Fluke 5522A Operators, Руководство оператора

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5522A
Operators Manual
11-20
How to Set Triggers
Press the SET TRIGS blue softkey. The SET TRIGS menu, shown below, appears in the
Control Display. The Post Trigger Delay is used to provide a variable-length delay after
the calibrator receives a *TRG command over the remote interface or manually from the
front panel.
nn342f.eps
Press either of the last two blue softkeys and the Control Display changes to the screen
shown below. This screen prompts the user for the new delay value. Enter the new value
and press the PREV MENU button to load the value. The trigger is now set. To activate
the trigger, press
O
.
nn364f.eps
Example
Assume a specified sag event with the following characteristics:
•
The Post Trigger Delay has been set to 3 seconds, which means the event will not
begin until 3 seconds after the trigger has occurred.
•
A nominal output voltage of 120 V @ 60 Hz has been entered
•
The ramp up period is set to 1.0 second
•
The event width is set to 5 seconds with a Delta (
Δ
) amplitude of -25 %
Assuming the calibrator is in Operate Mode and a *TRG command is received over the remote
interface, the calibrator will delay for 3 seconds and then begin ramping the output down, over a
1.0 second interval to 90 Volts. The output will remain at 90 Volts for 5 seconds after which it
will return immediately to the nominal value, in this case 120 V. If using the PQ from the front
panel, pushing
O
will trigger this event.
Delta (
Δ
) Amplitude, Single (Sags & Swells) Function
(Current)
Creating and editing waves for current outputs is similar to editing waves for voltage
outputs described previously.
Note
Before starting this section, refer to "Entering the PQ Modes " earlier in
this chapter.
Delta (
Δ
) Amplitude Mode (AMPS)
Press the
Δ
AMPL softkey to access the Delta (
Δ
) amplitude functions. From this mode
the Flicker and Sags/Swells functions are accessible.