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D340 Count & Delay Module


This single width module will allow a stimulus pulse of the width set on the D332T Pulse to be added to the output train at a selected delay after a selected number of stimuli.  Such a feature is useful in determining Effective Refractory Period (ERP).

  

Count
Range: 01 - 99 by a two digit thumbwheel switch
Selector:
  • Every nth Pulse - Reset at start of Gate, then every nth
  • OFF
  • Once per Gate - After the nth Pulse
 
Delay
Total Range: 0.1 milli-seconds - 1 second
Control: Single turn (270o) control marked 1 - 10 with intermediary integer panel marks
Accuracy: Single turn: +1% at '1' and '10' marks
                  +5% at intermediary marks
Multiplier: x0.1, x1, x10, x100 by 4 position rotary switch
Indicator: Amber LED illuminates for each 'Sync' pulse as selected.
Sync. Output TTL output for external monitoring, see selection below
optionally :- +15V position pulse by on-board jumper
Sync. Selection: Internally selected by on-board jumper as :-
  • the pulse that triggers the delay
  • the delayed pulse
  • both the triggering and delayed pulse
 
Warning Indicator
Error: Red LED that illuminates if:
  • Gate is too short for a delayed pulse
  • a Pulse is active when a Delayed Pulse is requested


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