AN2299

Fast digital calibration procedure

Rev2

11/26

3

Fast digital calibration procedure

The following paragraphs describe the important items of fast digital calibration procedure.

3.1

System description

The fast digital calibration system is composed by the following parts:

While the following parts are optional:

Figure 3.

Fast digital calibration system. The equipments marked by (*) are optional

Often the Calibration Process Controller (CPC) is implemented with a Personal Computer

(PC) which runs calibration software. The PC should have enough RS232C ports in order to

communicate with other calibration system units.

Table 1.

Calibration equipment

Item

Description

CPC

Calibration Process Controller

Interface

serial communication to energy meter under calibration

EM

energy meter under calibration

Gen

line voltage and current reference generators

Table 2.

Optional calibration equipment

Item

Description

M1, M2

line voltage and current RMS meters

EMp

precision energy meter