Installation; Introduction; Sensor Module Locations - MSA SMC 5100-02-IT Operating Manual

3

Installation

WARNING!
A qualified electrician must do electrical wiring.
All wiring must comply with all applicable local electrical safety codes.
To prevent electrostatic discharge (ESD), connect an ESD wrist strap to the ESD connection point inside the device
enclosure before doing work inside the enclosure. ESD can cause damage to the device.
Do not touch the electronic circuit boards.
Do not install or operate a device that has damage.
Disconnect all power sources before opening the device enclosure. Failure to do so can result in electrical shock. Electrical
shock can cause damage to the device and injury to personnel.
Never operate the device without a protective ground. Operating the device without a protective ground can result in
electrical shock. Electrical shock can cause damage to the device and injury to personnel.
Failure to follow these warnings can result in serious personal injury or death.
3.1

Introduction

Although the IT Transmitter is designed and constructed for installation and operation in industrial applications including
"hostile" environments, caution should be taken to ensure that the installation is made in compliance with this instruction
manual and that certain procedures and conditions are avoided. Read the entire chapter prior to installation of the
equipment.
3.2

Sensor Module Locations

WARNING!
Avoid installing sensor modules where they will be unnecessarily exposed to wind, dust, water (i.e. direct hose down),
shock, or vibration. Observe temperature range limitations.
Sensors may be adversely affected by prolonged exposure to certain materials. Loss of sensitivity, or corrosion, may be
gradual if such materials are present in low concentrations. These materials include: Halides (compounds containing
chlorine, fluorine, bromine, iodine), acid vapors, caustic liquids or mists.
Care has been taken by the manufacturer to ship modules in protective packaging to avoid contamination prior to
installation. It is recommended that the modules remain protected during installation and that the covering be removed
immediately prior to system start-up.
During normal use the combustible sensors are protected from dirt and oil contamination by a sintered metal cover. If this
cover becomes clogged, the response of the sensor will be reduced. Protect the sensor from contamination by careful
placement, or by use of rain shields and dust shields.
Sensor modules must not be painted. Paint may contain compounds which will contaminate the sensor. Paint will cause
clogging of the sintered metal cover and will cause difficulties during attachment of the calibration head or other
maintenance activity. It is recommended that the module be tagged "DO NOT PAINT".
Failure to follow these warnings can result in serious personal injury or death.
NOTE: All IT modules are factory pre-configured and calibrated. All modules are tagged to indicate the
configuration including the sensor module number Identify all components during unpacking and install using
the factory configuration.
The gas sensor module utilizes a diffusion type sensor which should be located close to either the expected source or
destination of the gas hazard. If the gas is heavier than air, the sensor module should be installed within 24 inches of the
ground or floor. If it is lighter than air, move it above 6'.
US SMC 5100-02-IT Gas Sensor
3 Installation
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