Safety pre cau tions i, Pur pose and func tion 1, Di men sions and weight 1 – Bird Technologies 6730B Series User Manual

Page 9: Power and util ity re quirements 1, Purpose and function, Dimensions and weight, Power and utility requirements, Introduction

Chapter 1

Introduction

This instruction book is intended for use by operators of

the Models 6732B, 6734B, 6734B030, 6735-300A, 6736A,

6736-030A, 6737A, and 6737-030A Termaline Wattmeter.

This chapter contains introductory information including

product specifications, items supplied, and accessory items

available.

Purpose

and

Function

A Series 6730B Termaline Wattmeter is a portable direct

reading absorption wattmeter that both measures and

dissipates RF power. It is a self-contained unit that re-

quires no outside power source or additional equipment,

except for the Models 6737A and 6737-030A which must

have auxiliary water cooling. The load portion forms an

accurate, dependable and practically non-reflective 50

ohm termination for the adjustment, standby and testing

of transmitters under nonradiating conditions.

These Termaline Wattmeters can safely measure and ab-

sorb their maximum rated RF power. The low frequency

units will measure power to within ±5 percent of full

scale over the frequency band of 2 to 32 MHz. The rest of

their frequency range permits power measurement to ±10

percent of full scale. The high frequency units measure to

±5 percent of full scale from 25 to 512 MHz and ±10 per-

cent of full scale from 512 to 1000 MHz. Each meter has

three switch selectable scales and is housed separately

from the load.

Dimensions

and Weight

The dimensions of the individual loads are given in the

specifications on page 3. The meter housings are 5 9/16

inch W x 6 ½ inch H x 4 11/64 inch D (141 x 165 x 106

mm) for the Model 6735, 6736, and 6737 series and 3 7/8

inch W x 5 5/8 inch H x 3 7/8 inch D (98 x 143 x 98

mm) for the Model 6732 and 6734 series. The total

weight for each wattmeter is also given in the

specifications. The shipping weights will run approxi-

mately 20 percent higher.

Power and

Utility

Require-

ments

The Series 6730B Termaline Wattmeters require no exter-

nal source of electrical power other than the RF input

power for operation. The Models 6737A and 6737-030A

do, however, depend on a supplemental water supply for

cooling.