Model DI-808

DI-808 Web-based Voltage and Thermocouple Data Logger system. Features 8 isolated analog input channels programmable as a thermocouple or voltage input, 16-bit measurement resolution, and a full scale range of ±10mV to ±50V for voltage measurements or Thermocouple types J, K, T, B, R, S, E, or N.

Model DI-808 is a giant step forward in the evolution of data logger technology toward autonomous and device-independent operation. Its built-in web server allows you to access, configure, manage, and oversee in real time all aspects of the instrument’s measurement process with Any device from Anywhere, Anytime. You stay in control at all levels, from device configuration and real time monitoring, to the acquired data with your smart phone, tablets, or PC with any OS. The DI-808’s Ethernet interface allows it to integrate with any network. And simple port forwarding exposes the instrument to the Internet, allowing remote access from any location on the planet. Test drive DI-808 by visiting one located in DATAQ!

Built around the DI-808’s web server is a powerful data logger engine that adapts to a wide range of analog and pulse measurements. Eight analog input channels feature channel-independent voltage and thermocouple configurations. Voltage measurements support ±10 mV to ±50 V measurements across twelve programmable ranges. Thermocouple configurations support J, K, T, B, R, S, E, and N types. Full channel isolation allows virtually any measurement in tough industrial environments: grounded thermocouples, powered thermocouples, off-ground current shunts, as well as unexpected and unknown ground potential differences. Complementing the analog input channels are four pulse inputs. Each can be independently programmed for simple state detection, to operate as a counter, or make a frequency measurement. Use these functions to acquire, for example, volume data from a flow sensor (count), and flow rate (frequency.) Other examples are rpm measurements or simple counting in production or product life test applications. Both analog and pulse measurements are reported synchronously in the same sampling interval, and all measurements are time-and-date-stamped. Sampling intervals are pro-grammable as often as once every 25 mS or as infrequently as once every hour, with 18 selectable intervals in between. There’s even an external option to synchronize sampling to external events.

The DI-808 also provides four alarm output channels that can be used to flag exceptions during a recording. Each discrete output can be used to signal a PLC, turn on an alarm, or otherwise used as demanded by the application. Each alarm output is also linked to the web interface, where an email alert (or text alert, if supported by your provider) can be triggered when the alarm activates.So, even though you may be miles from the instrument, you’re only a few swipes on your smart device away from real time process updates.

The DI-808 supports exceptional triggering flexibility to determine when the data logger should start and stop recording data, and when alarms should be activated. All or any subset of analog and pulse input channels can be tested, and conditions that stop and start record-ing can be entirely different. The start and stop recording processes can be a function of input levels, an alarm state, a specific date and time and day-of-the-week. Level tests support single and dual modes. Single levels support above- and below-threshold tests. Dual levels test inside or outside a trigger window. All enabled trigger conditions per analog or digital input can be combined in a selectable Boolean AND/OR function to further refine trigger definitions. So, if you want to begin recording when channel 2 exceeds 34 psi AND when channel 5 is greater than 84 but less than 127 pounds, and then stop recording at 10 pm on Sunday evening, you can do it. You can even configure the instrument to re-trigger itself automatically. Finally, when the DI-808 completes a start/stop recording cycle it can be configured to send data to one or all of five destinations ranging from local to remote servers, multiple email addresses, and even a USB drive with built-in flash memory providing transparent backup.