Fluke 522A/6, Руководство оператора

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Features
Softkey Menu Trees
3
3-5
in the lower left corner of the Output Display. In standby mode, the NORMAL , AUX and 20A output
terminals are internally disconnected from the 5522A. The 5522A starts up in standby mode. The
5522A automatically switches to standby if one of the following occurs:
The RESET key is pressed.
A voltage
≥
33 V is selected when the previous output voltage was less than 33 V.
Output function is changed, except when going between ac or dc voltage
<
33 V.
A current output above 3 A is selected. This is when the output location changes to the 20A
terminal.
An overload condition is detected.

O
The OPR (Operate) key places the 5522A in operate mode. Operate mode is indicated by “OPR” in
the lower left corner of the Output Display and the lit indicator on the OPR key.

Z
The EARTH (Earth Ground) key opens and closes an internal connection between the NORMAL LO
terminal and earth ground. An indicator on the key indicates when this connection is made. The
power-up default condition is earth disabled (indicator off).

a
The SCOPE (Oscilloscope) key activates or deactivates an oscilloscope calibration option if it is
installed. An indicator on the key indicates when the option is activated. If an oscilloscope calibration
option is not installed in the calibrator and the
SCOPE key is pressed, the calibrator displays an
error message.

B
The EXGRD (External Guard) key opens and closes an internal connection between the internal
NORMAL LO signal ground and the internal guard shield. An indicator on the key indicates when
this connection is made. The power-up default condition is external guard disabled (indicator off)

P
The PREV MENU (Previous Menu) key recalls the previous set of menu choices. Each press of this
key backs up one level of the menu tree until the display indicates the top level menu selection of
the function selected.

Softkeys
The functions of the five unlabeled blue softkeys are identified by labels on the Control Display
directly above each key. The functions change during operation so that many different functions are
accessible through these keys. A group of softkey labels is called a menu. A group of interconnected
menus is called a menu tree.