Smar Foundation Fieldbus Pressure Transmitter LD292

LD292 - Foundation Fieldbus Pressure Transmitter offers digital Foundation Fieldbus based communication simplifying calibration and providing remote diagnostics. Its microprocessor-based electronics allow for total interchangeability with SMAR capacitive sensors, correcting automatically sensor characteristic changes caused by temperature fluctuation.

LD292 - Foundation Fieldbus Pressure Transmitter utilizes the Foundation™ 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 AMS™, FieldCare™ and HHT375 can configure LD292 devices. DD (Device Description) and CF (Capability File) files can be downloaded at either the SMAR or Fieldbus Foundation™website.

Parameterization and Diagnostics
LD292 - Foundation Fieldbus Pressure Transmitter 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 Foundation™ fieldbus result in a safe plant with higher availability.

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 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	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)

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