
Instruction Manual Supplement
D104410X012
ATEX Hazardous Area Approvals
™
Fisher
FIELDVUE™ DLC3020f Digital Level
DLC3020f Digital Level Controller
April 2022
Controller for F
OUNDATION
™
Fieldbus
Hazardous Area Classifications and Special Instructions for “Safe
Use” and Installations in Hazardous Locations
Certain nameplates may carry more than one approval, and each approval may have unique installation/wiring
requirements and/or conditions of “safe use”. These special instructions for “safe use” are in addition to, and may
override, the standard installation procedures. Special instructions are listed by approval.
Note
This information supplements the nameplate markings affixed to the product and the DLC3020f quick start guide (D103470X012)
and instruction manual (D103434X012
Always refer to the nameplate itself to identify the appropriate certification.
WARNING
Failure to follow these conditions of “safe use” could result in personal injury or property damage from fire or explosion, or
area re‐classification.
), available from your Emerson sales office or Fisher.com.
Special Conditions for Safe Use
Intrinsically Safe
This apparatus can only be connected to an intrinsically safe certified equipment and this combination must be
compatible regarding the intrinsic safety rules (see electrical parameters in table 1).
Flameproof, Type n
No special conditions for safe use.
Refer to table 1 for additional approval information.
www.Fisher.com

DLC3020f Digital Level Controller
April 2022
Instruction Manual Supplement
D104410X012
Table 1. Approval Information
Certification Certification Obtained Entity Rating Temperature Code
Fieldbus FISCO
Ui ≤ 24 V
≤ 380 mA
Ii
≤ 1.4 W
Pi
Ci ≤ 5 nF
+ 0 mH
Li
- - - - - -
- - - - - -
Ui + 17.5 V
+ 380 mA
Ii
+ 5.32 W
Pi
+ 5 nF
Ci
+ 0 mH
Li
T5 (Tamb ≤ 80_C)
T6 (Tamb
T5 (Tamb ≤ 80_C)
T6 (Tamb
T5 (Tamb ≤ 80_C)
T6 (Tamb
≤ 73_C)
≤ 73_C)
≤ 73_C)
ATEX
II 1 G D
Intrinsically Safe
Ex ia IIC T5/T6 Ga
Dust
Ex ia IIIC T87_C (Tamb
IP66
II 2 G D
Flameproof
Ex d IIC T5/T6 Gb
Dust
Ex tb IIIC T87_C (Tamb
IP66
II 3 G D
Type n
Ex nA IIC T5/T6 Gc
Dust
Ex tc IIIC T87_C (Tamb
IP66
≤ 80_C), T80_C (Tamb ≤ 73_C) Da
≤ 80_C), T80_C (Tamb ≤ 73_C) Db
≤ 80_C), T80_C (Tamb ≤ 73_C) Dc
Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance
of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Fisher and FIELDVUE are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson
Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their
respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not
to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such
products at any time without notice.
Emerson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
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2
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