Front Panel Operation
Introduction
4
4-3
4-1. Introduction
Warning
The 5500A Calibrator is capable of supplying lethal voltages.
Do not make connections to the output terminals when any
voltage is present. Placing the instrument in standby may not
be enough to avoid shock hazard, since the operate key could
be pressed accidentally. Press the reset key and verify that the
5500A Calibrator is in standby before making connections to
the output terminals.
This chapter presents instructions for operating the 5500A Calibrator from the front
panel. For a description of front panel controls, displays, and terminals, see Chapter 3,
“Features.”
4-2. Turning on the Calibrator
Warning
To avoid electric shock, make sure the 5500A Calibrator is
safely grounded as described in Chapter 2.
W Caution
Before turning the 5500A Calibrator on, make sure that the line
voltage selection is set properly. Refer to “Selecting Line
Voltage” in Chapter 2 to check the line voltage setting.
When the 5500A Calibrator is powered, the initial display is “Starting Up...” (see below)
and it completes a self-test routine. If a self-test fails, the Control Display identifies an
error code. For a description of error codes, see Chapter 7, “Maintenance.”
Starting up...
After self-test, the Control Display shows the reset condition (below).
330 mV
auto
auto
locked
For a discussion of the softkey selection shown above (auto/locked), see “Auto Range
Versus Locked Range” later in this chapter.
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