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LD290Series
Gage Pressure Transmitters
The LD290 Series are an economical alternative gage pressure
transmitter. It is based on a field-proven capacitive sensor that
provides reliable operation and high performance.
Features:
 0 ~ 125 Pa to 0 ~ 25 MPa- 0 ~ 0.5 inH20 to 0 ~ 3600 psi
- ± 0.075% Accuracy
- 40:1 Rageability
- Wetted parts in 316 SS, Hastelloy
- Totally digital; including sensor, electronics
and communication (Except LD290 - Pressure Transmitter)
- Digital LCD display
- Weather proof, explosion proof
and intrinsically safe
- Self diagnostics
- Four options of technology
- Updating time of output current in 100 ms;
- With high performance mathematical co-processor;
- Digital electronics and sensor;
- Weather proof, explosion proof and intrinsically safe;
- FMEDA (failure Modes, Effects and Diagnostic Analysis);
- MTBF (Mean Time Between Failures) of 239 years;
- MTTR (Mean Time to Repair) of 18 minutes;
- MTTF (Mean Time to Failure) of 239 years;
- Applicable in safety areas according to SIL (Safety Integrity Level) requirements;
- Write protection by hardware;
- Designed and manufactured according to ISO 9001 standards.
- Updating time of output current in 100ms;
- Improved performance due to dedicated math co-processor;
- FMEDA (Failure Modes, Effects and Diagnostic) Analysis;
- MTBF (Mean Time Between Failures) of 239 years;
- MTTR (Mean Time to Repair) of 18 minutes;
- MTTF (Mean Time to Failure) of 239 years;
- Applicable in safety areas according to SIL (Safety Integrity Level) requirements;
- Write protection by hardware;
- Designed and manufactured according to ISO 9001 standards.
- Zero, span and damping adjustment through HART® local switches (only if fitted
with display);
- Easy update for FOUNDATIONTM fieldbus and PROFIBUS PA technologies.
- Instantiation and deletion of function blocks;
- Network master capability;
- Easy update for HART® and Profibus PA technologies.
- Use of the Analog Input function;
- Easy firmware upgrade (via Flash Memory Interface);
- Easy update to FOUNDATIONTM fieldbus and HART® protocol.
Transmitters Types:
- Gage Pressure – LD290:
The model LD290 is a pure 4-20 mA transmitter. Even though it has only analog input, its
microprocessor-based electronics allow for total interchangeability with SMAR capacitive sensors. It
automatically corrects sensor characteristics changes caused by temperature fluctuations.
- Gage Pressure - LD291, LD292 e LD293:
The models LD291, LD292 and LD293 offer digital communication based in HART®, FOUNDATIONTM
fieldbus and PROFIBUS PA - protocols, simplifying calibration and providing remote diagnostics. Their
microprocessor-based electronic circuit allows for total interchangeability with SMAR capacitive sensors.
 Applications with Manifold Valves:
SMAR Manifold Valves provide all of the necessary safety for field maintenance of LD290 Series
transmitters. Working at pressures up to 6,000 psi, they are easy to handle and lighter than others in
the market.
Pressure and leakage tests carried out in 100% of the valves, also for models mounted
on the transmitter. For further information, please see the SMAR Manifold Valves Catalog.
Applications with Sanitary Transmitters:
 LD290S, LD291S, LD292S and LD293S are specially designed for food and other applications where sanitary connections are required. With threaded or “tri-clamp” connections, it allows for easy and quick maintenance and cleaning. Tri-clamp and other connections are compliant to 3A-7403 standard for food grade applications.
For further information, see the SMAR SR301 Series Catalog.
Parameterization and Diagnostics
Only configurable using magnetic tool if device is fitted
with display.
LD291 (HART® protocol) 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 AMS™, FieldCare™, PACTware™,
HHT275 and HHT375, PRM Device Viewer. For LD291
management and diagnostics, AssetView ensures
continuous information monitoring.
* Requires HPI311.
LD292 utilizes the FOUNDATIONTM fieldbus H1 protocol, an
open technology that allows any H1 enabled configuration
tool to configure this device.
Syscon (System Configuration Tool) is a software
tool used to configure, maintain and operate the field
devices. Syscon offers efficient and friendly interaction
with the user, using Windows NT version 4.0 or later,
Windows 2000 and Windows XP.
Configuration tools such as AMSTM, FieldCare™
and HHT375 can configure LD292 devices. DD
(Device Description) and CF (Capability File) files
can be downloaded at either the SMAR or Fieldbus
FOUNDATIONTM website.
LD292 supports complex strategies configurations due to
the high capacity and variety of dynamic instantiable
function blocks. Seventeen different types of function
blocks are supported, and up to 20 function blocks can be
running simultaneously.
Maintenance procedures with AssetView diagnostics and
status information from FOUNDATIONTM fieldbus result in a safe
plant with higher availability.
LD293 (PROFIBUS PA protocol) can be configured using SMAR ProfibusView and Simatic PDM and by the FDT
(Field Device Tool) and DTM (Device Type Manager)
concept tools, such as FieldCare™ and PACTwareTM.
It can also be integrated by any PROFIBUS System
using the GSD file.
PROFIBUS PA also has quality and diagnostic information,
improving plant management and maintenance. The
EDDL and DTM are available in SMAR website. Conforms
to profile 3.0.
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