LD303
Profibus Pressure Transmitter Series
LD303A
The LD303A is a transmitter for absolute pressure measurement. It is based on a field-proven digital capacitive sensor that provides reliable operation and high performance. The digital technology used in the LD303 enables the choice of several types of functions. An easy interface between the field and the control room, superior accuracy, stability and several interesting features that considerably reduce the installation, operation, and maintenance costs. The LD303A is part of Smar's complete 303 series for PROFIBUS PA devices.
LD303D
The LD303D is a transmitter for differential pressure measurement. It is based on a field-proven digital capacitive sensor that provides reliable operation and high performance. The digital technology used in the LD303 enables the choice of several types of functions. An easy interface between the field and the control room, superior accuracy, stability and several interesting features that considerably reduce the installation, operation, and maintenance costs. The LD303D is part of Smar's complete 303 series for PROFIBUS PA devices.
LD303H
The LD303H is a transmitter for high static pressure measurement. It is based on a field-proven digital capacitive sensor that provides reliable operation and high performance. The digital technology used in the LD303 enables the choice of several types of functions. An easy interface between the field and the control room, superior accuracy, stability and several interesting features that considerably reduce the installation, operation, and maintenance costs. The LD303H is part of Smar's complete 303 series for PROFIBUS PA devices.
LD303L
The LD303L is a transmitter for level measurement. It is based on a field-proven digital capacitive sensor that provides reliable operation and high performance. The digital technology used in the LD303 enables the choice of several types of functions. An easy interface between the field and the control room, superior accuracy, stability and several interesting features that considerably reduce the installation, operation, and maintenance costs. The LD303L is part of Smar's complete 303 series for PROFIBUS PA devices.
LD303M
The LD303M is a transmitter for gage pressure measurement. It is based on a field-proven digital capacitive sensor that provides reliable operation and high performance. The digital technology used in the LD303 enables the choice of several types of functions. An easy interface between the field and the control room, superior accuracy, stability and several interesting features that considerably reduce the installation, operation, and maintenance costs. The LD303M is part of Smar's complete 303 series for PROFIBUS PA devices.
LD303S
The LD303S series are transmitters, using sanitary flange on the high side. Their technical specifications are the same contained in the LD303 catalog. The specification for accuracy, drift, and temperature effect are the same as that of the LD303L. The LD303S are transmitters for food and other application where sanitary connections are required. They are used where clear-in-place applications are needed. The process connection can be threaded or clamped (Tri-Clamp), to allow a quick and easy connection and disconnection from the process. Wetted surface finish is 32Ra as standard. These series meets 3A recommendation so that the seal surface is free of crevices where food or bacteria can be collected and the finish is extremely smooth. 3A is the most widely accepted sanitary standard in the food, drug, and beverage industry.
LD303T
The LD303T is a hydrostatic pressure transmitter. It measures static pressure with high accuracy provided by its conical-like shape.
Some Characteristics:
| Communication
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PROFIBUS PA, Digital only, complies with IEC 1158-2 (H1): 31.25 kbit/s and voltage made with bus power
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| Range
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0 to 40 MPa (5800 psi)
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| Rangeability
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Accepts calibration from URL to URL/40
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| Accuracy
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± 0.075% of calibrated span
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| Power Consumption
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Quiescent 12 mA
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| Indicator
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Optional 41/2-digit numerical and 5-character alphanumerical LCD indicator
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| Ambient Temperature Limits
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-40 to 85 ºC (-40 to 185 ºF)
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| Process Temperature Limits
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-40 to 100 ºC (-40 to 212 ºF) (Silicone Oil)
0 to 85 ºC (32 to 185 ºF) (Fluorolube Oil)
-40 to 150 ºC (-40 to 302 ºF) for LD303L
-25 to 85 ºC (-13 to 185 ºF) (Viton O-Rings)
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| Ambient Humidity Limits
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0 to 100% RH
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| Wetted Parts
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Plated carbon steel, 316L SST, Hastelloy C276, Monel or Tantalum
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| Nonwetted Parts
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Injected aluminum with polyester painting or 316 SST
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| Hazardous Area Certification
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Explosion proof, weather proof and intrinsically safe
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| Weight
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3.15 kg (7 lb): all models, except level transmitters: 5.85-9 kg (13-20 lb)
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