GE Voluson P8 BT16 Basic Service Manual page 599

GE DRAFT
DIRECTION 5723243, R
Table 10-24 Typical Data Sheet for Earth Leakage Current
10-8-7 Type CF Patient Leakage Current Test - ECG Leads
10-8-7-1 Definition
This test measures the current which would flow to ground from any of the isolated ECG leads. The
meter simulates a patient who is connected to the ECG equipment and is grounded by touching some
other grounded surface. Measurements should be made with the ground open and closed, with power
line polarity normal and reversed, and with the neutral open and closed. For each combination, the
operating controls, such as the lead switch, should be operated to find the worst case condition.
Equipment damage possibility. Never switch the Polarity and the status of Neutral when the unit
CAUTION
is powered ON. Be sure to turn the unit power OFF before switching them using the POLARITY
!! CAUTION:
switch and/or the NEUTRAL switch. Otherwise, the unit may be damaged.
10-8-7-2 Generic Procedure
Measurements should be made with the ground open and closed, with power line polarity normal and
reversed, and with the neutral open and closed. For each combination, the operating controls, such as
the lead switch, should be operated to find the worst case condition.
Figure 10-5 Test Circuit for Measuring Leakage current between patient lead and Ground - Isolated
NOTE: Color of Power outlet cable
i) USA and Canada
Hot : Black
6 DRAFT (M
EVISION
Tester Neutral
Enter Name of tested peripheral here
Closed
Closed
Open
Open
Chapter 10 - Care & Maintenance
23, 2018)
AY
Tester Polarity Switch
Normal
Reversed
Normal
Reversed
V ™ P8 / V
OLUSON
B S
ASIC ERVICE
Measured Earth Leakage
Current
™ P6
OLUSON
M
ANUAL
10-25