AEMC CL601 User manual

ENGLISH User Manual
SIMPLE LOGGER®II
TRMS CLAMP-ON MODEL
CL601
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Statement of Compliance
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
certifies that this instrument has been calibrated
using standards and instruments traceable to
international standards.
We guarantee that at the time of shipping your
instrument has met its published specifications.
An NIST traceable certificate may be
requested at the time of purchase, or obtained
by returning the instrument to our repair and
calibration facility, for a nominal charge.
The recommended calibration interval for this
instrument is 12 months and begins on the date of
receipt by the customer.
Serial #: ________________________________
Catalog #: 2126.01
Model #: CL601
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
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Table of Contents
1. INTRODUCTION............................................................................... 3
1.1 International Electrical Symbols................................................3
1.2 DenitionofMeasurementCategories .....................................4
1.3 ReceivingYourShipment..........................................................4
1.4 OrderingInformation.................................................................4
2. PRODUCT FEATURES ...................................................................... 5
2.1 Description................................................................................5
2.2 ControlFeatures .......................................................................6
3. SPECIFICATIONS............................................................................. 8
3.1 Electrical ...................................................................................8
3.2 Mechanical................................................................................9
3.3 Environmental...........................................................................9
3.4 Safety........................................................................................9
4. OPERATION .................................................................................. 10
4.1 LEDControlOperationandStatusFunction ..........................10
4.2 ConnectingtheSimpleLogger®IItoaComputer ...................12
4.3 TurningtheUnitOn.................................................................12
4.4 RecordingData.......................................................................13
4.4.1 StartingaRecordingSession .....................................13
4.4.2 StoppingaRecordingSession ...................................13
4.5 DownloadingRecordedData..................................................13
4.6 ClearingAlarmIndication........................................................14
4.7 ErasingDatafromMemory.....................................................14
4.8 DataStorage...........................................................................15
4.8.1 TrendMeasurements..................................................15
4.9 NormalOperation ...................................................................15
4.10ResetSwitchOperation ..........................................................18
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5. MAINTENANCE ............................................................................. 19
5.1 ChangingtheBatteries ...........................................................19
APPENDIX A: TROUBLESHOOTING...................................................... 20
APPENDIX B: GLOSSARY.................................................................... 21
Limited Warranty ...................................................................................23
WarrantyRepairs...................................................................................23
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Simple Logger®II Model CL601
3
CHAPTER 1
INTRODUCTION
WARNING
Thesesafetywarningsareprovidedtoensurethesafetyofpersonnel
andproperoperationoftheinstrument.
• Readtheinstructionmanualcompletelyandfollowallthesafetyinfor-
mationbeforeattemptingtouseorservicethisinstrument.
• Neverexceedthemaximumworkingvoltageratingsgiven.
• NEVERopenthebackoftheinstrumentwhileconnectedtoanycircuit
orinput.
• Always inspect the instrument accessories and leads prior to use.
Replaceanydefectivepartsimmediatelywithfactoryparts.
1.1 International Electrical Symbols
Signifies that the instrument is protected by double or reinforced insulation.
Indicates a WARNING and that the operator must refer to the user manual for instructions
before operating the instrument. Failure to follow or carry out any instructions preceded
by this symbol in the user manual may result in personnel injury or damage to the
instrument and installations.
Risk of electric shock. The voltage at parts marked with this symbol may be dangerous.
Refers to a type A current sensor. This symbol signifies that application around and
removal from HAZARDOUS LIVE conductors is permitted.
Refers to a type B current sensor. Do not apply around or remove from HAZARDOUS
LIVE conductors without additional protective means (de-energizing the circuit or
wearing protective clothing suitable for high voltage work).
In conformity with WEEE 2002/96/EC
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Simple Logger®II Model CL601
1.2 Definition of Measurement Categories
Cat. I: For measurements on circuits not directly connected to theAC
supplywalloutletsuchasprotectedsecondaries,signallevel,and
limitedenergycircuits
Cat. II: For measurements performed on circuits directly connected to
the electrical distribution system. Examples are measurements
onhouseholdappliancesorportabletools.
Cat. III:For measurements performed in the building installation at the
distributionlevelsuchasonhardwiredequipmentinxedinstalla-
tionandcircuitbreakers.
Cat. IV: For measurements performed at the primary electrical supply
(<1000V) such as on primary overcurrent protection devices,
ripplecontrolunits,ormeters
1.3 Receiving Your Shipment
Uponreceivingyourshipment,makesurethatthecontentsareconsistent
with the packing list. Notify your distributor of any missing items. If the
equipmentappearstobedamaged,leaclaimimmediatelywiththecarrier
and notify your distributor at once, giving a detailed description of any
damage.Savethedamagedpackingcontainertosubstantiateyourclaim.
1.4 Ordering Information
Simple Logger®II Model CL601...................................... Cat. #2126.01
(1-Channel,TRMSClamp-on600AAC)
Includes USB cable, DataView®CD-ROM, 2x1.5V AA-cell alkaline batteries, user manual
and warranty card.
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Simple Logger®II Model CL601
5
CHAPTER 2
PRODUCT FEATURES
2.1 Description
TheSimpleLogger® IIModelCL601 isabattery powered,onechannel
recordingdevicewithanalkalinebatterypack.Linetrackingisperformed
suchthat64samplesoveronelinecyclearetaken.Frequencytrackingis
performedovertherangeof±2Hzaroundthenominallinefrequency(50
or60Hz).Harmonicmeasurementsarecalculatedfromthese64samples
(HarmonicsareonlyavailablefromtheSimpleLogger®II Control Panel
withintheDataView®application).
TheSimpleLogger®IIrecordsTRMS ata rate ofup to eighttimes per
second.Themeasurementprocessisperformednomorethaneighttimes
persecond.TRMScalculationsareperformedonasinglelinecycle.This
meansthattheinput(s)areignoredbetweenmeasurementintervals.
The main advantage of the logger is its ability to perform a variety of
recording tasks with easy and intuitive setup from a computer using
DataView®software.
Analog information on the input is sampled and converted to a digital
signal. This digital signal isprocessed and stored along with scale and
time information. An optically isolated Universal Serial Bus (USB) port
providesforthetransferofdatafromtheinstrument’sinternalmemoryto
thecomputerforanalysis.
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Simple Logger®II Model CL601
2.2 Control Features
1
2
3
Figure 2-1. Key Components and Features
1. Control Button (PRESS)
Thisbuttonmarked“PRESS”selectsthemodeofoperation.Usethis
buttontostartorstoprecordings,erasethememory,clearalarmsand
turntheinstrumentON/OFF.
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Simple Logger®II Model CL601
7
2. Five LED Indicators
The LEDs on the instrument serve two functions: control operation
andstatusfunction.
The control operation (function when holding down the PRESS•
button)isindicatedwithtexttotheleftofeachLED.
Thestatusfunction(functionwhenPRESSisnotbeinghelddown)•
associatedwitheachLEDisindicatedwithtexttotherightofeach
LED.
Referto§4.1fordetaileddescriptionsofeachLED.•
3. Female Type Mini-B USB Connector
4. Reset Button (not shown)
TheRESETbuttonresetstheCPUandislocatedinthebatterycom-
partment To access this button, remove the battery compartment
cover,thenresettheinstrumentbyinsertingasmalltool(suchasa
paperclip)throughtheholeinthecasetoactivateit.
5. Flash Upgrade Switches (not shown)
Thesetwoswitches(accessiblefromunderthebatterycompartment),
alongwiththeRESETbutton(andPCsoftware),areusedtorecover
fromafailedashupgradeprocedure.
WARNING: If the RESET button is pressed when the logger is recording, it will
stop recording and data in memory may be lost.
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Simple Logger®II Model CL601
CHAPTER 3
SPECIFICATIONS
3.1 Electrical
ReferenceConditions:23°C±3°C,30-50%RH,DCor50/60Hz,noACexternalmagneticeld,DC
magneticeld≤40A/m,centeredconductor,batteryvoltage:3V±10%.
MODEL CL601
Channels One
Input Split CT – AC Current
Current Range 0 to 600AAC
Resolution 0.1A
Accuracy
(50/60Hz)
0 to 5A: Unspecified
5 to 50A: ±(1% of Reading +1A)
50 to 400A: ±(1% of Reading +0.5A)
400 to 600A for duration <10min: ±(3% of Reading +1A)
Sample Rate 64 samples/cycle
Storage Rate Programmable from 125mS to 1 day
Storage Modes Start/Stop, FIFO and Extended Recording Mode* (XRM™)
Recording Length 15 minutes to 8 weeks, programmable using DataView®
Memory 240,000 measurement (512KB)
The recorded data is stored in non-volatile memory and will be
retained even if the battery is low or removed.
Communication USB 2.0 optically isolated
Communication Rate 115200 bps
Power Source** 2x1.5V AA-cell alkaline batteries
Battery Life 100 hours to >45 days
(dependent on sample rate and recording length)
*This unique recording mode provides the opportunity to continuously record over long periods
of time by reducing the stored sample resolution of the oldest data and maintaining matching
resolution for the newest data. Each time the memory lls up using XRM™, every other of the
oldest stored samples is discarded making room for newer samples. This process continues
until the recording is manually stopped.
**A memory backup capacitor provides backup power while the batteries are being changed.
This backup capacitor will maintain the instrument for up to 10 seconds without batteries
installed. After 10 seconds the date, time and conguration will need to be reset (no data will
be lost). If the unit is connected to DataView®via a PC, the battery life is 100 hours regardless
of the storage rate.
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Simple Logger®II Model CL601
9
3.2 Mechanical
Dimensions: 9.25x4.0x1.63"(235x102x41mm)
Weight (with battery): 1.07lbs(17.1oz)
Case:PolycarbonateUL94-V0
Maximum Conductor Size: 1conductor-Ø1.65"(42mm)
2conductor-Ø1.00"(25.4mm)each
Jaw Opening:1.65"(42mm)max
Vibration:IEC68-2-6(1.5mm10to55Hz)
Shock: IEC68-2-27(30G)
Drop: IEC68-2-32(1m)
3.3 Environmental
Operating Temperature: 14°to122°F(-10°to50°C)
Storage Temperature: -4°to140°F(-20°to60°C)
Relative Humidity: 0to85%@95°F(35°C),Non-condensing
Altitude: 2000m
3.4 Safety
600VCat.III
300VCat.IV
*All specications are subject to change without notice
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Simple Logger®II Model CL601
CHAPTER 4
OPERATION
4.1 LED Control Operation and Status Function
TheON/OFFstateoftheinstrumentcanbedeterminedbypressingthe
PRESSbuttonforlessthan0.5seconds.IftheinstrumentisON,thestatus
oftheinstrumentwillbeshownbytheLEDs.IftheinstrumentisOFFno
indicationwillbegiven(theLEDswillnotblink).
TheinstrumentisturnedONbypressingthePRESSbuttonuntilallLEDs
light. At this point, the button can be released and the instrument will
remainintheONstate.IfthebuttonisreleasedbeforealltheLEDslight
(inunison),theinstrumentwillremainintheOFFstate.
WhenholdingthePRESSbuttonwhiletheinstrumentisON,eachLED
willlightinsequence.IftheLEDslightinsequence,continuetoholdthe
PRESSbuttonuntilthelastLEDlightsandthengoesOFF.Atthispoint,
releasingthebuttonwillresultinnoactionbeingtaken.Thisprovidesa
mechanismtocancel(orignore)thebuttonpress.
ControloftheinstrumentisperformedbypressingandholdingthePRESS
button(while theinstrument isON) untilthe control LEDcorresponding
to the desired operation lights. Releasing the button when the desired
control LED is illuminated results in the corresponding operation being
performed.
Turning the instrument OFF (pressing and holding the PRESS button
untiltheBlueLEDlights),willnotterminateanactiverecordingorprevent
ascheduledrecording fromstarting.While theinstrumentis OFF, itwill
momentarilyturnONforeachscheduledsampleinterval.Thisoperation
willmakesurethatascheduledrecordingwillbeginandsampleintervals
willbestoredevenwhiletheinstrumentisOFF.
Thecontrol operationofeachLEDisasfollows:
GREEN:• Startsarecording
ORANGE:• Stopsarecording
YELLOW:• Clearsthealarmstate
RED:• Erasesthememory
BLUE:• TurnstheinstrumentOFF
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Simple Logger®II Model CL601
11
The status function ofeachLEDisasfollows:
GREEN STATUS
LED OFF Logger is turned OFF or in Low Power Standby state*
LED Single-blink Logger is in Standby Mode (and not recording)
LED Double-blink Logger is in Record Mode
ORANGE STATUS
LED OFF Logger is not in an Overload condition
LED Single-blink One or more inputs are in an Overload condition
YELLOW STATUS
LED OFF No alarm has been seen on any input
LED Single-blink At least one channel has seen an alarm at least once
LED Double-blink At least one channel is currently in an alarm condition
RED STATUS
LED OFF No data in memory
LED Single-blink Memory is partially filled
LED Double-blink Memory is full
BLUE STATUS
LED OFF Battery voltage is above 1.8 volts
LED Single-blink Battery voltage is below 1.8 volts
*To determine whether the unit is OFF or in SLEEP mode, press the PRESS button for 0.5
seconds. If all LEDs light, the logger is not OFF.
Note: Overload occurs when any input is 10% above its input range. When
the battery voltage goes below 1.7 volts the instrument will shut down (ter-
minating the recording, if it is recording).
IntheSLEEPandOFFmodes,theloggerretainsrecordedinformationfor
transfertoacomputer.
Both of these modes have low power states, which require very little
powerfromthebattery.TheLEDswillnotblinkatthistime.Byusingthese
lowpowerstates,theinstrumentcanbeprogrammedtostartrecordingat
sometimeinthefuturewithoutdrainingthebatteries.
SLEEP mode:• Theinstrumententersthelowpowerstateifthe
buttonisnotpressedforoneminute.Itwillremaininthisstateuntil
eitherthebuttonispressedortheinternalclockreachesthestart
timeforascheduledrecording.
RECORD mode:• The instrument enters the low power state
betweensamplesets.Theslowerthestoragerate,thegreaterthe
portionoftimetheinstrumentisinthelowpowerstate.Thus,the
slowerthestoragerate,thelongertheinstrumentcanrecord.
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Simple Logger®II Model CL601
4.2 Connecting the Simple Logger®II to a Computer
INSTALL DATAVIEW®BEFORE CONNECTING TO THE COMPUTER.
Connect the Simple Logger® II to a USB communication port on your
computer.
Referto the computer manual tolocate the USB porton your
computer.
Theloggercanbeconnectedtothecomputerduringarecordingsession,
however,additionalbatterydrainagewilloccurtosupporttheactiveUSB
connection.
4.3 Turning the Unit On
TurntheinstrumentONbyperformingoneofthefollowing:
• Press and hold the PRESS button for approximately 2 seconds.
ReleasethebuttonafterallveLEDslightupinunison.
TheunitisnowintheSTANDBYmode(GreenLEDsingle-blinks).
NOTE: If all LEDs light instantaneously, the instrument was in SLEEP mode.
Releasing the PRESS button will show the status.
• ConnecttheinstrumenttoaUSBportonyourcomputerandestablish
communicationwith theinstrument usingDataView®.Thelogger will
remainONwhileacommunicationlinkwiththeSLIIControlPanelis
active(providedsufcientbatterypowerisavailableduringthecom-
municationsession).
Theinstrumentcontainsprotectioncircuitrytopreventitfrombeingturned
onwhenthebatteryvoltageisbelow1.7V.
Therearetwothresholdsforthebatteryvoltage:
•
Therstisusedtoindicatelowbattery.
Thelowbatteryindicatorwill
blinkwhenthebatteryvoltagedropsbelow1.8V.
• The second is used to determine when to terminate recording and
turn the unit off.
Theshutdownthresholdiswhenthebatteryvoltage
dropsbelow1.7V.
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4.4 Recording Data
NOTE: The Simple Logger®II is factory configured and may be altered to fit
the users needs (see the Configuring the Simple Logger®II section inside the
DataView®user manual).
Onceacongurationiswrittentotheinstrument,theloggerwillnolonger
needtobeconnectedtoDataView®tostarttheconguredrecording.
Whendataisstoredinthememory,theusermaydownloadtheinforma-
tion onto a hard-disk (see the Downloading Recorded Instrument Data
sectioninsidetheDataView®usermanual).
4.4.1 Starting a Recording Session
NOTE: A new recording cannot be started if the memory is full.
1. Connecttheinstrumenttothemeasurementsource.
2. MakesuretheloggerisinSTANDBYmode(see§4.3).
3. PressandholdthePRESSbutton.WhentheSTART(GREEN)LED
lightsup,releasethebutton.
4. TheGREENLEDdouble-blinkswhentheloggerisrecording.
4.4.2 Stopping a Recording Session
1. PressandholdthePRESSbutton.WhentheSTOP(ORANGE)LED
lightsup,releasethebutton.
2. The GREEN LED will change from a double-blink to a single-blink,
indicatingSTANDBY mode.
The data will be retained, even if the instrument is turned OFF. The
recordeddataisstoredinFlashmemory(maintainedevenintheabsence
ofbatteries).Therecordeddatamaybedownloadedtoacomputer.
4.5 Downloading Recorded Data
Recorded measurements stored in the instrument are transferred to
a computer via the download command in the SLII Control Panel. For
instructionsondownloadingdata,seetheDownloading Recorded Instru-
ment DatasectioninsidetheDataView®manual.
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Simple Logger®II Model CL601
4.6 Clearing Alarm Indication
ClearingalarmscanbeperformedintheSTANDBY or RECORD mode.
1. PressandholdthePRESSbutton.WhentheALARM(YELLOW)LED
lightsup,releasethebutton.TheYELLOWLEDwillblinkatafastrate
foraperiodofveseconds.
2. Press the PRESS button for another 0.5 seconds to complete the
operation.
NOTE: This does not clear any stored alarms, only indications. Stored alarms
can only be cleared when memory is erased (see §4.7).
4.7 Erasing Data from Memory
Erasingdatafromtheinstrument’smemorycanonlybeperformedwhile
intheSTANDBYmode.
Therearetwowaystoerasethememory:
Erasing the Memory using the PRESS Button:
1. Press and hold the PRESS button. When the ERASE (RED) LED
lightsup,releasethebutton.
Thiswillarmtheinstrumentforaneraseoperation(whennotinrecord
mode).Whilearmedtoerasememory,theREDLEDwillblinkatafast
rateforaperiodofveseconds.
2. Press the PRESS button for another 0.5 seconds to complete the
eraseoperation.
NOTE: If the button is not pressed within five seconds of arming, the erase
operation will automatically disarm and memory will be maintained. For this
reason, if you do not intend to erase memory, simply wait until the RED LED
stops blinking at the fast rate.
Erasing the Memory using the SLII Control Panel:
1. Connecttheinstrumenttothecomputer,thenopentheSLII Control
Panel.
2. Select Erase Memoryfromthe InstrumentMenu.
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Simple Logger®II Model CL601
15
3. Adialogboxwillappearaskingtoconrmtheerasureofinstrument
memory. Select YestoconrmorNotocanceltheoperation.
NOTE: Clearing the memory will also clear any alarms stored.
4.8 Data Storage
TheloggercapturesTrendmeasurements.
Input Channel:Sourceforthemeasurementchanneloftheinstrument.
Measurement Channel: Measurement of input. This can be a simple
directmeasurement,theresultofcomplexmathematicaloperationsona
singleormultipleinput,orotherchannels.
Sample Rate: Therateatwhichtheinstrumentmeasuresinputs.
Storage Rate: Therateatwhichchannelmeasurementsarestored.
4.8.1 Trend Measurements
TheloggerstorestheTRMScalculationofeachoftheinputs.Inaddition,
theusercandenethestoragerate, recordingperiodandmeasurement
formatusingtheCongureInstrumentdialogboxintheSLIIControlPanel
software.Trendmeasurementsarestoredatthisxedstoragerate.
4.9 Normal Operation
WhentheinstrumentisturnedON,thefollowingoccurs(providedthereis
sufcientbatteryvoltageandnodataisstoredintheinstrument’smemory):
The GREEN LED single-blinks. (STANDBY mode is active and•
theloggerisnotrecording).
TheREDLEDisOFF,indicatingthereisnodatainmemory.•
The• PRESSbuttonisusedtoStartandStopaRecording
Session.
Ifthe• PRESSbutton is not pressed fora period of oneminute,
theinstrumentwillenterSLEEPmodeandwaitforeitheranother
buttonpressortherecordingstarttimetoarrive(ifarecordingis
scheduled).WhileinSLEEPmode,theLEDswillnotblink.
Abuttonpressof0.5secondswillreturntheunitbacktothenormal•
STANDBYmode.
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Simple Logger®II Model CL601
Event: Recording with Memory Cleared
Whenarecordingstarts,theloggerwillcontinuetorecorduntiloneofthe
followingoccurs:
TheSessioniscomplete.•
TheMemoryisfullandtherecordingmodeisStart/Stop.•
The• PRESS button is pushed until the STOP (ORANGE) LED
lightsupandisreleasedbeforethenextLEDlights.
TheStopRecordingcommandfromtheSLIIControlPanelissent•
totheunit.
Thebatteryvoltagefallsbelow1.7V.•
Event: Recording with a Partial or Full Memory
Ifthe REDLED isdouble-blinking, thememory must becleared before
anyfurtherrecordingcanbeperformed.
IftheREDLEDissingle-blinkingpriortostartingaNewRecordingSes-
sion,thememoryispartiallyfull.
To save, clear or check memory availability, use the Simple Logger®II
ControlPanelsoftware.
TheremaybeinstanceswheretheGREENLEDisalsodouble-blinking
indicatingthattheloggerisstillrecording.Theusercanchoosetostopthe
RecordingSessionanddownloadthesavedsession(s)and/orerasethe
memory.
NOTE: The logger memory cannot be erased while in the Record mode. The
recording must be stopped first.
Event: Memory Filled During Recording Session
IftheloggerisrecordingusingtheStart/Stopmodeandmemoryislled
beforetheRecordingSessionhasnished,thesessionwillend.
Thefollowinghappens:
TheGREENLEDsingle-blinks.•
TheREDLEDdouble-blinks.•
Atthistime:
• Thememorycanbedownloadedanderased.
• Anewrecordingcanbestartedorscheduledoncethememoryis
erased.
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Simple Logger®II Model CL601
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Event: BatteryPowerisInsufcientforaFullRecordingDuration
Ifthebatteryvoltagedropsbelow1.7V,thefollowingwilloccur:
TheRecordingSessionwillterminate.•
TheDatawillbesaved.•
TheGREENandREDLEDwillturnOFF.•
Theloggercontinuestorecorduntilthebatteryvoltagedropsbelow1.7V.
PressingthePRESSbuttonmaynotturntheunitONatall.Thebattery
voltagemayriseslightlyaftertheunitturnsitselfoff.Inthisevent,theunit
mayturnonmomentarilyasaresultofabuttonpress.
The batteries must be replaced before the recorded session(s) can be
downloadedfromtheinstrument.
NOTE: Replacing the batteries while the unit is OFF will not result in the loss
of data memory. The internal backup capacitor will maintain the clock and
memory while the main batteries are being replaced. If the battery level falls
below the usable level or if the batteries have been removed for an extended
period of time, the clock time will be lost. However, the recorded memory will
be maintained since it is stored in Flash memory.
Event: Recording Session has Ended
TheloggerwillbeinSTANDBYmodeifoneofthefollowingoccurs:
Thesessionterminatesduetorecordingendtimebeingreached.•
TherecordinginSTART/STOPmodellsthememory.•
Theuserterminatesthesessionbypressingthe• PRESSbutton
untiltheSTOP(ORANGE)LEDlightsupandreleasingthebutton
beforethenextLEDlights,orissuesaStopRecordingcommand
fromtheSimpleLogger®II Control Panel.
Under these conditions, it is possible to turn the logger ON from the
computertodownloadthedata,ifthebatterieshavesufcientpower.
Thelogger isnow readyfor aNew Session orDownload. Pressingthe
PRESSbuttonuntiltheSTART(GREEN)LEDlightsupandreleasingthe
buttonbeforethenextLEDlights,willstartaNewSessiondependingon
theavailablememory.
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Simple Logger®II Model CL601
4.10 Reset Switch Operation
TheRESET switch is located in the batterycompartment.To access it,
remove the battery compartment cover, then reset the instrument by
insertingasmalltool(suchasapaperclip)throughtheholeinthecase
to activate it.
NOTE: It is recommended to only press the RESET switch when the logger stops
responding to a normal press button control when not connected to DataView®. It
is not recommended to reset the instrument when the logger is recording, down-
loading or being configured.
Iftheloggerisnotrespondingtoabuttonpress,makesuretheunithas
sufcientbatterypower.Ifthebatteryvoltageisbelow1.7V,theunitwillnot
respondtoabuttonpress.Inthiscondition,pressingtheRESETswitch
willnotrestarttheunit.
It is recommended to download any desired session, then erase the
memorybeforestartinganewrecording.
NOTE: The resumption of the logger operation in the above situations assumes
that the RESET switch cleared the fault(s). The logger will not resume normal
operation if the fault condition still exists.
The instrument will try to recover normally. However, under certain condi-
tions, the clock and memory full state may be reset.
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