Novametrix Medical Systems MARS PO2 TECH 2001, Руководство по обслуживанию

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Safety Testing
Section 7
Electronic Tests
Rev. 01 Model 2001 Service Manual
33
29. Release the Infrared Open button. Verify the error message clears and a saturation and pulse
value are displayed.
30. Disconnect the TB500B from the saturation input connector. Verify a “Connect SPO2 Sensor”
message is displayed.
31. Connect the current limit test fixture to the saturation input connector. Verify the LED is on.
32. Press the switch on the current limit test fixture. Verify the LED turns off .
33. Disconnect the current limit test fixture.
34. Set the current time / date. Press and hold the Menu softkey. Press the Next softkey until
“Monitor Options 2” appears. Press the Clock softkey. Use the appropriate softkeys to set the
correct Time, Mins, Day, Month and Year. Press the Set softkey when done.
35. Set the mains switch from“|” to “O”, verify the green LED on the front panel goes out and a
battery icon is displayed in the lower right corner of the SPO2 display. Verify the monitor
continues to function on battery power without interruption. Power down the monitor by
pressing the power button.
Safety Testing
Complete the assembly of the monitor before performing the safety testing.
1. Apply 1.5 KV for 60 seconds between the shorted hot and neutral leads of the power cord and
chassis ground.
2. Apply 4 KV for 60 seconds between the shorted hot and neutral leads of the power cord and
shorted saturation test jack.
3. Apply 1.5 KV for 60 seconds between the shorted saturation test jack and the chassis.
4. Measure the leakage from chassis ground to ref. ground with the monitor;
-grounded
-ungrounded
-polarities reversed ungrounded
-grounded measured from shorted probe input to 120VAC 60Hz.
5. Verify the leakage current for any of the above tests does not exceed 25ua.