Accriva avoximeter 1000E User manual

Operator’s Manual

ii
Manufacturing Company Location
Accriva Diagnostics, Inc.
6260 Sequence Drive, San Diego, CA USA
Phone: [phone]
Fax: [phone]
web site: www.accriva.com
Copyright and Trademarks
Copyright© 2015 Accriva Diagnostics, Inc. All rights reserved. This material may not be
reproduced or copied, in whole or in part, without the written permission of Accriva.
Accriva and AVOXimeter are registered trademarks of Accriva Diagnostics, Inc. in the United
States and other jurisdictions.
U.S. Patents. 5,430,542 and 6,262,798. Euro/UK Patent 0663070. Other patents pending.
Technical Support
Contact Technical Support at [phone] or [phone], or by e-mail at
[e-mail].

iii
Table of Contents
1INTRODUCTION......................................................................................................1
Intended Use of the AVOXimeter 1000E..................................................................1
Summary and Explanation of the Test......................................................................1
Hemodynamic Calculations..........................................................................2
Saturation Step-Ups.....................................................................................3
Operating Precautions and Warnings.......................................................................5
Limitations................................................................................................................5
2DESCRIPTION.........................................................................................................6
Front Panel...............................................................................................................6
Keypad.....................................................................................................................7
Menus .....................................................................................................................8
Test Cuvettes...........................................................................................................9
Connections...........................................................................................................10
Automatic Standby and Shutdown..........................................................................10
Instrument Lockouts...............................................................................................10
Instrument Specifications .......................................................................................11
Reportable Range......................................................................................11
Accuracy....................................................................................................11
Precision ....................................................................................................11
Interference................................................................................................11
Calibration..............................................................................................................12
3GETTING STARTED .............................................................................................13
Unpacking and Inspection......................................................................................13
Materials Provided......................................................................................13
Materials Required But Not Provided..........................................................13
Optional Materials ......................................................................................14
Charging the Batteries............................................................................................14
Setting Up the Instrument.......................................................................................15
Setting Display Backlighting .......................................................................15
Specifying Units for Total Hemoglobin (THb)..............................................15
Changing the Date and Time......................................................................16
Setting the Standby Delay..........................................................................17
Specifying Mandatory Entry of User ID and/or Patient ID .......................................18
Changing the QA User ID...........................................................................21
Requiring Entry of a Patient ID...................................................................22
Specifying Oximetry Site Prompts..........................................................................23
Specifying Use of Oximetry Sites ...............................................................24
Entering a Different Value for Hüfner’s Number..........................................25

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4OPERATION.........................................................................................................27
Startup ...................................................................................................................27
Entering a User ID (Optional)..................................................................................27
Entering a Patient ID (Optional)..............................................................................27
Sample Collection and Preparation.........................................................................28
Sample Collection.......................................................................................28
Sample Preparation....................................................................................28
Running a Test.......................................................................................................29
Using the Printer.....................................................................................................30
Printing the Current Test Results................................................................30
Specifying Automatic Printing of Results.....................................................30
Changing the Serial Port Baud Rate and Parity..........................................30
Data Management..................................................................................................31
Printing all Stored Data...............................................................................31
Printing All Optical Quality Control Data......................................................31
Reviewing and/or Printing the Last Sample ................................................32
Locating, Reviewing, and/or Printing any Sample.......................................32
Aborting Printing of Results ........................................................................33
Purging all Test Records.............................................................................33
Quality Control........................................................................................................34
Performing Optical Quality Control..............................................................34
Running Liquid Controls..............................................................................35
Entering Liquid Control Lot Numbers..........................................................36
Tagging a Liquid Control Test with a Lot Number.......................................37
Enabling QC Lockout..................................................................................38
Calibration ..............................................................................................................39
Cuvette Pathlength.....................................................................................39
Re-Calibration.............................................................................................39
Shutdown ...............................................................................................................40
Hemodynamic Calculations ....................................................................................41
Entering the Patient Age, Height, Weight, and Sex.....................................41
Oxygen Uptake Rate ..................................................................................43
Body Surface Area......................................................................................44
Saturation Step-Ups ...................................................................................45
Flow Calculations........................................................................................46
Systemic and Pulmonary Resistances........................................................50
Stroke Volume and Stroke Index ................................................................52
Printing Hemodynamic Values....................................................................54
Troubleshooting......................................................................................................55
5MAINTENANCE.................................................................................................... 59
Cleaning the Optical Detector.................................................................................59
Replacing the Battery .............................................................................................63

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6QUALITY CONTROL LOGS..................................................................................65
7WARRANTY ..........................................................................................................68
Certification, Warranty and Service Warranty, and Service ....................................68
8SAFETY STANDARDS..........................................................................................70
Guidance and Manufacturer’s Declaration – Electromagnetic Emissions....................70
Guidance and Manufacturer’s Declaration – Electromagnetic Immunity.................72
INDEX ..........................................................................................................73

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Important Labels and Symbols
Before using the AVOXimeter 1000E, it is essential that the contents of this Operator’s Manual,
any labels on the instrument or its packaging, and instructions accompanying AVOXimeter
1000E cuvettes are read and understood by the operator. These materials make reference to
additional symbols that are explained below:
Product Conforms to Directive 98/79/EC, 27 October 1998 on In-Vitro Diagnostic
Medical Devices
Expiration Date of Cuvettes
Serial Number of Instrument
Lot Number of Cuvettes
Catalogue Number of Devices
Do Not Reuse– Single Use Only
Upper and Lower Temperature Limitations (For Storage or Use)
For in vitro Diagnostic Use
Attention - Read Accompanying Documentation or Instructions
Consult Instructions for Use
Input Port for DC Power Cord from AC/DC Power Module - Polarity, VDC
and A Input
Serial Output Port for Data Transfer – RS232C
Temperature Probe Input (AVOXimeter 4000 Only)
Name and Address of Manufacturer
Warning - Biohazard
Medical Equipment per Annex 1A, Item 8 Directive 2002/96/EC For Electronic
Equipment Waste – Contact Technical Support @ 1-800-579-2255

AVOXimeter 1000E Operator’s Manual
1
1 Introduction
Intended Use of the AVOXimeter 1000E
The AVOXimeter 1000E is a battery-operated bedside whole blood oximeter that performs
individual point-of-care measurements of oxyhemoglobin saturation (%Hb02) and total
hemoglobin concentration [THb] on lithium/sodium or heparin or EDTA anticoagulated whole
blood samples. Oxygen content [02] of the blood sample is automatically calculated from the
%Hb02and THb measurements.
No sample preparation is required, and analysis is quickly accomplished by injecting the sample
into a disposable cuvette and inserting the cuvette into the instrument. The AVOXimeter 1000E
then illuminates the sample with multiple wavelengths, records the optical density of the sample
at each of the wavelengths, and computes the results. In less than 10 seconds, the
oxyhemoglobin fraction, the total hemoglobin concentration, and the oxygen content of the
sample are shown in appropriate units on the liquid-crystal display on the front panel.
Data management capabilities are included with the instrument. These capabilities include a
combined storage of up to 500 patient, and/or QC results, designation of quality control levels and
lot numbers, tagging of test results with date, time, Patient ID and/or Operator ID, entry of
oximetry site and subsite, and printing of results.
The instrument also can calculate ten hemodynamic variables (such as body surface area,
estimated oxygen consumption rate, and cardiac output using the Fick principle) from data that
are entered by the operator. It can also calculate differences in oxygen saturation between
adjacent anatomical sites from which blood samples were taken (saturation step-ups), to aid in
diagnosing intracardiac and great vessel shunts.
In vitro diagnostic use, For Professional Use, Rx Only
Summary and Explanation of the Test
The AVOXimeter 1000E measures whole blood %Hb02 and [THb] using disposable single-use
cuvettes. The operator inserts a whole blood sample into a cuvette, the cuvette is inserted into
the test chamber on the instrument, and the results are displayed. The results will remain on the
display while the cuvette remains in the instrument.
The result can be automatically printed along with the time and date the test was run, the Patient
ID, Operator ID, and other information entered. The result is also saved in an internal database,
which has the capability to store up to 500 results.
Individual AVOXimeter 1000E instruments can be customized so that optical quality control tests
must be performed whenever a specified period of time has elapsed. In addition, up to three liquid
control lot numbers for each level of liquid QC can be stored in the AVOXimeter 1000E and can
be tagged to the stored or printed liquid QC records. The instruments can also be configured so
that only authorized operators can operate the system and that patient IDs are required for each
test run.
The AVOXimeter 1000E measures oxygenated hemoglobin [HbO2], deoxyhemoglobin [HHb],
methemoglobin [MetHb], and carboxyhemoglobin [COHb] directly, using novel optics and multiple

AVOXimeter 1000E Operator’s Manual
2
wavelengths. This reduces interference from dyshemoglobins and other interfering substances
such as fetal hemoglobin and bilirubin and minimizes the effects of hemolysis.
The measured values are used to calculate total hemoglobin [THb] and percent oxyhemoglobin
saturation [%Hb02] of the sample, using the fractional method described below:
[THb] = [HbO2] + [HHb] + [MetHb] + [COHb]
[%HbO2] =
[HbO
2
] x 100
[HbO2] + [HHb] + [MetHb] + [COHb]
Oxygen content [O2] of the sample is then calculated:
[O2] =
1.39 x [THb] x [%HbO
2
]
100
where 1.39 is the ml of oxygen assumed to be carried by one gram of oxygenated hemoglobin
(Hϋfner’s Number). Depending on your facility protocols, the Hϋfner’s Number stored in the
AVOXimeter 1000E can be set at any value in the range of 1.30 to 1.39 (see page 25).
Note: Below is a legend for oxygen saturation terminology used throughout this
document:
Abbreviation Term Units Displayed
THb Total Hemoglobin g/dl
HbO2Oxyhemoglobin g/dl
MetHb Methemoglobin g/dl
COHb Carboxyhemoglobin g/dl
HHb Reduced Hemoglobin g/dl
%HbO2Percent Oxyhemoglobin Saturation
(Fractional Oxygen Saturation) n/a
[O2]Oxygen Content ml/dl
Hemodynamic Calculations
Based on the results, hemodynamic calculations are performed as described below.
Cardiac Output
ml/min =
Oxygen Uptake
[O2] arterial -[O2] venous
Note: Oxygen uptake rate can either be measured from expired gases, or it can be
estimated from the patient’s age, height, weight, and sex (see below).

AVOXimeter 1000E Operator’s Manual
3
Body Surface Area
m2= 0.007185 (Weight kg)0.425 (Height cm)0.725
Oxygen Uptakemales
ml/min = 157.3 BSA + 10– (10.5 * age + 4.8)
Oxygen Uptakefemales
ml/min = 157.3 x BSA –(10.5 * age + 4.8)
Cardiac Index
L/min/ m2 =
Cardiac Output
BSA
Stroke Volume
ml/beat =
Cardiac Output
Heart rate
Stroke Index
ml/beat/m2=
Stroke Volume
BSA
Pulmonary
Blood Flow
ml/min
=
Oxygen Uptake
[02] Pulmonary Arterial – [02] pulmonary venous
Total Systemic
Resistance
mmHg/ml/min
= Arterial Pressure – Right Atrial Pressure
Cardiac Output
Total Pulmonary
Resistance
mmHg/ml/min
= Pulmonary Arterial Pressure –Left Atrial Pressure
Cardiac Output
Pulmonary to
Systemic Flow Ratio = Pulmonary Flow
Systemic Flow
Pulmonary to
Systemic Flow Ratio = %Hb02Arterial – %Hb02Venous
%Hb02Pulmonary Venous – %Hb02Pulmonary Arterial
Saturation Step-Ups
Saturation step-ups are the differences in oxyhemoglobin saturation [%Hb02] between adjacent
anatomical sites. These values are used as an aid in diagnosing intracardiac and great vessel
shunts. The AVOXimeter 1000E calculates saturation step-ups between the following anatomical
sites:
●Right atrium and superior vena cava
●Right ventricle and right atrium
●Pulmonary artery and right ventricle
●Pulmonary vein and left atrium
●Left atrium and left ventricle

AVOXimeter 1000E Operator’s Manual
4
●Left ventricle and aorta
When calculating saturation step-ups, the AVOXimeter 1000E searches the database for all
results for each main oximetry site for that patient (sub-sites are ignored), averages the results for
each site, and then calculates the saturation step-ups from the average result for each main site.
This information can then be printed from the AVOXimeter 1000E.
Note: Use of average readings rather than individual values improves the precision of saturation
step-up calculations.

AVOXimeter 1000E Operator’s Manual
5
Operating Precautions and Warnings
●For in vitro Diagnostic use.
●Do not allow blood, water, or other liquids to enter the instrument.
●The AVOXimeter 1000E instrument is designed for use only with AVOXimeter 1000E
cuvettes.
●Do not re-use test cuvettes.
●Always keep cuvettes in sealed bag with desiccant.
●When filling cuvette, do not use excessive pressure on the syringe or cause the
vent patch to bulge outward by overfilling the cuvette.
●For proper calibration and calibration verification, use only the controls recommended
in this manual. Controls from other sources may yield erroneous results.
●The AVOXimeter 1000E instrument is designed to be used for testing in a
stationary position. DO NOT perform testing while carrying or holding the
instrument.
●In order to charge the AVOXimeter 1000E instrument, the AC power cord should
be plugged into an electrical service outlet and the AC/DC power module while the
DC power cord from the AC/DC power module is plugged into the DC port in the
back of the instrument.
●DO NOT expose the AVOXimeter 1000E instrument to extreme temperature
(above 35°C, 95°F). Such exposure could affect the performance of any type of
electronic instrumentation.
●DO NOT drop the AVOXimeter 1000E instrument, and do not use the results if the
instrument is dropped during a test.
●Only properly qualified personnel should attempt to open and perform work on the
AVOXimeter 1000E instrument as identified in this manual.
●DO NOT remove the AC/DC power module from the AVOXimeter 1000E
instrument by pulling on the cord.
●The use of accessory equipment (e.g., printers, etc.) not identified in this manual
either in the patient vicinity, or that does not comply with either the equivalent
safety requirements of this equipment or IEC/EN 61010-1:2010 or IEC/EN 61010-
2-101:2002, may lead to a reduced level of safety with the resulting system.
Any items exposed to human blood, plasma or serum must be handled cautiously as a
biohazardous material in accordance with laboratory safety practices and federal and
local regulations. Federal, state and local laws and regulations require that hazardous
waste be disposed of in a specific manner. Waste material from the AVOXimeter
1000E which may be classified as biohazardous include used cuvettes. It is important
that steps be taken to dispose of these materials in accordance with the prevailing
regulations in your location.
Limitations
Do not disturb the instrument while a test is in progress. As with all diagnostic tests,
AVOXimeter 1000E test results should be scrutinized in light of a specific patient’s condition and
therapy. Any results exhibiting inconsistency with the patient’s clinical status should be repeated
or supplemented with additional test data.

AVOXimeter 1000E Operator’s Manual
6
2 Description
The AVOXimeter 1000E is a Point of Care device for use at the bedside. It contains a test
chamber which performs all operations to measure the oxyhemoglobin saturation (%Hb02), total
hemoglobin (THb), and oxygen content (O2) of a whole blood sample after the operator inserts a
test cuvette containing the sample into the test chamber.
Each AVOXimeter 1000E is calibrated at the factory. The AVOXimeter 1000E can be operated
either from its internal batteries or from the AC adapter. The batteries are charged when the AC
Adapter is connected.
Figure 1. AVOXimeter 1000E Oximeter
Front Panel
The front panel (Figure 2) contains the test chamber, a keypad with the key, action and
menu keys, number keys, and a display panel. Operator instructions are shown on the display
panel, and the operator enters commands and information using the keypad.
When the test is completed, the results are shown on the display panel and stored in system
memory.
The display panel is illuminated to enhance visibility in low light conditions. The illumination can
be adjusted (or turned off) to conserve power during battery operation.

AVOXimeter 1000E Operator’s Manual
7
Figure 2. Front Panel
Keypad
The routine analysis of blood samples does not require the use of menus or the numeric keypad.
However, these enable the user to take advantage of many useful features.
The purpose of each key is summarized below:
Key
Purpose
Switch the instrument on. Select a command.
Display a menu of commands for calibration, printing, stored
data, and shutdown.
Display a menu of commands for entering hemodynamic
variables, entering device settings, entering the time and date,
viewing battery status, and managing data.
Print the results that are displayed.
and Respond to questions that are displayed.
Backspace over a numerical entry (such as a QC lot number) so
that it can be corrected.
Return to the previous menu.
to
Enter characters for Operator IDs or Patient IDs. Enter a
character for selection of a command.

AVOXimeter 1000E Operator’s Manual
8
Menus
The principal menus, their commands, and the procedure to access each menu are summarized
below:
Note:
Press the button at any time to return to the previous menu.
Menu
Commands
Access
Main Menu
Press the key when a test is not
running or another menu is not active.
Calibration
Submenu
Press followed by while the
main menu is displayed.
Printer Mode
Submenu
Press followed by while the
main menu is displayed.
Stored Data
Submenu
Press followed by while the
main menu is displayed.
Data Menu
Press the key when a test is not
running or another menu is not active.
Hemodynamics
Submenu (Page 1)
Press followed by while the
data menu is displayed to display
Page 1.
Press + or - while the hemodynamics
submenu is displayed to toggle
between Page 1 and Page 2.
Hemodynamics
Submenu (Page 2)
Device Settings
Submenu
Press followed by while the
data menu is displayed.
Time, Date, and
Battery Submenu
Press followed by while the
data menu is displayed.
Data Management
Submenu
Press followed by while the
data menu is displayed.

AVOXimeter 1000E Operator’s Manual
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Test Cuvettes
Tests are performed with single-use disposable test cuvettes (Figure 3). Each test cuvette
contains a finger grip, filling port, optical window, and a vent patch.
Figure 3. Test Cuvette
A whole blood sample is inserted into a test cuvette by connecting a luer lock syringe, slip
syringe or capillary tube containing the whole blood sample to the filling port and then gently
pressing the syringe plunger to dispense approximately 50 µL of whole blood into the test
cuvette. Air escapes from the vent patch at the end of the test cuvette while the whole blood
sample is being inserted. The test cuvette (with the syringe still attached) is then inserted into the
test chamber of the instrument (see page 28 for details).
Note: Be sure to handle the cuvette either by the edges or by the finger grip. Refer to the
package insert accompanying the test cuvettes for storage and handling instructions.
●Remove any blood or debris from the exterior of the test cuvette before
inserting it into the test chamber.
●After filling the cuvette with blood, inspect the vent patches to ensure they
are not bulging out. If a vent patch protrudes, discard the cuvette. Do not
insert a cuvette with a protruding vent patch into the test chamber.
BIOHAZARD WARNING: Any items exposed to human blood, plasma or serum
must be handled cautiously as a biohazardous material in accordance with
laboratory safety practices and federal and local regulations. Federal, state and
local laws and regulations require that hazardous waste be disposed of in a
specific manner. Waste material from the AVOXimeter 1000E which may be
classified as biohazardous include used cuvettes. It is important that steps be
taken to dispose of these materials in accordance with the prevailing regulations
in your location.
Filling Port
Light Path
Vent Patch
Optical
Window
Finger Grip

AVOXimeter 1000E Operator’s Manual
10
Connections
Connections to the AC Adapter and an optional printer (or a computer) are made at the rear of
the instrument (Figure 4).
Use only the AC Adapter provided with the instrument.
Figure 4. Power and Printer Connections
Automatic Standby and Shutdown
The AVOXimeter 1000E enters a low-power standby mode after the instrument has been idle for
a specified period of time (the standby delay). The instrument is factory preset for a standby
delay time of 60 minutes, but a time of 10 to 180 minutes can be specified (see page 17). To
resume normal operation when the instrument is in standby, press and hold down any key for one
second.
Note: The AVOXimeter 1000E also enters standby if the battery charge becomes critically
low.
The AVOXimeter 1000E shuts down after it has been in standby for 4 hours.
Instrument Lockouts
The instrument can be configured to allow use only by authorized operators and/or to allow use
only if Optical Quality Control (OQC) has been performed.
Printer or Computer
AC Adapter
Serial No.
Label

AVOXimeter 1000E Operator’s Manual
11
Instrument Specifications
Size
20.3 cm (8.0 in) x 25.4 cm (10.0 in) x 9.5 cm (3.8 in)
Weight
1.8 kg (4 lbs)
Operating Temperature
Room temperature (15°C to 30°C, 59°F to 86°F)
Battery Type
Nickel Cadmium (NiCad)
Operating Time On Battery
Approximately 8 hours (constant run at medium brightness).
Tests may also be run while the AVOXimeter 1000E is plugged
into the AC/DC power module.
Anticipated Battery Life Approximately 500 charge / discharge cycles
Power Supply/Chargers Input: 100 / 240 VAC, 50 / 60 Hz
Output: 12 VDC, 830 mA
Serial Data Port RS232C
Sample Type Whole blood
Sample Volume 50 µL
Analysis Time 7 to 10 seconds per sample
Analysis Wavelengths 5
Reportable Range
%HbO
2
0 to 100%
THb
4 to 25 g/dL
[O
2
Content]
0 to 35 mL O
2
/dL
Accuracy
%HbO
2
±1 %HbO
2
THb (>10 g/dL)
±0.45 g/dL
THb (<10 g/dL)
±0.35 g/dL
Precision
%HbO
2
0.5 %HbO
2
THb
0.3 g/dL
Interference
Bilirubin
None
Hemolysis
None
Carboxyhemoglobin
None
Methemoglobin
< 1% %HbO
2
, < 0.2 g/dL THb
(THb = 16 g/dL, MetHb < 10%, 7.1 < pH < 7.8)
Fetal Hemoglobin
< 1% %HbO
2
, < 0.45 g/dL THb
(THb = 16 g/dL, HbF < 100%)

AVOXimeter 1000E Operator’s Manual
12
Calibration
The AVOXimeter 1000E is factory-calibrated and employs highly stable state-of-the-art light
sources. Factory tests indicate that, when used in accordance with this Operator’s Manual and
other instructions, the AVOXimeter 1000E is capable of maintaining its calibration for at least two
years.
Should recalibration be required contact a Technical Support representative for assistance (see
page 39).
Proper calibration also requires entry of the correct cuvette pathlength by the user (see page 39)
and use of a customary value for Hüfner’s number (see page 25).
CAUTION:If quality control results are not acceptable, erroneous results are
encountered, or error messages are displayed, the most likely cause is contamination
of the optical detector by blood or debris, which cannot be resolved by re-calibration.
Consult the Troubleshooting section for additional information.

AVOXimeter 1000E Operator’s Manual
13
3 Getting Started
Unpacking and Inspection
Note: Inspect each component for damage when unpacking. If damage is observed, contact
your shipping representative immediately.
1. Remove any protective packaging that may be present around the instrument.
2. Examine the packaging material to be sure that the AC adapter, connecting
cables, or other components have been removed. The materials that are provided
are listed below.
Note: Do not discard the packaging material.
Materials Provided
Item
Quantity
AVOXimeter 1000E Instrument 1
AC adapter (Part No. AP5300X)
Power Cord (Part No. HR1235)
1
1
Operator’s Manual 1
Optical Quality Control Filters (Part No. E-QCYO) 2
Note: An AC power cord is supplied only for the 110VAC version of the US/Canada/Japan
instrument. For all others, the customer must obtain a 3 conductor AC power cord
that is compatible with an IEC 320 connection at the power supply AC inlet and any
other local requirements.
Materials Required But Not Provided
Item
Quantity
AVOXimeter 1000E Cuvettes (Part No. C100B) As Needed
Liquid Controls (RNA)
See page 34 for additional information. As Needed

AVOXimeter 1000E Operator’s Manual
14
Optional Materials
Item
Quantity
Dymo Printer
•110 V
•220 V
1
Printer Paper As Needed
Charging the Batteries
Charge the batteries before the system is used for the first time.
1. Plug the AC adapter into an electrical service outlet.
2. Connect the AC adapter cord to the power connector on the rear of the instrument.
3. Allow the battery to charge for at least eight hours.
Note: The AC Adapter can remain connected all the time.
4. To ensure adequate charge, leave the instrument connected to the AC adapter for
a minimum of eight hours. This eliminates the risk of the instrument powering
down during a test.
Fully charged batteries will allow the AVOXimeter 1000E to analyze blood samples continuously
for up to 8 hours when the display is set at medium brightness.
Battery power can be conserved by:
●Reducing (or turning off) display backlighting (see page 15).
●Reducing the standby delay (see page 17).
Note: The batteries can suffer from a “memory effect” if they are charged before being completely
discharged. For optimal battery performance, discharge completely when possible before
charging them. The message “Battery Critical – Connect Charger” will be displayed when
the battery is completely discharged.
The message “Battery Critical – Connect Charger”is displayed and the instrument reverts to
the standby mode if the battery power is insufficient to complete the test. The AC Adapter must
be used for additional tests until the battery is recharged.
Checking the Battery:
1. Display the “Time, Date, and Battery” menu (a submenu of , see page 8).
2. Press followed by to display the battery status: