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
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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
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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
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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.
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