User manual
19
MC-III™ EXP Flow Analyzer Section 2
Section 2—Installation
The MC-III™ EXP is fully assembled at the time of shipment and ready for mounting to a owmeter. Field
wiring enters the MC-III EXP enclosure through either of two threaded conduit openings in the top of the
enclosure. When not in use, the openings are sealed with pipe plugs (Figure 2.1). Ground screws are provided
both inside and outside the enclosure.
The device is shipped with ¾” recessed pipe plugs installed facing right and left, and the pipe union facing
downward. If the device is equipped with an explosion-proof reset switch or a communications adapter, only
one plug is required. The switch may be installed in the right or left conduit opening.
Pipe plugs
Ground
screws
Figure 2.1—Enclosure entry and ground screw locations
Installation requirements and meter mounts vary with certication regulations and meter types. For ATEX
installation requirements, see Hazardous Area Installations (ATEX) below. For CSA installation requirements,
see Hazardous Area Installations (CSA), page 22.
Cameron recommends that operators congure the device prior to mounting if the instrument is to be installed
in a hazardous area. The enclosure must be opened to congure the device, either via keypad controls or via
software.
!
WARNING: Once the instrument is mounted in a hazardous area, the cover should not be re-
moved unless the area is void of combustible gas and vapors.
Hazardous Area Installations (ATEX)
The ATEX-certied MC-III EXP is fully compliant with European ATEX Directive 94/9/EC, Annex II,1.0.6.
The following instructions apply to equipment covered by certicate numbers 10ATEX1264X and IECEx
SIR10.0127X :
• The device may be used in the presence of ammable gases and vapours with apparatus groups IIA, lIB
and IIC and with temperature classes T1, T2, T3, T4, T5, and T6.
• The device is certied for use in ambient temperatures in the range -40°C to 70°C and should not be used
outside this range.