Rosemount 3095 - Performance Specifications

Rosemount Model 3095 Multivariable
™
Level Controller
6-4
PERFORMANCE
SPECIFICATIONS
(Zero-based spans, reference conditions, silicone oil fill, 316 SST
isolating diaphragms.)
Level Accuracy
± 0.1% of span (assume the process density is constant and rangedown
is 1:1 to 10:1) Differential Pressure.
Range 2: 0–2.5 to 0–250 inH
2
O (0–0.62 to 0–62.2 kPa) (100:1
rangeability is allowed).
Range 3: 0–10 to 0–830 inH
2
O (0–2.48 to 0–206 kPa) (83:1 rangeability
is allowed).
Reference Accuracy
(including Linearity, Hysteresis, Repeatability)
±0.075% of span for spans from 1:1 to 10:1 of URL.
For rangedowns greater than 10:1 of URL,
Ambient Temperature Effect per 50 °F (28 °C)
±(0.025% of URL + 0.175% of span) spans from 1:1 to 30:1.
±(0.035% of URL – 0.125% of span) spans from 30:1 to 100:1.
Static Pressure Effects
Zero error = ±0.10% of URL per 1,000 psi (6894 kPa).
Span error = ±0.20% of reading per 1,000 psi (6894 kPa).
Stability
±0.1% of URL for 12 months.
Process Temperature (RTD)
Sensor errors caused by the RTD are not included. The level controller
is compatible with any PT100 RTD conforming to IEC 751 Class B,
which has a nominal resistance of 100 ohms at 0 °C and
∝ = 0.00385.
Examples of compatible RTDs include the Rosemount Series 68 and 78
RTD Temperature Sensors.
Range
–40 to 1200 °F (–40 to 649 °C).
Accuracy (including Linearity, Hysteresis, Repeatability)
±1.0 °F (0.56 °C).
Ambient Temperature Effects per 50 °F (28 °C)
±0.72 °F (0.40 °C) for process temperatures from –40 to 185 °F
(–40 to 85°C).
±(1.28 °F (0.72 °C) + 0.16% of reading) for process temperatures from
185 to 1200 °F (85 to 649 °C).
Stability
±1.0 °F (0.56 °C) for 12 months.
Accuracy 0.025 0.005
URL
Span
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