SMT3151LT Liquid Level (Pressure/Differential Pressure) Transmitter
Description
The liquid level (pressure/differential pressure) transmitter is a pressure signal measured at the reference side of atmospheric pressure (low pressure side), with one or two ports for flange (or other connection) and process pipe connection.
Working principle:
On the basis of common pressure/differential pressure transmitter, one or two isolation membrane boxes are added to measure the liquid receiving part.Mainly used for measuring high temperature, easy to solidify or crystallize, containing solid suspended matter, too viscous, corrosive or other needs to maintain sanitary conditions, non-polluting media.
The basic measurement element is the same as the technical performance and technical index of the 3151 pressure/differential pressure transmitter. After adding the remote transmission device, there will be a small decrease in measurement accuracy, slow reaction speed, and the installation position should be paid attention to when the pressure is relatively small, so as to ensure that the measured pressure is within the measurement range of the basic measurement element.
3151LT Flange Specification Sheet
Common flange flush type specifications are as follows:
DN50(2 ") flange dimension specification sheet
Flange standard | B | C | E | A | Number of bolts n | Bolt aperture |
150LB | 150 | 120 | 95 | 19 | 4 | 18 |
300LB | 165 | 127 | 95 | 20 | 8 | 18 |
600LB | 165 | 127 | 95 | 32 | 8 | 18 |
900LB | 215 | 165 | 95 | 45 | 8 | 26 |
PN1.6/1.0 | 165 | 125 | 95 | 18 | 4 | 18 |
PN2.5/4.0 | 165 | 125 | 95 | 20 | 4 | 18 |
PN6.4 | 180 | 135 | 95 | 26 | 4 | 22 |
DN80(3 ") flange dimension specification sheet
Flange standard | B | C | E | A | Number of bolts n | Bolt aperture |
150LB | 190 | 152 | 124 | 20 | 4 | 18 |
300LB | 210 | 168 | 124 | 25 | 8 | 22 |
600LB | 210 | 168 | 124 | 38 | 8 | 22 |
900LB | 240 | 191 | 124 | 54 | 8 | 26 |
PN1.6/1.0 | 200 | 160 | 124 | 20 | 8 | 18 |
PN2.5/4.0 | 200 | 160 | 124 | 24 | 8 | 18 |
PN6.4 | 215 | 170 | 124 | 28 | 8 | 22 |
DN100 (4 ") flange dimension specification sheet
Flange standard | B | C | E | A | Number of bolts n | Bolt aperture |
150LB | 230 | 190 | 155 | 24 | 4 | 18 |
300LB | 255 | 200 | 155 | 32 | 8 | 22 |
600LB | 275 | 215 | 155 | 45 | 8 | 26 |
900LB | 290 | 235 | 155 | 50 | 8 | 33 |
PN1.6/1.0 | 200 | 180 | 155 | 20 | 8 | 18 |
PN2.5/4.0 | 200 | 190 | 155 | 24 | 8 | 22 |
PN6.4 | 215 | 200 | 155 | 28 | 8 | 26 |
DN40 Flange size specification sheet
Flange standard | B | C | E | A | Number of bolts n | Bolt aperture |
PN1.6/2.5 | 150 | 110 | 84 | 18 | 4 | 18 |
PN2.5/4.0 | 150 | 110 | 84 | 18 | 4 | 18 |
PN6.4 | 170 | 125 | 89 | 26 | 4 | 22 |
Common flange insertion barrel specifications are as follows:
DN50(2 ") flange size specification sheet
Flange standard | B | C | E | F | A | Number of bolts n | Bolt aperture |
150LB | 150 | 120 | 95 | 48 | 19 | 4 | 18 |
300LB | 165 | 127 | 95 | 48 | 20 | 8 | 18 |
600LB | 165 | 127 | 95 | 48 | 32 | 8 | 18 |
900LB | 215 | 165 | 95 | 48 | 45 | 8 | 26 |
PN1.6/1.0 | 165 | 125 | 95 | 48 | 18 | 4 | 18 |
PN2.5/4.0 | 165 | 125 | 95 | 48 | 20 | 4 | 18 |
PN6.4 | 180 | 135 | 95 | 48 | 26 | 4 | 22 |
DN80(3 ") flange size specification sheet
Flange standard | B | C | E | E | A | Number of bolts n | Bolt aperture |
150LB | 190 | 152 | 124 | 74 | 20 | 4 | 18 |
300LB | 210 | 168 | 124 | 74 | 25 | 8 | 22 |
600LB | 210 | 168 | 124 | 74 | 38 | 8 | 22 |
900LB | 240 | 191 | 124 | 74 | 54 | 8 | 26 |
PN1.6/1.0 | 200 | 160 | 124 | 74 | 20 | 8 | 18 |
PN2.5/4.0 | 200 | 160 | 124 | 74 | 24 | 8 | 18 |
PN6.4 | 215 | 170 | 124 | 74 | 28 | 8 | 22 |
DN100(4 ") flange size specification sheet
Flange standard | B | C | E | E | A | Number of bolts n | Bolt aperture |
150LB | 230 | 190 | 155 | 89 | 24 | 4 | 18 |
300LB | 255 | 200 | 155 | 89 | 32 | 8 | 22 |
600LB | 275 | 215 | 155 | 89 | 45 | 8 | 26 |
900LB | 290 | 235 | 155 | 89 | 50 | 8 | 33 |
PN1.6/1.0 | 200 | 180 | 155 | 89 | 20 | 8 | 18 |
PN2.5/4.0 | 200 | 190 | 155 | 89 | 24 | 8 | 22 |
PN6.4 | 215 | 200 | 155 | 89 | 28 | 8 | 26 |
Liquid level (pressure/differential pressure) transmitter selection specifications table
Model | Transmitter type | |||||||
3151LT | Flange liquid level transmitter | |||||||
Code | Scale range | |||||||
4 5 6 7 | 0-4.0～40kPa(0-400～4000mmH2O) 0-20～200kPa(0-2～20mH2O) 0-70～700kPa(0-7～70mH2O) 0-210～2100kPa(0-21～mH2O) | |||||||
Code | Output form | |||||||
E | Linear output 4-20mAdc | |||||||
SF | Linear output 4-20mAdc +HART signal | |||||||
F | MODBUS-485 signal | |||||||
Code | Flange standard (high pressure side flange) | |||||||
A | ANSI American Standard (HG20615) | |||||||
D | DIN European Standard (HG20592) | |||||||
Code | Process connection size | |||||||
ANSI American Standard (HG20615) | DIN European Standard (HG20592) | |||||||
25 | 1” | DN25 | ||||||
40 | 1.5” | DN40 | ||||||
50 | 2” | DN50 | ||||||
80 | 3” | DN80 | ||||||
00 | 4” | DN100 | ||||||
Code | Process connection pressure rating | |||||||
ANSI American Standard (HG20615) | DIN European Standard (HG20592) | |||||||
A | 150LB | PN16/25 | ||||||
B | 300LB | PN40 | ||||||
C | 600LB | PN64 | ||||||
D | 900LB | PN100 | ||||||
Code | High pressure side diaphragm | |||||||
A | 316 stainless steel | |||||||
B | Hastelloy C | |||||||
C | Monel | |||||||
D | Tantalum | |||||||
E | Titanium | |||||||
F | Special Requirements | |||||||
Code | High pressure side insert tube length | High pressure side insert cylinder material | ||||||
A | 0 mm | None | ||||||
B | 50 mm | 316L Stainless steel | ||||||
C | 150 mm | 316L Stainless steel | ||||||
D | 200 mm | 316L Stainless steel | ||||||
Code | High pressure side filling fluid | |||||||
D | General silicone oil （-40~104℃） | |||||||
F | High temperature silicone oil （-40~304℃） | |||||||
S | Inert liquid （-40~204℃） | |||||||
Code | Low pressure side structural material | |||||||
Flange (joint) | Exhaust/drain valve | Isolation diaphragm | Sensor filling fluid | |||||
22 | 316 Stainless steel | 316 Stainless steel | 316 Stainless steel | Silicone oil | ||||
23 | 316 Stainless steel | 316 Stainless steel | Hastelloy C | Silicone oil | ||||
24 | 316 Stainless steel | 316 Stainless steel | Monel | Silicone oil | ||||
25 | 316 Stainless steel | 316 Stainless steel | Tantalum | Silicone oil | ||||
33 | Hastelloy C | Hastelloy C | Hastelloy C | Silicone oil | ||||
35 | Hastelloy C | Hastelloy C | Tantalum | Silicone oil | ||||
44 | Monel | Monel | Monel | Silicone oil | ||||
S2 | A remote transmission device (with a remote transmission device on the low-voltage side) | |||||||
Code | Shell material | Conduit inlet dimensions | ||||||
A | Low copper aluminum alloy polyurethane coating | M20×1.5 | ||||||
B | Low copper aluminum alloy polyurethane coating | 1/2-14 NPT | ||||||
C | Stainless steel | M20×1.5 | ||||||
D | Stainless steel | 1/2-14 NPT | ||||||
Code | Optional parts | |||||||
M1 | 0～100% Linear indicator head | |||||||
M4 | LCD multi - power digital display head | |||||||
D1 | Side discharge valve at the top (only for the low pressure side of the low pressure side without remote transmission) | |||||||
D2 | Side discharge valve at the top (only for the low pressure side of the low pressure side without remote transmission) | |||||||
Da | Flameproof ExdIIBT5Gb;(explosion-proof certificate no. : CE16.1163) | |||||||
Fa | Intrinsically safe ExiaIICT4 / T5 / T6Ga;(explosion-proof certificate no. : CE15.2354X) | |||||||
CX | With corresponding 316 flushing ring | |||||||
Selection example： 3151LT4SFA50AAA22AM4Da 0～20kPa
