Emerson Rosemount 8800D Series Reference Manual page 107

Specifications and Reference Data
May 2016
Process temperature limits
Standard
–40 to 450 °F (–40 to 232 °C)
Extended
–330 to 800 °F (–200 to 427 °C)
Severe
–330 to 842 °F (–200 to 450 °C)
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Multivariable (MTA option)
–50 to 800 °F (–40 to 427 °C)
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Output signals
4–20 mA digital HART
Superimposed on 4–20 mA signal
Optional scalable pulse output
0 to 10000 Hz; transistor switch closure with adjustable scaling via HART communications;
capable of switching up to 30 Vdc, 120 mA maximum.
Analog output adjustment
Engineering units and lower and upper range values are user-selected. Output is
automatically scaled to provide 4 mA at the selected lower range value, 20 mA at the
selected upper range value. No frequency input is required to adjust the range values.
Scalable frequency adjustment
The scalable pulse output can be set to a specific velocity, volume, or mass
(i.e. 1 pulse = 1 lb). The scalable pulse output can also be scaled to a specific rate of volume,
mass, or velocity (i.e. 100 Hz = 500 lb/hr).
Ambient temperature limits
Operating
–58 to 185 °F (–50 to 85 °C)
–4 to 185 °F (–20 to 85 °C) for flowmeters with local indicator
Specifications and Reference Data
- 157 to 800 °F (-105 to 427 °C) for European Pressure Equipment Directive (PED),
consult factory for lower operating temperatures.
The flowtube and sensor, in remote mount configurations, is functionally rated to
842 °F (450 °C) process temperature. Process temperature may be further
restricted depending on hazardous area options and PED certificates. Consult
applicable certificates for particular installation limits.
Use above 450 °F (232 °C) requires Extended Sensor
®
signal
Reference Manual
00809-0100-4004, Rev DC
99