Products

SMAR LD292

Foundation Fieldbus Pressure Transmitter

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.

Have any questions about the product?

Output

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.

Range

0 a 25 MPa (3600 psi)

Rangeability

Accepts calibration from URL to URL/40

Accuracy

± 0.075% of calibrated span

Update Output Current

100ms

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

Indication

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

Ambient
– 40 a 85°C (-40 a 185 °F)

Process
– 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)

Stocking
– 40 a 100°C (-40 a 212 °F)

Display
– 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

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)