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LD291-M Gauge Pressure Transmitter
Brand: Smar International Corp
Features
- Pressure Type: Gauge
- Pressure Range: 0.625 bar to 250 bar, 5.02 inches WC to 10054.5 inches WC, 90.65 psi to 3625.94 psi.
- Output: HART Protocol, 2-Wire, 4-20 mA
- Power Supply: 12 to 45 Vdc.
- Display: 4-1/2 digit numerical and 5-Character alphanumerical LCD indicator
- Temperature:
- Ambient: -40°C to 85°C (-40°F to 185°F)
- Process: -40°C to 150°C (-40°F to 302°F)
- Accuracy: ± 0.75% of span
- Stability: ± 0.15% of URL per 5 years
- Process Connection: 1/2"-14 Female NPT, M20 X 1.5, G 1/2 A DIN 16288 - Form B, G1/2 DIN 16288 - Form D, 1/2 - 14 Male NPT
- Electrical Connection:
- 1/2"-14 NPT
- 1/2 - 14 NPT X 3/4 NPT 316 Stainless Steel with Adapter
- 1/2 - 14 NPT X 3/4 BSP 316 Stainless Steel with Adapter
- 1/2 - 14 NPT X 1/2 BSP 316 Stainless Steel with Adapter
- 1/2-1/2 NPTF 316 Stainless Steel with Adapter
- 1/2 - 3/4 NPTF 316 Stainless Steel with Adapter
- Materials of Construction:
- Wetted Parts: Hastelloy® C-276 or 316 Stainless Steel
- Fill Fluid: Silicone or Fluorolube Oil
- Cover O-Ring: Buna-N
- Mounting Bracket: Plated Carbon or 316 Stainless Steel
- Environmental Certifications: NEMA 4, 4X, IP66, IP66W
- CSA Intrinsically Safe, Non-Incendive, Explosion Proof, Dust Ignition Proof
- Order includes a SMAR Magnetic Screwdriver for adjustments if the LCD Display option is selected in the configuration below
1 - 12 of 109 Part Numbers
D291-M41I-1G-A0
LD291-M21-01-00-I3
- Base Model - LD291-M2
- Diaphragm Material & Fill Fluid - 316L Stainless Steel, Silicone Oil
- Display - None
- Mounting - None
LD291-M21-01-01-I3
- Base Model - LD291-M2
- Diaphragm Material & Fill Fluid - 316L Stainless Steel, Silicone Oil
- Display - None
- Mounting - Carbon Steel 2" Bracket & Accessories
LD291-M21-01-02-I3
- Base Model - LD291-M2
- Diaphragm Material & Fill Fluid - 316L Stainless Steel, Silicone Oil
- Display - None
- Mounting - 316 Stainless Steel 2" Bracket & Accessories
LD291-M21-11-00-I3
- Base Model - LD291-M2
- Diaphragm Material & Fill Fluid - 316L Stainless Steel, Silicone Oil
- Display - LCD Display
- Mounting - None
LD291-M21-11-01-I3
- Base Model - LD291-M2
- Diaphragm Material & Fill Fluid - 316L Stainless Steel, Silicone Oil
- Display - LCD Display
- Mounting - Carbon Steel 2" Bracket & Accessories
LD291-M21-11-02-I3
- Base Model - LD291-M2
- Diaphragm Material & Fill Fluid - 316L Stainless Steel, Silicone Oil
- Display - LCD Display
- Mounting - 316 Stainless Steel 2" Bracket & Accessories
LD291-M21I-01-00-I3
- LD291: SMAR Transmitter (4-20mA HART)
- M2: Range Limits Min/Max Span: 5 to 202 Inches H2O
- 1: Diaphragm Material 316L SST w/ Silicone Oil
- I: Process Connection Material 316L SST
- 0: Local Indicator Without
- 1: Process Connection 1/2"-14 FNPT
- 0: Electrical Connection - 1/2" FNPT
- 0: Mounting Bracket - No Mounting Bracket
- I3: Identification Plate - CSA Approved Explosion Proof and Intrinsically Safe
LD291-M21I-01-01-I3
- Base Model - LD291-M2
- Diaphragm Material & Fill Fluid - 316L Stainless Steel, Silicone Oil
- Process Connection Material - 316 Stainless Steel
- Display - None
- Mounting - Carbon Steel 2" Bracket & Accessories
LD291-M21I-01-02-I3
- Base Model - LD291-M2
- Diaphragm Material & Fill Fluid - 316L Stainless Steel, Silicone Oil
- Process Connection Material - 316 Stainless Steel
- Display - None
- Mounting - 316 Stainless Steel 2" Bracket & Accessories
LD291-M21I-11-00-I3
- LD291: SMAR Transmitter (4-20mA HART)
- M2: Range Limits Min/Max Span: 5 to 202 Inches H2O
- 1: Diaphragm Material 316L SST w/ Silicone Oil
- I: Process Connection Material 316L SST
- 1: Local Indicator With
- 1: Process Connection 1/2"-14 FNPT
- 0: Electrical Connection - 1/2" FNPT
- 0: Mounting Bracket - No Mounting Bracket
- I3: Identification Plate - CSA Approved Explosion Proof and Intrinsically Safe
LD291-M21I-11-01-I3
- LD291: SMAR Transmitter (4-20mA HART)
- M2: Range Limits Min/Max Span: 5 to 202 Inches H2O
- 1: Diaphragm Material 316L SST w/ Silicone Oil
- I: Process Connection Material 316L SST
- 1: Local Indicator With
- 1: Process Connection 1/2"-14 FNPT
- 0: Electrical Connection - 1/2" FNPT
- 1: Mounting Bracket - Carbon Steel Mounting Bracket
- I3: Identification Plate - CSA Approved Explosion Proof and Intrinsically Safe
1 - 12 of 109 Part Numbers
Specifications
Brand
Accuracy
- Insertion Transmitter: ± 0.2 % of Span
- Level Transmitter: ± [0.0504 + 0.0047 URL/Span] % of Span (For Span = 0.1 URL)
- Ranges 2, 3, 4, 5: ± [0.0375 + 0,00375 URL/Span] % of Span (For Span = 0.1 URL)
Ambient Temperature Range
- -40° to 85° C (-40° to 185° F)
Approvals & Certifications
- 3A Sanitary
- CEPEL
- CRN
- CSA
- EXAM
- FM
- GOST
- NEMKO ATEX
- NEPSI
Communication
- HART: 2-Wire, 4-20 mA According to NAMUR NE43 Specification, with Superimposed Digital Communication.
Configuration
- HART: by Digital Communication Using the Configuration Interface CONF301 or the HART Pocket Configurator HPC301. Basic Configuration May be Done Using Local Adjustment Magnetic Tool if Device is Fitted with Display.
Damping Adjustment
- User Configurable from 0 to 128 seconds (via Digital Communication)
Diaphragm Material
- Hastelloy C-276
- Monel 400
- Tantalum
Display
- 4-1/2-Digit Numerical & 5-Character Alphanumerical LCD Indicator
Electrical Connectors
- 1/2” NPT
Electromagnetic Interference Effect
- Approved According to IEC 61326-1: 2006, IEC 61326-2-3: 2006, IEC 61000-6-4: 2006, IEC 61000-6-2: 2005
Enclosure Finish
- Polyester (Gray Munsell N 6.5) Paint
Enclosure, Body Material
- 316 Stainless Steel
- Injected Aluminum
Environmental Protection
- IP66
- IP68
- NEMA 4X, 6P / IP66, 68
- NEMA 6P
Fill Material
- Fluorolube Oil
- HaloCarbon 4.2 Oil
- Krytox Oil
- Silicone Oil
Flange Material
- 304 Stainless Steel
- 316 Stainless Steel
- Carbon Steel
Humidity
- 0 to 100 % Relative Humidity
Input
- HART: 12-45 Vdc
Media
- Gas
- Liquids & Gases
- Steam
Metric Connection
- M20 x 1.5 Male
Mounting
- 316 Stainless Steel Bracket & Accessories
- Carbon Steel Bracket & Accessories
- None
Mounting Position Effect
- Zero Shift of up to 250 Pa (1”H₂O)
NPT Connection
- 1/2” NPT Female
- 1/2” NPT Male
O-Ring Material
- Buna-N
Operating Temperature - Display
- -20° to 85° C (-4° to 185° F)
Output
- 4-20 mA
Overpressure & Static Pressure Limits
- psi: 2,000 (bar: 137.9, MPa: 14) for Ranges 2, 3, & 4
- psi: 4,500 (bar: 310.3, MPa: 31) for Range 5
Power Supply Effect
- ± 0.005 % of Calibrated Span Per Volt
Pressure Range
- bar: 0.625 to 250
- Inches WC: 5.02 to 10,054.5
- kPa: 62.5 to 25,000
- psi: 90 to 3,626
Pressure Type
- Gauge
Process Temperature
- -40° to 150° C (-40° to 302° F)
Stability
- ± 0.15 % of URL for 5-Years
Storage Temperature
- -40° to 100° C (-40° to 212° F)
Temperature Effect
- ± [0.023 % of URL + 0.045 % of Span], Per 20° C (68° F) for Span = 0.2 URL
- ± [0.023 % of URL + 0.045 % of Span], Per 20° C (68° F) for Span < 0.2 URL
- ± [0.02 % of URL + 0.06 % of Span], Per 20° C (68° F) for Span > = 0.2 URL
Volumetric Displacement
- > 0.15 cm³ (0.01”³)
Wetted Materials
- 316 Stainless Steel
- Hastelloy C-276
Documentation
Product Manuals
Application Considerations
Catalogs
Certifications & Approvals
- Certifications & Approvals - Smar CSA Certification pdf 63 KB
- Certifications & Approvals - Smar LD290 ATEX 2004 pdf 43 KB
- Certifications & Approvals - Smar LD291 EXAM May 2001 pdf 1.2 MB
- Certifications & Approvals - Smar LD291 FM Sep 1997 pdf 3.3 MB
- Certifications & Approvals - Smar NEPSI Nov 2010 pdf 859 KB
- SMAR Alberta CRN pdf 109 KB
- SMAR BC CRN pdf 3.2 MB
- SMAR Manitoba CRN pdf 255 KB
- SMAR NWT CRN pdf 266 KB
- SMAR Saskatchewan CRN pdf 216 KB