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Transmitter's
Applications:
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Differential
Pressure - LD300D and
LD300H Series
Pressure is applied to high and low sides and differential
pressure is measured. High static pressure is supported
by LD300H models.
Flow
- LD300D and LD300H Series
The differential pressure is generated by a primary flow
element and the square root function supplies the flow measurement.
Absolute
Pressure - LD300A Series
The pressure is measured at the high side of the transmitter
and the low side is at zero absolute reference due to a
sealed chamber with vacuum applied.
Gage
Pressure - LD300M Series
The pressure is measured at the high side of the transmitter
and the low side is open to the atmosphere, providing true
local atmospheric reference.
Level
- LD300L Series
The transmitter has a flange mounted unit with a flush diaphragm
for direct installation on vessels. Extended diaphragms
are also available.
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Features:
- +- 0.04% high performance
option;
-
+- 0.2%
of URL stability guarantee for 12 Years;
-
120:1 rangeability;
-
Span as small
as 50 Pa (0.2 inH2O) up to a range limit of 40 MPa (5800 psi);
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Up to 52 MPa
static pressure (7500 psi);
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Direct digital
capacitance sensing (no A/D conversion);
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True non-interactive
zero and span;
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Local zero and
span adjustment;
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Remote calibration
and parameterization;
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Transfer functions:
linear, V x, V x and V x ;
-
Tank linearization;
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Alphanumerical
LCD indication;
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Small and lightweight;
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Explosion proof
and weather proof housing approved (IP67);
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Intrinsically
safe certification;
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Signal simulation
for loop tests;
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Non-volatile
flow totalization;
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Configurable
user unit;
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Configurable
local adjustment;
-
EMC (Electromagnetic
Compatibility) according to IEC 61000-6-2, IEC 61000-6-4 and
IEC 61326;
-
Write protection
function;
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Three protocols
options: HART®, FoundationTM Fieldbus, PROFIBUS
PA.
- Supported by DD, DDL and FDT/DTM
For all features, technical characteristics,
performance, specifications and ordering code, see LD300
Series catalog.
| Application
with Remote Seals: |
LD300 Series
can be assembled with separate diaphragm seals in either
one or both sides of the sensor. SR301 is a remote seal
designed for chemical and thermal isolation. SR301 options
include: flanged "T", flush connection, threaded,
sanitary and flanged with extension.
Typical applications for LD300 Series with remote seals:
- Corrosive process fluid;
- Suspended solids or
viscous process fluid;
- Process fluids that
may freeze or solidify;
- Process temperatures
higher than supported by transmitters;
- Replaces impulse lines
and condensate legs;
- Bubble system.
See the Smar
SR301 Series catalog for further information regarding
application and specification.
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| Application
with Sanitary Connections: |
LD300S Series
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. The flush connection
enables deposits removal without disconnecting the seal.
Tri-clamp and other connections are compliant to 3A (74-02)
standard for food grade applications. For further information,
see the Smar SR301 Series Catalog.
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| Application
with Manifold Valves: |
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Smar manifold valves provide
all of the necessary safety for field maintenance of LD300
Series transmitters. Working at pressures up to 6,000 psi,
they are easy to handle and lighter than others in the market.
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| Programming
& Diagnostics |
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LD300
Series are
available in three different technologies: HART®
(LD301), FoundationTM Fieldbus (LD302) and PROFIBUS PA (LD303).
These instruments
can be configured with Smar software and other manufacturer
configuration tools.
Local adjustment
is available in all LD300 Series. It is possible to configure
zero and span, totalization, set point and other control
functions using the magnetic screwdriver.
Smar has developed Asset View, which is a user-friendly
Web Tool that can be accessed anywhere and anytime using
an Internet browser. It is designed for management and diagnostics
of field devices to ensure reactive, preventive, predictive
and proactive maintenance.
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