be used.
To completely remove power from the unit: put the monitor in standby mode,
disconnect power cord from the power cord receptacle of the monitor, then remove
the battery from the monitor.
The BIS VIEW monitor may not power up entirely if battery power is low. If that
should occur, connect unit to wall power and press the Reset button. (Refer to
Section 6.4 “Using the Reset Button”).
Service or repairs must be performed only by qualified biomedical technicians.
Important:
The BIS VIEW systems comply with the European Medical Device Directive (MDD)
and applicable regulatory requirements of the country distributed to and carry the
CEXXXX Marking. Declarations of Conformity provided upon request where
appropriate.

SECTION 1 SAFETY PRECAUTIONS
______________________________________________________________________
1-6
1.3 Key to Symbols
Caution, Consult
Accompanying Documents
Data I/O, RS-232 Serial Port
USB-A
Universal Serial Bus:
Type A USB-B Universal Serial Bus: Type B
Caution: Hot Surface Storage Temperature Limits
Type BF Equipment
Type BF Equipment
Defibrillator-proof
Alternating Current (A/C)
Direct Current (D/C)
Battery Location
Reset Button
Monitor Power ON
Monitor Power OFF or Standby
Mode
Do not Reuse
Use by
YYYY-MM-DD or
YYYY-MM
Latex-free product PVC-free product
Recyclable
Crossed out wheelie bin indicates
separate treatment from general
waste at end of life
Manufacturer
Date of Manufacture
EC REP
Authorized Representative
in the European
Community Catalog Number
Batch Code Serial Number
Conformité Européenne
(CE) Marking of
Conformity to European
Medical Device Directive.
CEXXXX represents the
Notified Body number
Classified by Underwriters
Laboratories Inc.with respect
to electric shock, fire and
mechanical hazards only, in
accordance with
UL 60601-1 and IEC60601-2-26
Recognized under the
Component Recognition
Program of Underwriters
Laboratories Inc.
Packaging Labeling:
Fragile, Do Not Get Wet, and
This Side Up
Figure 1 - Symbol Key (page 1 of 2)

SECTION 1 SAFETY PRECAUTIONS
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1-7
Operating on Battery
No Battery is Installed in Monitor
Ringing Bell Icon – High Priority Alarm Condition exists. The alarm
sounds unless the alarm key has been pressed to silence it.
Yellow Bell with dotted ‘X’ - Alarms Paused
Red Bell with ‘X’ - Alarms Silenced
Figure 1 - Symbol Key (page 2 of 2)

SECTION 1 SAFETY PRECAUTIONS
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1-8