725

725

$5,815.00

The Model 725 provides eight functional channels, or internal signal paths. At any time, each channel can be assigned one of eight timing modes. Timing modes include clocks, counters, delayed pulses after triggers, etc.

 

   model725datasheet

 

   model725manual

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Description

The Model 725 coordinates, integrates and synchronizes complicated setups, simply, reliably and affordably. Featuring eight timing channels with programmable logic, unique timing modes and 10 ns resolution, the Model 725 outperforms a rack full of instruments, specialized boxes, filters and cables. Inputs can be logic signals, switches, transducers, interlocks, computer commands and gauges. The Model 725 can be programmed and controlled easily via LabVIEW or Windows. It contains sophisticated logic, gating and filtering. It has eight inputs, eight outputs and eight separate timers.

Researchers and system integrator s, needing controls and diagnostics for their experiments and systems, are regularly forced to build from scratch or to piece together several boxes. Many hours are spent learning the idiosyncrasies of each box and how to properly couple boxes to each other. Each box has its own programming protocol. Valuable time is lost to tracking connections, taming noisy signals, adjusting timing on multiple boxes and other aggravating chores. Now, one box will eliminate such issues.

 

The Model 725 logic is engineered for fast data throughput (11 ns) and minimal throughput spread (~1 ns). It would be difficult to match this performance with external cabling and hard-wired logic.

 

Multi-trigger digital delay generator

Timing Diagram for Model 725 shows Independant Timers for Each Channel, Interrelated

INNOVATIVE SOFTWARE, UNIQUE CONTROLLER

The Model 725 hardware controller can operate in stand-alone mode or via computer control. The computer control system uses its own user-friendly software, timerPRO or LabVIEW,™ both tested and proven in many experiments. timerPRO makes it easy to create sophisticated control schemes from your PC. With the Model 725 linked to your computer, you will quickly program, refine and expand experiments. Using stand-alone mode, you can store and recall up to 64 complete settings, then trigger and monitor an experiment from the Model 725’s front panel. You will have the flexibility to design experiments offline, then to embed the controller in your test environment for “set and forget” operation. The firmware in the Model 725 is field upgradeable, allowing access to new timing modes and capabilities as they become available. timerPRO’s opening window summarizes the settings and lets you configure them.

Additional information

Dimensions 24.2 × 20.8 × 6.0 cm
TIMING PROCESSOR
PROPERTY MIN MAX TYP NOTES
Trigger-pulse delay 50 ns 1370s delays over 20 s have 640 ns timing resolution
Trigger-pulse duration 7.7 µs 1370 s
Delay resolution 10 ns 10 ns
Duration Resolution 10 ns 10 ns
Delay jitter from synchronous source 10 ns
Delay jitter from internal source 200 ps 50ps
Absolute timing accuracy 0.01% 0.001% 0 to 50°C
Internal Timing 1.5625 MHz 100 MHz
External timing 1 MHz 100 MHz
External trigger pulse duration 50 ns
LOGIC PROCESSOR
PROPERTY MIN MAX TYP
Inputs 8 external 7 internal
Outputs 8 internal (to timing processors)
Throughput delay 11 ns 10 ns
PHYSICAL DIMENSIONS
PROPERT MIN NOTES
Width 208 mm (8.2″) black enamel-coated anti RFI steel enclusure electrostatically shield
Length 242 mm (9.5″)
Height 60 mm (2.4″)
ELECTRICAL CHARACTERISTICS
PROPERTY MIN MAX TYP NOTES
Input impedance 4.7kΩ DC
Input capacitance 20 pF
Output voltage levels TTL-compatible
Logical high 3.5 V 4.9 V 4.5 V 1kΩload
Logical low 0.0 V 0.2 V 0.1 V
Output source/ current
Logical high 32 mA 50 mA Short-circuit current
Logical low 64 mA 80 mA Short-circuit current
Output rise time 10 nS 1kΩload
input/ output voltage protection -30 V +30 V
PROGRAMMING REQUIREMENTS
  • Standard RS-232 interface, (e.g., external IBM PC-compatible COM port)
  • 38400 baud, 1 stop bit, no parity, RTS/CTS(hardware) flow control
  • Unit is supplied with cable for 9-pin D connector
SOFTWARE REQUIREMENTS
  • PC-compatible computer
  • Trigger software for Windows 95, NT, Me, 2000, XP or later, included
  • LabView drivers available
  • Other enviroments: Call for details
POWER REQUIREMENTS
PROPERTY MIN MAX NOTES
VOLTAGE 100-250 VAC 50-60 HZ external male AC connector with fuse, internal cooling fan internal fuse DC supply
CURRENT 0.5 A
Specifications Certification CE

The Model 725 provides eight functional channels, or internal signal paths. At any time, each channel can be assigned one of eight timing modes. Timing modes include clocks, counters, delayed pulses after triggers, etc. You can set various properties for each timing mode—for example, the delay length on a Delayed Pulse After Trigger. All modes are aligned to a precise, 100 MHz internal clock or an external clock, allowing resolution down to 10 ns. Each channel also includes logic settings which specify the conditions that will trigger the channel. A channel can be triggered by any logical combination of signals from the eight inputs and/or the outputs of other channels. The timing properties and logic that you set up in timerPRO can be transferred and stored in the memory of the Model 725. You can store up to 64 variations of these properties in settings profiles in the Model 725. You can then switch between settings profiles to switch experiments, compare different timing scenarios, or simulate different real world conditions. All settings and setting profiles for a particular experiment can be stored as an experiment file on your computer. Experiment files bear a .trg extension.

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