Emerson Rosemount 6888C Instruction Manual page 9

Instruction Manual
00809-0100-4891
1.2.6 Hazardous Area Rosemount 6888C direct replacement
(DR) probe with General Purpose Traditional
Architecture Rosemount 6888 Xi Electronics
Here there are no electronics inside the probe head, so the raw sensor signals for the
heater thermocouple and zirconium oxide O
6888 Xi Electronics. The Rosemount 6888 Traditional Architecture Electronics will also
directly apply power to the probe heater in order to maintain the correct sensor
temperature. This arrangement calls for a 7-conductor cable to carry this power and the
sensor signals. Maximum length for this cable is 200 feet. This probe will also operate on
previous Westinghouse/Rosemount electronics (World Class and Oxymitter), as well as
many competitive electronics.
WARNING
HAZARDOUS AREAS
Cables are supplied with Exd Rated Glands; the cable is not ExD rated, and installation in a
hazardous area is the responsibility of the installer/customer. Cables must be installed in
accordance with national and local electrical codes.
1.2.7 Wireless capability
Both the transmitter electronics in the head of the probe and the Rosemount 6888Xi
Electronics communicate over HART communications and can implement wireless
communications via Emerson Wireless 775 THUM
Instruction Manual
sensor are sent to a remote Rosemount
2
™
Adapter.
General information
July 2018
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