Functional and electrical safety checks: Overview
8-2 Dash 3000/4000/5000 2000966-542D
Overview
Manufacturer recommendations
These safety tests and checkout procedures provide service personnel 
with a method to verify operational and functional performance of the 
patient monitor. Safety and functional checkout tests should be 
documented in the Checklist provided in “Checklist” on page D-1. Failure 
to attain any of the listed results indicates a potential malfunction of the 
patient monitor.
WARNING
The personnel assessing the safety of the patient monitor 
shall be able to recognize possible consequences and risks 
arising from non-conforming equipment.
The safety tests and checkout procedures are based on the assumption 
that the tested patient monitor has known good cables and test 
equipment. It also requires qualified personnel who are familiar with the 
operation of all test equipment required for the procedures. For more 
information concerning the operation of these components, refer to the 
respective operator manual(s).
Frequency
Qualified personnel must perform the checkout procedures:
 Every 12 months after receipt of the device (Preventive 
Maintenance). Refer to “Maintenance schedule” on page 5-2 for more 
information.
 Each time the main enclosure is disassembled or a circuit board is 
removed, tested, or replaced (Corrective Maintenance). Refer to 
“Recommended checkout” on page 7-52 for more information.
Test equipment
The safety tests and checkout procedures are written for the GE 
recommended test equipment listed for each test. If you use test 
equipment other than those GE recommends, you may need to slightly 
modify some test steps.