Notes For Use In Hazardous Locations - UWT Rotonivo RN 4000 Series Technical Information/Instruction Manual

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Rotonivo
Notes for use in Hazardous Locations
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Zone classification
Useable in zone
3
Dust applications
General Notes
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Marking
Process pressure
for ATEX / IEC-Ex
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Process and ambient
temperature
Permitted zones for mounting in partition wall
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EPL (IEC-Ex)
Category (ATEX)
Zone
7
EPL (IEC-Ex)
Category (ATEX)
Zone
8
Max. Surface Temperature and Temperature Code
The temperature marking on the name plate
In the following tables the relevant temperature ratings are shown.
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The maximum surface temperature (resp. temperature class) is the warmest temperature of the unit which could occur during
malfunction (according to Ex-definition).
Max. ambient
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temperature
40°C (104°F)
50°C (122°F)
60°C (140°F)
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With use of electronic "Universal voltage"
(1)
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page G 16
Level limit switch
®
Series RN 4000
Technical information / Instruction manual
ATEX
Category
20, 21, 22 1 D
21, 22 2 D
22 3 D *
Devices with Ex approval are marked on name plate.
The device construction allows process over-pressure upto 0.8 bar (11.6 psi). These pressures are
allowed for test purposes. The definition of the ATEX and IEC-Ex is only valid for a container-over-
pressure between -0.2..+0.1 bar (-2.9..+1.45psi).
For higher or lower pressures the approval is not valid.
The permitted temperature ranges are marked on the name plate.
Db
2D
21
Da
1D
20
Max. process Max. surface
temperature temperature
100°C (212°F)
60°C (140°F)
120°C (248°F)
110°C (230°F)
70°C (158°F)
120°C (248°F)
80°C (176°F) 120°C (248°F)
IEC-Ex
Equipement
Protection Level
(EPL)
Da
Db
Dc
refers to the instruction manual.
Temperature
class
T5
(1) T4 (1)
T4
(1)
T4
gi010114
* in case of conductive dust
additional requirements for the
installation are necessary.
ambient area
process area
RN 4000