Omega Products LTUM1-2014 User Manual

TUNING FORK POINT LEVEL SWITCHES

For High/Low Liquid Levels

LTU-2000 Series

Starts at

355

U Unique Tuning Fork

Technology, Unaffected by Variations in Density, Conductivity, Dielectric, Foam, Tank Agitation or Vibration

U 316 SS Construction with

Optional ETFE Coating

U 0.1% Accuracy, 0.5 mm

Repeatability

U Models Available with

Fixed or Adjustable Time Delay

LTUR-2012, $492.

LTUR-2041, $582.

LTUR-2011, $396.

LTUM1-2014, $355.

The LTU-2000 Series tuning fork level switches are point level switches that detect high or low liquid levels. Based on the vibrating tuning fork principle, these units accurately detect contact with a liquid, triggering a switching output. Depending on the liquid viscosity, the LTU-2000 is virtually immune to chemical or physical properties, and can be installed at any angle into a pipe or tank. Recalibration is not required between batches, and units may be cleaned in place. Models are available with PNP, relay or direct load switching.

All shown smaller than actual size.

Model LTUP LTUR LTUM1 LTUM2

Power 20 to 60 Vdc 20 to 60 Vdc 20 to 60 Vdc 85 to 264 Vac

20 to 264 Vac Output PNP (3-wire) SPDT relay PNP (3-wire) 100 mA SSR

5 A @ 250 Vac

Load Current 500 mA — 500 mA 500 mA Electrical Cable gland or Cable gland or DIN 43650 DIN 43650

Connection ¹⁄₂ NPT ¹⁄₂ NPT plug plug Time Delay 1 to 20 sec 1 to 20 sec 1 sec 1 sec

adjustable adjustable Enclosure Glass Glass 316 SS 316 SS

ﬁlled nylon ﬁlled nylon DIN 43650 DIN 43650

Operating -10 to 80°C -10 to 80°C -10 to 120°C -10 to 120°C Ambient (14 to 176°F) (14 to 176°F) (14 to 248°F) (14 to 248°F)

Protection NEMA 4 NEMA 4 NEMA 6 NEMA 6

(IP65) (IP65) (IP67) (IP67)

K-53

SPECIFICATIONS

Viscosity: 10,000 cSt max Power Consumption: ±3 mA Switching Point: 12 mm from tip Accuracy: ±0.1% Repeatability: ±0.5 mm Wetted Parts: 316 SS Max Pressure: 50 bar (725 psi)

Dimensions: DIN 43650 Plug (LTUM Models Only): 27 Dia x 80 mm H

(1.0625 x 3.125") Nylon Head: 88 W x 80 mm H (3.5 x 3.125")**

Aluminum Head: 89 Dia x 126 mm H (3.5 x 5")**

Insertion Length, “D” Dimension: 80 mm (3.15") standard; measure from bottom of hex to tip of fork

Available on LTUR and LTUP models only.

Standard Configurations

MOST POPULAR MODELS HIGHLIGHTED!

To Order (Specify Model Number)

Model No. Price Description

LTUP-2011 $361 Tuning fork level switch, 20 to 60 Vdc power, PNP output, 316 SS,

connection, nylon enclosure, standard 80 mm (3.15”) insertion depth LTUR-2011 396 Tuning fork level switch, 20 to 264 Vac/20 to 60 Vdc power, 5 A SPDT relay output,

316 SS,

NPT connection, nylon enclosure, standard 80 mm (3.15”) insertion depth

⁄

LTUR-2041 582 Tuning fork level switch, 20 to 264 Vac/20 to 60 Vdc power, 5 A SPDT relay output, 316 SS, 1.5” tri-clamp connection, nylon enclosure, standard 80 mm (3.15”) insertion depth

LTUR-2012 492 Tuning fork level switch, 20 to 264 Vac/20 to 60 Vdc power, 5 A SPDT relay output, 316 SS, 80 mm (3.15”) insertion depth

NPT connection, aluminum enclosure with 1⁄2 NPT conduit, standard

⁄

LTUM1-2014 355 Tuning fork level switch, 20 to 60 Vdc power, PNP output, 316 SS, DIN 43650 plug, standard 80 mm (3.15”) insertion depth

LTUM2-2014 355 Tuning fork level switch, 85 to 264 Vac power, SSR output, 316 SS, DIN 43650 plug, standard 80 mm (3.15”) insertion depth

Model No. Price Description

LTUP-2(A)(B)(C)-(D) $355 Custom tuning fork point level switch; PNP output; Select wetted material (A),

process connection (B), enclosure (C) and insertion length in inches (D) LTUR-2(A)(B)(C)-(D) 390 Custom tuning fork point level switch; relay output; Select wetted material (A),

process connection (B), enclosure (C) and insertion length in inches (D) LTUM1-2(A)(B)(4)-(D) 355 Custom tuning fork point level switch; PNP output, with miniature plug; Select

wetted material (A), process connection (B), enclosure (4) and insertion length in inches (D)

LTUM2-2(A)(B)(4)-(D) 355 Custom tuning fork point level switch; SSR output, with miniature plug; Select

wetted material (A), process connection (B), enclosure (4) and insertion length in inches (D)

Options Ordering

Ordering Sufﬁx Add’l Price Description

Dimensions: mm (inch)

A-Wetted Materials

0 N/C 316 SS 1 $180/ft ECTFE/ETFE coating; ﬂange

connections recommended B-Process Connection 1 N/C 2 N/C 1 NPT thread 3 $150 1 4 186 1.5” Tri-Grip 5 300 2” ﬂange, ANSI, 150# 316 SS Others Call for price Consult Engineering with details C-Enclosure 1 $6 Glass ﬁlled nylon with

with cable gland** 2 102 Aluminum die cast with

conduit entry** 3 108 Aluminum die cast with cable

gland entry 4 N/C 316 SS DIN 43650; for LTUM units only D-Insertion Length D (in) $102/ft Rod length (in); 1.5 m (60”) max

Tri-GripTM (Tri-Clamp® compatible).

Comes complete with operator’s manual. Ordering Examples: LTUP-2011, tuning fork level switch, 20 to 60 Vdc power,

PNP output, 316 SS, LTUM2-2014, tuning fork level switch, 85 to 264 Vac power, SSR output, 316 SS,

connection, DIN 43650 plug, 80 mm insertion depth, $355.

⁄4 NPT connection, nylon enclosure, 80 mm insertion depth, $361.

NPT thread

⁄

NPT thread

⁄

, sanitary*

NPT conduit

⁄

NPT

⁄

K-54

⁄4 NPT

NPT

⁄

NPT connection,

⁄

NPT connection,

⁄

Switching hysteresis 1 mm

Switching point=

12 (1/2)

Switching hysteresis 1mm

Switching

point=12 (1/2)