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Safety Notes
lead Bio Amp subject cable and lead wire system. The ML138 Octal Bio
Amp is supplied with unshielded lead wires (1.8 m). Bio Amps are only
safe for human connection if used with the supplied subject cable and lead
wires.
•
All Bio Amp front-ends and PowerLab units with a built-in Bio Amp are
not defibrillator-protected. Using the Bio Amp to record signals during
defibrillator discharges may damage the input stages of the amplifiers.
This may result in a safety hazard.
•
Never use damaged Bio Amp cables or leads. Damaged cables and leads
must always be replaced before any connection to humans is made.
Isolated Stimulator Safety
Instructions
The Isolated Stimulator outputs of a front-end signal conditioner or PowerLab
with a built-in isolated stimulator are electrically isolated. However, they can
produce pulses of up to 100 V at up to 20 mA. Injury can still occur from
careless use of these devices. Several points must be observed for safe
operation of the Isolated Stimulator:
•
The Isolated Stimulator output must only be used with the supplied bar
stimulus electrode.
•
The Isolated Stimulator output must not be used with individual
(physically separate) stimulating electrodes.
•
Stimulation must not be applied across the chest or head.
•
Do not hold one electrode in each hand.
•
Always use a suitable electrode cream or gel and proper skin preparation
to ensure a low-impedance electrode contact. Using electrodes without
electrode cream can result in burns to the skin or discomfort for the
subject.
•
Subjects with implantable or external cardiac pacemakers, a cardiac
condition, or a history of epileptic episodes must not be subject to
electrical stimulation.
•
Always commence stimulation at the lowest current setting and slowly
increase the current.
•
Stop stimulation if the subject experiences pain or discomfort.
•
Do not use faulty cables, or those that have exhibited intermittent faults.
•
Do not attempt to measure or record the Isolated Stimulator waveform
while connected to a subject using a PowerLab input or any other piece of
equipment that does not carry the appropriate safety symbol (see Safety
Symbols above).
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