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TCA_Compact_Temperature_switches_Riels

TCA_Compact_Temperature_switches_Riels

Product catalog summary

Specifications:
The compact temperature switches from Riels Instruments are designed with a degree of protection rated at IP65 (NEMA 4). They feature explosion-proof protection (Ex-d IIC T6 and T4) and dust-protected enclosures (Ex-tD A21 IP65 T85 and T135). The electrical safety class is class I according to EN61298-2:1997-06. The case and cover are made from copper-free aluminium alloy with an epoxy exterior painting in grey color. Cable entry is standard at 1/2-14 NPT-F, and the terminal block accommodates wire sections from 0.5 mm2 to 1.5 mm2. Earthing screws are provided both inside and outside, with a maximum earthing wire section of 4 mm2.

Procedures:
The vapor tension system adheres to SAMA II C or II A standards, with a bulb made of AISI 316. The insertion length ranges from -30 to +250°C. The repeatability is better than 1% of the span. The scale includes direct sensor type B and remote sensors type C, Q, R, with ambient temperature limits from -40 to +85°C.

Standards and Directives:
The product complies with Directive ATEX 94/9/EC Group II Category 2GD Annex III+IV and is in accordance with ISA S51.1.

Ordering Information:
When ordering, specify the model code, setting range, pressure connection thread, cable entry thread, and any options or versions required.

Catalog excerpts

TCA_Compact_Temperature_switches_Riels-1

Compact temperature switches explosionproof Execution Electric construction Degree of protection: IP65 (NEMA 4). - Dust-protected enclosure: Ex-tD A2I IP65T85 andTI 35 Electrical safety class: class I (EN61298-2:1997-06) Case and cover copper free aluminium alloy, threaded coupling with tam- per proof device. Epoxy exterior painting, grey colour Cable entry: 1/2-14 NPT-F (std) (see point 4). Terminal block: suitable for wires section 1,5 mm2 (minimum 0,5 mm2). Insulating material toVDE standard. Earthing screws: one Inside, one outside. Max section of earthing wires: 4 mm2. Electric contacts (See point 1.4) One micro, SPDT or DPDT, with fixed dead band. Vapor tension system to SAMA II C or II A, consisting of: - Connection AISI 304 compression fitting with adjustable nsertion length. - Capillary AISI 3 I 6 with stainless steel flexible armor Adjustable throughout the range. Repeatability: better than I % of span. Scale: the Instrument Is fitted as std. with an approximate scale of the set point Indication. - Remote at surface (std.) or 2" pipe (with optional bracket), sensors type Ambient temperature (operative limit1): Directive ATEX 94/9/EC Group II Category 2GD Annex lll + IV REMOTE (SENSORTYPE "C/Q/R") DIRECT (SENSORTYPE "B") Riels Instruments Sri . W +39 049 8961771 - A +39 049 7l7368 .www.riels.it. [email protected]

Open the catalog to page 1

TCA_Compact_Temperature_switches_Riels-2

Model code - Setting range - Pressure connection thread - Cable entry thread - Options if any - Versions. MODEL CODE Enclosure code Sensor code (D On instrument nameplate, data underlined only © Simultaneous action to within 2% of span. Scientific Apparatus Makers Association SETTING RANGES working range Proof temperature Classification of the thermal system. BULB CONNECTIONS CABLE ENTRY Helical bulb (ranges -15/+40°C & +10/+70°C) height between bulb/enclosure: Yean be varied up to Ymax. THE LENGTH K AVAILABLE WILL BE REDUCED accordingly.

Open the catalog to page 2

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