Fairbanks 2800 Series Intrinsically Safe Instrument - Manual (Page 7)

01/12 7 50647 Rev. 9
Section 1: General Information
1.1. DESCRIPTION
The model 2800 series is an Intrinsically Safe instrument utilizing Intalogix ™
Technology. It is Factory Mutual (FM) Approved for direct use in hazardous
environments as shown in the FM Approved Control Drawings.
The 2800 series instrument eliminates the need for explosion proof enclosures or
purging systems. Enclosed in a stainless steel, NEMA 4X enclosure, the
instrument is able to withstand both wash down and corrosive environments.
Major features of the Instrument include push-button programming and calibration,
with data storage in nonvolatile ROM for 100% memory retention.
The 2800 series instrument features a large 1.25 inch high LCD weight display
with an additional alphanumeric status display, which can be tilted up or down to
accommodate different lighting conditions. Its microprocessor controlled design
allows the instrument to be rapidly programmed at installation to meet the specific
requirements of the application.
The obtainable accuracy meets Handbook 44 requirements, and the instrument is
approved for commercial application up to 10,000 divisions. A maximum of
30,000 divisions can be achieved for non-commercial applications.
This ultra-low power instrument can interface to analog load cells through an
Intalogix™ intrinsically safe controller or can be connected directly to analog load
cells using an available optional accessory.
The instrument provides fiber optic interfaces from the hazardous area to the
optional accessories located in a safe area. The optional accessories provide
communications to various types of peripheral devices in selectable formats for
RS232, and 20mA data outputs. Other available options include analog interfaces
through programmable setpoints and 4-20 ma analog outputs. The instrument may
be powered by a battery or a continuous power accessory.