Stimulators

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.