AEMC Simple Logger II User manual
ENGLISH User Manual
SIMPLE LOGGER®II
TRMS VOLTAGE MODEL
L261
Owner’s Record
The serial number for the Simple Logger®II is located on the back of the
case. Please record this number and purchase date for your records.
SIMPLE LOGGER®II
MODEL #: _______________________________________________
SERIAL #: _______________________________________________
PURCHASE DATE: ________________________________________
DISTRIBUTOR: ___________________________________________
Table of Contents
1. INTRODUCTION............................................................................... 3
1.1 International Electrical Symbols................................................3
1.2 DenitionofMeasurementCategories .....................................4
1.3 Receiving Your Shipment..........................................................4
1.4 Ordering Information.................................................................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 Turning the Unit On.................................................................12
4.4 Recording Data.......................................................................13
4.4.1 Starting a Recording Session .....................................13
4.4.2 Stopping a Recording Session ...................................14
4.5 Downloading Recorded Data..................................................14
4.6 Erasing Data from Memory.....................................................14
4.7 Data Storage...........................................................................15
4.7.1 Trend Measurements..................................................15
4.8 Normal Operation ...................................................................15
4.8.1 Normal Operating Environment ..................................15
4.9 Reset Button Operation ..........................................................18
5. MAINTENANCE ............................................................................. 20
5.1 ChangingtheBatteries ...........................................................20
APPENDIX A: TROUBLESHOOTING ...................................................... 21
APPENDIX B: GLOSSARY.................................................................... 22
RepairandCalibration...........................................................................23
Technical and Sales Assistance ............................................................23
Limited Warranty ...................................................................................24
Warranty Repairs...................................................................................24
Simple Logger®II Model L261
3
CHAPTER 1
INTRODUCTION
WARNING
These safety warnings are provided to ensure the safety of personnel
and proper operation of the instrument.
• Readtheinstructionmanualcompletelyandfollowallthesafetyinfor-
mation before attempting to use or service this instrument.
• Neverexceedthemaximumworkingvoltageratingsgiven.
• NEVERopenthebackoftheinstrumentwhileconnectedtoanycircuit
or input.
• Always inspect the instrument accessories and leads prior to use.
Replace any defective parts immediately with factory parts.
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 L261
1.2 Definition of Measurement Categories
Cat. I: For measurements on circuits not directly connected to theAC
supply wall outlet such as protected secondaries, signal level, and
limited energy circuits
Cat. II: For measurements performed on circuits directly connected to
the electrical distribution system. Examples are measurements
on household appliances or portable tools.
Cat. III:For measurements performed in the building installation at the
distributionlevelsuchasonhardwiredequipmentinxedinstalla-
tion and circuit breakers.
Cat. IV: For measurements performed at the primary electrical supply
(<1000V) such as on primary overcurrent protection devices,
ripple control units, or meters
1.3 Receiving Your Shipment
Upon receiving your shipment, make sure that the contents are consistent
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. Save the damaged packing container to substantiate your claim.
1.4 Ordering Information
Simple Logger®II Model L261 ........................................ Cat. #2126.05
(1-Channel,TRMS600VAC)
Includes USB cable, DataView®CD-ROM, 2x1.5V AA-cell alkaline batteries, 1 set of leads,
one set of alligator clips, user manual and warranty card.
1.4.1 Accessories and Replacement Parts
Lead-Setof2,Color-coded5ftw/color-codedalligatorclips
(Rated600VCatIV,15A) .................................................... Cat. #2140.62
Order Accessories and Replacement Parts Directly Online
Check our Storefront at www.aemc.com/store for availability
Simple Logger®II Model L261
5
CHAPTER 2
PRODUCT FEATURES
2.1 Description
The Simple Logger®II Model L261 is a one channel recording device
powered by an alkaline battery pack. Line tracking is performed such that
64samplesoveronelinecyclearetaken.Frequencytrackingisperformed
over the range of ±2Hz around the nominal line frequency (50 or 60Hz).
Harmonic measurements are calculated from these 64 samples (Harmon-
ics are only available from the Simple Logger®IIControlPanelwithinthe
DataView®application).
The Simple Logger®II records TRMS at a rate of up to eight times per
second. The measurement process is performed no more than eight times
per second. TRMS calculations are performed on a single line cycle. This
means that the input(s) are ignored between measurement intervals.
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 is processed and stored along with scale and
time information. An optically isolated Universal Serial Bus (USB) port
provides for the transfer of data from the instrument’s internal memory
to the computer for analysis. Figure 2-1 shows a block diagram of the
logger.
Figure 2-1. Data Logger Block Diagram
6
Simple Logger®II Model L261
2.2 Control Features
3
1
2
4
Figure 2-2. Key Components and Features
1. 4mm Safety Banana Input Termination - located on the top of
the instrument
2. Five LED Indicators
The LEDs on the instrument serve two functions: control operation
and status function.
The control operation (function when holding down the PRESS•
button)isindicatedwithtexttotheleftofeachLED.
The status function (function when PRESS is not being held down)•
associatedwitheachLEDisindicatedwithtexttotherightofeach
LED.
Refer to § 4.1 for detailed descriptions of each LED.•
Simple Logger®II Model L261
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3. Control Button (PRESS)
This button marked “PRESS” selects the mode of operation. Use this
button to start or stop recordings, erase the memory, clear alarms and
turntheinstrumentON/OFF.
4. Female Type Mini-B USB Connector - located on the bottom of
the instrument
5. Reset Button (not shown)
The RESETbuttonresetstheCPUandislocatedunderthetopcover.
To access this button, remove the battery compartment cover, remove
the four screws holding the two halves of the case together. The reset
switchisthesmallerswitchlocatedontheexposedPCB.
6. Flash Upgrade Switches (not shown)
These two switches (accessible from under the top cover), along with
theRESETbutton(andPCsoftware),areusedtorecoverfromafailed
ashupgradeprocedure.
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 L261
CHAPTER 3
SPECIFICATIONS
3.1 Electrical
ReferenceConditions:23°C±3°C,30-50%RH,DCor50/60Hz,batteryvoltage:3V±10%.
MODEL L261
Channels One
Input Two Recessed Banana Jacks
Voltage Range 0 to 600V
Resolution 0.1V
Accuracy
(50/60Hz)
0 to 5V unspecified
5 to 50V: ±(0.5% of Reading + 1V)
50 to 600V: ±(0.5% of Reading + 0.5V)
Sample Rate 64 samples/cycle
Storage Rate Programmable from 125mS to 12 hrs
Storage Modes Start/Stop, FIFO and Extended Recording Mode* (XRM™)
Recording Length 1 minute 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
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.
Simple Logger®II Model L261
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3.2 Mechanical
Dimensions: 4.94x2.75x1.28”(125x70x32mm)
Weight (with battery): 6.4 oz (181 grams)
Case: UL94-V0
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
10
Simple Logger®II Model L261
CHAPTER 4
OPERATION
4.1 LED Control Operation and Status Function
TheON/OFFstateoftheinstrumentcanbedeterminedbypressingthe
PRESS button for less than 0.5 seconds. If the instrument is ON, the status
oftheinstrumentwillbeshownbytheLEDs.IftheinstrumentisOFFno
indication will be given (the LEDs will not blink).
The instrument is turned ON by pressing the PRESS button until all LEDs
light. At this point, the button can be released and the instrument will
remain in the ON state. If the button is released before all the LEDs light
(inunison),theinstrumentwillremainintheOFFstate.
When holding the PRESS button while the instrument is ON, each LED
will light in sequence. If the LEDs light in sequence, continue to hold the
PRESSbuttonuntilthelastLEDlightsandthengoesOFF.Atthispoint,
releasing the button will result in no action being taken. This provides a
mechanism to cancel (or ignore) the button press.
ControloftheinstrumentisperformedbypressingandholdingthePRESS
button (while the instrument is ON) until the control LED corresponding
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
until the Blue LED lights), will not terminate an active recording or prevent
ascheduledrecordingfromstarting.Whilethe instrumentis OFF,it will
momentarily turn ON for each scheduled sample interval. This operation
will make sure that a scheduled recording will begin and sample intervals
willbestoredevenwhiletheinstrumentisOFF.
The control operation of each LED is as follows:
GREEN:• Starts a recording
ORANGE:• Stops a recording
YELLOW:• Clearsthealarmstate
RED:• Erases the memory
BLUE:• TurnstheinstrumentOFF
Simple Logger®II Model L261
11
The status function of each LED is as follows:
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 Low Power Standby state, press the PRESS
button for 0.5 seconds. If the LED blinks, it 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
(terminating the recording, if it is recording).
IntheSTANDBYandOFFmodes,theloggerretainsrecordedinformation
for transfer to a computer.
Both of these modes have low power states, which require very little
power from the battery. The LEDs will not blink at this time. By using these
low power states, the instrument can be programmed to start recording at
some time in the future without draining the batteries.
STANDBY mode:• The instrument enters the low power state if the
button is not pressed for one minute. It will remain in this state until
either the button is pressed or the internal clock reaches the start
time for a scheduled recording.
RECORD mode:• The instrument enters the low power state
between sample sets. The slower the storage rate, the greater the
portion of time the instrument is in the low power state. Thus, the
slower the storage rate, the longer the instrument can record.
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Simple Logger®II Model L261
4.2 Connecting the Simple Logger®II to a Computer
INSTALL THE DATAVIEW®SOFTWARE BEFORE CONNECTING THE SIMPLE
LOGGER®II TO THE COMPUTER.
Figure4-1showsatypicalhook-up.TheSimpleLogger®II utilizes an opti-
cally isolated USB communication port.
Refer to the computer manual to locate the USB port on your computer.
Figure 4-1
The logger can be connected to the computer during a recording session,
however, additional battery drainage will occur to support the active USB
connection.
4.3 Turning the Unit On
Turn the instrument ON by performing one of the following:
• Press and hold the PRESS button for approximately 2 seconds.
Releasethebutton afterallve LEDslightup inunison.Theunitis
now in the STANDBY mode (Green LED single-blinks).
NOTE: if the LEDs light in sequence the instrument is already ON. In
this case continue to hold the PRESSbuttonuntilallLEDsareOFF.
• ConnecttheinstrumenttoaUSBportonyourcomputerandestablish
communication with the instrument using DataView®. The logger will
remain ON while a communication link with DataView®is active (pro-
vided sufcient battery power is available during the communication
session).
Simple Logger®II Model L261
13
The instrument contains protection circuitry to prevent it from being turned
on when the battery voltage is below 1.7V.
There are two thresholds for the battery voltage:
•
Therstisusedtoindicatelowbattery.
The low battery indicator will
blink when the battery voltage drops below 1.8V.
• The second is used to determine when to terminate recording and
turn the unit off.
The shutdown threshold is when the battery voltage
drops below 1.7V.
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
need to be connected to DataView®tostarttheconguredrecording.
When data is stored in the memory, the user may download the informa-
tion onto a hard-disk (see the Downloading Recorded Instrument Data
section inside the DataView®user manual).
4.4.1 Starting a Recording Session
NOTE: A new recording cannot be started if the memory is full.
1. Connecttheinstrumenttothemeasurementsource.
2. Make sure the logger is in STANDBY mode (see § 4.3).
3. Press and hold the PRESS button. When the START (GREEN) LED
lights up, release the button.
4. Verify that the GREEN LED double-blinks to ensure that the logger is
recording.
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Simple Logger®II Model L261
4.4.2 Stopping a Recording Session
1. Press and hold the PRESS button. When the STOP (ORANGE) LED
lights up, release the button.
2. The GREEN LED will change from a double-blink to a single-blink,
indicating STANDBY mode.
Thedatawillberetained,eveniftheinstrumentisturnedOFF.Therecorded
dataisstoredinFlashmemory,meaningthatitwillbemaintainedeven
in the absence of batteries. The recorded data may be downloaded to a
computer.
4.5 Downloading Recorded Data
Recorded measurements stored in the instrument are transferred to a
database on a hard-disk via the download command in the Simple Logger®
IIControlPanel.Forcompleteinstructionsondownloadingdata,seethe
Downloading Recorded Instrument Data section inside the DataView®
user manual that shipped with the instrument.
4.6 Erasing Data from Memory
Erasing data from the instrument’s memory can only be performed while
in the STANDBY mode.
There are two ways to erase the memory:
Erasing the Memory using the PRESS Button:
1. Press and hold the PRESS button. When the ERASE (RED) LED
lights up, release the button.
This will arm the instrument for an erase operation (when not in record
mode). While armed to erase memory, the RED LED will blink at a fast
rateforaperiodofveseconds.
2. Press the PRESS button for another 0.5 seconds to complete the
erase operation.
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.
Simple Logger®II Model L261
15
Erasing the Memory using DataView®:
1. Connecttheinstrumenttothecomputer,thenopentheSimple Logger®
II Control Panel.
2. Select Erase Memory from the Instrument Menu.
3. Adialogboxwillappearaskingtoconrmtheerasureofinstrument
memory. Select YestoconrmorNo to cancel the operation.
4.7 Data Storage
The logger captures trend measurements.
Thefollowingareafewdenitionsthatwillhelpwiththeunderstandingof
this section.
Input Channel: Source for the measurement channel of the instrument.
Measurement Channel: Measurement of input. This can be a simple
directmeasurement,theresultofcomplexmathematicaloperationsona
single or multiple input, or other channels.
Sample Rate: The rate at which the instrument measures inputs.
Storage Rate: The rate at which channel measurements are stored.
4.7.1 Trend Measurements
The logger stores the TRMS calculation of each of the inputs. In addition,
theusercandenethestoragerate,recordingperiodandmeasurement
format using the CongureInstrumentdialogboxintheSimpleLogger®
II Control Panel software. Trend measurements are stored at this xed
storage rate.
4.8 Normal Operation
Followingisadetaileddescriptionoftheloggeroperation.
4.8.1 Normal Operating Environment
When the instrument is turned ON, the following occurs (provided there is
sufcientbatteryvoltageandnodataisstoredintheinstrument’smemory):
The GREEN LED single-blinks. (STANDBY mode is active and•
the logger is not recording)
16
Simple Logger®II Model L261
TheREDLEDisOFF,indicatingthereisnodatainmemory•
The• PRESS button is used to Start and Stop a Recording
Session
If the• PRESS button is not pressed for a period of one minute, the
instrument will enter a low power STANDBY mode and wait for
either another button press or the recording start time to arrive (if a
recording is scheduled). While in the low power STANDBY mode,
the LEDs will not blink.
A button press of 0.5 seconds will return the unit back to the normal•
STANDBY mode
Event: Recording with Memory Cleared
When a recording starts, the logger will continue to record until one of the
following occurs:
The Session is complete•
TheMemoryisfullandtherecordingmodeisStart/Stop•
The• PRESS button is pushed until the STOP (ORANGE) LED
lightsupandisreleasedbeforethenextLEDlights
The Stop Recording command from the Simple Logger• ®IIControl
Panel is sent to the unit
The battery voltage falls below 1.7V•
Event: Recording with a Partial or Full Memory
If the RED LED is double-blinking, the memory must be cleared before
any further recording can be performed.
If the RED LED is single-blinking prior to starting a New Recording Ses-
sion, the memory is partially full.
To save, clear or check memory availability, use the Simple Logger®II
ControlPanelsoftware.
There may be instances where the GREEN LED is also double-blinking
indicating that the logger is still recording. The user can choose to stop
theRecordingSessionanddownloadthesavedsession(s)and/orclear
the memory.
NOTE: The logger memory cannot be erased while in the Record mode. The
recording must be stopped first.
Simple Logger®II Model L261
17
Event: Memory Filled During Recording Session
IftheloggerisrecordingusingtheStart/Stopmodeandmemoryislled
beforetheRecordingSessionhasnished,thesessionwillend.
The following happens:
The RED LED double-blinks•
The GREEN LED single-blinks•
At this time:
• Thememorycanbedownloadedandcleared
• Anewrecordingcanbestartedorscheduledoncethememoryis
cleared
Event: BatteryPowerisInsufcientforaFullRecordingDuration
If the battery voltage drops below 1.7V, the following will occur:
The Recording Session will terminate•
The Data will be saved•
TheGREENandREDLEDwillturnOFF•
The logger continues to record until the battery voltage drops below 1.7V.
Pressing the PRESS button may not turn the unit ON at all. The battery
voltage may rise slightly after the unit turns itself off. In this event, the unit
may turn on momentarily as a result of a button press.
The batteries must be replaced before the recorded session(s) can be
downloaded from the instrument.
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.
18
Simple Logger®II Model L261
Event: Recording Session has Ended
The logger will be in STANDBY mode if one of the following occurs:
The session terminates due to recording end time being reached•
whenrecordingintheStart/Stopmode.
TherecordinginStart/Stopmodellsthememory.•
The user terminates the session by pressing the• PRESS button
until the STOP (ORANGE) LED lights up and releasing the button
beforethenextLEDlights,orissuesaStopRecordingcommand
from the Simple Logger®IIControlPanel.
Under these conditions, it is possible to turn the logger ON from the
computertodownloadthedata,ifthebatterieshavesufcientpower.
The logger is now ready for a New Session or Download. Pressing the
PRESS button until the START (GREEN) LED lights up and releasing the
buttonbeforethenextLEDlights,willstartaNewSessiondependingon
the available memory.
4.9 Reset Button Operation
The RESETbuttonresetstheCPUandislocatedunderthetopcover.To
access this button, remove the battery compartment cover, remove the
four screws holding the two halves of the case together. The reset switch
isthesmallerswitchlocatedontheexposedPCB.
NOTE: It is recommended to only press the RESET button 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,
downloading or being configured.
Pressing the RESET button when the logger is ON will cause the instru-
ment to reset its internal clock and set the memory available to zero. The
RESET button should only be pressed as a last resort.
If the logger is not responding to a button press, make sure the unit has
sufcientbatterypower.Ifthebatteryvoltageisbelow1.7V,theunitwillnot
respond to a button press. In this condition, pressing the RESET button
will not restart the unit but will cause it to reset the internal clock.
WARNING: In an effort to preserve recorded memory, the instrument’s memory
will be marked as full when the RESET occurs. Download any desired session,
then erase the memory before starting a new recording.
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