5500A
Operator Manual
4-8
4. Press the S key, opening the setup menu (below).
CAL INSTMT
SETUP
UTILITY
FUNCTNSSPECS
SHOW
5. Press the CAL softkey, opening the calibration information menu (below).
CAL CAL
DATES
CAL
REPORTS
6. Press the CAL softkey, opening the calibration activity menu (below).
ZERO ERR ACT
backup
CAL
5500A OHMS
ZERO
7. Press the ZERO softkey to totally zero the 5500A Calibrator; press the OHMS
ZERO softkey to zero only the ohms function. After the zeroing routine is complete
(several minutes), press the R key to reset the calibrator.
4-12. Using the Operate and Standby Modes
When the OPERATE annunciator is lit and OPR is displayed, the output value and
function shown on the Output Display is active at the selected terminals. When STBY is
displayed in the Output Display, all calibrator outputs are open-circuited except for the
front panel thermocouple (TC) terminals. To enable the operate mode, press O. To
place the calibrator in standby, press Y.
If the calibrator is operating and any of the following events occur, the calibrator
automatically goes into the standby mode:
• The R key is pressed.
• A voltage ≥33 V is selected when the previous output voltage was less than 33 V.
• Output function is changed between ac or dc voltage when the output voltage is
≥33 V; ac or dc current; temperature and any other function; resistance and any other
function; capacitance and any other function.
• A peak-to-peak voltage output (squarewave, trianglewave, or truncated sinewave)
changes to rms voltage output ≥33 V (sinewave). For example, if a peak-to-peak
output of 40 V is changed to rms output of 40 V by changing the waveform using the
WAVE softkey, the calibrator goes into the standby mode.
• The output location is changed, for example by selecting an amplifier. (Excluding
selecting the 5725A for ac voltage, or for current if the 5500A current output
location is set to 5725A.)
• An overload condition is detected.
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