Mallinckrodt NPB-190 Manuel de l'opérateur télécharger pdf (Page 58)

Troubleshooting and Maintenance

2. One or more display elements or indicators do not light

during the power-on self-test.

• Do

not use the NPB-295; contact qualified service

personnel or your local Mallinckrodt representative.

3. The monitor is operating on battery power, even though

it is connected to AC.

• Ensure that the supply voltage selector switch is set to

the proper voltage.

• Make sure that the power cord is properly connected to

the NPB-295.

• Check to see if power is available to other equipment on

the same AC circuit.

4. The Pulse Search Indicator is lit for more than 10-

seconds (before any measurements are taken).

• Check the sensor directions for use to determine if an

appropriate sensor is being used and if it is applied

properly. Check sensor and extension cable

connections. Test the sensor on someone else. Try

another sensor or extension cable.

• Perfusion may be too low for the NPB-295 to track the

pulse. Check the patient. Test the instrument on

someone else. Change the sensor site. Try another type

of sensor.

• Excessive patient motion may be preventing the

NPB-295 from tracking the pulse. Keep the patient still,

if possible. Verify that the sensor is securely applied,

and replace it if necessary. Change the sensor site. Use

a type of sensor that tolerates more patient movement,

for example, an adhesive sensor.

• The sensor may be too tight, there may be excessive

ambient light, or the sensor may be on an extremity with

a blood pressure cuff, arterial catheter, or intravascular

line. Reposition sensor, as necessary.

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Mallinckrodt NPB-190 Manuel de l'opérateur Page 58