Boonton 4540 Peak Power Meter User Manual - Manual (Page 38)

Boonton 4540 Series RF Power Meter
Getting Started 3-10
3.4 Initialize
The procedures presented in this section will initialize the 4540 Series and prepare it for operation. Steps 1 through 3 should
be performed every time you turn on the instrument. Step 4 only needs to be performed when you wish to return the
instrument operation to a known state. This usually occurs after turning the instrument on or at the beginning of a new test. If
you have completed Subsection 2.4 Preliminary Check, you may skip this section and continue to Subsection 3.6 Practice
Exercises.
STEP
PROCEDURE
If the main power is off, press the power switch located on the rear panel. See Figure 3-2. Press the PWR key. See
Figure 3-1. After a self-check, the instrument will execute the application program. A brief initialization screen will
appear, which shows the instrument name, model number, and software version. After several moments the main
measurement screen will appear. If it is necessary to change the sensor installed on the instrument, perform Steps 2,
3 and 4.
Caution
When selecting a sensor for an exercise or a measurement, be sure you know the power range of the sensor.
Extended operation beyond the sensor’s specified upper power limit may result in permanent change of
characteristics or burnout.
2. Connect the sensor to the sensor cable by aligning the red mark on each part and pressing the connectors together
firmly.
3. Connect the sensor cable to the Channel 1 input (holding the red mark UP).
When the sensor is connected, the instrument will download the factory installed calibration data from the sensor
memory. While the download is in process, the message ―CH 1 Sensor Data Loading‖ will appear on the display. If
the sensor is disconnected during the download, either the ―Sensor Data Error‖ or ―I2C Error‖ message will appear.
When this occurs, (press ESC) to clear the error; reconnect the sensor.
In general, when any sensor error message occurs, disconnect and reconnect the sensor and press ESC. If the
message persists, refer the problem to Boonton Electronics for technical support.
Note Initializing the instrument does not affect parameters selected for the GPIB Bus, Ethernet configuration, or
screen saver settings. It does not affect setups or calibrations.
4 . Press the Menu key to select the root menu. Initialize the settings by selecting Main > More > Setup > Defaults >
Load. This will load the operating parameters listed in Table 3-3. This table represents all the parameters that are
affected by initialization. This table lists the value or the option to which the function will be assigned after
initialization.