Nellcor N-6000 Repair

The Nellcor N-6000 is a pulse oximeter and capnograph made by Mallinckrodt’s Nellcor division. Pulse oximeters are non-invasive devices used to monitor a patient’s oxygen saturation. The Nellcor division focuses mainly on producing pulse oximeters and oxygen monitors.

The N-6000 model is a microprocessor-controlled device designed to continuously measure pulse rate, oxygen saturation, pulse rate, end-tidal carbon dioxide, and respiratory rate. Oxygen saturation is measured using reusable or adhesive sensors that are sold for a variety of patient sizes. The plethysmograph is displayed as a waveform and the oxygen saturation values are displayed numerically. The patient’s relative pulse strength is measured by the pulse oximetry circuits and displayed on a bar graph indicator. End-tidal carbon dioxide is measured by positioning an infrared mainstream carbon dioxide sensor across an intubated patient’s airway. The carbon dioxide is displayed as a waveform, while the amount of carbon dioxide present at the end of exhalation is presented numerically.

The N-6000 monitor provides both visible and audible alarms. Alarms are produced when a variable moves outside the operator-defined limits, when a sensor is disconnected, or when the monitor detects a loss of pulse or apnea. An audible tone signals each pulse. The pitch of the tone changes when the oxygen saturation changes with higher tones as the saturation increases and lower tones as it decreased.

The name “Nellcor Ultra Cap” is printed in the upper left-hand corner of the monitor’s front face.

Size: 104mm H x 302mm W x 257mm D (4.1” x 11.9” x 10.1”)

Weight: 13 lbs (6kg)

Display:

• Type: vacuum fluorescent & LEDs. Display are: 140.6mm x 35mm. Resolution: 256 x 64 pixels.
• Pixel size: 0.4 x 0.4 mm

Controls and Indicators:

• Front panel: on/standby; freeze; menu; pulse tone volume, up and down; alarm off; alarm off indicator; battery charging indicator; function keys (4), software configured.
• Rear panel: mains AC power ON/OFF control.

Connections:

• Front panel: connector for mainstream CO2 sensor cable; connector for SpO2 cable.
• Rear panel: power cord receptacle; fuse block; RS-232 input/output port; C-lock ECG synchronization input (3/32” mono phone jack).

Capnograph:

• Display range: 0-99 mmHg.
• Breath rate: 0-150 breaths/min.
• Accuracy: ±2 mmHg for 0-40 mmHg, ±5% of reading (increasing linearity 0.8% for every 10 mmHg) for 41-99 mmHg.
• Response time: less then 60 ms.
• Alarms: apnea; sensor disconnect; high/low ETCO2; high/low breath rate; high/low inspired CO2.

Pulse Oximeter:

• Display ranges: 0-100% SpO2, 20-250 beats/min pulse rate.
• Accuracy:
  • Adults: 70%-100% ±2 digits, 0-69% unspecified;
  • Neonates: 70%-95% ±2%, 0-69% unspecified.
• Wavelengths: 660 nm (red, nominal); 920 mm (infrared, nominal).
• Heat dissipation: non-heated: less than 50 mW total heat dissipation by LEDs (typically less than 1° C temperature rise).
• Alarms: pulse search; high/low SpO2; high/low pulse rate; SpO2 sensor disconnect.

CO2 Sensor:

• Type: mainstream. Size: <12.5 mm³ (0.5 in³).
• Weight: less than 10 grams.
• Cable length: 3 meters (9.84 feet).
• Calibration: annual accuracy check; no user calibration required.
• Temperature: 42°C nominal

Electrical:

• Power requirements: 100/120V ~, 50/60 Hz, 500 mA; 220/240V ~, 50/60 Hz, 250 mA.
• Digital/Analog input voltage: ±30 VDC, maximum.
• Leakage current: 10 µA maximum (for 110V; 20 µA maximum for 220V) from patient connections to the ground or AC mains; 100 µA maximum from AC mains to chassis ground.

Battery:

• Type: sealed lead acid.
• Operating time (fully charged): 90 minutes nominal, 180 minutes without graphics.
• Recharge period: 12 hours typical.
• Charger type: internal, current limited, constant voltage.
• Battery fuse: 1 X T 2.5 A, 250V, 3 AG.

AC Fuses:

• 100/120 V ~ 1 XT 1.0 A, 250V, 3AG;
• 220/240 V~ 2 X T 0.5 A, 5x20 mm

Nellcor N-6000 Product Page

Nellcor Pulse Oximeters

Nellcor N-6000 Specifications