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LD293
Profibus Pressure Transmitter
The
LD293 is from the first generation of PROFIBUS-PA devices. It is an
economical alternative gauge pressure transmitter. It is based on a
field-proven capacitive sensor that provides reliable operation and
high performance.
This
lightweight design eliminates the need of mounting brackets and transmitter
support in many applications. Its microprocessor-based electronics allow
for total interchangeability with SMAR capacitive sensors, correcting
automatically sensor characteristic changes caused by temperature fluctuation.
The
digital technology used in the LD293 enables the choice of several types
of transfer functions, an easy interface between the field, the control
room and several interesting features that considerably reduce the installation,
operation and maintenance costs.
Some Characteristics:
Output |
Digital only. Complies with IEC 61158-2:2000 (H1): 31.25 kbit/s voltage mode, bus powered. |
Range |
0 to 25 MPa (3600 psi) |
Rangeability |
Accepts calibration from URL to URL/40 |
Accuracy |
± 0.075% of calibatred span |
Power Supply |
Bus powered: 9 to 32 Vdc.
Quiescent current consumption: 12 mA
Output impedance: nonintrinsic safety from 7.8 kHz - 39 kHz should be greater or equal to 3 kOhm.
Intrinsic safety output impedance (assuming an IS barrier in the power supply) from 7.8 kHz - 39 kHz should be greater or equal to 400 Ohm. |
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 HART and FOUNDATION fieldbus |
These protocols are easily changed by either replacing the internal electronic board or downloading the firmware. A PROFIBUS PA transmitter can be changed into a HART device by replacing the internal card, and vice versa. A PROFIBUS PA device can be changed into a FOUNDATION fieldbus device and vice versa, by simply downloading a new firmware. |
Temperature Limits |
Ambient: -40 to 85°C (-40 a 185 °F)
Process: -40 to 100°C (-40 a 212 °F) (Silicone Oil)
0 to 85°C (32 a 185 °F) (Inert Fluorolube Oil)
-25 to 85 ºC (-13 to 185 ºF) (Viton O´Ring)
Storage: -40 to 100°C (-40 to 212 °F)
Display: -20 to 80°C (-4 to 176 °F)
-10 to 60 ºC (14 to 140 ºF) (In Operation)
-40 to 85°C (-40 to 185 °F) (Without Damages) |
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) |
Smar Device Library CD contains several libraries that will be used in the integration of the Smar equipments in several applications
(of different communication protocols as: HART, Profibus and Foundation FieldBus).
Library Lists:
Profibus:
- DD Profibus
- GSD Files Support
- DTM Profibus
- LD303DTM version 2.023
- FY303DTM version 2.03
- TT303DTM version 2.03
- IF303DTM version 2.03
- DT303DTM version 2.04
- FI303DTM version 2.02
- FP303DTM version 2.01
- TP303DTM version 2.01
- TT423DTM version 2.00
- LD293DTM version 1.01
- DF73DTM version 1.01
For download DD, DTM and GSD files of SMAR products, click here.
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