Page 172 SLG 700 SmartLine Level Transmitter User’s Manual Revision 8
9.5 Conditions of Use for Ex Equipment, “Hazardous Location
Equipment” or "Schedule of Limitations"
Consult the manufacturer for dimensional information on the flameproof joints for repair.
Painted surface of the SLG transmitter may store electrostatic charge and become a source of
ignition in applications with relative humidity less than 30% where the painted surface is
relatively free of surface contamination such as dirt, dust or oil. Cleaning of the painted
surface should only be done with a damp cloth.
Flame-proof Installations: The Transmitter can installed in the boundary wall between an
area of EPL Ga/ Class I Zone 0/ Category 1 and the less hazardous area, EPL Gb/ Class I
Zone 1/ Category 2. In this configuration, the process connection is installed in EPL Ga/ Class
I Zone 0/ Category 1, while the transmitter housing is located in EPL Gb/ Class I Zone 1/
Category 2.
Intrinsically Safe: Must be installed per drawing 50098941. See Control Drawing.
Division 2: This equipment is suitable for use in a Class I, Division 2, Groups A, B, C, D; T4
or Non-Hazardous Locations Only.
The enclosure is manufactured from low copper aluminum alloy. In rare cases, ignition
sources due to impact and friction sparks could occur. This shall be considered during
Installation, particularly if equipment is installed a Zone 0 location.
If a charge-generating mechanism is present, the exposed metallic part on the enclosure is
capable of storing a level of electrostatic that could become incendive for IIC gases.
Therefore, the user/ installer shall implement precautions to prevent the buildup of
electrostatic charge, i.e. earthing the metallic part. This is particularly important if equipment
is installed a Zone 0 location.
For FM approved transmitters, the Zone 2 installation with probe in Zone 0 is allowed for the
remote version only.
Maximum Power Supply Source Voltage Um
The maximum voltage (Um) for the non-intrinsically safe circuits is 250VAC 47Hz-63Hz or
250VDC.
Warnings and cautions
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