Turck FCS-G3/4A4-NAEX0 Manuel utilisateur

Flow monitoring

Immersion sensor without integrated processor

FCS-G3/4A4-NAEX0

Edition • 2016-02-13T03:18:16+01:00

1 / 2 Hans Turck GmbH & Co.KG ñ D-45472 Mülheim an der Ruhr ñ Witzlebenstraße 7 ñ Tel. 0208 4952-0 ñ Fax 0208 4952-264 ñ [email protected] ñ www.turck.com

Type code FCS-G3/4A4-NAEX0

Ident no. 6870473

Mounting conditions insertion style sensor

Water Operating Range 1…100cm/s

Oil Operating Range 3…200 cm/s

Stand-by time typ. 8 s (2…15 s)

Switch-on time typ. 2 s (1…13 s)

Switch-off time typ. 2 s (1…15 s)

Temperature jump, response time max. 12 s

Temperature gradient ð 250 K/min

Medium temperature -20…60 °C

Device designation É II 1/2 G EEx ia IIC T6

ignition protection category Ex ia IIC

PowerPið 0.69 W

Internal inductances/capacitances negligibly small

Ex approval acc. to conformity certificate TÜV 99 ATEX 1517X

Protection class IP67

Housing material stainless steel, V4A (1.4571)

Sensor material stainless steel, AISI 316Ti

Max. tightening torque housing nut 30 Nm

Connection PUR cable

Cable length 2 m

Cable cross section 4 x 0.25 mm2

Pressure resistance 60 bar

Process connection G ¾″

■ATEX category II 1/2 G, Ex zone 0

■Intrinsically safe flow sensor for liquid

media

■Calorimetric principle

■Adjustment via potentiometer at Ex sig-

nal processor

■Status indicated via LED chain on sig-

nal processor

■Intrinsically safe EEx ia IIC T6, for use

in zone 0

■Cable device

■4-wire connection to an Ex0 processor

Wiring Diagram

Functional principle

Our insertion - flow sensors operate on the

principle of thermodynamics. The measur-

ing probe is heated by several °C as against

the flow medium. When fluid moves along the

probe, the heat generated in the probe is dis-

sipated. The resulting temperature is mea-

sured and compared to the medium tempera-

ture. The flow status of every medium can be

derived from the evaluated temperature differ-

ence. Thus TURCK's wear-free flow sensors

reliably monitor the flow of gaseous and liquid

media.

Flow monitoring

Immersion sensor without integrated processor

FCS-G3/4A4-NAEX0

Edition • 2016-02-13T03:18:16+01:00

2 / 2 Hans Turck GmbH & Co.KG ñ D-45472 Mülheim an der Ruhr ñ Witzlebenstraße 7 ñ Tel. 0208 4952-0 ñ Fax 0208 4952-264 ñ [email protected] ñ www.turck.com

Operating manual

Intended use

This device fulfils the directive 94/9/EC and is suited for use in explosion hazardous areas according to EN50014, EN50020 and EN50284.

For use in explosion hazardous areas conform to classification

II 1 G (Group II, Category 1 G, electrical equipment for gaseous atmospheres).

Marking (see device or technical data sheet)

É II 1/2 G and EEx ia IIC T6 acc.to EN50020 and EN50284

Installation / Commissioning

These devices may only be installed, connected and operated by trained and qualified staff. Qualified staff must have knowledge of protection

classes, directives and regulations concerning electrical equipment designed for use in explosion hazardous areas.

Please verify that the classification and the marking on the device comply with the actual application conditions.

This device is only suited for connection to approved EExi circuits acc. to EN500014 and EN50020. Please observe the maximum admissible

electrical values.

After connection to other circuits the sensor may no longer be used in EExi installations. When interconnected to (associated) electrical equip-

ment, it is required to perform the "Proof of intrinsic safety" (EN60079-14).

Installation and mounting instructions

Avoid static charging of cables and plastic devices. Please only clean the device with a damp cloth. Do not install the device in a dust flow and

avoid build-up of dust deposits on the device.

If the devices and the cable could be subject to mechanical damage, they must be protected accordingly. They must also be shielded against

strong electro-magnetic fields.

In order to avoid contamination of the device, please remove possible blanking plugs of the cable glands or connectors only shortly before in-

serting the cable or opening the cable socket.

service / maintenance

Repairs are not possible. The approval expires if the device is repaired or modified by a person other than the manufacturer. The most important

data from the approval are listed.

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