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Specifications and Reference Data
September 2017
Reference Manual
00809-0100-4803, Rev GA
Specifications and Reference Data
132
Temperature limits
Humidity limits
0–100 percent relative humidity
Turn-on time
Performance within specifications less than five seconds for
Rosemount 3051SMV (typical) after power is applied to the
transmitter.
Volumetric displacement
Less than 0.005 in
3
(0,08 cm
3
)
Damping
Analog output response to a step change is user-selectable
from 0 to 60 seconds for one time constant. Each variable
can be individually adjusted. This software damping is in
addition to sensor module response time.
Failure mode alarm
If self-diagnostics detect a gross transmitter failure, the
analog signal will be driven offscale to alert the user.
Rosemount standard (default), NAMUR, and custom alarm
levels are available (see
).
High or low alarm signal is software-selectable or
hardware-selectable via the optional switch (option D1).
A.1.3 Physical specifications
Electrical connections
1
/
2
–14 NPT, G
1
/
2
, and M20
⫻
1.5 (CM20) conduit. HART
interface connections fixed to terminal block.
Process connections
1
/
4
–18 NPT on 2
1
/
8
-in. centers
1
/
2
–14 NPT and RC
1
/
2
on 2-in.(50.8 mm),
2
1
/
8
-in. (54.0 mm), or 2
1
/
4
-in. (57.2 mm) centers (process
adapters)
Ambient
–40 to 185 °F (–40 to 85 °C)
with LCD display
(1)
: –40 to 175 °F (–40 to 80 °C)
with option code P0: –20 to 185 °F (–29 to 85 °C)
1.
CD display may not be readable and LCD display updates will be slower at
temperatures below –4 °F (–20 °C).
Storage
–50 to 185 °F (–46 to 85 °C)
with LCD display: –40 to 185 °F (–40 to 85 °C)
with wireless output: –40 to 185 °F (–40 to 85 °C)
Process temperature limits
At atmospheric pressures and above:
Silicone fill sensor
(2)(3)
2.
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)
⫻
1.5 = 15 °F,
185 °F–15 °F = 170 °F
3.
212 °F (100 °C) is the upper process temperature limit for DP Range 0.
with coplanar flange
–
40 to 250 °F (
–
40 to 121 °C)
(4)
4.
220 °F (104 °C) limit in vacuum service; 130 °F (54 °C) for pressures below 0.5
psia.
with traditional flange
–
40 to 300 °F (
–
40 to 149 °C)
5.
–20 °F (–29 °C) is the lower process temperature limit with option code P0.
with level flange
–
40 to 300 °F (
–
40 to 149 °C)
with Rosemount 305
Integral Manifold
–
40 to 300 °F (
–
40 to 149 °C)
Inert fill sensor
6.
32 °F (0 °C) is the lower process temperature limit for DP Range 0.
–
40 to 185 °F (
–
40 to 85 °C)
(7)
7.
For Rosemount 3051SMV_ _ 1, 2, 140 ° F (60 °C) limit in vacuum service.
Table A-4. Alarm Configuration
High alarm
Low alarm
Default
≥
21.75 mA
≤
3.75 mA
NAMUR compliant
(1)
1.
Analog output levels are compliant with NAMUR recommendation NE 43,
see option codes C4 or C5.
≥
22.5 mA
≤
3.6 mA
Custom levels
(2)
2.
Low alarm must be 0.1 mA less than low saturation and high alarm must be
0.1 mA greater than high saturation.
20.2–23.0 mA
3.6–3.8 mA
Содержание 3051S Series
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