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M2540-92000-01 A M2540 Ultrasound System Field Service Manual Page 100
Performance Tests: Electrical Safety Tests
Figure 6-5 Transducer Leakage Current Test Diagram
➤ Transducer Leakage Current Test Procedure
1. Set the analyzer mode to test ECG leads.
2. Plug the analyzer into an available AC wall outlet. Plug the ultrasound system power plug into
the test receptacle on the analyzer.
3. Power up the ultrasound system by starting its internal PC.
4. Plug the transducer to be tested into the ultrasound system. Connect an ECG lead wire to
the appropriate jack on the analyzer.
LIMITS:
UL, IEC, and CSA:
7ASW027
Transducer
submerged in
saline
AC microammeter
I
(current)
500 microamperes Single Fault condition
I
= 100 microamperes Normal condition,
For
type transducers:
ECG
Ground wire:
Hot -
Powered on
Neutral -
System
under
test
Power cord connected to AC power.
(open neutral)
(open ground)
Green or Green/Yellow
Ground wire closed for Normal condition,
Neutral wire open (ground closed) for second Single Fault condition
Ground wire open for first Single Fault condition,
lead
wire
50 microamperes Single Fault condition
I
= 10 microamperes Normal condition,
For
type transducers: