
Flow monitoring
Immersion sensor without integrated processor
FCS-G3/4A4-NAEX/L080/D100/D093
Edition • 2015-07-28T06:02:06+02:00
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Hans Turck GmbH & Co.KG
ñ D-45472 Mülheim an der Ruhr
ñ Witzlebenstraße 7
ñ T
el. 0208 4952-0
ñ Fax 0208 4952-264
ñ [email protected] ñ www
.turck.com
Type code FCS-G3/4A4-NAEX/L080/D100/D093
Ident no. 6870170
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 10…120 °C
Device designation É II 2 G EEx ib IIC T6
ignition protection category Ex ib IIC
PowerPið 0.69 W
Internal inductances/capacitances negligibly small
Ex approval acc. to conformity certificate TÜV 99 ATEX 1518
IP Rating IP68
Housing material stainless steel, 1.4539 (904L)
Sensor material stainless steel, 1.4539 (904L)
Max. tightening torque housing nut 100 Nm
Connection PTFE cable
Cable length 2 m
Cable cross section 4 x 0.25 mm2
Pressure resistance 60 bar
Process connection G ¾″
■ATEX category II 2 G, Ex Zone 1
■Ex flow sensor for liquid media
■Calorimetric principle
■Adjustment via signal processor
■Status displayed via signal processor
■Sensor material 1.4539 (904L)
■Sensor length 80 mm
■Temperature range 10…120 °C
■EEx ib IIC T6 (use in zone 1)
■4-wire connection to EX0 processor
■Cable device
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.