Specifications

INSTALLATION
3.3 Installation
WARNING: ELECTRICAL SHOCK HAZARD
Care should be taken if hazardous gases are to be measured or used for
calibration.
Refer to installation drawing supplied with the application data package.
3.3.1 Location
The µCEM is designed to be installed in an outdoor environmental location. It is highly
recommended that the analyzer be located out of direct sunlight and direct rain/snow to
the extent possible to assure longevity and accuracies.
The µCEM analysis enclosure should be installed as near as possible to the
probe/sample handling enclosure, in order to avoid low response time caused by long
sample gas lines.
The enclosure must be grounded to earth by the user or ground loops and computer
lockups are possible.
3.3.2 Limitations
Ambient Temperature: -30° to 50° Celsius (-34° to 122° F)
Relative Humidity: 5% to 99%
3.3.3 Mounting Options
Although the µCEM is enclosed in an environmentally sealed enclosure, it should be
protected from direct sunlight. In areas subjected to harsh winter climates, protection
should be provided from sun, rain and snow. A corrigated awning or other suitable
means can be provided to meet these conditions.
3.3.4 Electrical Connections
NOTE: The enclosure is a NEMA 4x. All entry locations must be sealed.
Connect all required signal cables to the connections at the bottom of the µCEM. The
cable locations are indicated on the inside bottom cover of the µCEM box. The actual
electrical connections will be specified in the Application Data package. All connections
are not necessary for every application.
Cable length for these signals should not exceed 3,000 feet (914 meters), to avoid
excessive capacitance and corresponding signal distortion.
All connections are made through the bottom of the µCEM enclosure using circular
connectors. Mating circular external connectors are provided by Rosemount with a 6’
wire harness pigtail for connections to J1, J3, J5, J6, J7 & J8.
Rosemount Analytical µCEM Continuous Analyzer Transmitter 3–1