Ultima MOS-5 Detector
10
3.4 Mounting and Wiring
WARNING:
Unused cable entry holes must be sealed with an approved explosion-proof plug.
Red caps supplied by MSA are for dust protection only and must not be left on the
unit when installed.
WARNING:
Conduits must be sealed within 18 inches of the enclosure.
The outline and mounting dimensions for the Ultima MOS-5 Intelligent Sensor (Figure 5) should
be used when making installation determinations. A complete list of the mechanical
specifications can be found in Section 9.3.2.
To prevent possible corrosion due to moisture or condensation, the conduit connected to the
Ultima MOS-5 Intelligent Sensor housing should be sealed or contain a drain loop.
NOTE:
For ATEX and IECEx applications, conduit connections must only be made via suitably
certified ATEX (or IECEx as appropriate) conduit stopping boxes.
Information on Class I Division 1 and Zone 1 wiring methods can be found in the NEC or CEC.
Figure 5: Ultima MOS-5 Intelligent Sensor Outline and Mounting Dimensions, in inches
WARNING:
Acetic acid will cause damage to metal components, metal hardware, ceramic
IC’s and other parts. If damage results from the use of a sealant that outgases
acetic acid (RTV silicone), the warranty will be void.
Once correctly installed, the Ultima MOS-5 Intelligent Sensor requires little or no maintenance,
other than periodic calibration checks to ensure system integrity. MSA recommends that a
schedule be established and followed.
