EATON
Installation & Maintenance Instructions
IMI+70-XF-XC-XP-XT Issue 7
© 2016, Eaton
Page 20 of 21
A. Ex Annexe
Special Conditions of certification
(a) Specific Conditions for Safe Use.
1. No modifications must be made to the flamepaths of the unit without consultation of the
drawings listed on the schedule.
2. Temperatures could exceed 70°C at the cable gland or 80°C at the branching point, suitably
rated cable must be selected.
3. Use only hex socket head fasteners with property class of A4-70 for securing end covers &
shafts to housings.
4. When fitted, the optical fibre output from the camera must always be terminated within a
suitably certified enclosures or safe area..
5. Only armoured cable or conduit is to be utilized when fitted with a fibre optic output in order
to protect the fibre optic cable.
6. Precautions must be taken to avoid dust from forming layers on the equipment.
7. Antennas used with the equipment shall be passive with nominal impedance of 50Ω and have a
minimum degree of protection IP6X. If the antenna utilizes a wire conductor the minimum
diameter shall be 0.1mm. Alternatively if a track antenna is used, the tracking shall have a
minimum width of 0.4mm
8. The antenna circuit does not meet the dielectric strength requirements of Clause 6.3.13. Refer
to manufacturers’ instruction manual for further details.
Labelling Details.
II 2 G Exdb II* T6-3*Gb -##°C ≤ Ta ≤ +##°C
II 2 D Ex tb III* T135°C Db IP66/67
II 2 G Exdb op is II* T4/3 Gb -##°C ≤ Ta ≤ +##°C
(Illuminator)
II 2 D Ex tb op is III* T135°C Db IP66/67
II 2 G Exdb op pr II* T6…3*Gb -##°C ≤ Ta ≤ +##°C
(Fibre Optic)
II 2 D Ex tb op pr III* T135°C Db IP66/67
II 2 G Ex db ????[Ex ia Ga] IIC T6…T5 Gb -##°C ≤ Ta ≤ +##°C
(Wireless IS)
II 2 D Ex tb ????[Ex ia Ga] IIIC T135°C Db IP66/67
Note: T class, Gas Group and ambient temperature, is dependent on the assembly configuration
and maximum internal power dissipation.
???? = Optional op pr/op is coding
*=T class, Gas Group
## = Ambient Temperature range
Marked Ambient range can be any of the
-40
C to +40
C, -60
C to +40
C, -40°C to +50°C ,
following
-40°C to +55°C , -40
C to +70
C, -60
C to +70
C
Wireless Ex ia
T6: -40°C ≤ Tamb ≤ +40°C
T5: -40°C ≤ Tamb ≤ +50°C or
T5: -40°C ≤ Tamb ≤ +55°C
