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Combined Zero and Span Static
Pressure Effect per 1000 psi (70 bar)
• Applies for model with Stainless Steel
barrier diaphragms
Stability (At Reference Conditions)
Damping Time Constant
Performance Under Rated Conditions - Differential Pressure Measurement - SMG170
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
±0.1.04% of calibrated span.
For URV below reference point (50 inH 2 O), effect equals:
50 inH 2 O
±0.85 ± 0.19
span inH 2 O or ±0.85 ± 0.19
±0.0625% of URL per year.
Adjustable for 0 to 32 seconds digital damping.
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. Specifications valid from –5
to +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 (50 inH 2 O), accuracy equals:
50 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 (50 inH 2 O), accuracy equals:
50 inH 2 O
±0.0125 ± 0.0625
span inH 2 O or ±0.0125 ± 0.0625
span.
In Analog Mode: ±0.1375% of calibrated span.
For URV below reference point (100 inH 2 O), effect equals:
100 inH 2 O
±0.0125 ± 0.125
span inH 2 O or ±0.0125 ±0.125
In Digital Mode: ±0.125% of calibrated span.
For URV below reference point (100 inH 2 O), effect equals:
100 inH 2 O
±0.125
span inH 2 O or ±0.125
(
125 mbar
span mbar
Description
(
125 mbar
span mbar
(
(
)
250 mbar
in % span.
span mbar
34-SM-03-01
Page 11
)
in % span.
)
in % span.
(
)
125 mbar
in %
span mbar
)
250 mbar
in % span.
span mbar
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