FRONT AND REAR PANELS
14
5. LINE:
Use this key to activate the NEUTRAL, REVERSE, and GROUND relays to
set up the steps within each memory for the single fault and normal conditions.
6. MD CIRCUIT:
Use this key to select the Measuring Device (MD) circuit A through
F to simulate different body impedances. This setting will vary depending upon the
standard to which the product is being tested. The Line Leakage Tester has 5 internal
MD circuits A-E which are shown below and 1 external measuring device which can
be added if a new requirement is needed.
MD = A
UL 544 MEDICAL EQUIPMENT
Non patient equipment.
MD = B
UL 544 MEDICAL EQUIPMENT
Patient care equipment.
MD = C
IEC 601-1, UL 2601, EN 60601-1,
MEDICAL EQUIPMENT
MD = D
UL 1563 Electric Spas,
Equipment Assemblies and
Associated Equipment
MD = E
IEC 1010, UL 3101, IEC 950, UL 1950, EN 60950 LABORATORY EQUIPMENT,
INFORMATION TECHNOLOGY
7. DELAY:
Use this key to program the delay time for making the leakage
measurement for each step.
8. PROBE:
Use this key to select the location of the MD circuit for the type of test being
performed. G-L indicates the MD is connected to measure the leakage current in the
earth ground conductor in the line cord back to the system neutral, an EARTH
LEAKAGE TEST. P
H
-
L indicates the MD is connected between the PROBE-HIGH (P
H
)
terminal # 27 on the instrument which should be connected to the ENCLOSURE of the
DUT through the system neutral, an ENCLOSURE LEAKAGE TEST. P
H
-P
L
indicates
the MD is connected between the P
H
and the PROBE-LO (P
L
) terminal # 26 on the
instrument which allow the operator to connect the MD between APPLIED PARTS.
9. CONNECT:
Use this key to sequence one step to the next step. The display will
indicate M1-1_. The underbar indicates that step 1 is connected to step 2.
10. DATA ENTRY KEYS:
Use these keys to input numeric parameters followed by the
ENTER key. Also used to recall test parameters stored in memory 0-9.
11. STEP:
Use this key to select one of the 8 locations contained within each memory.
The step button will cycle through the steps as indicated on the display in the Set
Screen. M1-1, M1-2, M1-3, etc.
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