Nellcor N-180 Service Manual page 83

SAFETY TESTS
Ground Integrity
Electrical Leakage
Section 7: Performance and Safety Tests
Switch position
Baud rate Switch 7 Switch 8
2400 Down Up
4800 Down Down
9600 Up Down
19,200 Up Up
8. Set monitor to conversation format by setting DIP switch two up.
9. At your test computer:
a. Start communication port control software.
b. Set communication software to agree with baud rate you set at
monitor.
с. Once communication is established, type letter S.
The following safety tests are reguired:
Ground integrity
* Electrical leakage
This test verifies the integrity of the power cord ground wire from the AC
plug and connection with the monitor chassis ground.
4. Verify analyzer indicates 0.150 (150 milliohms) or less.
Chassis source current
Patient source current
* Patient sink current
Chassis Source Current