MTS Floats & Accessories

Level Plus ® 

Magnetostrictive Level Sensors 

Floats for process level measurement 

and tank gauging applications 

550537 B 

Product Specification 

Level Plus Float Varieties 

Features 

■ Variety of styles and sizes to fit most applications 

■ Available in 316L stainless steel, Teflon ® , Hastelloy ® C-276 and 

Nitrophyl ® 

■ Custom weighting available 

Applications 

■ General chemicals 

■ Fuels and solvents 

■ Detergents and soaps 

■ Lubricating oils 

■ Propane 

Markets 

■ Pharmaceutical 

■ Food and beverage 

■ Above Ground Storage Tank (AST) 

■ Underground Storage Tank (UST) 

■ Petrochemical 

Level Plus Floats 

MTS offers a variety of floats to meet 

your application needs. Our floats 

come in a variety of sizes from less 

than 1.5 inches up to 5 inches in 

diameter. Float materials are available 

in stainless steel, Teflon, Hastelloy C- 

276 and Nitrophyl. A standard 1.85 

inch diameter, 316L stainless steel 

float is suitable for use in most 

applications. 

Offset weighted floats are also 

available for applications requiring 

PTB approval. 

However, product viscosity, specific 

gravity, and temperature can 

vary widely in a process or tank 

gauging application. Because of these 

variables and others, such as tank 

pressure and corrosiveness, no one 

float can meet all requirements. 

Therefore, a variety of float styles 

are available and we will assist you 

in choosing the one that best meets 

your requirements. 

When choosing a float for your 

application, MTS recommends you 

choose one that has a specific 

gravity of at least 0.05 less than that 

of the measured liquid. For interface 

measurement, a minimum of 0.05 

specific gravity differential is recommended 

between upper and lower 

liquids. 

Most Level Plus gauges can be 

used for both product and interface 

level detection. For more information 

please contact the MTS Level Plus 

applications department or go to 

www.mtssensors.com for more 

information. 

All specifications are subject to change. Please contact MTS for specifications that are 

critical to your needs. For more information, go to www.mtssensors.com.

Level Plus 

Standard Floats 

Note: 

When the magnet is not shown, the magnet is positioned 

at centerline of float. 


Notes (for all applications): 

1. Be sure that the float specific gravity be at least 0.05 less than that of 

the measured liquid as a safety margin at ambient temperature. 

2. For interface measurement: A minimum of 0.05 specific gravity differential 

is required between the upper and lower liquids. 

3. Sanitary polish is available for stainless-steel floats up to 200 grit/25 RA. 

4. Electropolish is available for stainless-steel floats up to 240 grit/15 RA. 

3.01 in. 

(76.5 mm) 

0.70 in. dia. 

(17.8 mm) 

Product float 

Part no. ext. Material Offset weight option✵ specific gravity 

X = 1 316L Stainless steel No 0.65 

X = 2 316L Stainless steel Yes 0.65 

X = 3 Hastelloy C-276 No 0.70 

X = 4 Hastelloy C-276 Yes 0.73 

✵Offset weight option: A weight is installed in the float to bias, or tilt, the float installed on 

the transmitter tube so that the float remains in contact with the tube at all times. The offset 

option is required for installations that must conform to PTB standards. 

1.85 in. dia. 

(47 mm) 

Part no. 251981-X 

Product Float 

Part no. 251981-X 

Maximum pressure: 400 psi 

Maximum temperature: 300 °F 

Specific gravity: See table above. 

#1 Interface Float (1.12 specific gravity 

0.70 in. dia. 

(17.8 mm) 

2.22 in. 

(56.4 mm) 

Product Float 

316L Stainless steel 

Part no. 251387-1 



Specific gravity: 0.48 maximum 

Part no. ext. 

X = 1 

X = 2 

Offset Weight option 

No 

Yes 

2.32 in. dia. 

(59 mm) 

Part no. 251387-1 

0.70 in. dia. 

(17.8 mm) 

Propane applications 

3.57 in. 

(90.6 mm) 

Critical Service Float 


Part no. 251469-X 



Part no. ext. Offset weight option Specific gravity 

X = 1 No 0.43 

X = 2 Yes 0.45 

3.50 in. dia 

(88.9 mm) 

Part no. 251469-X 

2

Level Plus 



Note: 



1.42 in. 

(36 mm) 

1.61 in. dia. 

(40.9 mm) 

Part no. 200938-X 

0.70 in. dia. 

(17.8 mm) 

Product Float 

Part no. 200938-X 



Specific gravity: See table to right. 

Product float 

Part no. ext. Material Offset weight option specific gravity 



0.70 in. dia. 

(17.8 mm) 

2.01 in. 

(51.1 mm) 

2.14 in. dia. 

(54.4 mm) 

Part no. 252354 

High-pressure applications 

Product Float, High Pressure 


Part no. 252354 (formerly EPC-0092) 




1.10 in. dia. 

(28.0 mm) 

Product float 

Part no. ext. Material Offset weight option✵ specific gravity 



X = 3 Hastelloy C-276 No 0.70 

X = 4 Hastelloy C-276 Yes 0.73 

5.01 in. 

(127.3 mm) 

1.85 in. dia. 

Product Float, Long 

Part no. 201232-X 




✵ Offset weight option: A weight is installed in the float to bias, or tilt, the float installed on the 

transmitter tube so that the float remains in contact with the tube at all times. The offset 

option is required for installations that must conform to PTB standards. 

2.76 in. 

max dia. 

(70.1 mm) 

Part no. 201232-X 

1.52 in 

(38.6 mm) 

0.57 in (14.4 mm) Ref 

Magnet 

Part no. 252228-3 

1.00 in. 

(25.4 mm) 

0.700 in. 

(17.7 mm) 

ID Min 

o 3.95 in. 

(100.3 mm) 

1.60 in. 

(40.6 mm) 

3.00 in. 

76.2 mm) 

Product Float, 

316L Stainless Steel Low Lift-off 

Part no. 252228-3 


Maximum temperature: 300°F 

Specific gravity: 1.0. 

3

Level Plus 

Sanitary Floats 


Note: 



4.25 in. 

(108 

3.5 in. 

(89 mm) 

0.70 in. dia. 

(17.8 mm) 

Centerline of magnet 

Product Float 

Part no. 401513-X (formerly EPC 0080) 



Specific Gravity: 0.66 maximum 

Part No. Ext. Material Offset Weight Option Surface Finish 

X = 1 316L Stainless steel No 200 GRIT/RA25 

X = 2 316L Stainless steel Yes 200 GRIT/RA25 

X = 3 316L SS (electropolished) No 240 GRIT/RA15 

X = 4 316L SS (electropolished) Yes 240 GRIT/RA15 

Notes: 

Float part no. 401513 is 3A sanitary. 

Use float part no. 401513 for use with all sanitary sensor wells as other 

floats may enter the inactive zone when the tank is emptied. 

1.85 in. dia. 

(47 mm) 

2.95 in. 

(76.2 mm) 

Part no. 401513-X 

2.34 in. dia. 

(59.4 mm) 

Part no. 200931-X 

0.70 in. dia. 

(17.8 mm) 

1.50 in. 

(38.1 mm) 

C 2.50 in. L (63.5 mm) 

C L of magnet with 

Magnet Offset 

Product Float 

Part no. 200931-X 




Part no. ext. Material Offset weight Offset magnet Surface finish 

option 

option 

X = 1 316L Stainless steel No No 200 GRIT/RA25 

X = 2 316L Stainless steel Yes No 200 GRIT/RA25 

X = 3 316L SS (electropolished) No No 240 GRIT/RA15 

X = 4 316L SS (electropolished) Yes No 240 GRIT/RA15 

X = 5 316L Stainless steel No Yes 200 GRIT/RA25 

X = 6 316L Stainless steel Yes Yes 200 GRIT/RA25 

X = 7 316L SS (electropolished) No Yes 240 GRIT/RA15 

X = 8 316L SS (electropolished) Yes Yes 240 GRIT/RA15 

Note: 

Float part no. 200931 is 3A sanitary float part no. 200931 may enter the inactive 

zone when used with SA sanitary sensor wells. 

4

Level Plus 



2.00 in. 

(50.8 mm) 

Dia 

over weld bead 

Magnet 

0.98 in. 

(24.8 mm) 

1.90 in. 

(48.3 mm) 

0.700 in. 

(17.7 mm) 

ID Min 

o3.60 in. 

(91.4 mm) 

Part no. 252228-1 

1.60 in. 

(40.6 mm) 

4.02 in. 

(102.1 mm) 

Product Float 316L Stainless Steel 

Low Lift-Off 

no. 252228-1 



Specific gravity: 1.0 

Clean-in-Place Floats 

Note: 



0.70 in. dia. 

(17.8 mm) 

Part no. ext. Material Offset weight option Surface finish 

X = 1 316L Stainless steel No 200 GRIT/RA25 

X = 2 316L Stainless steel Yes 200 GRIT/RA25 

1.96 in. 

(49.8 mm) 

2 in. dia. 

(51 mm) 

Product Float no. 251234-X 




Notes: 

1. Float part no. 251234 is for clean-in-place and drain-in-place applications. 

2. Float part no. 251234 may enter the inactive zone. Consult factory about viability of usage. 

Part no. 251234-X 

5

Level Plus ` Teflon Floats 

Teflon Floats 

0.71 in. 

(18 mm) 

4.50 in. 

(114.3 mm) 

4.50 in. dia. 

(114.3 mm) 

1.10 in. dia. 

(28 mm) 

Centerline of Magnet 

Magnet 

#1 Interface Float (1.0 s.g.) 

Part no. 251120 



Specific gravity: Sink through 1.0 

specific gravity and float on 1.12 

specific gravity or greater 

Part no. 201112 

0.70 in. dia. 

(17.8 mm) 

5.30 in. 

(134.6 mm) 

2.65 in. 

(67.3 mm) 


Magnet 

Product Float 

Part no. 251939 




1.90 in. dia. 

(48.3 mm) 

Part no. 251939 

0.35 in. 

(9 mm) 

0.70 in. dia. 

(17.8 mm) 


3.00 in. 

(76.2 mm) 

2.38 in. dia. 

(60.5 mm) 

Part no. 201109 

Magnet 

Product Float 

Part No. 201109 




#1 Interface Float (1.12 specific gravity or greater 

6

Level Plus 

Nitrophyl Floats 


Note: 

Floats 251966, 251967, 251968, 251313, 251314 and 251315 may be used with propane, butane, and liquefied 

petroleum gas. Precautions should be taken to ensure that no other contaminants are present in these liquids, 

which may not be compatible with nitrophyl. 

Note: 



0.30 in. 

(7.6 mm) 

3.00 in. 

(76.2 mm) 

Spacer 

0.67 in. dia. 

(16.9 mm) 

Centerline 

of Magnet 

Magnet 

3.16 in. 

(80.3 mm) 

3.20 in. 

(81.3 mm) 

Part No. Ext. 

X = 1 

X = 2 

Offset Weight Option? 

No 

Yes 

A 

B 

C 

1.48 in. dia. 

(37.6 mm) 

(A) Product Float 

Part no. 251966-X 




Use with refined motor fuels 

(B) #1 Interface Float 

Part no. 251967-X 



Specific gravity: Sink through ≤0.78 

and float on 1.0 

Use with gasoline and water 

(C) #2 Interface Float 

Part no. 251968-X 





Use with diesel and water 

0.49 in. 

(12.4 mm) 

3.30 in. 

(83.8 mm) 

0.83 in. dia. 

(21.1 mm) 

Centerline 

of Magnet 

Magnet 

3.30 in. 

(83.8 mm) 

3.30 in. 

(83.8 mm) 

Part No. Ext. 

X = 1 

X = 2 

Offset Weight Option? 

No 

Yes 

A 

B 

C 

2.00 in. dia. 

(50.8 mm) 

(A) Product Float 

Part No. 251313-X 




(B) #1 Interface Float 

Part no. 251314-X 






(C) #2 Interface Float 

Part no. 251315-X 






7

Level Plus 



Note: 

When the magnet is not shown, the magnet is positioned at centerline 

of float. 

3.03 in. 

(77 mm) 

3.75 in. dia. 

(95.2 mm) 

Part no. 251239-X 

0.83 in. dia. 

(21.1 mm) 

Centerline 

of magnet 

2.79 in. 

(70.9 mm) 

Product Float 

Part no. 251239-X 




Part no. ext. 

X = 1 

X = 2 

Offset weight option 

No 

Yes 

#1 Interface Float 

Part no. 251240-X 



Specific gravity: Sink through ≤0.78 and 

float on 1.0 



Part no. 251241-X 



Specific gravity: Sink through ≤0.88 and 

float on 1.0 


Stainless 

Cover 

Stainless 

Float Post 

C L 

6.61 in. 

(168 mm) 

Magnet 5.99 in. 

(152 mm) 

Part no. ext. Material sg 

252998 316L Nitrophyl/Stainless steel 0.5 

252999 316L Nitrophyl/Stainless steel 0.9 - 0.96 

1.19 I.D. 

(30.2 mm) 

6.00 in. dia 

(152 mm) 

Nitrophyl Base 

Part no. 252998/252999: 



Part no. 252998/252999 

8

-Level Plus 

Long-Gauge Floats 

Long-Gauge Floats 

Note: 



4.98 in. 

(126.6 mm) 

4.55 in. 

(115.6 mm) 

C L Magnet 

Part no. ext. Material Offset weight option Specific gravity 



Product/Interface 

w/Offset Magnet Float 

Part no. 201248 




Part no. 201248 

Replaces 250709-X 

1.10 Min. 

(28.0 mm) 

I.D. Thru 

5.11 in. Max. O.D. 

(129.8 mm) 

#1 Interface Float(1.0 s.g.) 

Part no. 252960-X 



Specific gravity: Sink through 

1.12 specific gravity 

6.95 in. 

(176.5 mm) 

1.90 dia. 

(48.3 mm) 

Part no. ext. Material Offset weight option Specific gravity 



in. 

6.95 (00.0 mm) in. 

(176.5 mm) 

Part no. 251426-X 

Product Float 

Part no. 251426-X 





Part no. 251427-X 





Part no. 251428-X 




3.6 in. dia. 

(91 mm) 

1.10 in. dia. 

(27.9 mm) 

Product float 

Part no. ext. Material Offset weight option specific gravity 



3.50 in. 

(89 mm) 

3.00 in. 

(76.2 mm) 

Part no. 252961-X 

Product Float, Offset Magnet 

Part no. 252961-X 




#1 Interface Float (1.0 s.g.) 

Part no. 252963-X 



Specific gravity: Sink through 

1.12 specific gravity

Accessories 

M-Series Analog 

LED Display Meter 

MTS Panel-Mounted LED Display Meter (110 VAC Input Power) 

MTS part numbers: 

380046: LED display meter (see notes 2 & 3) 

380051: LED display meter with analog output (see notes 2 & 3) 

380064: LED display meter with negative integer display✵ (see note 1, 2, & 3) 

380065: LED display meter with analog output and negative integer display✵ (see note 1, 

2, & 3) 

RST A B C D E 

ENTER LOCK PRE A PRE B VIEW PRGM 

RST A B C D E 


Enclosure options: 

401150: NEMA 4 enclosure for one LED display meter 

401151: NEMA 4 enclosure for two LED display meters 

A NEMA 7 enclosure is available for the LED display meter. Please contact the Level-Plus 

Applications Engineering department for more information. ( reference part no. 400454) 

RST A B C D E 


Standard 1/8 DIN, high-impact ABS plastic housing, NEMA 4X/IP65 front panel 

Notes: 

1. This style LED display meter can display negative integers which is 

necessary with temperature loop. 

2. LED display meters listed feature two SPDT 10 amp type 

adjustable dead-band relays. 

3. LED display meters listed have a integral 24 Vdc (50 mA) 

power supply. 

✵When selecting the temperature output option use the negative integer 

display units. 

LCD Display Meter 

MTS Loop-Powered LCD Display Meter 

MTS part number 380062 

FM Approved: 

Explosion-proof, Class I, II, III; Division 1; Groups B-G 

Intrinsically Safe, Class I, II, III; Division 1; Groups A-G (when connected through the appropriate 

barrier) 

SPAN 

ZERO 

Universal Process Meter 

Universal Process Meter (110 VAC Input Power) 

MTS universal process meter w/ 11 point linearization 

• Includes 24-Vdc transmitter power supply 


380071 4-1/2 Digit LED universal process meter 

380072 2 Relays (2 Amp @ 250 VAC SPDT) 

380073 4 Relays (2 Amp @ 250 VAC SPDT) 

2 

4 

ACK 

ENTER 

NEMA 4X 

Front Panel 

10


M-Series Analog 

PC Analog Setup Software 

M-Series PC Setup Software 

The M-Series setup software will allow the setup and calibration of the M-Series gauges 

with HART communications. The software communicates via HART through a HART adapter 

from SMAR. Adjustments include: span, offset, gauge length, head adder, gradient, units 

of measure, display selection, output loop assignment and enable/disable of display. 


252273-1: M-Series PC setup software on CD-ROM and Hart adapter 

252273-2: M-Series PC setup software on CD-ROM 

380068: HART to RS-232 adapter (SMAR HI-311) 

11


M-Series Digital 

PC Digital Setup Software 

M-Series PC Setup Software 

The M-Series setup software will allow the setup and calibration of the M-Series digital 

gauges. The software communicates via a RS-485 to RS-232 Adapter. Adjustments include: 

offset, gauge length, head adder, gradient, units of measure and temperature. 


625051 M-Series digital PC setup Modbus software on CD-ROM and RS-485 to RS-232 

adapter 

625052 M-Series digital PC setup Modbus software on CD-ROM 

380075 RS-485 to RS-232 adapter 

625053 M-Series digital PC setup (DDA) 

Level Plus Hand Held Terminal 

Ordering information: 

Level Plus HT100 Hand-Held Terminal (DDA Only) 

The Level Plus HT100 is a convenient and cost-effective tool for supporting MTS Level 

Plus Direct Digital Access (DDA) tank gauges, Side Tank Indicators, and tank monitors 

in the field. 

The hand-held, microprocessor-based unit performs all the operations necessary for 

setting up, troubleshooting, and maintaining an MTS DDA tank gauging system. Using 

the HT100 allows users to program and perform diagnostics on-site, saving time and 

money. 

LCD Operator Interface Terminal 

LCD Operator Interface Terminal 


253023-1 CL01 DDA master 

253023-3 CL01 Modbus master 

12


Miscellaneous 

Magnet Assembly 

Magnet Assembly 


Magnet assembly (150 lb. pull) for LDF long gauge and M-Series 

2.0 in. 

(50.8 cm) 

3 in. 

(76.2 mm) 

Weight Assembly 

Weight Assembly 

Standard 

2.0 in. 

(50.8 mm) 


Weight assembly (11 lb.) for LDF long gauge and M-Series 

5 in. 

(127 mm) 

Low Liftoff 

A 

7.50 in. dia. 

(191 mm) 

3.250 in. (83 mm) 

0.125 in. 

(15.9 mm) 


Weight assembly (11 lb.) 

Use with float, part number 252998/252999 

6.50 in. dia. 

(165 mm) 

0.625 in. 

(15.9 mm) 

Section A-A 

A 

FM 

Part Number: 06-04 550537 Revision B 

Level Plus is a registered trademark of MTS Systems Corporation. 

All other trademarks are the property of their respective owners. 

All Temposonics sensors are covered by US patent number 5,545,984. Additional patents are pending. 

Printed in USA. Copyright © 2004 MTS Systems Corporation. All Rights Reserved. 

APPROVED 

UNITED STATES 

MTS Systems Corporation 

Sensors Division 

3001 Sheldon Drive 

Cary, NC 27513 

Tel: 800-457-6620 

Fax: 919-677-2545 

800-943-1145 

www.mtssensors.com 

level@mtssensors.com 

GERMANY 

MTS Sensor Technologie 

GmbH & Co. KG 

Auf dem Schüffel 9 

D - 58513 Lüdenscheid 

Tel: +49 / 23 51 / 95 87-0 

Fax: +49 / 23 51 / 56 491 

info@mtssensor.de 

www.mtssensor.de 

JAPAN 

MTS Systems Corporation 

Sensors Technology 

Ushikubo Bldg. 

737 Aihara-cho, Machida-shi 

Tokyo 194-0211, Japan 

Tel: + 81 (42) 775-3838 

Fax:+ 81 (42) 775-5512 

www.mtssensor.co.jp

MTS Floats & Accessories

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