Dataq Data Logger L261

Dataq Data Logger 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 Dataq Data Logger L261 is powered from two standard AA cells providing complete portability, and a "use anywhere" design.

 

The Dataq Data Logger 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 Dataq Data Logger 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 Range

Adapts to a wide range of DC and AC voltage measurement requirements with 0.1 A resolution. 

 

Integrated Safety Banana Sockets

Safety banana sockets are built into the Dataq Data Logger L261 data logger, which mate with a pair of color-coded (red and black) 5-ft. test leads and alligator clips. 

 

Programmable Sample Intervals

Program the sample interval of the Dataq Data Logger 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 Measurements

When measuring AC voltage the Dataq Data Logger L261 maintains measurement accuracy by applying a true rms calculation over one line cycle. 

 

Automatic Harmonic Calculation

Real time harmonic calculations are available while the Dataq Data Logger L261 is tethered to a PC. 

 

Automatic Line Syncing

Measurement repeatability is ensured by the Dataq Data Logger L261’s line sync circuitry that ensures 64 samples per 50/60 Hz line cycle. 

 

240,000 Sample Non-volatile Memory

Allows long measurement cycles, and ensures data will not be lost, even in the event of battery failure. 

 

Built-in Real Time Clock

Allows recorded data to be correlated with an actual date and time of acquisition. 

 

Programmable Stop/Start Record Times

Program the instrument to both start and stop recording at specific dates and times. 

 

Selectable Storage Modes

Choose 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 Alarms

Alarm 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 Array

The instrument’s front panel contains multi-colored LEDs to clearly indicate instrument status. 

 

Long Battery Life

The 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 Software

Simple 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 Software

Allows recorded data to be reviewed, analyzed, printed, and exported to Microsoft Excel.