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IOM BiRotor 3” to 6” R03
Essential Instructions for Equipments To Be Used In Hazardous Lo-
cations, Including the European Union (Directive 94/9/EC)
Any Hazardous area approval applies to equipment
without cable glands. When mounting the fl ameproof
enclosure in a hazardous area only cable glands / con-
duit seals certifi ed to meet or exceed the rating of the
equipment should be used, refer to the type approval
documentation for further details. It is the end users
responsibility to ensure this happens.
Cable glands and cable must be suitable for the oper-
ating temperature of the device under its rated condi-
tions, this is especially important is the device has an
operating temperature above 1580F (700C).
The meter has been provided with an approved
sealing device in one of the cable entries, the other
entry has been closed with a plastic cap plug. It is the
end users responsibility to remove the cap plug and
replace it with a suitable cable gland or conduit seal
before the equipment is put into service.
It is the end users responsibility to ensure when the
instrument is located in a hazardous area that all
Cable glands and conduit seals must be installed in
accordance with the local codes and regulations.
It is the end users responsibility to ensure that before
opening an electronic enclosure in a fl ammable atmo-
sphere; all the electrical circuits must be interrupted.
If replacement of the screws which secure the sensor
housing, the UMB cover of the electronic register and
its cover are required, they must be replaced with
either factory direct parts or M6-1 x 16 (6g) mm hex
socket head screws of equal length. The screws must
be made from stainless steel grade A1-70 or A2-70
and be torqued to a value of 55 in lbs upon installa-
tion, its is the end users responsibility to ensure this
happens.
It is the end users responsibility to assess the max-
imum surface temperature of the device and the
equipment the device is attached to and located next
to as this may exceed the temperature ratings of the
device itself. If this happens, additional safety precau-
tions will need to be implemented by the end user.
Flame proof housings contain Aluminium; although
the composition of these enclosures is carefully main-
tained to prevent any risk of an ignition source it is
the end users responsibility to ensure that the hous-
ing is not struck by rusty tools or objects.
If the equipment is to be installed in an area where
dust deposits and build up are to be expected, a main-
tenance plan should be arranged to include regular
removal of the dust build up. This will prevent the
dusts forming a possible source of ignition.
The power supply requirements for this product are
specifi ed with in the operating and maintenance man-
ual, it is the end users responsibility to operate the
product with in these specifi ed limits.
The instrument contains surfaces that constitute
fl ames paths, these surfaces should not contain any
mars or scratches, if any are present the factory or
the local representative should be contacted imme-
diately to obtain a new housing as the safety of the
enclosure may be impaired. It is the end users re-
sponsibility to inspect these surfaces every time the
enclosure is opened.
When fl anged fl ame paths are re assembled the gap
between them should be less than 0.0015” (0.038
mm) such that a ½” (12.5mm) wide feeler 0.0015”
(0.038mm) gauge will not enter the gap more than
1/8” (3mm). It is the end users responsibility to ensure
this happens each time the enclosure is reassembled.
