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Section 6
6.1
TECHNICAL CHARACTERISTICS
Functional Specifications
Process Fluid
Liquid, gas or steam.
Output Signal and
Protocol Communication
Two-wire, 4-20 mA controlled according to NAMUR NE43 Specification and with superimposed digital
communication (HART Protocol). See the figure below.
Power Supply
12 to 45 Vdc.
Load Limitation
250
0
12
20
30
40
45
1650
1500
1000
500
LO
A
D
[O
h
m
]
4-20mA AND
DIGITAL COMMUNICATION
4-20mA only
OPERATING AREA
POWER SUPPLY [Volt]
Indicator
Optional 4½-digit numerical and 5-character alphanumerical LCD indicator.
Hazardous Area
Certifications
Intrinsic Safe (FM, CSA, NEMKO, DEKRA/EXAM, CEPEL and NEPSI), non-incendive (FM, CSA and
CEPEL), explosion proof (FM, NEMKO and CEPEL) and dust ignition proof (FM).
European Directive
Information
Authorized representative in European Community
Smar Gmbh-Rheingaustrasse 9-55545 Bad Kreuzanach
PED Directive (97/23/EC) – Pressure Equipment Directive
This product is in compliance with the directive and it was designed and manufactured in accordance with
sound engineering practice using several standards from ANSI, ASTM, DIN and JIS.
EMC Directive (2004/108/EC) - Eletromagnetic Compatibility
The EMC test was performed according to IEC standard: IEC61326-1:2006, IEC61326-2-3:2006,
IEC61000-6-4:2006, IEC61000-6-2:2005. For use in environment only.
Keep the shield insulated at the instrument side, connecting the other one to the ground if necessary to
use shielded cable.
ATEX Directive (94/9/EC) – Equipment and protective systems intended for use in potentially
explosive atmospheres.
This product was certified according European Standards at NEMKO and EXAM (old DMT). The certified
body for manufacturing quality assessment is EXAM (number 0158).
LVD Directive 2006/95/EC – Electrical Equipment designed for use within certain voltage limits
According the LVD directive Annex II the equipment under ATEX “Electrical equipment for use in an
explosive atmosphere” directive are excluded from scope from this directive.
The EC declarations of conformity for all applicable European directives for this product can be found
at
www.smar.com
.
Temperature Limits
Temperature Limits
Ambient
-40
to
85 ºC
-40
to 185 ºF
-15
to
85 ºC
-59
to 185 ºF
LD290I
Process
-40
to
100 ºC
-40
to
212 ºF
Silicone Oil
0
to
85 ºC
32
to
185 ºF
Fluorolube Oil
-25
to
85 ºC
-13
to
185 ºF
Viton ‘Ring
-40
to
150 ºC
-40
to
302 ºF
LD290L
-15
to
150 ºC
-59
to
302 ºF
LD290I
Storage
40
to
100 ºC
-40
to
212 ºF
Digital
Display
-20
to
80 ºC
-4
to
176 ºF
Operation
-40
to
85 ºC
-40
to
185 ºF
without damage
Turn-on Time
Performs within specifications in less than 5 seconds after power is applied to the transmitter.
Summary of Contents for LD291
Page 1: ...INTELLIGENT PRESSURE TRANSMITTER LD291 Version 6 MAR 12 L D 2 9 1 M E ...
Page 8: ...LD291 Operation and Maintenance Instruction Manual VIII ...
Page 11: ...Installation 1 3 Figure 1 1 b Dimensional Drawing and Mounting Position for LD291 Sanitary ...
Page 13: ...Installation 1 5 Figure 1 1 d Dimensional Drawing and Mounting Position for LD291 Level ...
Page 36: ...LD291 Operation and Maintenance Instruction manual 3 10 ...
Page 58: ...LD291 Operation and Maintenance Instruction Manual 5 12 ...
Page 70: ...LD291 Operation Maintenance Instruction Manual 6 12 ...
Page 74: ...LD291 Certifications Information A 4 NEMKO and DMT CEPEL ...
Page 76: ...LD291 Certifications Information A 6 CEPEL ...
Page 78: ...LD291 Certifications Information A 8 FM ...
Page 79: ...Appendix A A 9 NEMKO ...
Page 80: ...LD291 Certifications Information A 10 ...