Baumer CleverLevel - LFFS Instrukcja Użytkownika Pobierz pdf (Strona 8)

ATEX

Operators instructions

CleverLevel switch, LFFS

Ex ia IIC T5, ATEX II 1G - Installation

A Level Switch LFFS-1xx.x is Ex ia IIC T5, ATEX II 1G ap-

proved for application in hazardous areas in accordance with

the current EU directives. The product must be installed in

accordance with prevailing guidelines for zone 0 with a barrier

Ex-data

Supply range 24...30 VDC

Temperature class T1...T5 Pls. see above table

Internal inductivity L

<10 µH

Internal capacity C

<33 nF

Barrier data U <30 VDC

I <0.1 A

P <0.75 W

Connection type Ambient temperature Media temperature

(max. allowed)

Note

G½ hygienic -40 … +85 °C +85 °C

3A DN38

-40 … +60 °C +95 °C 1)

-40 … +40 °C +115 °C 1)

100 mm -40 … +85 °C +85 °C

Sliding connection

-40 … +60 °C +155 °C 1)

-40 … +40 °C +175 °C 1)

250 mm -40 … +85 °C +85 °C

Sliding connection

-40 … +60 °C +195 °C 1)

-40 … +40 °C +200 °C 1)

Conditions for Ex certification

1) Provided that

the sensor tip

at the instru-

ment is the

only part in

contact with

the media

ATEX Gas ia

LFFS-1xx.x

with PNP output

Safe area

+ 22...120 VDC

- 90...253 VAC

Note:

For PNP output the barrier module

PFOFSI3-B25100-ALG-LS

is required for functional purposes.

PFOFSI3-B25100-ALG-LS

NPN out

LFFS-1xx.x

with NPN output

Note:

For NPN output only!

A standard barrier may be used

Standard barrier

Two-channel

ZENER barrier

www.baumer.com Operators instructions: 11109132 02 EN Page 8 / 12

Note:

There is an electrical connection between intrinsic safe circuit

and housing due to the measurement principle

1 2 3 4 5 6 7 8 9 10 11 12

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