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Digitimer DS3 Constant Current Stimulator

Home|Amplifiers and Stimulators|Digitimer DS3 Constant Current Stimulator

Prevents charge build up with a precise constant current.

DS3

Digitimer DS3 Isolated Constant Current Stimulator

Brief pulses of electricity are used in various biomedical research applications as a stimulus to excite nerve or muscle fibers. Several factors need to be considered when choosing the right stimulator.

The DS3 provides a precise Constant Current stimulus (up to 32mA) controllable in Pulse Duration and Amplitude and as with the DS2A this output comes from self-contained batteries.

The DS3 also features a “clamp” or discharge circuit which discharges the output between stimuli, preventing a charge build up on the preparation. In other constant current devices this charge build up can lead to a loss of stimulus. The DS3 can be triggered by an external device such as our new DG2A Train/Delay Generator.

NOTE: This stimulator is NOT approved for use on human subjects.

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Constant Current Stimulator

  • Four current ranges allow precise control of output between 2µA and 32mA.
  • Output discharge (Clamp) circuit prevents capacitance build-up during stimulus trains, which is important to prevent stimulus loss.
  • 90v compliance provided.
DS3

Featuring

  • Accurate and reproducible stimulus characteristics.
  • Switchable polarity, variable output and duration ranges (20µs to 2s).
  • External pulse duration control through the BNC trigger input.
  • A single-shot button, which operates irrespective of trigger inputs.
  • Cases manufactured from insulating material may be rack mounted using an optional mounting frame (Model D121-11) available from Digitimer Ltd.