Installation; General Information - Emerson DIXELL MRLDS-450 Installing And Operating Instructions

3 Installation

IMPORTANT: The manufacturer of this product requires that a bump test or
calibration be performed following installation to verify instrument functionality.

3.1 General Information

Installation site selection is critical to ensuring system performance and effectiveness. Strict
compliance and considerable thought must be given to every detail of the installation process,
including, but not limited to the following:
● Regulations as well as local, state, and national codes that govern the installation of gas
monitoring equipment
● Electrical codes that govern the routing and connection of electrical power and signal
cables to gas monitoring equipment
● The full range of environmental conditions to which the instruments will be exposed
● The physical characteristics of the gas or vapor to be detected
● The specifics of the application (e.g., possible leaks, air movement/draft, etc.)
● The degree of accessibility required for maintenance purposes
● The types of optional equipment and accessories that will be used with the system
● Any limiting factors or regulations that would affect system performance or installations
● Wiring details, including:
● Secondary circuit must be supplied from an isolating source
● The wiring for the relays must be selected and fused according to the rated voltages,
currents, and environmental conditions
● If stranded conductors are used, a ferrule should be used
● To comply with RFI immunity regulations, it is necessary to ground the shield of the
communications cable at the PLC, GDA controller, front-end controller, or Building
Management System (e.g., the chassis, the ground bus-bar, etc.).
1592018550 MRLDS-450 GB r.1.2 29.05.2020
M16 Cable Glands
(4-8mm cable diameter)
M20 Cable Glands
(10-14mm cable diameter)
MRLDS-450
MRLDS-450
6
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