Emerson Rosemount 1408H, Справочное руководство, Страница: 71 / 98

A Specifications and reference data
A.1 Performance specifications
A.1.1 General
Reference conditions
• Measurement target: Stationary metal plate, no disturbing objects
• Temperature: 59 to 77 °F (15 to 25 °C)
• Ambient pressure: 14 to 15 psi (960 to1060 mbar)
• Relative humidity: 25-75%
• Damping: Default value, 2 s
Instrument accuracy (under reference conditions)
±0.08 in. (±2 mm)
(1)
Repeatability
±0.04 in. (±1 mm)
Ambient temperature effect
±0.04 in. (±1 mm)/10 K
Sensor update rate
Minimum 1 update per second (typically 5 updates per second)
Maximum level rate
200 mm/s
A.1.2 Measuring range
Maximum measuring range
33 ft. (10 m)
(2)
(1) Refers to inaccuracy according to IEC 60770-1 when excluding installation dependent offset. See the IEC 60770-1 standard
for a definition of radar specific performance parameters and if applicable corresponding test procedures.
(2) Note that a combination of adverse process conditions, such as heavy turbulence, foam, and condensation, together with
products with poor reflection may affect the measuring range.
Reference Manual Specifications and reference data
00809-0100-4480 September 2020
Reference Manual 71