Boonton 4540 Peak Power Meter Quick Start - Manual (Page 16)

PN: 98406000A
2. Select Calibrator: Internal
4540 OPERATION
CALIBRATION
Power sensors require calibration before they can be used. Calibration ensures most
accurate power measurements. The 4540 Power Meter reminds users when sensor
calibration is due. This can happen if it has not yet performed or after a period of
time in which temperature changes may have occurred.
The 4540 comes with a built in calibrator but also allows for utilizing an
external calibrator. To prepare for the internal calibrator, ensure that the
following settings are selected.
1. Choose the Calibration menu by pressing the [Cal] button.
3. Select: Cal Output: On