Rosemount 2120, Reference Manual

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Reference Manual
00809-0100-4030, Rev DA
June 2007
Rosemount 2120
B-15
10. Technical data:
Coding: Zone 0/1
Ex d IIC T6 (Ta = -40°C to + 75°C)
Ex d IIC T4 (Ta = -40°C to +125°C)
Ex d IIC T3 (Ta = -40°C to +150°C)
Ex tD A21 T85°C (Tamb -40°C to +75°C) IP6X
Ex tD A21 T135°C (Tamb -40°C to +125°C) IP6X
Ex tD A21 T160°C (Tamb -40°C to +150°C) IP6X
Ta = the higher of the process or ambient temperature.
For electrical details and pressure ratings, refer to Section 2: Installation and
Appendix A: Reference Data.
11. Label and certification plate details.
Typical arrangement shown. Sensor specific details omitted.
12. Cable selection.
It is the responsibility of the user to ensure that suitably temperature rated cable is used.
The table below is a guide to selection:
T Class Cable Temperature Rating
T6 85°C
T5 100°C
T4 135°C
T3 160°C
WARNING ARNING
DO NOT OPEN WHEN AN EXPL O NOT OPEN WHEN AN EXPLOSIVE OSIVE
ATMOSPHERE MA TMOSPHERE MAY BE PRESENT Y BE PRESENT
REFER TO REFER TO
INSTRUCTION INSTRUCTION
MANUAL MANUAL
FL FLAMEPROOF VIBRA AMEPROOF VIBRA TING FORK LEVEL SWIT TING FORK LEVEL SWIT CH CH
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ENCL. IP66/67 ENCL. IP66/67
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ENTRIES M20 ENTRIES M20
ZONE 0/1 IECEx SIR 06.0051
Manufactured by Mobrey Lt d, Slough, SL1 4UE
REFER
TO
MANUAL
Ex d IIC T6 Ex tD A21 T85°C (-40°C Ta +75°C)
Ex d IIC T4 Ex tD A21 T135°C (-40°C Ta +125°C)
Ex d IIC T3 Ex tD A21 T160°C (-40°C Ta +150°C)
≤ ≤
≤ ≤
≤ ≤
Model No.