Gill Instruments Ltd
Intrinsically Safe WindObserver Anemometer Page 17 Issue 10
Doc. No. 1360-PS-0001 May 2015
5.2.3 Anemometer
Instructions specific to hazardous area installations (in accordance with IEC60079-
0:2011 clause 30)
The following instructions relevant to safe use in a hazardous area apply to equipment
covered by certificate numbers IECEx SIR 15.0013 and SIRA 15ATEX2014.
The certification marking is as follows:
Ex ia IIIC T135°C Da IP66
Ex ia IIIC T135°C Da IP66
The equipment may be used in zones 0, 1 & 2 with flammable gases and vapours
with apparatus groups IIA, IIB & IIC and with temperature classes T4.
The equipment is only certified for use in ambient temperatures in the range
-30ºC to +70ºC and should not be used outside this range.
The equipment may be used in zones, 20, 21 & 22 with flammable dusts, fi
and flyings in groups IIIA, IIIB and IIIC, T135ºC.
Installation shall be carried out in accordance with the applicable code of practice
by suitably-trained personnel.
There are no special checking or maintenance conditions other than a periodic
With regard to explosion safety, it is not necessary to check for correct operation.
The equipment contains no user
replaceable parts and is not intended to be
repaired by the user. Repair of the equipment is to be carried out by the
manufacturer, or their approved agents, in accordance with the applicable code of
practice.
Intrinsically Safe operation is strictly dependant on the use of approved power
supplies and maximum cable lengths lying within the limits recommended in the
manual.
the equipment is likely to come into contact with aggressive substances, e.g.
acidic liquids or gases that may attack metals or solvents that may affect
polymeric materials, then it is the responsibility of the user to take suitable
precautions that prevent it from being adversely affected thus ensuring that the
type of protection is not compromised.