Stimulator Square Wave Pulse Stimulator for Physiology Lab

The compact square wave pulse stimulator provides highly stable operation with precise digital timing control. A large LCD display and simple controls make setup and operation easy, while all relevant stimulation parameters are clearly displayed for quick reference. Several stimulation modes are available, including single, repetitive, gated, triggered and tetanic stimulation. The last-used settings are stored in memory and recalled when the unit is switched on, while two stimulation patterns can be predefined and stored for quick selection. The basic rhythm can be displayed as frequency in Hertz or as period in milliseconds. Microcontroller-controlled timing adjustment helps prevent incorrect settings. The constant voltage output provides up to 50 V with a maximum output current of ±400 mA and fast rise and fall times of less than 1 µs, making it suitable for stimulation of different types of tissues, from direct-contact nerve stimulation to tissue-bath field stimulation. The floating output circuit is not connected to earth and has a very low impedance of less than 0.1 Ω. Manufactured by Atico Export with a focus on precision, durability and consistent performance for physiological research and experimental laboratory use.

Stimulation Mode :

• SINGLE: Single stimulus triggered by the manual button or remote contact
• FREE RUN: Repeating stimulus
• GATED: Repeating stimulus triggered by the manual button or remote contact
• TRIGGER: Pulse with TTL negative-going edge starts the delay circuit
• TETANIC: 50 Hz duty cycle square wave, burst of maximum 2.5 seconds duration gated by the manual button or remote contact

Stimulation Timing Frequency :

• 0.01 to 1000 Hz in 42 coarse steps with continuous fine setting and 10 µs resolution
• 1 ms to 100 s in 41 coarse steps with continuous fine setting and 10 µs resolution

Delay Time :

• 0.1 to 500 ms in 32 coarse steps with continuous fine setting and 10 µs resolution

Width :

• 10 µs to 100 ms in 32 coarse steps with continuous fine setting and 2 µs resolution

Stimulus Output :

• Output voltage: 0 to 50 V
• Current: ±400 mA
• Rise and fall time: Less than 1 µs at 50 V and ±400 mA
• Monophasic, positive or negative
• Biphasic
• Alternated
• Output circuit floating and not connected to earth

Indication :

• LCD display with 2 lines of 40 characters each and LED backlight for stimulus parameters and settings
• LED indication for stimulus pulse
• Beep indication for errors in setting

Trigger Input/Output :

• BNC socket input or output depending on the selected mode

Input Signal :

• TTL level, negative edge or active low

Output Signal :

• TTL level, active low

Weight :

• 2.5 kg

Dimensions, H x W x D :

• 120 x 240 x 250 mm