Precautions; Warnings; Failure Of Operation; Data Validity - GE TruTrak+ 3900 User Manual

Precautions

Two types of precautions appear in this manual: warnings and cautions.
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NOTE: If you connect a modem, refer to the precautions contained in the
instructions you received with your modem.

Warnings

Failure of operation

If the oximeter fails any part of the checkout procedures or current leakage test,
remove it from operation until qualified service personnel have corrected the
situation.
It is possible for any device to malfunction; therefore, always verify unusual data
by performing a formal patient assessment.

Data validity

Conditions that may cause inaccurate readings and impact alarms include
interfering substances, excessive ambient light, electrical interference, excessive
motion, low perfusion, low signal strength, incorrect sensor placement, poor sensor
fit, and movement of the sensor on the patient.
To prevent erroneous readings, do not use an inflated blood pressure cuff or
arterial blood pressure measurement device on the same limb as the oximeter
sensor.

Explosion hazard

Do not use the monitor in the presence of any flammable anesthetic mixture.

Electrical shock hazard

Do not remove the monitor cover. An operator may only perform maintenance
procedures specifically described in this manual. Refer servicing to qualified
service personnel trained in the repair of this equipment.
Measure the oximeter's leakage current whenever an external device is connected
to the RS-232 port. Forward and reverse polarity = 100 microamperes maximum.
This equipment must be properly grounded.
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A WARNING indicates the possibility of injury to the patient or operator.
A CAUTION indicates a condition that may lead to equipment damage or
malfunction.
Electrical safety specifications (e.g., current leakage and ground resistance)
can be assured only when the monitor is connected to a three-wire, grounded
receptacle without the use of extension cords or adapters.
If there is any doubt about the integrity of the AC power supply protective
earth conductor, operate the monitor on internal battery power.
Because the unit is not grounded when it is operating on battery power, do not
connect any equipment to the RS-232 connector on the rear panel unless the
unit is connected to the AC power supply.
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