PROFIBUS Pressure Transmitter

The LD293 – PROFIBUS Pressure Transmitter is from the first generation of PROFIBUS-PA devices. It is an economical alternative gage 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 – PROFIBUS Pressure Transmitter 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.

Parameterization and Diagnostics

LD293 – PROFIBUS Pressure Transmitter can be configured using SMAR PROFIBUS View and Simatic PDM and by the FDT (Field Device Tool) and DTM (Device Type Manager) concept tools, such as FieldCare™ and PACTware™. 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.

Have any questions about the product?

Digital only. Complies with IEC 61158-2:2000 (H1): 31.25 kbit/s voltage mode, bus powered.

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.


0 a 25 MPa (3600 psi)


Accepts calibration from URL to URL/40


± 0.075% of calibrated span

Update Output Current



Analysis done by Exida


239 years




With reference and without reference

Access Protection

Yes, by hardware


Yes, by LCD


Optional 4 ½-digit numerical and 5-character alphanumerical LCD indicator

Only Electric Board

Only electronic board with math co-processor high-performance, interchangeable on all models

Update for FOUNDATION fieldbus and PROFIBUS PA

These protocols are easily changed by either replacing the internal electronic board or downloading the firmware. A FOUNDATION fieldbus transmitter can be changed into a HART device by replacing the internal card, and vice versa. A Foundation™ fieldbus device can be changed into a PROFIBUS PA device and vice versa, by simply downloading a new firmware.

Temperature Limits

– 40 a 85°C (-40 a 185 °F)

– 40 a 100°C (-40 a 212 °F) (Silicone Oil)
– 0 a 85°C (32 a 185 °F) (Fluorolube Oil)
-25 a 85 ºC (-13 a 185 º F) (Sealing Rings in Viton)

– 40 a 100°C (-40 a 212 °F)

– 10 a 60 ºC (14 a 140 º F) (In operation)
– 20 a 80°C (-4 a 176 °F)
– 40 a 85°C (-40 a 185 °F) (Not damaged)

Ambient Humidity Limits

0 a 100% RH


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)


Less than 2.0 kg (4 lb)

Country of Origin