Emerson Process Management Bristol Series 9110 - Manual (Page 41)

CI-9110 5-1 Service
Chapter 5
SERVICE
5.1 GENERAL
The servicing and calibration procedures described in this section should only be performed
by qualified technical personnel.
These procedures should not be performed while the Remote Set Regulator is connected to
an on-line process. A laboratory setup is recommended for calibration and servicing. If this
is not possible, steps should be taken to close down the process or to isolate the Regulator in
such a manner that it has no control over the process.
** Warning **
Models intended for operation in hazardous areas require
additional precautions. Under no circumstances should
the cover be removed while the instrument is powered and
operating. If access is required, either the dc power must
be turned off, or the environment must be made safe, i.e.,
non-hazardous. An electrical spark in a hazardous en-
vironment could cause fire or an explosion and result in
property damage and injury to persons.
Figure 5-1 - Rear View of Gear Drive Assembly