Megger SR-98, Инструкция по эксплуатации

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6. Read and record the Pick-up current. Return the current to zero. Turn off the
AC
CURRENT MAIN
by pressing the
MODE SELECT
button (changes the output to
Momentary Operation). Repeat the test for the other Restraint Element(s).
Timing Test:
Connect the appropriate
AC CURRENT MAIN
output terminals to the relay terminals so
that the test current will energize one Restraint Coil (Element) and the Current
Operating Coil (Element).
Preset Fault Current:
5. Pressing
the
MODE SELECT
button, change from
MAINT
(Maintain) to
MOM.
(Momentary)
6. Press
the
INIT
Button. The output current should turn on for a short pulse
duration. If the current was returned to zero in step 4, the current displayed
should be approximately zero.
7.
Rotate the Control Knob and press the
INIT
Button. A new current value is
displayed. Continue until the desired current value is achieved.
8. Pressing
the
MODE SELECT
button twice to change from
MOM.
(Momentary) to
CA.
(Current Actuate) to
MAINT
(Maintain). The current value selected in
Momentary mode will be remembered.
9. Press
the
TIMER SETUP
Button. The following screen should be displayed.
See
TIMER SETUP
Screen description for desired setting changes. Settings for a
typical normally open contact timing test are as follows,
10.
Select Start Option to
INITIATE
.
11.
Select Stop Option to
N. OPEN
(Normally Open).
12.
Select Start and Stop Latch
ON
.