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3.49 Differential Pressure Switch
Brand: Nuova FimaThese flameproof electrical apparatus comply with European Directive ATEX 2014/34/EU, for group II and category 2 GD.
They are suitable for a variety of uses in hazardous zones 1, 2, 21 and 22 in which the use of flameproof instrument is required.
The sensing element is a metallic diaphragm with 2 metallic bellows and acts directly on the microswitch through a self-centering pivot.
The simplicity of the design, without levers, cams or similar mechanisms, gives the unit an exceptionally long working life.
Specifications
Brand
Ambient Temperature Range
- -4° to +149° F (-20° to +65° C)
Case
- Aluminum, Blue Polyurethane Painted
Cover
- Aluminum, Beige Polyurethane Painted
Differential
- Fixed
Earth Contacts
- N. 1 Internal, N. 1 External
Elastic Element
- AISI 316 Stainless Steel Diaphragm with N.2 AISI 316 Ti Bellows
- Viton Gasket
Flushing Plugs
- AISI 316 Stainless Steel
IP Protection Rating
- IP65 as Per IEC 529
Process Connection
- AISI 316 Stainless Steel
Process Fluid Temperature
- -4° to +140° F (-20° to +60° C)
Ranges
- 0 to 250 Mbar / 0 to 600 Mbar
Repeatability
- ≤ 1 % of the Full Setting Value
Set Point Adjustment
- Internal, Micrometric Adjustable
Tag
- AISI 304 Stainless Steel, Silk-Screen Painted
Tell-tale Vents
- Polypropylene
Thermal Drift
- ≤ 0,027 %/°F (≤ 0,05 %/°C)
Type of Ignition Protection
- As Per EN 60079-0 & EN 60079-1: Ex db IIC T6 Ex Tb IIIC T85° C