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Wireless Hydrostatic Level Transmitter (LL4-LL5)

Brand: OleumTech Corporation

The OleumTech® OTC Wireless Hydrostatic Level Transmitters measure level by monitoring pressure at the bottom point of vented top mount tanks, deep wells, water towers, rivers, and lakes. 

The transmitters are equipped with one 0-5 Vdc analog input and provide high resolution 24-bit analog to digital conversion (ADC). 

The transmitters can supply up to 9.5 Vdc to the connected sensor. 

The WT-LL4 direct mount version includes a specified length hydrostatic pressure sensor and direct mounting solution while the WT-LL5 allows users to select their own sensor and mounting method. 

The WT-LL5 also provides a discrete input. 

These ultra-lower-power transmitters are powered by replaceable battery packs that provide up to a 10-year life.

The push button LCD interface allows for device configuration and instant access to process data.

The field-proven wireless transmitters communicates with an assigned wireless gateway within the OTC Wireless Sensor and I/O Network creating a highly scalable network, accommodating virtually any I/O requirement.

The OleumTech wireless Transmitter is certified for use in Class I, Division 1 (Zone 0) hazardous locations. 

It is intrinsically safe, designed not to cause a spark, and can be serviced without being removed from a process.

This product is also available without a local display.

  • 0-5 PSI – 1-5 V, 25 ft Cable Length, Weight Kit Included, Part# A005025K
  • 0-10 PSI – 1-5 V, 50 ft Cable Length, Weight Kit Included, Part# A005050K
  • 0-25 PSI – 1-5 V, 75 ft Cable Length, Weight Kit Included, Part# A005075K
Features
  • 1-5 Vdc hydrostatic sensor input
  • Up to a 10-year battery life
  • Advanced local LCD display interface
  • Self-contained, rugged design
  • Installs in minutes
  • IP66, -40 °C to 70 °C (-40 °F to 158 °F)
  • 900 MHz / 915 MHz / 2.4 GHz / 868 MHz
  • Secure AES encryption
  • Class I, Division 1 (Zone 0), Intrinsically Safe

1 - 2 of 2 Part Numbers
WT-0900-LL4
WT-0900-LL4
Direct Mount, 1x Analog Input (0-5 V); Sensor Sold Separately
WT-0900-LL5
WT-0900-LL5
1x Analog Input (0-5 V), 1x Discrete Input; Sensor Sold Separately
1 - 2 of 2 Part Numbers

Specifications

Device Functionality

  • Liquid Level Sensing Wireless Transmitter Using Hydrostatic Technology

Configuration

  • Standard RS-232 Serial with BreeZ Software for PC

Sensor Type

  • Submersible Hydrostatic Pressure Sensor (Sold Separately)

Discrete Input

  • 16-bit Counter (Available on WT-LL5)
  • Debounce Filter 20-2000 ms
  • NPN (Sink)
  • Dry Contact

Wireless Communications

  • 868 MHz: LBT-AFA, AES Encryption 128-bit
  • 2.4 GHz: DSSS, AES Encryption 128-bit
  • 900 MHz / 915 MHz: FHSS, FSK, AES Encryption 256-bit (900 MHz), 128-bit (915 MHz)
  • Radio Band: ISM Band (License-Free)

Certifications & Approvals

  • ATEX: Sira 13ATEX2142X, Ex ia IIC T3 Ga, II 1 G
  • Class I, Zone 0, AEx ia IIC T3
  • Class I, Div. 1, Groups A, B, C, D T3C, Ex ia IIC T3
  • AS/NZS CISPR 32 (Australia), EN 55032 & EN 55024 (EU)
  • FCC Part 15 (USA), IC ICES-003 (Canada), ACMA (Australia)
  • IECEx: SIR 13.0054X, Ex ia IIC T3 Ga

Enclosure Casting Material

  • Type 4X Aluminum

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