Stimulators

Isolated Muscle & Nerve Stimulators

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Software-controlled, constant-current stimulators designed to work with a PowerLab (purchased separately) for direct or field stimulation of in vitro tissue samples. Additionally, the isolated stimulator option can also be used for in vivo animal and human studies involving nerve and muscle stimulation.

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Overview

These are two software-controlled ADInstruments Muscle and Nerve Stimulators, which are designed to work with a PowerLab to provide a range of constant-current stimulations at a compliance voltage of 100 V. Depending on the stimulation requirements and protocols, both stimulators may be used for in vitro tissue (nerve, vessel, muscle) stimulation, where:

Stimulator HC is ideal for field or larger current in vitro stimulations, such as stimulation of larger isolated muscles
Stimulus Isolator is ideal for direct or smaller current in vitro stimulations, such as isolated nerve stimulation
- also provides isolated stimulation, which allows in vivo nerve and muscle stimulation of animals and humans

Both stimulators are powered by their own Stimulator Power Supply (115/230V:12VAC) and controlled by LabChart software via two PowerLab connections:

I²C output via DB9M - DB9F Cable (400 mm)
Analog BNC Output via BNC to BNC Cable (1m)

Other independently controlled stimulators (purchased separately) are also available for use with PowerLab in other various applications, including:

Electronic Stimulator with/without Isolator
Intracardiac Electrophysiology Stimulator/Amplifier
Stimulus Generators

Configurations

Stimulator HC
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https://www.adinstruments.com/products/stimulators#product-FE155

FE155

A LabChart controlled, constant high current stimulator, which is designed for direct or field stimulation of tissue samples in vitro. It is supplied with Stimulator HC Leads (2m).

Stimulus Isolator
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https://www.adinstruments.com/products/stimulators#product-FE180

FE180

bftype ce

A LabChart controlled isolated constant current pulses stimulator designed for direct stimulation of tissue samples in vitro. Additionally, it electronically isolated for subject safety, making it also suitable for applications in vivo. It is supplied with a set of shrouded plugs (one red, one black) for customizing one's own stimulating electrodes. A variety of stimulator leads are also available (purchased separately), including:

Research Applications

Features

Quick and easy setup and usage with powerful LabChart software control
- Intuitive graphical interface and quick selection of pulse waveform options
- Stimulation generation tracking option
- Automated stimulation options
- Analog OFF/ON switch override
Current output of up to 10 mA (Stimulus Isolator), and to 100 mA (Stimulator HC) and at 100 V compliance voltage.
Compact design
A Status indicator light on the front panel; lights green with every pulse.
A small internal beeper can be enabled to give an audible beep with every pulse delivered.

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Details and Tech Specs

Product Codes

FE155

Stimulator HC

FE180

Stimulus Isolator

bftype ce

Technical

Stimulator HC

Output

Connection type: Two 2 mm touch proof safety plugs
Output configuration: Constant-current stimulator with hardware limited repetition rate
Output waveform: Rectangular, monophasic pulses with software selectable pulse amplitude and duration
Isolation rating: 4000 V AC_rms for 1 minute
Safety indicators: A single multi-color indicator displays the Stimulator HC status. A green flash indicates delivery of a valid stimulus. A yellow flash indicates an out-of-compliance condition (OOC).
Safety switch: Isolating On-Off switch flicks down to disconnect quickly
Compliance voltage: 100 V fixed
Current ranges: 1 mA, 10 mA, 100 mA full scale
Current rise time: <1 μs (100 Ohm load @ 100 mA) 25 μs (10 kOhm load@ 0.5 mA)
Current fall time: <1 μs (100 Ohm load @ 100 mA) 25 μs (10 kOhm load @ 0.5 mA)
Note: Rise and fall times are proportional to load resistance and capacitance.
Operating duty cycle: up to 20%
Resolution: 1% of full scale (10 μA, 100 μA, or 1 mA)
AC line leakage current: <200 nA p–p
Differential output noise: <1 μA p–p
Output capacitance: ~70 pF (without cable)
Power source: Non-isolated circuitry supplied by PowerLab via I²C connection. Isolated and high-voltage circuitry derives power from the external 12 V AC, 300 mA_rms, wall-plug transformer. High voltage isolation is provided by an internal isolation transformer. No batteries required.

Pulse Control (internal pulse duration control)

Pulse duration range: 0.02 to 5.12 ms in 0.02 ms steps
Duration accuracy: ±0.01% +5/-0 μs
Repetition rate: up to 30 Hz
Repetition accuracy: ±0.1% (determined by PowerLab)
Current rise delay: 22–45 μs (variable)

Control Port

I²C port: Provides control and power
Interface communications rate of ~50 kbits/s

Physical Configuration

Dimensions (h × w × d): 55 mm × 120 mm × 260 mm (2.2" × 4.7" × 10.2")
Weight: 1.3 kg (2 lb 15 oz)
Operating temperature range: 5–35 °C, 0–90% humidity (non-condensing)

ADInstruments reserves the right to alter these specifications at any time.

Stimulus Isolator

Output

Connection type: 2 × 4 mm (0.16") shrouded banana plugs
Output configuration: Constant-current stimulator with hardware limited repetition rate, with following discharge clamp
Output waveform: Rectangular, monophasic pulses with software-set pulse amplitude and duration
Safety: Approved to IEC60601-1 BF (body protection) standard
Isolation rating: 4000 V AC_rms for 1 minute
Safety indicators: A single multi-color indicator displays the isolated stimulator status. A green flash indicates delivery of a valid stimulus. A yellow flash indicates an out-of compliance condition
Safety switch: Isolating on-off switch flicks down to disconnect quickly
Compliance voltage: 100 V fixed
Current ranges: 100 μA, 1 mA, or 10 mA full scale
Current rise time: <1 μsec (1 kΩ load @ 10 mA) 25 μsec (100 kΩ load@ 0.5 mA)
Current fall time: <1 μsec (1 kΩ load @ 10 mA) 25 μsec (100 kΩ load @ 0.5 mA)
Operating duty cycle: up to 20%
Resolution: 1% of full scale (1 μA, 10 μA, or 100 μA)
AC line leakage current: <200 nA p–p
Differential output noise: <1 μA p–p
Power source: Non-isolated circuitry supplied by PowerLab via I²C connection Isolated and high-voltage circuitry derives power from the external 12-volt AC, 300 mArms, wall-plug transformer. High voltage isolation is provided by an internal isolation transformer. No batteries required.

Pulse Control (internal pulse duration control)

Pulse duration range: 0.01 ms to 2.56 ms in 0.01 ms steps
Duration accuracy: ±0.01% +5/-0 μs
Repetition rate: up to 2000 Hz
Repetition accuracy: ±0.1% (determined by PowerLab)
Current rise delay: 12 to 22 μs (variable)

Control Port

I²C port: Provides control and power.
Interface communications rate of ~50 Kbits/s.

Physical Configuration

Dimensions (h × w × d): 55 mm × 120 mm × 260 mm (2.2" × 4.7" × 10.2")
Weight: 1.3 kg (2 lb 15 oz)
Operating temperature range: 5 to 35 °C, 0 to 90% humidity (non-condensing)

ADInstruments reserves the right to alter these specifications at any time.

Stimulator HC

Stimulus Isolator

Stimulators

Isolated Muscle & Nerve Stimulators