Ettore Cella Spa

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	pressure switch

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Model Number

PCS PCA

GENERAL FEATURES OF SERIES PCS PCA
? ELECTRIC CONSTRUCTION: Explosionproof
Mode of protection EEx-d IIC T6, to std. EN 50.018.
Certificate no. CESI 02ATEX118.
Degree of protection IP65 (NEMA 4).
? ENCLOSURE: case and cover copper free aluminium alloy, threaded coupling with tamper proof device. Epoxy exterior painting, grey colour.
Cable entry: 1/2-14 NPT-F.
Terminal block: suitable for wires section 1,5 mm2 (minimum 0,5 mm2). Insulating material to VDE standard.
Earthing screws: one inside, one outside. Max section of earthing wires: 4 mm2.
? ELECTRIC CONTACTS (see point 1.4 overleaf) One micro, SPDT or DPDT, with fixed dead band.
? SENSOR:
P : piston with antagonist spring.
G: piston with antagonist spring and seal diaphragm suitable for Category 1/2G or with gas on closed circuits.
Wetted parts: see point 2 overleaf.
? RANGES: from 8 bar to 600 bar (see point 2 overleaf).
? SET POINT: adjustable throughout the range.
Repeatibility: better than 1% of span.
Scale: the instrument is fitted as std. with an approximate scale of the set point indication.
?MOUNTING:
-surface or direct (std.), 2" pipe (opt.).
?AMBIENT TEMPERATURE (operative limits): -40/+60°C.
?EQUIPMENT: certified according to
Directive PED 97/23/EC Annex I Category IV Modules B+D
Directive ATEX 94/9/EC Group II Category 1/2G (PCA_G) Annex III+IV
Directive ATEX 94/9/EC Group II Category 2G (PCA_P) Annex III+IV