SMAR LD303, Инструкция по эксплуатации и техническому обслуживанию

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LD303 – Operation and Maintenance Instruction Manual
5.4
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
M2
M3
M4 -50
-250
-2500
-50
-100
-100 to
to
to
to
to
to 50 kPa
250 kPa
2500 kPa
50 kPa
250 kPa
2500 kPa
-200
-36
-360
-200
-14.5
-14.5
to
to
to
to
to
to 200 inH
2
O
36 psi
360 psi
200 inH
2
O
36 psi
360 psi
Diaphragm
Material
316L SST
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
RANGE 2:
0.2 URL
”
span
”
URL:
± 0.04% of span
0.05 URL
”
span < 0.2 URL: ± [0. 0.003667 URL/span]% of span
0.0085 URL
”
span < 0.05 URL: ± [0.0021 + 0.004645 URL /span]% of span
RANGES 3 and 4:
0.1 URL
” span ” URL:
± 0.05% of span;
0.05 URL
”
span < 0.1 URL:
± [0.005 + 0.045 URL/span]% of span
0.0085 URL
”
span < 0.05 URL: ± [0.0021+ 0.004645 URL/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 °C to 50 °C
,
protected from direct sun radiation:
0.2 URL
”
span
”
URL: ± [ 0.018% URL + 0.012% span] per 20 °C (68 °F)
0.0085 URL
”
span < 0.2% URL: ± [0.002% URL + 0.002% span] per 20 °C (68 °F)
Static Pressure
Effect
Zero error:
± 0.025% URL per 7MPa (1000 psi)
The zero error is systematic and can be eliminated by calibrating at the operating static pressure.
Span error:
Correctable to ± 0.2% of reading per 7 MPa (1000 psi)
NOTES
Hasteloy is a trademark of the Cabot Corp.
Monel is a trademark of International Nckel Co.
Viton and Teflon are trademarks of E. I.
DuPunt de Nemours & Co Fluorolube is a trademark of Hooker Chemical Corp.
Halocarbon is a trademark of Halocarbon.
Profibus is a trademark of Profibus International
Smar Pressure Transmitters are protected by US
patent number 6,433,791