Det-Tronics PIRECL - HART Communication; HART Communication Overview; Establishing Local HART Communication; HART Communication Notes

D-1 95-852613.1
Appendix d
IECEx APPROVAL DESCRIPTION
The following items, functions and options describe the IECEx approval.
APPROVAL
PointWatch Eclipse
®
Infrared Hydrocarbon Gas Detector, Model PIRECL Series.
IECEx ULD 04.0002X
Ex de IIC T4-T5 Gb
-- OR --
Ex de [ib] IIC T4-T5 Gb
(with HART communication port)
T5 (Tamb –50°C to +40°C)
T4 (Tamb –50°C to +75°C)
IP66/IP67.
-- OR --
IECEx ULD 04.0002X
Ex d IIC T4-T5 Gb
-- OR --
Ex d [ib] IIC T4-T5 Gb
(with HART communication port)
T5 (Tamb –55°C to +40°C)
T4 (Tamb –55°C to +75°C)
IP66/IP67.
HART Communication Port:
U
o
= 4.0V C
o
= 20μF
I
o
= 100mA L
o
= 500μH
IEC Conditions of Certification:
• Theeldwiringterminalconnectionsarecertiedforasinglewireinsizefrom0.2to2.5mm2,(ortwoconductors
with same cross section 0.2 to 0.75 mm
2
). The screws must be tightened down with a torque 0.4 to 0.5 Nm.
• ThemetalhousingoftheModelPIRECLGasDetectormustbeelectricallyconnectedtoearthground.
• Thegasdetectorshallbeprotectedagainstanyimpactgreaterthan4joules.
• TheintrinsicallysafeoutputontheHARTCommunicatorPortisinternallyconnectedtoframe.
• ThepowersupplyforthedetectorhastobeaSafetyIsolatingtransformeraccordingtoe.g.IEC61558.Therating
of the power supply line fuse shall be less than 3.1 A.
• Whenconnectingtoacircuitusingupto1%ofCoorLo,thentheCorLislimitedtotheCoandLolistedabove.If
either the C or L is above 1% of Co or Lo, then C or L are each limited to 50% of the Co or Lo listed above.
• Umisrestrictedto250V,prospectiveshortcircuitcurrent<1500A.
IEC Standards:
IEC 60079-0: 2007
IEC 60079-1: 2007-04
IEC 60079-11: 2006
IEC 60079-7: 2006-07
IEC 60529, 2.1 Edition with Corr. 1
(2003-01 + 2 (2007-10)
WARNING
Always ensure that the detector/junction box hazardous (classied) location ratings are applicable for the
intended use.