TCA_Compact_Temperature_switches_Riels0 pages

TCA

COMPACT

TEMPERATURE

SWITCHES

TEMPERATURE

Compact temperature switches

explosionproof Execution

Electric construction

Degree of protection: IP65 (NEMA 4).

Mode of protection:

- Explosion-proof: Ex-d IICT6 andT4

- Dust-protected enclosure: Ex-tD A2I IP65T85 andTI 35

Electrical safety class: class I (EN61298-2:1997-06)

Enclosure

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.

Sensor

Vapor tension system to SAMA II C or II A, consisting of:

- Bulb AISI 316.

- Connection AISI 304 compression fitting with adjustable

nsertion length.

- Capillary AISI 3 I 6 with stainless steel flexible armor

Ranges

-30 to + 250°C, (see point 2).

Set point

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.

Mounting

- Direct, sensortype B.

- Remote at surface (std.) or 2" pipe (with optional bracket), sensors type

C, Q, R.

Ambient temperature (operative limit1):

Ambient temperature -40/+85°C

Equipment

Certified according to

Directive ATEX 94/9/EC Group II Category 2GD Annex lll + IV

) In accordance with ISA S5 I.

(£^) AT f / GAS Ex-d DUST Ex-tD

Gr. II Cat. 2 GD

IP65

Dimensions (mm) e weights (kg)

to

66

A*

0 9.S

ffl

4tf

X

1

REMOTE (SENSORTYPE "C/Q/R") DIRECT (SENSORTYPE "B")

= bulb connection

E = cable entry

Weight: I kg

Riels Instruments Sri . W +39 049 8961771 - A +39 049 7l7368 .www.riels.it. info@riels.it