ATEX Intrinsic Safety Type of Explosion Protected Construction
1. A positioner must be energized only after wiring via a barrier.
2. Use a linear resistance type barrier based on intrinsically safe parameter for the input circuit.
3. If a positioner is used as intrinsic safety type of explosion protected construction for ATEX,
connect it only to the intrinsically safety electric circuit with the following maximum value.
Parameter (current circuit): Ui≦28V、Ii≦100mA、Pi≦0.7W、Ci≦12.5nF、Li≦1.5mH
4. This positioner becomes ATEX intrinsic safety type of explosion protected construction when
its part number is selected as 52-IP8101-034--. The basic type (IP8101-030-*), output
function type (IP8101-032), and HART communication type (IP8101-033) must not be used
in a place with an explosion risk.
5. Positioner has an aluminium alloy enclosure. When used in a potentially explosive atmosphere
requiring the use of category 1G equipment, the apparatus must be installed so that, in the
event of rare incidents, an ignition source due to impact or friction is excluded.
6. Do not use it in a non-hazardous area where air leakage would cause a risk.
7. If a positioner is used in a hazardous area, speed of the actuating part should be 1m/s or less.
The actuator should not have hunting.
8. Make sure to use a grounding terminal, and grounding should be performed based on an
electric work policy in each region.
9. The temperature at a positioner surface should not be increased more than the temperature
rate by direct sunshine.
10. To maintain explosion protected construction, the electric circuit should not be changed.
11. Safety Barriers used in the positioner supply circuit must be linear resistive output type
barriers, in accordance with the I.S. Parameters given in the specifications (see Table 1).
12. Explosion protected cable gland supplied for M20X1.5 electrical connections (for
52-IP8101-034-*-M) is approved to ATEX II 2GD, but subsequently tested by the notified
body in accordance with ATEX II 1GD during certification of the 52-IP8101 positioner.
■ATEX Intrinsic Safety type of Explosion Protected Construction
IP8101 type smart positioner has an explosion protected construction which was approved by
DEKRA, a notified body for explosion protected certification, as ATEX compliant intrinsic safety
type of explosion protected construction. Please pay full attention when it is used as an explosion
protected construction specification.
■Explosion Protected Construction Rate
The 52-IP8101 model is compliant with the ATEX Directive 2014/34/EU, Intrinsically Safe type of
Construction, toⅡ1G Ex iaⅡC T4-T6 Ga classification, T4/T5 -20℃≦Ta≦80℃ T6 -20℃≦Ta≦
60℃ according to EN 60079-0:2012+A11:2013,EN 60079-11:2012 AND EN ISO 80079-36:2016.
■Wiring
If 52-IP8101 type smart positioner is used as a intrinsic safety type of explosion protected construction, a
barrier must be set at non-hazardous area like Fig. 12, and each positioner must have wiring via the
barrier. For wiring the positioner 52-IP8101-034-*-M/2/5, the attached cable gland (M20x1.5) should be
used for the electrical entry (see Fig. 13). Except for the positioners 52-IP8101-034-*-M/2/5, a cable
gland that has the same explosion protected construction rate or better as those positioners.
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