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> Grass square pulse stimulator model S48 d S48D
Grass square pulse stimulator model S48 d S48D
GRASS SQUARE PULSE STIMULATOR MODEL S48!
Grass S48 Stimulators are still in production
Powers on and appears to function correctly
Single, Repetitive and Train Outputs. TTL Synchronization, External Analog Control of Rate
The S48 is a general purpose stimulator intended for nerve and muscle stimulation procedures
with applications extending from single cell to entire muscle stimulation.
It can be set to deliver single, repetitive, twin pulses, trains of pulses and trains of twin pulses from its single output.
Features include computer compatibility and flexibility of synchronization circuits.
The synchronous inputs and outputs are TTL, 5 volt, PC compatible.
A rear DB25S connector permits external analog control of the timing circuits.
The constant voltage output is a positive, nonisolated voltage and must be used with an
optional Stimulus Isolation Unit for applications requiring isolation and/or constant current.
Here is a link to the GRASS Website
http:// /products/stimulators/stims48.html
Product Specifications from manufactures website includes:
1/100 sec to 100 TPS; single or repetitive
1/100 sec to 1000 PPS (5 decades), singel or repetitive
STIM, DELAY, TRAIN Front Panel: 10 sec, 50 ohm Rear Panel: 1 or 10 msec and Train End
STIM DELAY, TRAIN DURATION; Trigger from rising or falling edge
All SYNC INPUTS and OUTPUTS; External Analog Rate Control
10 mV to 150 volts (5 decades)
250 ohm nominal on all voltage ranges;
25 ohm and 100 kohm on highest range
115/230 volts, 50/60 Hz, 70 watts peak, 15 watts standby
Optional S48RK: 19" (48.3 cm) Rackmount brackets
