Smar HART Pressure Transmitter LD291
The model LD291 - HART® Pressure Transmitter 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.
Parameterization and Diagnostics
LD291 - HART® Pressure Transmitter can be configured by:
•SMAR CONF401 for Windows;
•SMAR DDCON100 for Windows;
•SMAR HPC301 and HPC401 for several models of Palms*;
•Other manufacturers' configuration tools based on DD (Device Description) or DTM (Device Type Manager), such as AMSTM, FieldCareTM, PACTwareTM, HHT275 and HHT375, PRM Device Viewer. For LD291 management and diagnostics, AssetView ensures continuous information monitoring.
|
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 |
± 0.075% 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: |
|
Process Temperature Limits |
-40 to 100 ºC (-40 to 212 ºF) (Silicone 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) |
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