Fluke Biomedical DALE601 - Manual (Page 31)

Operation
Measuring Device Current
2
2-7
4. Check the value under load against the DUT ratings to be sure that the
actual value remains within prescribed limits.
Measuring Device Current
Device Current (I
L
) (instrument current) is that used by the DUT. When
powered on, the DUT should be operated in its various modes to determine the
worst condition to track. Verify that the DUT current is within the current
rating of the Analyzer being used.
Measurement is made in the HOT wire via transformer coupling to ensure that
the total current is measured, because it is possible that the NEUTRAL and
GROUND wires share the return path
To measure device current.
1. Set the FUNCTION switch to CURRENT AMPS .
MAI N S V OLTAGE
CURRE N T AMPS
EARTH RESISTA N CE
EARTH LEAKAGE
E N CLOSURE LEAKAGE
PATIE N T LEAD LEAKAGE
PATIE N T AUX CURRE N T
M.A.P.
EXTER N AL
fcu04.eps
The Analyzer displays the DUT current to 19.99 A.
2. Set the OUTLET switch to NORMAL and L2 to CLOSED .
3. POWER ON the DUT and place it in its maximum load condition to
obtain the proper reading.
4. Log this data and note changes in values to help detect problems early.