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LD291
Smart Pressure Transmitter 4 to 20 mA + HART

DT300 Series - Transmissores de Densidade

The model LD291 offers digital HART based communication simplifying calibration and providing remote diagnostics. Its microprocessor-based electronics allow for total interchangeability with SMAR capacitive sensor. It automatically corrects sensor characteristic changes caused by temperature fluctuations.

 

Some Characteristics:

Output

Two-wire, 4-20 mA with HART superimposed digital communication signal

Range

0 to 25 MPa (3600 psi)

Rangeability

Accepts calibration from URL to URL/40

Accuracy

± 0.1% of calibatred span

Power Supply

12-45 Vdc

Update Output Current

100 ms

FMEDA

Analysis done by Exida

MTBF

239 years

SIL

Yes

Calibration

With reference and without reference

Access Protection

Yes, by hardware

Diagnostic

Yes, by LCD

Indicator

Optional 41/2-digit numerical and 5-character alphanumerical LCD indicator

Only Electronic Board

Only electronic board with math co-processor high-performance, interchangeable on all models.

Update for FOUNDATION fieldbus and PROFIBUS PA

With the simple exchange of the main electronic board can be easily converted to these digital protocols.

Temperature Limits

Ambient:
- 40 to 85°C (-40 to 185 °F)

Process:
- 40 to 100°C (-40 to 212 °F) (Silicon Oil)
- 0 to 85°C (32 to 185 °F) (Inert Fluorolube Oil)
-25 to 85 ºC (-13 to 185 º F) (Viton O´Ring)

Storage:
- 40 to 100°C (-40 to 212 °F)

Display:
- 10 to 60 ºC (14 to 140 º F) (Operation)
- 20 to 80°C (-4 to 176 °F)
- 40 to 85°C (-40 to 185 °F) (Without Damages)

Process Temperature Limits

-40 to 100 ºC (-40 to 212 ºF) (Silicone Oil)
0 to 85 ºC (32 to 185 ºF) (Fluorolube Oil)

Ambient Humidity Limits

0 to 100% RH

Housing

Injected low copper aluminum with polyester painting or 316 stainless steel housing. According to the NEMA 4X, IP66.

Wetted Parts

316L SST, Hastelloy C276

Nonwetted Parts

Injected aluminum with polyester painting or 316 SST

Hazardous Area Certification

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).

Weight

Less than 2.0 kg (4 lb)

Library Lists:

Hart:
- DD HART (275/375 Programming) - For more details about DDs in 275/375 Programming, contact Hart Foundation (www.Hartcomm.org)
- DTM HART
- LD301DTM version 2.02
- LD291DTM version 2.01
- FY301DTM version 2.03
- TT301DTM version 2.02
- DT301DTM version 2.01
- TP301DTM version 2.01
- LD400DTM version 1.01
- FY400DTM version 1.03

For download DD, DTM and GSD files of SMAR products, click here.

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