Maintenance of the SDMS
During normal use, the SDM does not require any internal
adjustments or additional calibrations. However, to guarantee
continuous performance, reliability and safety of the SDMS,
routine checks and maintenance procedures (including
cleaning/disinfection) as well as safety and functionality checks
should be performed regularly.
The Technical Manual for the SenTec Digital Monitor (SDM)
provides instructions for cleaning and/or disinfecting the SDM
and the Digital Sensor Adapter Cable. Please refer to the
respective Directions for Use for instructions for cleaning and/
or disinfecting SenTec TC Sensors.
Routine Checks
The following checks should be performed regularly:
• Before and after every use check the SenTec TC Sensors
(p. 15).
• Weekly clean and disinfect SenTec TC Sensors and the Digital
Sensor Adapter Cable.
• ‘Power On Self Test’ (POST): Every time the SDM is switched
on (p. 12), the POST is performed automatically. If your
SDM is permanently switched on, switch it off and on again
once a month to perform a POST.
• Weekly clean the Docking Station gasket using a cotton
swab moistened with 70% isopropanol (for other approved
cleaning agents refer to the Technical Manual for the SDM).
• Monthly inspect the Docking Station Door and gasket for
mechanical and functional damages.
• Monthly check the SDM, sensors, sensor adapter cables and
power cord for mechanical or functional damages. Defective
parts must be replaced by original replacement parts.
• Monthly perform a ‘Sensitivity Test’ PCO
2
/PO
2
(can be activated
in the menus ‘PCO
2
Settings’ or ‘PO
2
Settings’).
• Monthly check the sensor temperature by comparing the
displayed sensor temperature to the sensor SET Temperature.
• Monthly check the barometer reading of the SDM against a
calibrated barometer.
• Monthly check the alarm function of the SDM and correct
functioning of its interfaces (if used).
Refer to the Service Manual for the SDMS and the Directions
for Use for the sensors for additional/complete check lists and
detailed maintenance procedures.
Note: Check the disposables monthly and replace any expired
products.
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