Keysight N1913, Service Manual

Page: 22 / 141

1 Specifications and Characteristics
22 Keysight N1913/1914A Service Guide
Introduction
This chapter details the EPM Series Power Meters specifications and
supplemental characteristics.
Specification definitions
There are two types of product specifications:
– Warranted specifications
– Characteristic specifications
Warranted specifications
Warranted specifications are covered by the product warranty and apply after a 30
minutes warm- up. These specifications are valid over the power meter’s
operating and environmental range unless otherwise stated and after performing
a zero and calibration.
Characteristic specifications
Supplemental characteristics which are shown in italics are intended to provide
information useful in applying the power meter by giving typical, but
non-warranted performance parameters. These characteristics are shown in
italics or denoted as “typical”, “nominal” , or “approximate” .
Characteristic information is representative of the product. In many cases, it may
also be supplemental to a warranted specification. Characteristic specifications
are not verified on all power meters. The types of characteristic specifications can
be placed in two groups:
– The first group of characteristic types describes 'attributes' common to all
products of a given model or option.
Examples of characteristics that describe 'attributes' are product weight, and
50 Ω input N-type connector. In these examples, product weight is an
approximate value and a 50 Ω input is nominal . These two terms are most
widely used when describing a product's 'attributes'.
– The second group of characteristic types describes 'statistically' the aggregate
performance of the population of products.