Datex-Ohmeda S-5 Service Manual M-NSAT M-OSAT

Datex-Ohmeda

S/5™ Nellcor Compatible Saturation Module, M-NSAT (Rev. 03)

S/5™ Datex-Ohmeda Oxygen Saturation Module, M-OSAT (Rev.00)

Technical Reference Manual Slot

Datex-Ohmeda Inc.
3030 Ohmeda Drive
53707-7550 MADISON, WIS
USA
Tel. [phone] Fax [phone]

www.us.datex-ohmeda.com

All specifications are subject to change without notice.

Document No. 8002219

June 2001

Datex-Ohmeda Division,

Instrumentarium Corp.

P.O. Box 900, FIN-00031

DATEX-OHMEDA, FINLAND

Tel. [phone] Fax [phone]

www.datex-ohmeda.com

 Instrumentarium Corp. All rights reserved.

Table of contents

TABLE OF CONTENTS

Nellcor Compatible Saturation Module, M-NSAT
Datex-Ohmeda Oxygen Saturation Module, M-OSAT

TABLE OF CONTENTS i

TABLE OF FIGURES ii

Introduction 1

1 Specifications 3

1.1 General specifications ..............................................................................................................................3

1.2 Typical performance of M-NSAT.................................................................................................................3

1.3 Typical performance of M-OSAT.................................................................................................................4

2 Functional description 5

2.1 Main components of M-NSAT ....................................................................................................................5

2.2 Main components of M-OSAT ....................................................................................................................5

2.2.1 NIO and OIO Interface board .............................................................................................................6

2.3 Connectors and signals.............................................................................................................................8

2.3.1 Module bus connector......................................................................................................................8

2.3.2 Other connectors..............................................................................................................................8

3 Service Procedures 9

3.1 General service information.......................................................................................................................9

3.2 Service check .........................................................................................................................................10

3.2.1 Recommended tools ......................................................................................................................10

3.3 Disassembly and reassembly..................................................................................................................12

4 Troubleshooting 13

4.1 Troubleshooting chart .............................................................................................................................13

4.2 Troubleshooting flowchart .......................................................................................................................14

5Service MENU 15

5.1 M-NSAT menu ........................................................................................................................................16

6 Spare Parts 17

6.1 Spare part lists of the M-NSAT.................................................................................................................17

6.1.1 Nellcor Compatible Saturation Module, M-NSAT rev. 00...................................................................17

6.1.2 Nellcor Compatible Saturation Module, M-NSAT rev. 01...................................................................17

6.1.3 Nellcor Compatible Saturation Module, M-NSAT rev. 02...................................................................18

6.1.4 Nellcor Compatible Saturation Module, M-NSAT rev. 03...................................................................18

6.1.5 Front panel stickers for AS/3 modules.............................................................................................18

6.1.6 Front panel stickers for S/5 modules...............................................................................................18

6.2 Spare part lists of M-OSAT.......................................................................................................................19

6.2.1 Datex-Ohmeda Oxygen Saturation Module, M-OSAT rev. 00 .............................................................19

6.2.2 Front panel stickers ........................................................................................................................20

7 Earlier Revisions 21

APPENDIX A 23

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Datex-Ohmeda S/5 monitors

Service check FORM A-1

TABLE OF FIGURES

Figure 1 Nellcor Compatible Saturation Module, M-NSAT ...................................................................................... 1

Figure 2 Datex-Ohmeda Oxygen Saturation Module, M-OSAT .................................................................................1

Figure 3 NIO and OIO Interface board block diagram....................................................................................... 6

Figure 4 Module troubleshooting flowchart ...................................................................................................14

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Document No. 8002219

INTRODUCTION

This section provides information for the maintenance and service of the Datex-Ohmeda Nellcor
Compatible Saturation Module, M-NSAT and the Datex-Ohmeda Oxygen Saturation Module, M­OSAT. The M-NSAT and M-OSAT are single width plug-in modules designed for use with the S/5
monitors. The M-NSAT module utilizes Nellcor’s pulse oximetry algorithm and it should be used
with Nellcor’s pulse oximetry transducers only. The M-OSAT module utilizes Datex-Ohmeda pulse
oximetry algorithm and it should be used with Datex-Ohmeda OxyLead Compatible and Integrated
sensors. Only one pulse oximetry source at a time is allowed by the monitors. If M-NE(12)STPR/M­NE(12)STR/M-ESTPR/M-ESTR and M-NSAT or M-OSAT modules are plugged in the monitor
simultaneously, then M-NSAT or M-OSAT overrides modules mentioned above as a pulse oximetry
source.

Oxygen Saturation Modules, M-NSAT, M-OSAT

Figure 1 Nellcor Compatible Saturation
Module, M-NSAT

Figure 2 Datex-Ohmeda Oxygen Saturation
Module, M-OSAT

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1 SPECIFICATIONS

1.1 General specifications

Module size, (W × D ×H) 37 × 180 × 112 mm/1.5 × 7.1 × 4.4 in
Module weight 0.4 kg/1 lbs
Power consumption 3 W

1.2 Typical performance of M-NSAT

Measurement range and
display range 40 to 100 %
Calibration range 70 to 100%
Accuracy 100 to 70 %: ±2 digits
(% ±1 SD)

Resolution 1 digit = 1 %
Display averaging 5...7 s
Display update 5 s
Pulse beep pitch Varies with SpO

1

Oxygen Saturation Modules, M-NSAT, M-OSAT

69 to 50 %: ±3 digits
50 to 40 %: unspecified

level

2

The monitor is calibrated over the measurement range against functional saturation SpO

ALARM

Alarm default limits
high alarm OFF
low alarm 90%

HEART RATE FROM PLETH

Measurement range 20 to 250 bpm
Accuracy ±3 bpm
Resolution 1 bpm
Display averaging 5...7 s
Adjustable pulse beep volume

PLETH WAVEFORM

Scales Automatic scaling

Protection against electrical shock Type BF

(func).

2

1

1 SD (standard deviation) = 68 % of all readings in the specified range in stable conditions.

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Datex-Ohmeda S/5 monitors

1.3 Typical performance of M-OSAT

Measurement range and
display range 40 to 100 %
Calibration range 70 to 100%
Accuracy 100 to 70 %: ±2 digits
(% ±1 SD)1 69 to 50 %: unspecified

Resolution 1 digit = 1 %
Display averaging 12 s typical
Display update 5 s
Pulse beep pitch Varies with SpO2 level

The monitor is calibrated over the measurement range against functional saturation SpO 2 (func).

ALARM

Alarm default limits
high alarm OFF
low alarm 90%

HEART RATE FROM PLETH

50 to 40 %: unspecified

Measurement range 30 to 250 bpm
Accuracy ±2 digits or ±2 bpm, whichever is greater
Resolution 1 bpm
Display averaging 12 s typical
Adjustable pulse beep volume

PLETH WAVEFORM

Scales Automatic scaling

Protection against electrical shock

Type BF

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2 FUNCTIONAL DESCRIPTION

2.1 Main components of M-NSAT

The M-NSAT module consists of the following parts

Oxygen Saturation Modules, M-NSAT, M-OSAT

• SpO

sensor board

2

• Sensor connector cable

• Nellcor Pulse Oximeter Module MP-204

• NSAT interface board (NIO)

Sensors can be plugged into the M-NSAT module either directly or using sensor extension cables
available from Nellcor. Sensors are plugged into a 9-pin female connector (D-type) on the front
panel of the module. This connector is mounted on a small PC board, which is connected by a flat
cable to the MP-204.

The MP-204 is a surface mounted PC board manufactured by Nellcor Incorporated. It contains the
signal processing electronics and software that are based on Nellcor’s stand-alone pulse
oximeters. The MP-204 is used with an internal preamplifier.

The measured SpO

and pulse rate values, as well as status information, are transferred from the

2

MP-204 to the NSAT interface board. Communication between the MP-204 and NSAT interface
board is established through RS232C serial interface. The NSAT interface board, in turn, transmits
the measurement information to the module bus of the monitor through RS485 serial interface.

2.2 Main components of M-OSAT

The M-OSAT module consists of the following parts

• SpO

• Datex-Ohmeda Proloque module board

• OIO interface board

Sensor can be plugged into the M-OSAT module either directly or using sensor extension cables
available from Datex-Ohmeda. Sensors are plugged into a 9-pin female connector (Datex­Ohmeda) on the front panel of the module. This connector is mounted on a small PC board, which
is connected to the Proloque module by a cable. The EMC ferrite of this cable is mounted at the
back of the front panel.

sensor board and cable set

2

The Proloque module board is a surface mounted PC board manufactured by Datex-Ohmeda. It
contains the signal processing electronics and software. The Proloque module is used with an
internal preamplifier.

The measured SpO

and pulse rate values, as well as status information, are transferred from the

2

Proloque module to the OIO interface board. Communication between the Proloque module and
OIO interface board is established through RS232C serial interface. The OIO interface board, in
turn, transmits the measurement information to the module bus of the monitor through RS485
serial interface.

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