Fisher-paykel MR850 Uživatelský manuál Strana 7
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MR850 Technical Manual * Revision J * Issued November 2005 * Ref. 185041340 (185041713 internal)
7
Introduction
1.1 About this Manual
This manual is intended for qualified service personnel who will perform maintenance and
servicing on the Fisher & Paykel Healthcare MR850 Respiratory Humidifier. This manual
covers the product specifications, includes a maintenance schedule, and provides the
necessary information required for servicing.
NOTE: Some software may not be available in your country. Refer to your local Fisher &
Paykel Healthcare representative for the appropriate software version. Maintenance
procedures should be carried out at regular intervals (as recommended in the maintenance
schedule), to ensure that the humidifier and its accessories are working correctly.
If a fault should occur with the humidifier, follow the troubleshooting guide (section 6) in order to
find the most likely cause. If the unit requires servicing, make sure the servicing procedures are
followed in order to prevent damage to the humidifier. After service, or as part of the
maintenance schedule, a humidifier performance check should be completed.
Due to the nature of the electronics contained within this humidifier, it is not recommended that
the printed circuit boards be serviced at component level. Instead, if the PCBs are found to be
malfunctioning, they should be replaced.
1.2 Glossary
Chamber
Device that allows gas to be to be heated and humidified by passing it
over heated water.
Temperature / Flow
Probe
Sensor assembly for measuring temperature and flow of respiratory
gases traveling through the breathing circuit. Consists of a chamber
and airway probe.
Airway Probe
Sensor assembly for measuring gas temperature at the end of the
inspiratory limb.
Chamber Probe
Sensor assembly for measuring gas flow and temperature at the
outlet of the humidification chamber.
Thermistor
A temperature sensitive resistor placed inside the chamber and
airway probes.
Chamber Set Point
The temperature that the humidifier attempts to maintain at the
chamber probe port.
Airway Set Point
The temperature that the humidifier attempts to maintain at the airway
probe port.
Heater Wire Adaptor
Electrical connector between the breathing circuit and the humidifier.
Breathing Circuit
Tubing that carries respiratory gases to and from the patient.
Dual Heated Breathing
Circuit
A breathing circuit that is heated by means of heater wires, in both the
expiratory and inspiratory limbs.
Single Heated
Breathing Circuit
A breathing circuit that is heated by means of a heater wire, in only
the inspiratory limb.
PCB
Printed Circuit Board.
Heater Wire
Wire inside the breathing circuit which heats the respiratory gases.
Inspiratory Limb
The section of the breathing circuit that takes the inspired gases to
the patient.
- MR850 RESPIRATORY 1
- HUMIDIFIER 1
- TABLE OF CONTENTS 3
- Introduction 7
- 1.3 Definitions 8
- 1.4 Product Application 8
- 2 Humidifier Symbols 9
- 3 Specifications 10
- 3.4 Performance 11
- 3.6 Standards and Approvals 11
- 4.1 Humidifier Operation 12
- 4.2 Humidifier Controls 16
- 4.3 Temperature Display 17
- 4.4 Setup Indicators 17
- 4.5 Operational Alarms 19
- 5 Maintenance Procedures 21
- 5.2 Safety Check 22
- 5.3 Cleaning Instructions 23
- 6 Troubleshooting 24
- 6.2 Technical Problems 26
- 6.4 Diagnostic Menu 29
- Display Description 30
- Display Description 32
- 7 Servicing Procedures 35
- 8 Performance Testing 44
- 8.2 Probe Accuracy Check 47
- (Blank) 50
- 10 Spare Parts 51
- Heater Plate Assembly 53
- 11 Calibration Probe 55
- 12.1 INTRODUCTION 56
- 12.2 INSTALLATION 56
- 12.3 OPERATING INSTRUCTIONS 56
- 13 EMC INFORMATION 58
- 14 Product Change History 60
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