C-1
95-8676
3.1
APPENDIX C
IECEx APPROVAL
The following items, functions and options describe the IECEx approval.
APPROVAL
PointWatch Eclipse
®
Infrared Carbon Dioxide Gas Detector, Model PIRECL Series.
IECEx ULD 04.0002X
Ex db eb IIC T5...T4
– OR –
Ex db eb [ib] IIC T5...T4
(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 db IIC T5...T4
– OR –
Ex db [ib] IIC T5...T4
(with HART communication port)
T5 (Tamb –55°C to +40°C)
T4 (Tamb –55°C to +75°C)
IP66/IP67.
HART Communication Port:
Uo = 3.47 V
Co = 1000 μF
Io = 117 mA
Lo = 2.3 mH
Um = 250 V
IEC Conditions of Certification (general):
• The Infrared Gas Detector model PIRECL shall be installed in places where there is a low risk of mechanical damage.
• The field wiring terminal connections are certified for a single wire in size from 0.2 to 2.5 mm
2
, (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 Infrared Carbon Dioxide Gas Detector must be electrically connected to earth
ground.
• The Infrared Gas Detector model PIRECL has an ambient temperature rating of –55°C to +75 °C.
• Alarm output latching requirement: High alarm outputs must be configured as latching, either as part of the alarm
operation of the gas detector itself (in stand-alone applications), or as a function of the “high alarm” indication within the
controller that is directly connected to the gas detector (for remote applications).
• Potential electrostatic charging hazard - use a wrist grounding strap or similar method at all times to control accidental
ESD when disassembling, programming, or reassembling the PIRECL gas detector.
• Flameproof joints are not intended to be repaired – contact manufacturer for service or repair.
• Use M6 bolts per ISO 965 with M5 head with yield stress ≥ 65,000 psi (448 N/mm
2
).
Special conditions for safe use for the [ib] HART communication port only:
• The PointWatch Carbon Dioxide Infrared Gas Detector model PIRECL shall be powered from a Safety Isolating Transformer
according to EN60742 or EN61588.
• The intrinsically safe output on the HART Communicator Port is internally connected to enclosure ground and will therefore
not withstand a dielectric strength test.
• For installations in which both the Ci and Li of the intrinsically safe apparatus exceeds 1% of the Co and Lo parameters
of the associated apparatus (excluding the cable), then 50% of Co and Lo parameters are applicable and shall not be
exceeded. The reduced capacitance shall not be greater than 1 µF for Groups IIA and/or IIB, and 600 nF for Group IIC.
