GE Corometrics 250 Series Service Manual page 139

Page
Cleaning
4-5 Clean the monitor exterior.
Clean the monitor interior using a hand-held
vacuum.
4-8 Clean the recorder printhead.
4-8 Clean the UA Strain Gauge.
Clean the monitor accessories (TOCO,
4-6
transducers, cables)
4-5 Clean the monitor accessories (cuffs, hoses)
Calibration
Page
Verify the power supply voltages on the Main
4-53
Board.
Verify the power supply voltages on the Isolated
4-54
Power Supply Board.
5-9 Adjust the printhead.
4-55 Adjust the photosensors on the Recorder Board.
Electrical Safety Tests
Page
4-10 AC Line (120 V
↑
Ground Impedance (<300 MΩ)
4-10
Lead to rear panel ground lug (<300 MΩ)
Lead to top cover bezel screw (<300 MΩ)
4-10 Unit to primary leakage
4-11 Patient-to-Ground leakage for ECG
4-12 Patient-to-Line leakage for ECG
4-12 Patient-to-Ground leakage for IUP
4-13 Patient-to-line leakage for IUP
Patient-to-Ground leakage for MSpO
4-13
Patient-to-Line leakage for MSpO
4-14
4-14 Patient-to-Ground leakage for US
Revision D
Maintenance: Preventative Maintenance Inspection Report
Description
Description
Description
10%)
2
2
250 Series Maternal/Fetal Monitor
2020551-001
Complete Max
Complete Max
Complete Max
(<300 mW)
(<300 mW)
mA)
(<300
( 50mA)
<
( 50mA)
<
( 50mA)
<
( 50mA)
<
( 50mA)
<
( 50mA)
<
( 50mA)
<
Actual Pass Fail N/A
Actual Pass Fail N/A
Actual Pass Fail N/A
4-59