Boonton 4540 Peak Power Meter User Manual - Manual (Page 43)

Boonton 4540 Series RF Power Meter
Getting Started 3-15
STEP PROCEDURE
1. Select the Calibration menu soft key. Initiate autocalibration by selecting AutoCal > Start. The AutoCal routine
will calibrate the entire dynamic range of the sensor in approximately 1.5 minutes while reporting status via a dialog
box.
Figure 3-4 Autocalibration screen.
Note You can access the calibration menus directly using the Cal/Zero key. Pressing the key
repeatedly will cycle between each channel’s calibration menu. The calibration menus are
presented in channel order for all active channels. Active channels are defined as those that
are installed, turned on, and have a sensor connected. If there are not active channels,
pressing the Cal/Zero key will bring you to the Channel 1 calibration menu.
2. If an error message appears after you have initiated AutoCal, verify the following:
a. Is the sensor that is connected to the calibrator also connected to the channel indicated in the Chan 1 >
Select menu?
b. Are the sensor cable connections secure at both the sensor and instrument input channels?
c. Does the instrument pass its self-test (no errors reported when you pressed PWR)?
d. Are any attenuators or other devices that are connected between the sensor and the calibrator?