Mounting The Gas Detector; Warnings And Prerequisites; Mounting Locations; General Placement Guidelines - Emerson MRLDS-250 Installation And Operation Manual

2 Mounting the
Gas Detector
2.1. Warnings and
Prerequisites
WARNING: Explosion hazard! Do
not mount the MRLDS-250 in an
area that may contain flammable
liquids, vapors, or aerosols.
Operation of any electrical
equipment in such an environment constitutes
a safety hazard.
CAUTION: The MRLDS-250
contains sensitive electronic
components that can be easily
damaged. Do not touch or disturb
any of these components.
NOTE: The mounting location of
the monitor should allow it to be
easily accessible for visual
monitoring and servicing.
NOTE: The gas detector must be
connected to a marked, suitably
located and easily reached switch
or circuit breaker as means of
disconnection.
6 • MRLDS-250 Infrared Gas Detector I&O Manual
CAUTION: Connect monitor
power and signaling terminals
using wiring that complies with
local electrical codes or regulations
for the intended application.
CAUTION: Do NOT mount the
MRLDS-250 directly to vibrating
machinery as the vibrations may
degrade the gas detector's
performance.
2.2.

Mounting Locations

2.2.1. General Placement
Guidelines
NOTE: The MRLDS-250 should be
installed plumb and level and
securely fastened to a rigid
mounting surface.
NOTE: When installed in areas that
may be subjected to water spray, the
optional splash guard (P/N 603-
1100) should be used in
conjunction with the MRLDS-250.
Gas detectors must be located within the appropriate
wire lengths from the central controller (if used).
2.2.2.

Machinery Rooms

There is no absolute rule in determining the number of
gas detectors and their locations. However, a number
of simple guidelines can help in making a decision.
Gas detectors monitor a point as opposed to an area. If
the gas leak does not reach the detector, no alarm will
be triggered. Therefore, it is extremely important to
select the gas detector location carefully. Also
consider ease of access for maintenance.
026-1315 Rev 4