Fluke 5522A mveng0000 free download

File name 5522A___mveng0000.pdf

Instrument Security Procedures Model: Fluke 5522A Product Name: Multi-Product Calibrator Instrument Description: High Performance Multi-Product Calibrator Memory Description: The Fluke 5522A Multi-Product Calibrator contains two types of storage media. The first is a flash-based storage media and the second is random access memory (RAM). Flash Memory The flash memory used in the 5522A is a physically block structured device. It contains three (3) separate blocks. The first block is a special purpose block that holds a small boot loader. The boot loader software was designed and maintained by the Fluke Corporation and is preprogrammed into the flash device for us by the vendor. The boot loader flash memory cannot be easily changed or reconfigured without special programming equipment. This block is considered by Fluke to be permanent. If it were tampered with, or otherwise changed, by anyone other than a qualified software engineer equipped with supporting documentation from Fluke and external programming hardware, the calibrator would cease to function. The second block contains the application software for the 5522A. This block is programmed by Fluke but is otherwise subject to the same stringent restrictions as the boot code. Additionally, a checksum is generated and compared on power-up to insure that no changes to this code have occurred. The third block is logically partitioned by the software into two (2) mini-blocks. The first contains the calibration constants for the instrument. The second contains all nonvolatile configuration data for the instrument. Calibration Constants Calibration constants are double precision floating-point numbers. The instrument uses these numbers during normal operations to achieve its rated output accuracy. Each calibration constant (CCO) has a default value and a limit. Most limits are within a few percent of the default value. It's impossible to set a calibration constant to a number outside of its limit. Calibration constants cannot be accessed directly by a user. They can be changed during a calibration process. Theoretically, someone could run a calibration procedure and store numerically encoded data in the calibration constants. The limits on many of them would obviously complicate the process though. 5522A SOMV 1 of 3 5/19/2011 Non-Volatile Configuration Data Non-Volatile configuration data contains user settings like IEEE address, serial port configuration, calibration dates, etc. It also contains a string of a maximum of 64 characters. The string is an