• For Electric Motor/Generator Maintenance, and Troubleshooting in Mills, Locomotion, and DC
• Drive System Applications
• Standard Printer Port, Optional USB or Ethernet Interface
• 14-Bit Resolution

The DI-730 Series is a family of instruments that offer 14-bit resolution and 150-200 kHz waveform recording capability. They communicate through your PC's parallel port or an optional Ethernet or USB interface.

Use the DI-730 for wide dynamic range measurements, especially those involving AC or DC electric motors. Examples include paper, aluminum, and steel mills; high speed trains; and rail and seagoing locomotion. The high sample rate, exceptional isolation, and CMR characteristics of the DI-730 make it very well suited for maintenance and troubleshooting of DC drive systems. Other applications include RPM measurements from motor/generators, supply voltage and current measurements, and field current measurements from drive-roll, braking, and take-up motors.

The Ethernet communication option connects DI-730 Series products to any local area network (LAN). Direct Internet access is also possible. This patent-pending communication option uses standard CAT-5 cable to yield continuous data acquisition throughput rates up to 180 kHz. Multiple DI-730 products (each equipped with an Ethernet interface) may be daisy-chained together to form an ad-hoc extended network of autonomous, yet fully synchronous data acquisition stations. Each station can sample at a different rate (up to 180 kHz throughput) and still maintain full synchronization. Station separation can be as far as 100 meters.

DI-730 Offers Isolation, Wide Dynamic Measurement Range
The 8-channel DI-730 Series features a measurement range of ±10mV to ±1000VDC (or peak AC) over six gain ranges with ±1000V channel-to-channel and input-to-output isolation. Replace entire racks of isolation amps, high and low voltage amps, and data acquisition subsystems with one, portable, lightweight instrument. Channel-to-channel isolation protects delicate control circuits, computer equipment, and personnel from high common mode voltages.

Printer Port, USB, or Ethernet Interface
DI-730 instruments are available with printer port, Ethernet, and universal serial bus (USB) communication interfaces. All instruments have a 25-pin male printer port connector for EPP, bidirectional, or standard mode parallel port communication with your PC. Options add Ethernet communication capability with a RJ45 connector, or a USB port for universal serial bus communication. The optional communication interfaces sacrifice the standard PP mode and cannot be used concurrently with the printer port.

Synchronized Distributed Ethernet Data Acquisition
Daisy chain multiple DI-720 and/or DI-730 Ethernet units for a fully synchronous distributed Ethernet data acquisition system.

Burst Sampling A/D
Connect to DC or near DC signals like temperature, generator-based RPM, or other slow process variables. Sample rates well into the sub-Hertz range are possible. Use for high speed applications such as modulated DC drives and other AC waveform situations.

High Resolution Capability
DI-730 instruments apply 14 bits of resolution to your measurement task.

Easy to Connect & Use
All instruments connect in seconds to your PC's parallel port, Ethernet connector, or USB port.

WinDaq Software Included
WinDaq/Lite is free with the purchase of every instrument. WinDaq/Lite is restricted to a maximum throughput of 240 Hz when recording to disk (when 2 or more channels are enabled). Increase record-to-disk rates with WinDaq/Pro or WinDaq/Pro+. Use WinDaq Waveform Browser (free) to review, measure, compare, and analyze the waveform file after it has been recorded by WinDaq acquisition software.