Emerson Rosemount 2088 Reference Manual page 83
Pressure transmitter with hart revision 5 and 7 selectable protocol
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Also See for Rosemount 2088:
- Reference manual (100 pages) ,
- Quick start manual (52 pages) ,
- Quick start manual (30 pages)
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Appendix A: Specifications and Reference Data
March 2014
Dynamic performance
Total Response Time: 145 milliseconds
Update rate: 20 times per second minimum
A.2.5
Temperature limits
Ambient:
–40 to 185 °F (–40 to 85 °C)
–With LCD display
Storage
–50 to 185 °F (–46 to 85 °C)
–With LCD display: –40 to 185 °F (–40 to 85 °C)
Process
Silicone fill sensor: –40 to 250 °F (–40 to 121 °C)
Inert fill sensor: –22 to 250 °F (–30 to 121 °C)
Process temperatures above 185 °F (85 °C) require derating the ambient limits by a 1.5:1 ratio.
For example, for process temperature of 195 °F (91 °C), new ambient temperature limit is equal
to 170 °F (77 °C). This can be determined as follows: (195 °F - 185 °F) x 1.5 = 15 °F, 185 °F - 15 °F =
170 °F
Humidity limits
0–100% relative humidity
Volumetric displacement
Less than 0.0005 in
Damping
Analog output response time to a step change is user-selectable from 0 to 60 seconds for one
time constant. Software damping is in addition to sensor module response time.
Turn-on time
2.0 seconds, no warm-up required
Transmitter security
Activating the transmitter security function prevents changes to the transmitter configuration,
including local zero and span adjustments. Security is activated by an internal switch.
Failure mode alarm
If self-diagnostics detect a sensor or microprocessor failure, the analog signal will be driven
either high or low to alert the user. High or low failure mode is user-selectable with a jumper on
the transmitter. The values to which the transmitter drives its output in failure mode depend on
whether it is factory-configured to standard or NAMUR-compliant operation. The values for each
are as follows:
(1) If storage temperature is above 85 °C, perform a sensor trim prior to installation.
(2) 220 °F (104 °C) limit in vacuum service; 130 °F (54 °C) for pressures below 0.5 psia.
74
(1)
: -40 to 176 °F (–40 to 80 °C)
(1)
:
3
3
(0,008 cm
)
(1)
(2)
(2)
Appendix A: Specifications and Reference Data
Reference Manual
00809-0100-4108, Rev BA
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