GE Voluson P8 BT16, Basic Service Manual

Page: 599 / 612

GE DRAFT V
OLUSON
™ P8 / V
OLUSON
™ P6
DIRECTION 5723243, R
EVISION
6 DRAFT (M
AY
23, 2018) B
ASIC
S
ERVICE
M
ANUAL
Chapter 10 - Care & Maintenance 10-25
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.
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.
NOTE: Color of Power outlet cable
i) USA and Canada
Hot : Black
Tester Neutral Tester Polarity Switch
Measured Earth Leakage
Current
Enter Name of tested peripheral here
Closed Normal
Closed Reversed
Open Normal
Open Reversed
CAUTION
!! CAUTION:
Equipment damage possibility. Never switch the Polarity and the status of Neutral when the unit
is powered ON. Be sure to turn the unit power OFF before switching them using the POLARITY
switch and/or the NEUTRAL switch. Otherwise, the unit may be damaged.
Figure 10-5 Test Circuit for Measuring Leakage current between patient lead and Ground - Isolated