PXA_Mini_pressure_switches_Atex_Riels0 pages

PXA

MINI PRESSURE

SWITCHES ATEX

PRESSURE

Mini pressure switches

EXPLOSION-PROOF Execution Ex-d, Ex-tD in SS case

GENERAL FEATURES OF SERIES PXA

Electric construction:

- Degree of protection: weather-proof IP 66

- Mode of protection:

- Explosion-proof Ex-d IICT6 andT4

- Dust-protected enclosure: Ex-tD A21 IP66T85 andTI 35

- Electrical safety class: class I (EN6 1298-2:1997-06)

- Enclosure: AISI 316 (1.4401) stainless steel case

- Electrical connection: see point 4 overleaf

- Connecting cable: multicores cable with flexible conductors section 0,5

mm2 (20 AWG) and 1,5 m length. The conductors are silicone rubber

nsulated and the cable sheath too,

- Earthing: inside (std), outside (option)

- Electric contacts: one micro, SPDT with fixed dead band, hermetically

sealed (see point 1.3 overleaf).

- Sensor: welded diaphragm with antagonist spring and snapaction Bel-

eville spring.

-Wetted parts: see point 2 overleaf

- Ranges: from I bar to 400 bar (see point 2 overleaf),

- Set point: adjustable throughout the range

- Repeatability: better than \% of span,

- Mounting: Direct and in any position,

- Ambient temperature (operative limit*): -40/+85°C

- Media temperature (operative limit*):

- sensor cod. M: - 45/+205 °C

- sensor cod. G: - 30/+120 °C

- Equipment: certified according to Directives

- PED 97/23/EC Annex I Category IV Modules B+D

-ATEX 94/9 EC Group II Cat l/2GDAnnex III and IV

* According to ISA S5 I.

P p r\ Category IV

Safety Accessories

x/ AT

f / GAS Ex-d DUST Ex-tD

—y - Gr. II Cat. 1/2 GD

c

IP66

GOST-R

Dimensions (mm) and weights (Kg)

CH.27

... Str.27

MPT

■*!-1*-

OPZIONE. sealola di derivazione

OPTION; junction box

Is

profondits cassetta/box depth = 71 mm

A = attacco pressione / pressure connection

B « auaceo elettrico / electrical connection

Peso / Weight: 0,6 kg

Peso / Weight: 1.1 kg

Riels Instruments Sri • +39 049 896 I771 • A +39 049 717368 • www.riels.it • info@riels.it