Data Acquisition
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DC and AC True RMS Voltage Data Logger Model L261Supports direct connected voltage of up to 600 V with 0.1-volt resolution
Product Highlights Product Highlights
Model L261 is a member of the Simple logger II series of instruments and is designed for stand-alone high voltage DC and TRMS AC measurements. It features a pair of safety banana sockets that accepts a direct connected voltage of up to 600 V with 0.1-volt resolution using the provided test leads and clips without any external signal conditioning. The instrument features a built in 240,000-sample memory, integrated LED indicators to display status, and a built-in USB interface for uploading configurations and downloading recorded data. The L261 is powered from two standard AA cells providing complete portability, and a "use anywhere" design. The L261's data logging function supports sample intervals ranging from once every 125 milliseconds (eight times per second) to as long as once every day. Each L261 measurement is synchronized with the AC line such that 64 samples over one AC line cycle are taken. Frequency tracking is performed over the range of ±2Hz around the nominal line frequency (50 or 60Hz). An integrated real time clock provides time and date stamping of logged voltage data. 600 V Full Scale RangeAdapts to a wide range of DC and AC voltage measurement requirements with 0.1 A resolution. Integrated Safety Banana SocketsSafety banana sockets are built into the L261 data logger, which mate with a pair of color-coded (red and black) 5-ft. test leads and alligator clips. Programmable Sample IntervalsProgram the sample interval of the L261 to sample the applied voltage as frequently as eight times per second, to as long as once every 24 hours across 21 preselected intervals. True RMS AC MeasurementsWhen measuring AC voltage the L261 maintains measurement accuracy by applying a true rms calculation over one line cycle. Automatic Harmonic CalculationReal time harmonic calculations are available while the L261 is tethered to a PC. Automatic Line SyncingMeasurement repeatability is ensured by the L261’s line sync circuitry that ensures 64 samples per 50/60 Hz line cycle. 240,000 Sample Non-volatile MemoryAllows long measurement cycles, and ensures data will not be lost, even in the event of battery failure. Built-in Real Time ClockAllows recorded data to be correlated with an actual date and time of acquisition. Programmable Stop/Start Record TimesProgram the instrument to both start and stop recording at specific dates and times. Selectable Storage ModesChoose from simple record until full, FIFO where the oldest data is overwritten in a circular fashion, or the Extended Record Mode (XRM) where the logger automatically deletes every other sample and doubles its sample interval upon filling the data memory. Configurable AlarmsAlarm conditions can be flagged as a function of definable upper and lower limits: Above limit, below limit, inside upper/lower limit window, outside upper/lower limit window. LED Status ArrayThe instrument’s front panel contains multi-colored LEDs to clearly indicate instrument status. Long Battery LifeThe instrument is powered from two AA alkaline cells (included), which can power the instrument for 100 hours to 45 days depending upon sample interval. Includes Data Logger Configuration SoftwareSimple Logger II configuration software is included to allow instrument configuration and data retrieval via the USB port. Real time waveform and harmonic displays are also available. Includes DataView SoftwareAllows recorded data to be reviewed, analyzed, printed, and exported to Microsoft Excel. Ordering Information, Models, and Prices
Note: Pricing outside the U.S. will be higher to account for shipping, taxes, duty, currency fluctuation, local warranty and technical support in your country. Knowledge Base and Common Support IssuesGo to the Support Forum for support
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This page last updated
July 28, 2010.
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