Dwyer Instruments SERIES ULSS, SERIES ULSM, SERIES ULSL Catalog Page

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SERIES ULSS, ULSM & ULSL

ULTRASONIC LEVEL SENSORS

Non-Contact Transmitter, SPST Programmable Relays

LEVEL

4´

[1.2 m]

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ULSS-10: 1˝ NPT

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The Series ULSS Ultrasonic Level Sensor provides non-contact, continuous

ultrasonic level measurement of uids for short range applications. It has a 4.1´ (1.2 m) measuring range with a 0.125˝ (3 mm) accuracy.

The Series ULSM Ultrasonic Level Sensor provides non-contact, continuous

ultrasonic level measurement of uids for medium range applications. It has a 9.8´ (3 m) measuring range with a ±0.2% of range accuracy.

The Series ULSL Ultrasonic Level Sensor provides non-contact, continuous

ultrasonic level measurement of uids for tall range applications. It has a 18´ (5.5 m) measuring range with a ±0.2% of range accuracy.

FEATURES/BENEFITS

• Via free software, units can be programmed to transmit an output signal and operate four relays for control applications

• Provides reliable, accurate, and non-contact level measurement of compatible

liquids

• Non-contact technology offers no moving parts to wear, jam, corrode, or get coated like contact technologies

• Mapping software makes effective measuring surface only a 3˝ (76.2 mm) diameter column with no concerns of ladders, pipes, or other tank intrusions in the remaining

sound cone

• Ultrasonic technology paired with automatic temperature compensation provides accurate and reliable measurements in almost all conditions

• Fail-safe logic is easily congured to custom applications via free software removing the need for target calibration

• Full NEMA 6P submersible enclosure rating to ensure excellent product durability

APPLICATIONS

• Water and wastewater

• Pulp and paper processing

• Sump and process tanks

• Chemical processing

• Food and beverage

MODEL CHART Model Range ULSS-10 ULSM-10 ULSL-10 Note: USB adapter necessary

for calibration. One adapter can program multiple units.

ULSS ULSM

ACCESSORIES Model Description

4.1´ (1.25 m)

9.8´ (3 m) 18´ (5.5 m)

ULS-ACC-USB ULS-ACC-121 ULS-ACC-122 ULS-ACC-131 ULS-ACC-132 ULS-ACC-142 ULS-ACC-221 ULS-ACC-222 ULS-ACC-231 ULS-ACC-232 ULS-ACC-241 ULS-ACC-242 ULS-ACC-510 ULS-ACC-520

USB adapter for calibration, PVC 2˝ x 1˝ NPT reducer bushing tting (sch. 40), PVC 2˝ x 1˝ NPT reducer bushing tting (sch. 80), PVC 3˝ x 2˝ NPT reducer bushing tting (sch. 40), PVC 3˝ x 2˝ NPT reducer bushing tting (sch. 80), PVC 4˝ x 2˝ NPT reducer bushing tting (sch. 80), PVC 2˝ socket x 1˝ NPT reducer bushing tting (sch. 40), PVC 2˝ socket x 1˝ NPT reducer bushing tting (sch. 80), PVC 3˝ socket x 2˝ NPT reducer bushing tting (sch. 40), PVC 3˝ socket x 2˝ NPT reducer bushing tting (sch. 80), PVC 4˝ socket x 2˝ NPT reducer bushing tting (sch. 40), PVC 4˝ socket x 2˝ NPT reducer bushing tting (sch. 80), PVC 1˝ NPT polypropylene side mount bracket 2˝ NPT polypropylene side mount bracket

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ULSL

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4´

[1.2 m]

ULSM-10:

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1˝ NPT

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SPECIFICATIONS Service: Compatible uids. Wetted Materials: Sensor: PVDF; O-ring: FKM. Ranges: See chart. Accuracy: ULSS: 0.125˝ (3 mm); ULSM & ULSL: ±0.2% of range. Resolution: ULSS: 0.019˝ (0.5 mm); ULSM: 0.039˝ (1 mm); ULSL: 0.079˝ (2 mm). Blind Zone: ULSS: 2˝ (5 cm); ULSM: 4˝ (10 cm); ULSL: 8˝ (20 cm). Beam Width: ULSS & ULSM: 2˝ (5 cm); ULSL: 3˝ (7.62 cm). Temperature Limits: Process: 20 to 140°F (-7 to 60°C); Ambient: -31 to 140°F (-35

to 60°C).

Temperature Compensation: Automatic. Pressure Limit: 30 psi (2 bar). Power Requirement: 12 to 28 VDC. Output Signal: 4-20 mA, 2-wire; Invert: 4-20 mA or 20-4 mA; Fail-safe: 4 mA, 20

mA, 21 mA, 22 mA, or hold last.

Loop Resistance: 400 Ω max. Electrical Connections: 4´ (1.2 m) 9 conductor shielded cable. Contact Type: 4 SPST relays. Contact Rating: 1 A max @ 28 VDC max. Deadband: Selectable (no hysteresis, 1/4˝, 1/2˝, 1˝, 1/2 cm, 1 cm, 2 cm, 5 cm or

not available).

Process Connection: 1˝ NPT, 1˝ BSPP (optional). Enclosure Rating: NEMA 6P (IP68). Enclosure Material: Polycarbonate; Gland: TPE. Mounting Orientation: Vertical. Memory: Non-volatile. Failsafe: Contact: Power loss: Holds last contact; Power on: Open, close, or last

contact.

Programming: Free PC software download (USB adapter required). Weight: 1 lb (0.45 kg). Agency Approvals: CE.

DWYER INSTRUMENTS, INC.

4´

[1.2 m]

1-1/16 [27.10]

ULSL-10: 2˝ NPT

Level Transmitters,

Ultrasonic

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