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Operation keys
The operation keys are used to display records, status, and set values on the LCD, as well as to
input or change set values. The function of each key is as follows:
c 0-9, −: Used to enter a selected number, numerical values and text strings.
d , : Used to move between lines displayed on a screen
Keys 2, 4, 6 and 8 marked with
,
,
and
are also used to enter text
strings.
e
CANCEL
: Used to cancel entries and return to the upper screen.
f
END
: Used to end entry operation, return to the upper screen or turn off the display.
g
ENTER
: Used to store or establish entries.
VIEW and RESET keys
Pressing
VIEW
key displays digest screens such as "Metering", "Latest fault" and "Auto-
supervision".
Pressing
RESET
key turns off the display.
Monitoring jacks
The two monitoring jacks A and B and their respective LEDs can be used when the test mode is
selected on the LCD screen. By selecting the signal to be observed from the "Signal List" and
setting it on the screen, the signal can be displayed on LED A or LED B, or transmitted to an
oscilloscope via a monitoring jack.
RS232C connector
The RS232C connector is a 9-way D-type connector for serial RS232C connection with a local
personal computer.