GRASS SD9B NERVE STIMULATOR NEUROLOGY 100% WORKING WATCH VIDEO FREE SHIP

This listing is for a GREAT CONDITION GRASS SD9B STIMULATOR as can be WATCHED IN THE VIDEO and also seen in the pictures.

This listing is for an Grass SD9 Nerve and Muscle Stimulator in Excellent Condition. No Probes are Included.

FEEL FREE TO WATCH A VIDEO OF THIS UNIT WORKING BY CLICKING THE FOLLOWING LINK: https://www.youtube.com/watch?v=ZhlJjWqgTMs

CONDITION

Cosmetic - GOOD

Working - EXCELLENT OPERATIONAL CONDITION

The Grass SD9 B Square Pulse Stimulator is an Electronic Stimulator that is designed to deliver square wave voltage pulses for stimulating biological preparations. 

Pulses are applied across the + (red) and - (black) output jacks and are isolated from chassis ground. 

Stimulation may be delivered as single pulses, twin pulses, or as a train of pulses with a specified frequency. 

The stimulator can be internally triggered, triggered from an external electrical signal, or triggered manually. 

It also produces a separate synchronization pulse.

What you will get:

# Grass SD9 Nerve and Muscle Stimulator Ex. Condition

# Power Cord

*No probes are included with this device. Guaranteed no DOA.

SD9 SQUARE PULSE STIMULATOR

For Student and Limited Research Applications

The SD9 Stimulator is a compact, rugged unit capable of handling a wide range of stimulator applications for student teaching as well as research laboratories. 

The built-in isolation circuit enhances subject safety and minimizes stimulus artifacts. 

The twin pulse circuit makes this stimulator ideal for refractory measurements.

Built-in Signal Marker

For those investigators requiring a signal mark for each stimulus in a volly, a signal marker circuit is included. 

This circuit is relay controlled and provides a contact closure for each stimulus up to about 30 per second. 

At higher rates, the contacts remain closed.

SPECIFICATIONS

Delay Function 0.02 to 200 msec (4 decades); Separates PREPULSE SYNC OUT pulse from the stimulus pulse; Used to set refractory time interval for TWIN PULSE operation

Synchronous Outputs PREPULSE SYNC OUT precedes the stimulus pulse as selected by the variable delay; PULSE SYNC OUT occurs at the end of delay period which is coincident with the onset of the stimulus pulse

Frequency 0.2 to 200 PPS (3 decades)

Duration 0.02 to 200 msec (4 decades)

Output Volts (Peak) 0.1 to 100 volts (3 decades)

Output Impedance ²1 kohm

Maximum Power Out 2.5 watts peak

Sync Input and Output +5 volts, TTL compatible

Output Isolation Circuit Built-in to allow recording with the stimulator at the preparation site with minimum artifact; Output voltage not referred to ground; Output polarity selectable

Biphasic Output Can be selected to reduce electrode polarization and ion transfer

Monitor Lamps

Flashes with each stimulus pulse

Accuracy ±10% or better for all parameters

Maximum Power 30 watts at 110 volts, 50/60 Hz; Typical Power is 5 watts

Physical Size 9.5" W x 5.25" H x 5.5" D (24.1 cm x 13.3 cm x 14 cm)

Weight 3.7 lbs. (1.6 kg)

Regulatory Safety: UL 3101-1, CSA C22.2 No. 1010-1, EN 61010-1 Other European Standards: EN 55011, EN 50082-1 European Directives: 73/23/EEC, 89/336/EEC

STOCK # 19269