SMAR ld301 - Page 89

Technical Characteristics
6.5
Physical Specifications
Flange Bolts and Nuts:
Plated carbon steel, Grade 8 or 316 SST
For NACE applications: carbon steel ASTM A193 B7M
Identification Plate:
316 SST
Mounting
a) Flange mounted for Level models.
b) Optional universal mounting bracket for surface or vertical/horizontal 2"- pipe (DN 50).
c) Manifold Valve integrated to the transmitter.
d) Directly on piping for closely coupled transmitter/orifice flange combinations.
Approximate
Weights
3.15 kg (7 lb): all models, except L models.
5.85 to 9.0 kg (13 lb to 20 lb): L models depending on the flanges, extension and materials.
Control Functions
Characteristics
(Optional)
Control Block (PID) and Totalizer (TOT)
Technical Characteristics of High Performance - CODE L1
High Performance option (code L1) is available under the following conditions only:
Application Differential and Gage
Range
D2
D3
D4
-50
-250
-2500
to
to
to
50 kPa
250 kPa
2500 kPa
-200
-36
-360
to
to
to
200 inH
2
O
36 psi
360 psi
M2
M3
M4
-50
-100
-100
to
to
to
50 kPa
250 kPa
500 kPa
-200
-14.5
-14.5
to
to
to
200 inH
2
O
36 psi
360 psi
Diaphragm
Material
316L SST or Hastelloy C276
Fill Fluid
Silicone
Performance Specifications
Reference
Conditions
Span starting at zero, temperature of 25 °C (77 °F), atmospheric pressure, power supply of 24 Vdc, silicone
oil fill fluid, isolating diaphragms in 316L SST and digital trim equal to lower and upper range values.
Accuracy
For range 2:
0.2 URL ≤ span ≤ URL: ± 0.04% of span
0.05 URL ≤ span < 0.2 URL: ± [0.021667+0.003667URL/span]% of span
0.0085 URL ≤ span < 0.05 URL: ± [0.0021+0.004645URL/span]% of span
For ranges 3 or 4:
0.1 URL ≤ span ≤ URL: ± 0.05% of span
0.05 URL ≤ span < 0.1 URL: ± [0.005+0.0045URL/span]% of span
0.0085 URL ≤ span < 0.05 URL: ± [0.0021+0.004645URL/span]% of span
Stability
For range 2: ± 0.05% of URL for 6 months
For range 3: ± 0.075% of URL for 12 months
For range 4: ± 0.1% of URL for 24 months
± 0.2% of URL for 12 years, at 20 °C temperature change and up to 7 MPa (1000 psi) {70 bar} of static
pressure, environment free of hydrogen migration.
Temperature
Effect
From -10 ºC to 50 ºC, protected f
r
om direct sun radiation:
0.2 URL ≤ span ≤ URL: ±[0.018% URL + 0.012% span] per 20 ºC (68 ºF)
0.0085 URL ≤ span < 0.2 URL: ±[0.02% URL + 0.002% span] per 20 ºC (68 ºF)
Static Pressure
Effect
Zero error:
± 0.025% URL per 7 MPa (1000 psi)
The zero error is a systematic error that can be eliminated by calibrating at the operating static pressure.
Span error:
Correctable to ± 0.2% of reading per 7 MPa (1000 psi).
NOTES
Hastelloy is a trademark of the Cabot Corp.
Monel is a trademark of International Nickel Co.
Viton and Teflon are trademarks of E. I. DuPont
de Nemours & Co.
Inert is a trademark of Hooker Chemical Corp.
Halocarbon is a trademark of Halocarbon.
HART
®
is a trademark of HART
®
communication Foundation.
Smar Pressure Transmitters are protected by
US patent number 6,433,791