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APPENDIX 1.
ATEX SAFETY GUIDELINES
ATEX Safety guidelines for the use of the VF04 2-wire Non-contact guided level transmitter
General:
Instruments with the code
VF04
-4
-5Ex, VF04
-4
-6Ex or VF04
-4
-8Ex are designated as ATEX instruments
according to ATEX directive 2014/34/EU
.
See Ex markings and Maximum surface temperature data for group, category and temperature classification data.
Marking of approved instrument according to directive 2014/34/EU:
Example of a VF04 ATEX Ex ia nameplate
Guidance for installation, setup and repair
Installation, setup and maintenance must be in accordance with the applicable codes of practice and harmonised standards for Ex ia (intrinsic safe) equipment and by
qualified technical personnel only.
User repairs are not permitted; in case of faults return the unit to Hycontrol.
The level transmitter must be operated in an intrinsically safe circuit only.
The metal enclosure of the unit must be connected to the EP (Equipotential) circuit.
The units with plastic coating can only be used in group IIB gas class hazardous area, see page 8.
Ex markings
T
YPE
A
LUMINIUM HOUSING
VF04
-4
-5Ex,6Ex,8Ex
Ex marking (ATEX)*
II 1 G Ex ia IIC T6…T3 Ga, II 1 G Ex ia IIB T6…T3 Ga
II 1 D Ex ia IIIC T85°C…T180°C Da, II 1/2 D Ex ta/tb IIICT85°C… T180°C Da/Db
Intrinsically safe data (Ex ia IIB and Ex ia IIIC)
Ci ≤ 10 nF, Li ≤ 10
H, Ui ≤ 30 V, Ii ≤ 140 mA, Pi ≤ 1 W
Intrinsically safe data (Ex ia IIC)
Ci ≤ 10 nF, Li ≤ 10
H, Ui ≤ 30 V, Ii ≤ 100 mA, Pi ≤ 0.75 W
Medium temperature
–30 °C ... +200 °C (
see Section 3.2 Technical data –
M
EDIUM
T
EMPERATURE
table – Page 8
)
Medium pressure
–0.1 … 4 MPa (-1…40 bar) (
see Section 3.2 Technical data –
M
EDIUM
P
RESSURE
diagram – Page 8
)
*In case of Atex “G Ex ia” level transmitters with display the apparatus group can only be “II B”.
Maximum surface temperature data for hazardous atmospheres:
E
XPLOSIVE
G
AS
A
TMOSPHERE
E
XPLOSIVE
D
UST
A
TMOSPHERE
A
LUMINIUM HOUSING
VF04
-4
-8Ex
A
LUMINIUM HOUSING
VF04
-4
-5Ex,6Ex
H
IGH TEMPERATURE
VF04H
-4
-8Ex
VF04P
-4
-8Ex
H
IGH TEMPERATURE
VF04H
-4
-6Ex
VF04P
-4
-6Ex
Ex ia IIB, Ex ia IIC
Ex ia IIIC/ Ex ta/tb IIIC
Maximum permissible medium
temperature at the antenna
+80°C
+90°C
+100°C
+180°C
+80°C
+90°C
+100°C
+180°C
Maximum permissible surface
temperature at the process connection
+75°C
+90°C
+100°C
+175°C
+75°C
+90°C
+100°C
+175°C
Temperature class
T6
T5
T4
T3
T85°C
T100°C
T110°C
T180°C
