Emerson Rosemount 6888A Quick Start Manual page 15

October 2022
1.2 Electrical installation
All wiring must conform to local and national codes. Multiple wiring
diagrams are shown in this section. Always refer to the diagrams that apply
to your transmitter configuration and disregard all other wiring diagrams.
WARNING
Electrical shock
Failure to install covers and ground leads could result in serious injury or
death.
Disconnect and lock out power before connecting the power supply.
Install all protective covers and ground leads after installation.
To meet the safety requirements of IEC 61010-1 (EC requirement) and
ensure safe operation of the equipment, connect the main electrical
power supply through a circuit breaker (minimum 10 A) which will
disconnect all current-carrying conductors during a fault situation.
This circuit breaker should also include a mechanically operated isolating
switch. If it does not, keep another external means of disconnecting the
power supply from the equipment located close by. Circuit breakers or
switches must comply with a recognized standard, such as IEC 947.
To maintain proper earth grounding, ensure that a positive connection
exists between the transmitter housing and earth. The connecting
ground wire must be 14 AWG minimum.
Line voltage, signal, and relay wiring should be rated for at least 221 °F
(105 °C)
1.2.1 Wire Rosemount 6888A Analyzer probe only (no Rosemount 6888Xi
Electronics)
The Rosemount 6888A Analyzer probe has electronics in the blue housing
that controls the heater temperature and also amplifies the raw O
signal to a linear 4-20 mA. You can run the 4-20 mA signal lines directly to
the control room and also power the analyzer electronics. There is no O
display or keypad on the probe, so you must set up the analyzer through
®
HART communications using a hand-held communicator or Asset
Management Solutions (AMS) software.
Procedure
1. Remove the cover from the probe.
Quick Start Guide
Quick Start Guide
milli-volt
2
2
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