2 general product information, 1 product overview, 2 fda 21 cfr part 11 compliance (hart only) – Hach-Lange SI792 C, SI792x C, SI792x C-FF, SI792x C-PA User Manual User Manual
Page 15: General information
General information
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2.2 General product information
2.2.1
Product overview
The si792 C and si792x C transmitters are used for measurement of
electrical conductivity and temperature in liquids. Fields of application
are: biotechnology, chemical industry, environment, food processing
and water/waste-water treatment.
The molded transmitter enclosure can be attached to a panel, wall, post
or pipe railing. The optional hood (see
provides protection against direct weather exposure and mechanical
damage.
Three communication options are available for the si792 transmitter:
•
4–20 mA/HART—si792 C and si792x C (noted as si792(x) C)
•
Foundation Fieldbus—si792x C-FF
•
Profibus PA—si792x C-PA
This user manual includes instructions for all three protocols.
Important Note: An ‘x’ in the model number is an indication of an
intrinsically safe (IS) instrument.
The instruments are programmed at the factory with different default
settings for the standard and the EU versions. The default settings
accommodate regional safety standards and can be changed by the
user. This user manual includes instructions for both versions. See
si792 transmitter versions on page 79
for a list of instrument
versions.
2.2.2
FDA 21 CFR part 11 compliance (HART only)
In the directive “Title 21 Code of Federal Regulations, 21 CFR Part 11,
Electronic Records; Electronic Signatures“ the US American health
agency FDA (Food and Drug Administration) regulates the production
and processing of electronic documents for pharmaceutical
development and production. The features described in