The model LD291 - HART® Pressure Transmitter offers digital HART based communication simplifying calibration and providing remote diagnostics. Its microprocessor-based electronics allow for total interchangeability with SMAR capacitive sensor. It automatically corrects sensor characteristic changes caused by temperature fluctuations.
Output | Two-wire, 4-20 mA with HART superimposed digital communication signal. |
Power Supply | 12-45 Vdc |
Range | Capacitive: 0 a 25 MPa (3600 psi) Piezo Resistive: 0 a 70 MPa (10150 psi) |
Rangeability | Accepts calibration from URL to URL/40 |
Accuracy | ± 0.075% of calibatred 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. |
Indicator | Optional 41/2-digit numerical and 5-character alphanumerical LCD indicator. |
Only Eletric Board | Only electronic board with math co-processor high-performance, interchangeable on all models. |
Update for FOUNDATION fieldbus and PROFIBUS PA | With the simple exchange of the main electronic board can be easily converted to these digital protocols. |
Ambient 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) (Anéis de Vedaçao em 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) (No damaged) |
Ambient Humidity Limits | 0 a 100% RH |
Diaphragms Insulators and Process Connection | Aço Inox 316L ou Hastelloy C276 316L SST or Hastelloy C276 Diaphragm available Sanitary model also Monel 400 and Tantalum. |
Housing | Injected low copper aluminum with polyester painting or 316 stainless steel housing. According to the NEMA 4X, IP66. |
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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