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e) Cable Glands and Stopping Plugs certified to EN 60079-0 (e.g. Dust-protected ta/tb/tc; Increased safety Ex e;
Flameproof Ex d; Type of protection "n" Ex n) are acceptable provided they are fitted with the appropriate seal to the
enclosure and maintain a minimum ingress protection of IP64. (This seal may be incorporated within the gland or plug.)
f) The equipment must be powered from a nominal 24 V DC power supply that includes transient protection at no more
than 119 V DC. This requirement will be met if the power supply meets the requirements of the Low Voltage Directive.
g) If the equipment is likely to come into contact with aggressive substances (e.g. Acidic liquids or gases that may attach
metals or solvents that may attack polymeric materials relied upon for sealing), 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
(Dust exclusion Ex tc and Non-sparking device Ex nA) is not compromised.
4.4 SPECIAL CONDITIONS OF SAFE USE FOR SENSOR BODY AND PROBE
a) The ½" sensor body must be mounted in the dust stack so that the PTFE insulator is positioned within the wall of the
dust stack, to protect the insulator from a build-up of electrostatic charge and to protect it from any possible impact.
b) Neither the PTFE insulator of the ½" sensor body nor any of the labels attached to it are to be rubbed with a dry cloth
or anything else that might cause a build-up of electronic charge.
c) If the ½" Sensor Body and Sensor Probe are used with a Sensor Enclosure, then a connection shall be made between
the stud on the Sensor Enclosure and the dust stack wall. The connection shall be made as follows:
• The cable shall have a cross-sectional area of at least 4 mm².
• The cable shall be connected using an anti-vibration nut and washer or a similar arrangement of comparable integrity.
If the Probe is removed while a potentially flammable dust/air mixture is present, this connection shall be maintained during
the withdrawal of the Sensor Body and Probe.
d) If 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 relied upon for sealing), 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
(dust exclusion) is not compromised.
e) The ambient temperature range within the dust stack in which the ½" Sensor Body and Probe are mounted must
be no more than –20°C to +200°C.
4.5 EQUIPMENT MARKING INFORMATION
WARNING! – ELECTRIC SHOCK
Potential Electrostatic Charging Hazard (see instructions).
WARNING!
Do not open when energized!
The FFD sensor unit has two labels applied to its enclosure: a serial number label and a label showing the ATEX-related
Ex/CE marking obtained by the manufacturer for this instrument.
The equipment in normal operation is incapable of producing arcs, sparks, or hot surfaces, which may cause ignitions, and
is designed to be installed and used in accordance with EN 60079-14:2014.
For details refer to the Special Conditions of Safe Use above.
DUST ZONE
Certificate number:
Certification code:
Manufacturer's name:
Manufacturing address:
Model number:
Year of manufacture:
A
The probe does not generate heat; therefore, the surface temperature is dependent upon the stack temperature, maximal +200°C (390°F).
INSTALLATION AND OPERATION MANUAL – OWNER'S RECORD FFD MANUAL – FILTER FAILURE DETECTOR
Outside stack (enclosure)
Ex nA IIB T6 Gc
Ex tc IIIC T80°C Dc
Ta = –20°C to +50°C
PCME Ltd.
St Ives, Cambs, PE27 3GH, UK
as applicable
as applicable
ATEX
ZONE 2/22
PCME15ATEX0002X
Inside stack (sensor body, probe)
Ex nA IIB T3 Gc
Ex tc IIIC T200°C Dc
Ta = –20°C to +200°C
A
II 3G/D
07
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