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34-SM-03-01
Page 10
Performance Under Rated Conditions - Differential Pressure Measurement - SMA125
Parameter
Upper Range Limit
Turndown Ratio
Minimum Span
Zero Elevation and Suppression
Accuracy (Reference – Includes com-
bined effects of linearity, hysteresis, and
repeatability)
• Applies for model with Stainless Steel
barrier diaphragms
• Accuracy includes residual error after
averaging successive readings.
Zero Temperature Effect per 28°C
(50°F)
• Applies for model with Stainless Steel
barrier diaphragms
Combined Zero and Span Temperature
Effect per 28°C (50°F)
• Applies for model with Stainless Steel
barrier diaphragms
Zero Static Pressure Effect per 1000
psi (70 bar)
• Applies for model with Stainless Steel
barrier diaphragms
SMV 3000 Specifications, continued
±400 inH 2 O (1000 mbar) at 39.2 °F (4 °C) standard reference temperature for
inches of water measurement range.
±400 to 1
±1 inH 2 O (2.5 mbar)
No limit (except minimum span) with ±100% URL.
In Analog Mode: ±0.10% of calibrated span or upper range value (URV),
whichever is greater, - Terminal based.
For URV below reference point (25 inH 2 O), accuracy equals:
25 inH 2 O
±0.025 ± 0.075
span inH 2 O or ±0.025 ± 0.075
In Digital Mode: ±0.075% of calibrated span or upper range value (URV),
whichever is greater, - Terminal based.
For URV below reference point (25 inH 2 O), accuracy equals:
±0.0125 ± 0.0625
span inH 2 O or ±0.0125 ± 0.0625
span.
In Analog Mode: ±0.1125% of calibrated span.
For URV below reference point (50 inH 2 O), effect equals:
50 inH 2 O
±0.0125 ± 0.10
span inH 2 O or ±0.0125 ±0.10
In Digital Mode: ±0.10% of calibrated span.
For URV below reference point (50 inH 2 O), effect equals:
50 inH 2 O
±0.10
span inH 2 O or ±0.10
In Analog Mode: ±0.2625% of calibrated span.
For URV below reference point (50 inH 2 O), effect equals:
50 inH 2 O
±0.1625 ± 0.10
span inH 2 O or ±0.1625 ±0.10
In Digital Mode: ±0.225% of calibrated span.
For URV below reference point (50 inH 2 O), effect equals:
50 inH 2 O
±0.125 ± 0.10
span inH 2 O or ±0.125 ±0.10
±0.24% of calibrated span.
For URV below reference point (50 inH 2 O), effect equals:
50 inH 2 O
±0.05 ± 0.19
span inH 2 O or ±0.05 ± 0.19
Description
25 inH 2 O
(
)
125 mbar
span mbar
(
(
(
)
62 mbar
in % span.
span mbar
(
)
62 mbar
in %
span mbar
(
)
125 mbar
in % span
span mbar
in % span.
(
)
125 mbar
in % span
span mbar
)
125 mbar
in % span
span mbar
)
125 mbar
in % span.
span mbar
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