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34-ST-03-64
Page 7
Performance Under Rated Conditions * - Model STR13D (0-5 to 0-100 psid)
Parameter Description
Upper Range Limit ** psid
bar
100
7
Minimum Span psid
bar
5
0.35
Turndown Ratio
20 to 1
Zero Elevation and Suppression
No limit except minimum span within –18% and +100% of URL. Specifications valid from
–5% to 100% of URL.
Accuracy (Reference – Includes
combined effects of linearity,
hysteresis, and repeatability)
•
Stated accuracy does not apply
for models with 2.9 inch
diameter remote seal
diaphragms.
•
Accuracy includes residual error
after averaging successive
readings.
• For FOUNDATION Fieldbus use
Digital Mode specifications. For
HART use Analog Mode
specifications.
In Analog Mode:
±0.1% of calibrated span or upper range value (URV), whichever is
greater, terminal based.
For URV below reference point (30 psi), accuracy equals:
±0.05 + 0.05
()
30 psi
span psi
or ±0.05 + 0.05
()
2 bar
span bar
in % of span
In Digital Mode: ±0.075% of calibrated span or upper range value (URV), whichever is
greater, terminal based.
For URV below reference point (30 psi), accuracy equals:
±0.025 + 0.05
()
30 psi
span psi
or ±0.025 + 0.05
()
2 bar
span bar
in % of span
Combined Zero and Span
Temperature Effect per 28°C
(50°F) ***
In Analog Mode:
±0.33% of span.
For URV below reference point (60 psi), effect equals:
±0.05 + 0.2
60 psi
span psi
⎝
⎛
⎠
⎞
or ±0.05 + 0.28
4 bar
span bar
⎝
⎛
⎠
⎞
In % span
±0.05 + 0.2
60 psi
span psi
⎝
⎛
⎝
⎛
⎠
⎞
⎠
⎞
or ±0.05 + 0.28
4 bar
span bar
⎝
⎛
⎝
⎛
⎠
⎞
⎠
⎞
In % span
In Digital Mode: ±0.305% of span.
For URV below reference point (60 psi), effect equals:
±0.025 + 0.25
60 psi
span psi
⎝
⎛
⎠
⎞
or ±0.025 + 0.28
4 bar
span bar
⎝
⎛
⎠
⎞
In % span
±0.025 + 0.25
60 psi
span psi
⎝
⎛
⎝
⎛
⎠
⎞
⎠
⎞
or ±0.025 + 0.28
4 bar
span bar
⎝
⎛
⎝
⎛
⎠
⎞
⎠
⎞
In % span
* Performance specifications are based on reference conditions of 25°C (77°F), zero (0) static pressure, 10 to 55% RH, and
316L Stainless Steel barrier diaphragm.
** Transmitter URL limit or maximum seal pressure rating, whichever is lower.
*** Specification applies to transmitters with 2 seals only. Apply 1.5 times factor to temperature effect for capillary lengths greater than 10
feet.