GE H
EALTHCARE
D
IRECTION
5162630, R
EVISION
3
LOGIQ™ S6 S
ERVICE
M
ANUAL
Section 10-7 - Electrical Safety Tests
10-27
10-7-9-4 Meter Procedure Using Dale Meter to Measure Leakage Current
11.)Keep a record of the results with other hard copies of Planned Maintenance data.
CAUTION
Power off
Equipment damage possibility. Never switch the Polarity or the status of the Neutral when the
Ultrasound unit is powered on.
Power off the Ultrasound unit, allow the stored energy to bleed down, and turn the circuit
breaker off BEFORE switching the POLARITY switch and/or the NEUTRAL switch on the leakage
meter to avoid possible power supply damage.
Table 10-25 Typical Data Sheet For Probe Source Leakage Current
Probe Tested:
Unit Power
Tester Power Polarity
Switch
Tester NEUTRAL
Switch
Tester GROUND
Switch
Measurement
Start with System Powered OFF
OFF
NORMAL
OPEN
CLOSED
OFF
NORMAL
OPEN
OPEN
OFF
NORMAL
CLOSED
CLOSED
OFF
NORMAL
CLOSED
OPEN
Open Neutral first, then attempt Power ON
ON
NORMAL
OPEN
CLOSED
ON
NORMAL
OPEN
OPEN
Close Neutral. Power System ON, and wait until Probe under test is active, before continuing
ON
NORMAL
CLOSED
CLOSED
ON
NORMAL
CLOSED
OPEN
Power System OFF using the Shutdown pop-up.
Turn OFF System Circuit Breaker at rear of System or unplug from Meter outlet.
Switch Tester Power Polarity switch to Reversed, then turn System Breaker ON or plug power
cord into Meter outlet.
OFF
REVERSED
OPEN
CLOSED
OFF
REVERSED
OPEN
OPEN
OFF
REVERSED
CLOSED
CLOSED
OFF
REVERSED
CLOSED
OPEN
Open Neutral first, then attempt Power ON
ON
REVERSED
OPEN
CLOSED
ON
REVERSED
OPEN
OPEN
Close Neutral. Power System ON, and wait until Probe under test is active, before continuing
ON
REVERSED
CLOSED
CLOSED
ON
REVERSED
CLOSED
OPEN