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Document no. M1144953-001
1 Planned maintenance instructions
1.1 Introduction
These instructions include procedures for planned maintenance (PM) for the Datex-Ohmeda 
S/5 Compact Anesthesia Monitor and S/5 Compact Critical Care Monitor. The Planned 
maintenance should be performed once a year.
These instructions include “Planned maintenance check form, S/5 Compact Monitors” to be filled 
in when performing the corresponding procedures.
The symbol 
" in the instructions means that the procedure performed should be signed in 
the check form.
The procedures should be performed in ascending order, bypassing those that are not 
applicable for a particular monitor. 
If you need further information on how to perform a certain Planned maintenance procedure, 
please refer to the corresponding slot in the Technical Reference Manual.
All menu selections related to the Datex-Ohmeda monitors are written in the following 
typeface:
e.g. Parameters - Gas Unit
As you enter the service menus, you need following passwords:
Monitor Setup - Install/Service (password 16-4-34) - Service (password 26-23-8)
In case you evaluate the measurement accuracy with a patient simulator, add the simulator’s 
accuracy specification to the one for the monitor.
WARNING Handle the water trap and its contents as you would any body fluid. 
Infectous hazard may be present.
CAUTION Failure on the part of all responsible individuals, hospitals or institutions, 
employing the use of this device, to implement the recommended 
maintenance schedule may cause equipment failure. The manufacturer does 
not, in any manner, assume the responsibility for performing the 
recommended maintenance schedule, unless an equipment maintenance 
agreement exists. The sole responsibility rests with the individuals, hospitals, or 
institutions utilizing the device.
CAUTION Only trained personnel with appropriate equipment should perform the tests 
and repairs outlined in this section. Unauthorized service may void warranty of 
the unit.
CAUTION Wear a static control wrist strap when handling PC boards. Electrostatic 
discharge may damage components on the board.