Operating as an rf wattmeter, Shutting down, Operating as an rf wattmeter shutting down – Bird Technologies 8740 Series User Manual

Page 18

Operating Instructions

Operating as an RF Wattmeter

The RF load can be combined with a Bird Rigid Line Series Thruline Wattme-
ter to form an absorption-type wattmeter by inserting the wattmeter line sec-
tion just ahead of the RF load. Installation and operation of the wattmeter is
covered in the Thruline Wattmeter Instruction Book.

Note:

Select a wattmeter type appropriate to the input connector of

the load resistor. Consult the Bird Catalog or contact the Company.

1. Perform the the same functions as a Load Resistor. See “Operation as a

Load Resistor” on page 7.

2. Rotate the element in the line section element socket to monitor incident

or reflected power.

Note:

Measurement is taken in the direction indicated by the

arrow on the element.

Shutting Down

1. Turn off the RF power to the load.
2. Wait at least one minute to allow the resistor substrate time to cool.
3. Turn the interlock and AC power off.
4. Turn off the water supply - always do this last.