1. General Introduction
Rosemount 2051L level transmitter is an economical type for Liquid level measurement with SIL2/3 safety certified, maximum operating Pressure is up to 300 psi (20,68 bar), process temperature from -105 to 205°C, 316L SST, Alloy C-276, Tantalum Wetted Material and 4-20mA HART, Wireless HART, FOUNDATION Fieldbus, PROFIBUS, 1-5 V Low Power HART communication protocol are selectable. Lower pressure side also be connected via remote diaphragm seal 1199 seal.
2. Range & sensor limits
Range | Minimum span | Lower Range Limit (LRL) | Upper Range Limit (URL) |
2 | 2.5 inH2O (6.2 mbar) | –250.00 inH2O (–0,62 bar) | 250.00 inH2O (0,62 bar) |
3 | 10 inH2O (24.9 mbar) | –1000.00 inH2O (–2.49 bar) | 1000.00 inH2O (2.49 bar) |
4 | 3 psi (207mbar) | –300 psi (–20.7 bar) | 300 psi (20.7 bar) |
3. Basic code selection of 2051L pressure transmitter
Main Code | Suffix Codes | Description | |||||||||
2051L | Liquid level transmitter | ||||||||||
Pressure range | 2 | –250 to 250 inH2O (–0,6 to 0,6 bar) | |||||||||
3 | –1000 to 1000 inH2O (–2,5 to 2,5 bar) | ||||||||||
4 | –300 to 300 psi (–20,7 to 20,7 bar) | ||||||||||
Transmitter output | A | 4–20 mA with digital signal based on HART Protocol | |||||||||
F | FOUNDATION Fieldbus Protocol | ||||||||||
W | PROFIBUS PA Protocol | ||||||||||
X | Wireless | ||||||||||
M | Low-power, 1–5 V dc with digital signal based on HART Protocol | ||||||||||
Process connection size | G | 2-in./DN 50, 316L SST | |||||||||
H | 2-in./DN 50, Alloy C-276 | ||||||||||
J | 2-in./DN 50, Tantalum | ||||||||||
A | 3-in./DN 80, 316L SST | ||||||||||
B | 4-in./DN 100, 316L SST | ||||||||||
C | 3-in./DN 80, Alloy C-276 | ||||||||||
D | 4-in./DN 100, Alloy C-276 | ||||||||||
E | 3-in./DN 80, Tantalum | ||||||||||
F | 4-in./DN 100, Tantalum | ||||||||||
Extension length (high side) | 0 | None, flush mount | |||||||||
2 | 2-in./50 mm | ||||||||||
4 | 4-in./100 mm | ||||||||||
6 | 6-in./150 mm | ||||||||||
Mounting flange size, rating, material (high side) | M | 2-in. ANSI/ASME B16.5 Class 150 CS | |||||||||
A | 3-in. ANSI/ASME B16.5 Class 150 CS | ||||||||||
B | 4-in. ANSI/ASME B16.5 Class 150 CS | ||||||||||
N | 2-in. ANSI/ASME B16.5 Class 300 CS | ||||||||||
C | 3-in. ANSI/ASME B16.5 Class 300 CS | ||||||||||
D | 4-in. ANSI/ASME B16.5 Class 300 CS | ||||||||||
X | 2-in. ANSI/ASME B16.5 Class 150 SST | ||||||||||
F | 3-in. ANSI/ASME B16.5 Class 150 SST | ||||||||||
G | 4-in. ANSI/ASME B16.5 Class 150 SST | ||||||||||
Y | Displayed ANSI/ASME B16.5 Class 300 SST | ||||||||||
H | 3-in. ANSI/ASME B16.5 Class 300 SST | ||||||||||
J | 4-in. ANSI/ASME B16.5 Class 300 SST | ||||||||||
Q | DN 50 PN 10-40 per EN 1092-1 CS | ||||||||||
R | DN 80 PN 40 per EN 1092-1 CS | ||||||||||
K | DN 50 PN 1040 per EN 1092-1 SST | ||||||||||
T | DN 80 PN 40 per EN 1092-1 SST | ||||||||||
Seal fill fluid (high side) | A | Syltherm XLT, –157 to 293 °F (–105 to 145°C) | |||||||||
C | Silicone 704, 32 to 401 °F (0 to 205 °C) | ||||||||||
D | Silicone 200, –49 to 401 °F (–45 to 205 °C) | ||||||||||
F | Silicone 200 for vacuum applications limits | ||||||||||
H | Inert (halocarbon), 5 to 401 °F (–15 to 205 °C) | ||||||||||
G | Glycerin and water, –49 to 320 °F (–45 to 160 °C) | ||||||||||
L | Silicone 704 for vacuum applications limits | ||||||||||
N | Neobee M-20, 5 to 401 °F (–15 to 205 °C) | ||||||||||
P | Propylene glycol and water, 5 to 203 °F (–15 to 95 °C) | ||||||||||
Sensor module configuration, flange adapter (low side) | 1 | Gage SST | |||||||||
2 | Differential SST | ||||||||||
3 | Tuned-System™ with remote seal None | ||||||||||
Sensor module diaphragm material, sensor fill fluid (low side) | 1 | 316L SST Silicone | |||||||||
2 | Alloy C-276 (SST valve seat) Silicone | ||||||||||
7 | Alloy C-276 (alloy C-276 valve seat) Silicone | ||||||||||
A | 316L SST Inert (halocarbon) | ||||||||||
B | Alloy C-276 (SST valve seat) Inert (halocarbon) | ||||||||||
G | Alloy C-276 (alloy C-276 valve seat) Inert (halocarbon) | ||||||||||
O-ring | A | Glass-filled PTFE | |||||||||
Housing material | A | Aluminum ½–14 NPT | |||||||||
B | Aluminum M20 x 1.5 | ||||||||||
J | SST ½–14 NPT | ||||||||||
K | SST M20 x 1.5 | ||||||||||
P | Engineered polymer No conduit entries | ||||||||||
D | Aluminum G½ | ||||||||||
M | SST G½ | ||||||||||
Optional codes | Optional codes [ As per optional table of 3051C] |
4. Typical mounting & dimensions for 2051L pressure transmitter
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