Agilent Technologies E6640A EXM Servisní příručka stáhnout pdf (Strana 21)

Quick-Start 1

Getting Started Guide 21

Certificates of Calibration

Customers receive 2 to 5 Certificates of Calibration (COCs) with the E6640A EXM test

set. The EXM is a scalable test set and can be purchased with 1 to 4 TRX modules. The

TRX modules, along with the Reference module (supplied with each E6640A), are the

only items that require calibration, and therefore they are the only items supplied with a

CoC and calibration sticker at shipment.

Each E6640A test set is shipped with a yellow envelope which contains your calibration

certificates; this envelope is labeled (lower right corner) with a sticker identifying the

unit model number (E6640A) and serial number. Inside each envelope will be from two

to five CoCs: one for the reference module, and one for each of the TRX modules

installed in the test set. This package constitutes your test set’s calibration data.

You may choose to physically attach calibration stickers to your E6640A test set

(recommended), or, as many customers do, you may choose to use the modules’

electronic calibration information to identify the calibration status of any module at any

time. The use of electronic calibration information is of benefit to those customers that

may want to move modules from one instrument to another: the calibration date always

follows the module.

To summarize: calibration of the E6640A is not done at the instrument level, but an

E6640A is fully calibrated when all of the modules (Reference module and TRX

modules) are calibrated. At initial shipment, this information is provided in the yellow

envelope supplied with each unit.

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Agilent Technologies E6640A EXM Servisní příručka Strana 21