Dwyer LTS User Manual

Series LTS Tilt Switch Probe

EE PROBE

SIZE C

Specifications - Installation and Operating Instructions

ulletin L-30

The Series LTS Tilt Switch Probes are able to sense either the presence or ab-

sence of material when other sensors won’t work due to bin vibration, or actual walls aren’t available for mounting other types of measuring units. The probes are

esigned for use where the bulk material to be sensed is exposed or open. Typical

pplications include high or low level detection in large hoppers, silos, crushers, or

rippers; high level control under stackers, and detection of plugged conditions at

t conveyor transfer points. Series LTS probes can also be used to detect the presence or absence of bulk material on belt conveyors, on chutes to indicate product flow, and to aid in loading rail cars or trucks.

Tilt Switch Probes are available containing either a SPST, normally closed or nonmercury switch. All probe models are airtight, dust tight, and waterproof. Series LTS probes feature a probe activation angle of 25° from vertical. The units come in a standard heavy-duty model as well as a compact model. The compact probe should be used for applications involving small bins and hoppers where space is limited, while the heavy duty probe should be used for applications where a heavy duty abrasion-resistant probe is necessary.

INSTALLATION INSTRUCTIONS

PROBE INSTALLATION

The probe should be suspended using a fixed support, such as a mounting bracket or S-hook, at a position where it will easily intercept the bulk material at the desired indication point. There must be a free flow of material both to and away from the probe. In some installations, it is necessary to install a baffle or shield above the probe assembly to protect it from product surges.

Model

LTS-N11G-025

TS-N21G-025

TS-N12G-025

TS-N22G-025

SPECIFICATIONS Service: Powder and bulk.

emperature Limit: -40 to 150°F (-40 to 66°C).

witch Type: SPST, normally closed.

lectrical Rating: 0.25 A max, 60 V max, 3 VA max.

E Electrical Connection: 16-3 type SO connection cable. Cable Length: 25 ft (7.6 m) unless otherwise specified. Probe Length: Standard: 9˝ (23 cm); Compact: 6˝ (15 cm). Signal Voltage: 15 VDC. Actuation Angle: 25° from vertical. Material: Steel or 302/304 SS. Switch Surrounding: Epoxy encapsulated. Mounting Orientation: Vertical. Weight: Standard: 4.75 lbs (2.15 kg); Compact: 2.5 lbs (1.13 kg). Features: Fittings for hangers. Agency Approvals: Meets NEMA 4.

WIRING

All wiring should be in compliance with applicable Local, Federal, and State codes. Probe connection cable is 16-3 type SO and is attached to the probe. Probe cable length is supplied as specified per order, and may be spliced.

MAINTENANCE

The Series LTS Tilt Switch Probes are not field serviceable and should be returned if repair is needed (field repair should not be attempted and may void warranty). Be sure to include a brief description of the problem plus any relevant application notes. Contact customer service to receive a return goods authorization number before shipping.

“A”

6-3 SO Cable

“B”

-7/8 [47.63]

-7/16 [36.51]

-7/8 [47.63]

-7/16 [36.51]

Probe Size “C”

9˝ Steel

˝ Steel

˝ SS

Figure 2: Typical Applications

Model LTS-N11G-025 LTS-N21G-025 LTS-N12G-025 LTS-N22G-025

Consult factory for custom cable lengths.

Size

Standard Compact Standard Compact

Probe Material

Steel Steel Stainless Steel Stainless Steel

Switch Material

Non-mercury Non-mercury Non-mercury Non-mercury

Electrical Connection

Standard: 16-3 type SO Connection Cable Standard: 16-3 type SO Connection Cable Standard: 16-3 type SO Connection Cable Standard: 16-3 type SO Connection Cable

Cable Length

25 ft 25 ft 25 ft 25 ft

PROXIMITY CONTROLS

A DIVISION OF DWYER INSTRUMENTS, INC.

Phone: 219/879-8000 www.dwyer-inst.com Fax: 219/872-9057 e-mail: info@dwyermail.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.