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00825-0600-2654, Rev AD
Rosemount™ 214A2A Sensor
Quick Start Guide
March 2021
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Quick Start Guide March 2021
Safety messages
NOTICE
This guide provides basic guidelines for Rosemount™ 214A2A Sensor models.
Complications can arise if sensors are assembled to transmitters that have different, but compatible
approval option codes. Be aware of the following situations:
• If an I.S. approved sensor is ordered with a housing, a transmitter enclosed in that housing may
have a different I.S. approval rating. Refer to the transmitter IS certificate if applicable.
• If a sensor and transmitter have different certifications, or if either has more certifications than the
other, installation must comply with the most restrictive requirements required by either
component. This is especially (but not exclusively) relevant when combination approvals are
ordered on either the sensor or transmitter. Review certifications on both the sensor and
transmitter for installation requirements and ensure installation of the sensor/transmitter
assembly complies with a single certification that is shared by both of these components and that
meets the requirements of the application.
WARNING
Explosions
Explosions could result in death or serious injury.
Installation of sensor in an explosive environment must be in accordance with appropriate local,
national, and international standards, codes, and practices.
Conduit/cable entries
Unless marked, the conduit/cable entries in the housing use a ½–14 NPT thread form. Entries
marked “M20” are M20 × 1.5 thread form. On devices with multiple conduit entries, all entries will
have the same thread form. Only use plugs, adapters, glands, or conduit with a compatible thread
form when closing these entries.
When installing in a hazardous location, use only appropriately listed or Ex certified plugs, glands,
or adapters in cable/conduit entries.
Only use plugs, adapters, glands, or conduit with a compatible thread form when closing these
entries.
Physical access
Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end
users’ equipment. This could be intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and fundamental to protecting your
system. Restrict physical access by unauthorized personnel to protect end users’ assets. This is true for
all systems used within the facility.
Contents
Wiring diagram for RTDs.............................................................................................................. 3
Wiring diagram for thermocouples.............................................................................................. 4
Product certifications................................................................................................................... 5
Declaration of Conformity..........................................................................................................12
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March 2021 Quick Start Guide
1 Wiring diagram for RTDs
Figure 1-1: RTD Lead Wire Configuration per IEC 60751 - Single Element
2-wire 3-wire 4-wire
Note
To configure a single element, 4-wire RTD as a 3-wire system, connect only
one white lead. Insulate or terminate the unused white lead in a manner that
prevents shorting to the ground. To configure a single element, 4-wire RTD
as a 2-wire system, connect matching colored wires first and then connect
the paired wires to the terminal.
Figure 1-2: RTD Lead Wire Configuration per IEC 60751 - Dual Element
3-wire 4-wire
2-wire
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( – )
( + )
( + )
( + )
( – )
( – )
Quick Start Guide March 2021
2 Wiring diagram for thermocouples
Figure 2-1: Thermocouple Lead Wire Configuration
Single thermocouple, 2-wire Dual thermocouple, 4-wire
Table 2-1: Thermocouple Wire Color
IEC 60584 Themocouple ASTM E230 Thermocouple
Type POS (+) NEG (-) POS (+) NEG (-)
E Violet White Purple Red
J Black White White Red
K Green White Yellow Red
N Pink White Orange Red
T Brown White Blue Red
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March 2021 Quick Start Guide
3 Product certifications
Rev 1.0
European Directive information
A copy of the EU Declaration of Conformity can be found at the end of the
Quick Start Guide. The most recent revision of the EU Declaration of
Conformity can be found at Emerson.com/Rosemount.
3.1 E1 ATEX Flameproof
Certificate
Standards
Markings
DEKRA 20ATEX0045X
EN 60079-0:2012+A11:2013, EN 60079-1:2014
II 2 G Ex db IIC T6…T1 Gb
3.2 E7 IECEx Flameproof
Certificate
Standards
Markings
The process side of the assembly is for the responsibility of the user. The
assembly should always be used in a closed system.
No changes are allowed on the product.
Flameproof enclosure “d”;
In type of explosion protection Ex d, certified entry devices shall be used that
are suitable for the application and correctly installed.
Unused openings shall be closed by suitable blanking elements. Only
suitable thread adapters shall be used. Thread adapters will not be used in
combination with blanking elements.
Verify the entry size (M20, ½-in. ¾-in., etc).
The degree of protection of IP66 or IP67 to EN 60529 is only achieved if
certified Ex d entry devices are used that are suitable for the application and
correctly installed.
Only use approved inserts.
For external earthing or bonding connection of the connection head a cable
lug shall be used so that the conductor is secured against loosening and
twisting and that contact pressure is permanently secured.
IECEx DEK 20.0023X
IEC 60079-0:2011, IEC 60079-1:2014-06
Ex db IIC T6…T1 Gb
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3.2.1 Electrical data
Thermocouple sensing element
RTD sensing element
Transmitter data
5 Vdc, 10 mA
5 Vdc, 10 mA
max. 45 Vdc, max 50 mA, max 1.9 W
For the electrical data of a sensor in combination with a transmitter, see
electrical data of the transmitter.
Special Conditions for Safe Use:
1. Ambient temperature range of sensor assembly with PTFE cable
insulation: -40 to +80 °C, and for Silicon cable insulation: -25 to +80
°C.
2. Service temperatures wire: Silicon -25/+160 °C, PTFE -40/+180 °C.
3. Service temperatures connection box and head: -40 to +80 °C, except
for T6 maximum temperature is 70 °C.
4. When the process temperature range exceeds the service
temperature range of the connection head, the connection box and
the cable (the maximum ambient temperature (Tamax) is +80 °C
except for T6 (Tamax) is +70 °C), it shall be verified by on-site
temperature measurements, taking the worst case conditions into
account, that the service temperature of these parts does not exceed
the range as listed above.
5. The measurement report with the conclusions shall be filed together
with the certificate to prove that this condition is met.
6. For information about the dimensions of the flameproof joints,
contact the manufacturer.
7. When a flameproof nipple is used (e.g. ISSeP06ATEX042 U) use
thread sealant with connection to connection head or transmitter.
8. Inserts with a diameter smaller than 3 mm and inserts with notarmored wire shall be protected against mechanical danger.
9. For an ambient temperature exceeding 70 °C, heat resistant cables
and cable glands suitable for at least 90 °C shall be used.
10. For parameters see transmitter or by terminal block U-max: 5V, Imax: 10mA p/channel.
11. The inserts should always be used with a mechanical protection.
12. Minimum and maximum wire temperature: Silicon -25/+160 °C, PTFE
-40/+180 °C. Maximum transition temperature: +80 °C.
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3.2.2 Thermal data
The maximum surface temperature due to process conditions (Tp) is the
maximum surface temperature of any part of the assembly in contact with
the explosive atmosphere.
The temperature class and the maximum surface temperature of the
assembly depend on Tp, as listed in the table.
Tp (°C)
80 T6 85
95 T5 100
130 T4 135
195 T3 200
295 T2 300
445 T1 450
>445 - Tp + 5
Temperature class of the
3.3 I1 ATEX Intrinsic Safety
Certificate
Standards
Markings
DEKRA 20ATEX0047X
EN 60079-0:2012+A11:2013, EN 60079-11:2012
II 2 G Ex ia IIC T6...T1 Gb (SEE CERTIFICATE FOR SCHEDULE)
3.4 I7 IECEx Intrinsic Safety
Certificate
Standards
Markings
IECEx DEK 20.0023X
IEC 60079-0:2011, IEC 60079-11:2011
Ex ia IIC T6...T1 Gb (SEE CERTIFICATE FOR SCHEDULE)
assembly
Maximum surface
temperature of the
assembly (°C)
Any type of connection head can be used, only during installation the proper
certified cable and cable gland should be used. Any type of extension can be
used which insures a protection for the connection head of minimum IP20.
Any type of insert can be used, the terminal-block must have Ex approved
terminals. Any type of thermowell can be used. The process side of the
assembly is for the responsibility of the user. The assembly should always be
used in a closed system.
• Inserts with RTD sensing elements
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Output circuits in type of protection intrinsic safety Ex ia IIC, only to be
connected to a certified intrinsically safe circuit, with the following
maximum values for each insert:
Ui = 14 V, Ii = 1.2 A, Pi = 140 mW, Ci ≤60 nF, Li = 0 mH.
• Inserts with thermocouple sensing elements
Output circuits in type of protection intrinsic safety Ex ia IIC, only to be
connected to a certified intrinsically safe circuit, with the following
maximum values for each insert:
Ui = 14 V, Ii = 1.2 mA, Pi = 140 mW, Ci ≤60 nF, Li = 0 mH.
• Transmitters data: Ui =45 Vdc max., Ii = 50 mA max., Pi = 2.25 W max.
In type of protection intrinsic safety Ex ia IIC or Ex ib IIC, only to be
connected to a certified intrinsically safe circuit, with the maximum
values according to the data listed in the certificate of the transmitter.
The sensor input parameters of the transmitter shall comply with the
parameters of the inserts.
3.4.1 Thermal data
The maximum surface temperature due to process conditions (Tp) is the
maximum surface temperature of any part of the assembly in contact with
the explosive atmosphere.
The temperature class and the maximum surface temperature of the
assembly depend on Tp and, when mounted, on the temperature class of
the integrally mounted transmitter, as listed in the table.
Tp (°C)
75 T6 T6 85
90 T5 T5 100
125 T4 T4 135
190 T3 T3 200
290 T2 T2 300
440 T1 T1 450
>440 T1 - Tp + 10
Temperature class
of the transmitter
Temperature class
of the assembly
Maximum surface
temperature of
the assembly (°C)
Installation instructions
In order to prevent voltage and/or current addition, the output circuits of
each insert shall be wired separately, in accordance with EN 60079-11 and
EN 60079-14.
If a temperature transmitter is mounted, the data of the transmitter shall be
taken from the instructions of the transmitter. The level of protection Ex ia
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March 2021 Quick Start Guide
IIC or Ex ib IIC of the assembly is determined by the level of protection of the
transmitter. The equipment category is 2 G.
During installation the proper cable and cable gland should be used,
mounted in the conduit (M20, ½-in., ¾-in., etc.).
Special Conditions for Safe Use:
1. Ambient temperature range of sensor assembly with PTFE cable
insulation: -40 to +75 °C, and for Silicon cable insulation: -25 to +75
°C.
2. For versions with an integrally mounted certified intrinsically safe
transmitter:
• The highest minimum ambient temperature as mentioned above
and as mentioned on the transmitter, is decisive. The maximum
ambient temperature (Tamax) is +80 °C.
• The maximum ambient temperature of the assembly is +75 °C or
the maximum ambient temperature as mentioned on the
transmitter -10 K, which ever is smaller.
3. When the process temperature range exceeds the specified ambient
temperature range, it shall be verified by on-site temperature
measurements, taking the worst case conditions into account, that
the service temperature of the connection head and the connection
box does not exceed the ambient temperature range. The
measurement report with the conclusions shall be filed together with
the certificate to prove that this condition is met.
4. From a safety point of view,
• The thermocouple inserts with a nominal tip diameter less than
3.0 mm,
• All inserts with a grounded thermocouple, and
• The RTD inserts with a nominal tip diameter less than 4.8 mm
shall be considered to be connected to ground.
5. Minimum and maximum wire temperature: Silicon -25/+160 °C, PTFE
-40/+180 °C.
6. Maximum transition temperature: +80 °C.
3.5
Quick Start Guide 9
N1 ATEX Increased Safety
Certificate
Standards
Markings
DEKRA 20ATEX0046X
EN 60079-0:2012, EN 60079-7:2007
II 2 G Ex e IIC T6…T1 Gb
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3.6 N7 IECEx Increased Safety
Certificate
Standards
Markings
Increased safety enclosure “e”;
In type of explosion protection Ex e, the degree of protection of at least IP54
to EN 60529 is only achieved if certified Ex e cable entries are used that are
suitable for the application and correctly installed.
The degree of protection of IP66 or IP67 to EN 60529 is only achieved if
certified Exe cable entries are used that are suitable for the application and
correctly installed.
When connection head is used the cover will be locked with a lock screw.
Special Conditions for Safe Use:
1. Ambient temperature range of sensor assembly with PTFE cable
insulation: -40 to +80 °C, and for Silicon cable insulation: -25 to +80
°C.
2. Service temperatures transition: -25 to +80 °C for Silicon wire and -40
to +80 °C for PTFE wire.
3. Service temperatures wire: Silicon -25/+160 °C, PTFE -40/+180 °C.
4. Service temperatures connection box and head: -40 to +80 °C.
5. When the process temperature range exceeds the service
temperature range of the transition part, the connection head, the
connection box and the cable (the maximum ambient temperature
(Tamax) is +80 °C), it shall be verified by on-site temperature
measurements, taking the worst case conditions into account, that
the service temperature of these parts does not exceed the range as
listed above.
IECEx DEK 20.0023X
IEC 60079-0:2011, IEC 60079-7:2006-07
Ex e IIC T6…T1 Gb
6. The measurement report with the conclusions shall be filed together
with the certificate to prove that this condition is met.
7. The sensor assembly with connection head and extension part shall
have a degree of protection of at least IP54, provided by the user
with a thermowell or equivalent component at the process side of
the assembly, or direct mounted sensor.
3.6.1 Electrical data
Thermocouple sensing element
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5 Vdc, 10 mA
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RTD sensing element
Installation instructions
The degree of protection of at least IP 54 to EN 60529 is only achieved if
certified Exe cable glands or conduit entry devices are used that are suitable
for the application and correctly installed.
Unused openings shall be closed by suitable blanking elements.
Inserts with a diameter smaller than 3mm and inserts with not-armored wire
shall be protected against mechanical danger.
For an ambient temperature exceeding 80 °C, heat resistant cables and cable
glands suitable for at least 90 °C shall be used.
During installation the proper certified cable and cable gland should be
used, mounted in the conduit (M20, ½-in., ¾-in., etc.).
For parameters see terminal block U-max: 5 V, I-max: 10 mA p/channel.
Torque values and wire size
For torque values end wire size for terminal blocks, see Examination
Certificate FTZU 04 ATEX 0003U and EN 60079-0:2012 and EN
60079-7:2007, for rail mounted terminals see IEC 60947-1/EN 60947-1.
3.6.2 Thermal data
The maximum surface temperature due to process conditions (Tp) is the
maximum surface temperature of any part of the assembly in contact with
the explosive atmosphere.
The temperature class and the maximum surface temperature of the
assembly depend on Tp, as listed in the table.
5 Vdc, 10 mA
Tp (°C)
80 T6 85
95 T5 100
130 T4 135
195 T3 200
295 T2 300
445 T1 450
>445 - Tp + 5
Quick Start Guide 11
Temperature class of the
assembly
Maximum surface
temperature of the
assembly (°C)
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4 Declaration of Conformity
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Quick Start Guide 13
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Quick Start Guide March 2021
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Quick Start Guide 15
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*00825-0600-2654*
00825-0600-2654, Rev. AD
Quick Start Guide
March 2021
©
2021 Emerson. All rights reserved.
Emerson Terms and Conditions of Sale are
available upon request. The Emerson logo
is a trademark and service mark of
Emerson Electric Co. Rosemount is a mark
of one of the Emerson family of
companies. All other marks are the
property of their respective owners.
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