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Reference Manual
00809-0200-4101, Rev AA
July 2008
A-7
Rosemount 2051
2051L
Limit is flange rating or sensor rating, whichever is lower (see Table A-2).
Static Pressure Limit 2051CD
• Operates within specifications between static line pressures of -14.2 psig
(0.034 bar) and 3626 psig (250 bar)
• For Option Code P9, 4500 psig (310,3 bar)
• Range 1: 0.5 psia to 2000 psig (34 mbar and 137,9 bar)
Burst Pressure Limits 2051C Coplanar or traditional process flange
• 10000 psig (689,5 bar)
2051T
• Ranges 1–4: 11000 psi (758,4 bar)
• Range 5: 26000 psi (1792,64 bar)
Temperature Limits
Process Temperature Limits
At atmospheric pressures and above.
Table A-2. 2051L Flange Rating
Standard Type CS Rating SST Rating
ANSI/ASME Class 150 285 psig 275 psig
ANSI/ASME Class 300 740 psig 720 psig
At 100 °F (38 °C), the rating decreases with
increasing temperature.
DIN PN 10–40 40 bar 40 bar
DIN PN 10/16 16 bar 16 bar
At 248 °F (120 °C), the rating decreases
with increasing temperature.
Ambient
–40 to 185 °F (–40 to 85 °C)
With LCD display
(1)
: –40 to 175 °F (–40 to 80 °C)
Storage
–50 to 230 °F (–46 to 110 °C)
With LCD display: –40 to 185 °F (–40 to 85 °C)
(1) LCD display may not be readable and LCD updates will be slower
at temperatures below -4 °F (-20 °C).
Table A-3. 2051 Process Temperature Limits
2051C
Silicone Fill Sensor
(1)
with Coplanar Flange –40 to 250 °F (–40 to 121 °C)
(2)
with Traditional Flange –40 to 300 °F (–40 to 149 °C)
(2)
with Level Flange –40 to 300 °F (–40 to 149 °C)
(2)
with 305 Integral Manifold –40 to 300 °F (–40 to 149 °C)
(2)
Inert Fill Sensor
(1)
0 to 185 °F (–18 to 85 °C)
(3)
2051T (Process Fill Fluid)
Silicone Fill Sensor
(1)
–40 to 250 °F (–40 to 121 °C)
(2)
Inert Fill Sensor
(1)
–22 to 250 °F (–30 to 121 °C)
(2)
2051L Low-Side Temperature Limits
Silicone Fill Sensor
(1)
–40 to 250 °F (–40 to 121 °C)
(2)