2150EX AV Flow Module - Isco

2150EX Area Velocity Flow System
Safety Information
Designed for safety
Labels
Installation should be completed with adherence to local requirements
for ATEX Group II, Category 1G or 2G equipment as
appropriate, and should be done by trained and qualified personnel.
The purpose of intrinsic safety is to limit the energy available to
a given circuit or device to a level where electrical discharge
(sparking) cannot ignite the hazardous (flammable or explosive)
atmosphere. With no spark ignition possible, safe operation of
the equipment in areas with hazardous atmospheres is possible.
The durable 2150EX, 2191EX, 2196EX, and 2194EX enclosures
are made with ABS plastic embedded with conductive carbon
fiber, giving the units low surface resistance to minimize electrostatic
energy.
The lithium thionyl chloride batteries and the lead acid batteries
used in the 2191EX Battery Module operate at a low voltage and
are contained in sealed battery packs.
The 2150EX system has been designed so that it does not cause
physical injury or other harm due to contact. It does not produce
excessive surface temperature or dangerous radiation. When
used properly, it does not present any non-electrical dangers.
Read all labels carefully before installing the equipment!
The 2150EX and its components are clearly labeled with color
and/or text so you know what can be located in a safe or hazardous
area (see figure below). For example, on the label shown
below, light blue is used to indicate the intrinsically safe end and
yellow to indicate the non-protected end of the cable and connector.
Example of Safe and Hazardous Area Labeling on RS232EX Cable
Some system components have an X marking, as shown in the
example on the following page. The X marking indicates that
there are special conditions that must be met to ensure intrinsic
safety. In the case of the sensor cable, there is a danger of static
electricity. The cable is labeled with a warning telling you that
you should not rub the sensor with a dry cloth, as this might generate
static electricity.
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