Service manual

1-1
SECTION 1: INTRODUCTION
1.1 Manual Overview
1.2 NPB-190 Pulse Oximeter Description
1.3 Power-On Self Test
1.4 Related Documents
1.1 MANUAL OVERVIEW
This manual contains information for servicing the Nellcor model NPB-190
Pulse Oximeter. Only qualified service personnel should service this product.
Before servicing the NPB-190, read the operator’s manual carefully for a
thorough understanding of operation.
Warning: Explosion hazard. Do not use the NPB-190 pulse oximeter in the
presence of flammable anesthetics.
1.2 NPB-190 PULSE OXIMETER DESCRIPTION
The Nellcor NPB-190 portable pulse oximeter is intended for continuous,
noninvasive measurement of functional oxygen saturation of arterial hemoglobin
(SpO
2), and pulse rate (measured by SpO2 sensor).
The monitor is intended for use on adult, pediatric, and neonatal patients in all
hospital-type facilities and in the home environment. It may be used during intra-
hospital transport when powered by its internal battery.
Digital displays are provided for oxygen saturation and pulse rate, and a 10-
segment LED bar indicates pulse amplitude. High and low alarm limits for
saturation and pulse rate can be adjusted by the operator. The NPB-190 can
operate on AC or a rechargeable internal battery power. The controls and
indicators for the NPB-190 are illustrated in Figures 1-1 and 1-2.